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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 21:49:36 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 21:49:36 -0500
commit0ba3307a8ec35252f7b1e222e32889a6f3d9ceb3 (patch)
tree26126ed7a2080a706f0488c215549fc9f5f76a59 /drivers
parent903a9f77d1d00c8621bc37afd959ac45a4b3ebec (diff)
parentcd2f43a1f7400a74a084094502f70df2e169c6e8 (diff)
Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM driver updates from Olof Johansson: "Updates of SoC-near drivers and other driver updates that makes more sense to take through our tree. The largest part of this is a conversion of device registration for some renesas shmobile/sh devices over to use resources. This has required coordination with the corresponding arch/sh changes, and we've agreed to merge the arch/sh changes through our tree. Added in this branch is support for Trusted Foundations secure firmware, which is what is used on many of the commercial Nvidia Tegra products that are in the market, including the Nvidia Shield. The code is local to arch/arm at this time since it's uncertain whether it will be shared with arm64 longer-term, if needed we will refactor later. A couple of new RTC drivers used on ARM boards, merged through our tree on request by the RTC maintainer. ... plus a bunch of smaller updates across the board, gpio conversions for davinci, etc" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits) watchdog: davinci: rename platform driver to davinci-wdt tty: serial: Limit msm_serial_hs driver to platforms that use it mmc: msm_sdcc: Limit driver to platforms that use it usb: phy: msm: Move mach dependent code to platform data clk: versatile: fixup IM-PD1 clock implementation clk: versatile: pass a name to ICST clock provider ARM: integrator: pass parent IRQ to the SIC irqchip: versatile FPGA: support cascaded interrupts from DT gpio: davinci: don't create irq_domain in case of unbanked irqs gpio: davinci: use chained_irq_enter/chained_irq_exit API gpio: davinci: add OF support gpio: davinci: remove unused variable intc_irq_num gpio: davinci: convert to use irqdomain support. gpio: introduce GPIO_DAVINCI kconfig option gpio: davinci: get rid of DAVINCI_N_GPIO gpio: davinci: use {readl|writel}_relaxed() instead of __raw_* serial: sh-sci: Add OF support serial: sh-sci: Add device tree bindings documentation serial: sh-sci: Remove platform data mapbase and irqs fields serial: sh-sci: Remove platform data scbrr_algo_id field ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/bus/mvebu-mbus.c10
-rw-r--r--drivers/clk/versatile/clk-icst.c3
-rw-r--r--drivers/clk/versatile/clk-icst.h1
-rw-r--r--drivers/clk/versatile/clk-impd1.c88
-rw-r--r--drivers/clk/versatile/clk-integrator.c2
-rw-r--r--drivers/clk/versatile/clk-realview.c6
-rw-r--r--drivers/crypto/atmel-aes.c143
-rw-r--r--drivers/crypto/atmel-sha.c103
-rw-r--r--drivers/crypto/atmel-tdes.c143
-rw-r--r--drivers/gpio/Kconfig7
-rw-r--r--drivers/gpio/Makefile2
-rw-r--r--drivers/gpio/gpio-davinci.c185
-rw-r--r--drivers/irqchip/exynos-combiner.c15
-rw-r--r--drivers/irqchip/irq-renesas-irqc.c21
-rw-r--r--drivers/irqchip/irq-versatile-fpga.c15
-rw-r--r--drivers/mmc/host/Kconfig2
-rw-r--r--drivers/rtc/Kconfig18
-rw-r--r--drivers/rtc/Makefile2
-rw-r--r--drivers/rtc/rtc-isl12057.c310
-rw-r--r--drivers/rtc/rtc-sunxi.c523
-rw-r--r--drivers/tty/serial/Kconfig2
-rw-r--r--drivers/tty/serial/sh-sci.c187
-rw-r--r--drivers/usb/host/r8a66597-hcd.c4
-rw-r--r--drivers/usb/phy/phy-msm-usb.c35
-rw-r--r--drivers/watchdog/davinci_wdt.c4
25 files changed, 1518 insertions, 313 deletions
diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index 2394e9753ef5..725c46162bbd 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -588,12 +588,6 @@ static const struct mvebu_mbus_soc_data mv78xx0_mbus_data = {
588 .show_cpu_target = mvebu_sdram_debug_show_orion, 588 .show_cpu_target = mvebu_sdram_debug_show_orion,
589}; 589};
590 590
591/*
592 * The driver doesn't yet have a DT binding because the details of
593 * this DT binding still need to be sorted out. However, as a
594 * preparation, we already use of_device_id to match a SoC description
595 * string against the SoC specific details of this driver.
596 */
597static const struct of_device_id of_mvebu_mbus_ids[] = { 591static const struct of_device_id of_mvebu_mbus_ids[] = {
598 { .compatible = "marvell,armada370-mbus", 592 { .compatible = "marvell,armada370-mbus",
599 .data = &armada_370_xp_mbus_data, }, 593 .data = &armada_370_xp_mbus_data, },
@@ -734,11 +728,11 @@ int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
734{ 728{
735 const struct of_device_id *of_id; 729 const struct of_device_id *of_id;
736 730
737 for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++) 731 for (of_id = of_mvebu_mbus_ids; of_id->compatible[0]; of_id++)
738 if (!strcmp(of_id->compatible, soc)) 732 if (!strcmp(of_id->compatible, soc))
739 break; 733 break;
740 734
741 if (!of_id->compatible) { 735 if (!of_id->compatible[0]) {
742 pr_err("could not find a matching SoC family\n"); 736 pr_err("could not find a matching SoC family\n");
743 return -ENODEV; 737 return -ENODEV;
744 } 738 }
diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c
index f5e4c21b301f..8cbfcf88fae3 100644
--- a/drivers/clk/versatile/clk-icst.c
+++ b/drivers/clk/versatile/clk-icst.c
@@ -119,6 +119,7 @@ static const struct clk_ops icst_ops = {
119 119
120struct clk *icst_clk_register(struct device *dev, 120struct clk *icst_clk_register(struct device *dev,
121 const struct clk_icst_desc *desc, 121 const struct clk_icst_desc *desc,
122 const char *name,
122 void __iomem *base) 123 void __iomem *base)
123{ 124{
124 struct clk *clk; 125 struct clk *clk;
@@ -130,7 +131,7 @@ struct clk *icst_clk_register(struct device *dev,
130 pr_err("could not allocate ICST clock!\n"); 131 pr_err("could not allocate ICST clock!\n");
131 return ERR_PTR(-ENOMEM); 132 return ERR_PTR(-ENOMEM);
132 } 133 }
133 init.name = "icst"; 134 init.name = name;
134 init.ops = &icst_ops; 135 init.ops = &icst_ops;
135 init.flags = CLK_IS_ROOT; 136 init.flags = CLK_IS_ROOT;
136 init.parent_names = NULL; 137 init.parent_names = NULL;
diff --git a/drivers/clk/versatile/clk-icst.h b/drivers/clk/versatile/clk-icst.h
index dad51b6ffd00..be99dd0da785 100644
--- a/drivers/clk/versatile/clk-icst.h
+++ b/drivers/clk/versatile/clk-icst.h
@@ -15,4 +15,5 @@ struct clk_icst_desc {
15 15
16struct clk *icst_clk_register(struct device *dev, 16struct clk *icst_clk_register(struct device *dev,
17 const struct clk_icst_desc *desc, 17 const struct clk_icst_desc *desc,
18 const char *name,
18 void __iomem *base); 19 void __iomem *base);
diff --git a/drivers/clk/versatile/clk-impd1.c b/drivers/clk/versatile/clk-impd1.c
index 369139af2a3b..844f8d711a12 100644
--- a/drivers/clk/versatile/clk-impd1.c
+++ b/drivers/clk/versatile/clk-impd1.c
@@ -1,6 +1,6 @@
1/* 1/*
2 * Clock driver for the ARM Integrator/IM-PD1 board 2 * Clock driver for the ARM Integrator/IM-PD1 board
3 * Copyright (C) 2012 Linus Walleij 3 * Copyright (C) 2012-2013 Linus Walleij
4 * 4 *
5 * This program is free software; you can redistribute it and/or modify 5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as 6 * it under the terms of the GNU General Public License version 2 as
@@ -18,20 +18,28 @@
18#include "clk-icst.h" 18#include "clk-icst.h"
19 19
20struct impd1_clk { 20struct impd1_clk {
21 struct clk *vcoclk; 21 char *vco1name;
22 struct clk *vco1clk;
23 char *vco2name;
24 struct clk *vco2clk;
25 struct clk *mmciclk;
26 char *uartname;
22 struct clk *uartclk; 27 struct clk *uartclk;
23 struct clk_lookup *clks[3]; 28 char *spiname;
29 struct clk *spiclk;
30 char *scname;
31 struct clk *scclk;
32 struct clk_lookup *clks[6];
24}; 33};
25 34
35/* One entry for each connected IM-PD1 LM */
26static struct impd1_clk impd1_clks[4]; 36static struct impd1_clk impd1_clks[4];
27 37
28/* 38/*
29 * There are two VCO's on the IM-PD1 but only one is used by the 39 * There are two VCO's on the IM-PD1
30 * kernel, that is why we are only implementing the control of
31 * IMPD1_OSC1 here.
32 */ 40 */
33 41
34static const struct icst_params impd1_vco_params = { 42static const struct icst_params impd1_vco1_params = {
35 .ref = 24000000, /* 24 MHz */ 43 .ref = 24000000, /* 24 MHz */
36 .vco_max = ICST525_VCO_MAX_3V, 44 .vco_max = ICST525_VCO_MAX_3V,
37 .vco_min = ICST525_VCO_MIN, 45 .vco_min = ICST525_VCO_MIN,
@@ -44,11 +52,29 @@ static const struct icst_params impd1_vco_params = {
44}; 52};
45 53
46static const struct clk_icst_desc impd1_icst1_desc = { 54static const struct clk_icst_desc impd1_icst1_desc = {
47 .params = &impd1_vco_params, 55 .params = &impd1_vco1_params,
48 .vco_offset = IMPD1_OSC1, 56 .vco_offset = IMPD1_OSC1,
49 .lock_offset = IMPD1_LOCK, 57 .lock_offset = IMPD1_LOCK,
50}; 58};
51 59
60static const struct icst_params impd1_vco2_params = {
61 .ref = 24000000, /* 24 MHz */
62 .vco_max = ICST525_VCO_MAX_3V,
63 .vco_min = ICST525_VCO_MIN,
64 .vd_min = 12,
65 .vd_max = 519,
66 .rd_min = 3,
67 .rd_max = 120,
68 .s2div = icst525_s2div,
69 .idx2s = icst525_idx2s,
70};
71
72static const struct clk_icst_desc impd1_icst2_desc = {
73 .params = &impd1_vco2_params,
74 .vco_offset = IMPD1_OSC2,
75 .lock_offset = IMPD1_LOCK,
76};
77
52/** 78/**
53 * integrator_impd1_clk_init() - set up the integrator clock tree 79 * integrator_impd1_clk_init() - set up the integrator clock tree
54 * @base: base address of the logic module (LM) 80 * @base: base address of the logic module (LM)
@@ -66,16 +92,39 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id)
66 } 92 }
67 imc = &impd1_clks[id]; 93 imc = &impd1_clks[id];
68 94
69 clk = icst_clk_register(NULL, &impd1_icst1_desc, base); 95 imc->vco1name = kasprintf(GFP_KERNEL, "lm%x-vco1", id);
70 imc->vcoclk = clk; 96 clk = icst_clk_register(NULL, &impd1_icst1_desc, imc->vco1name, base);
97 imc->vco1clk = clk;
71 imc->clks[0] = clkdev_alloc(clk, NULL, "lm%x:01000", id); 98 imc->clks[0] = clkdev_alloc(clk, NULL, "lm%x:01000", id);
72 99
73 /* UART reference clock */ 100 /* VCO2 is also called "CLK2" */
74 clk = clk_register_fixed_rate(NULL, "uartclk", NULL, CLK_IS_ROOT, 101 imc->vco2name = kasprintf(GFP_KERNEL, "lm%x-vco2", id);
75 14745600); 102 clk = icst_clk_register(NULL, &impd1_icst2_desc, imc->vco2name, base);
103 imc->vco2clk = clk;
104
105 /* MMCI uses CLK2 right off */
106 imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:00700", id);
107
108 /* UART reference clock divides CLK2 by a fixed factor 4 */
109 imc->uartname = kasprintf(GFP_KERNEL, "lm%x-uartclk", id);
110 clk = clk_register_fixed_factor(NULL, imc->uartname, imc->vco2name,
111 CLK_IGNORE_UNUSED, 1, 4);
76 imc->uartclk = clk; 112 imc->uartclk = clk;
77 imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:00100", id); 113 imc->clks[2] = clkdev_alloc(clk, NULL, "lm%x:00100", id);
78 imc->clks[2] = clkdev_alloc(clk, NULL, "lm%x:00200", id); 114 imc->clks[3] = clkdev_alloc(clk, NULL, "lm%x:00200", id);
115
116 /* SPI PL022 clock divides CLK2 by a fixed factor 64 */
117 imc->spiname = kasprintf(GFP_KERNEL, "lm%x-spiclk", id);
118 clk = clk_register_fixed_factor(NULL, imc->spiname, imc->vco2name,
119 CLK_IGNORE_UNUSED, 1, 64);
120 imc->clks[4] = clkdev_alloc(clk, NULL, "lm%x:00300", id);
121
122 /* Smart Card clock divides CLK2 by a fixed factor 4 */
123 imc->scname = kasprintf(GFP_KERNEL, "lm%x-scclk", id);
124 clk = clk_register_fixed_factor(NULL, imc->scname, imc->vco2name,
125 CLK_IGNORE_UNUSED, 1, 4);
126 imc->scclk = clk;
127 imc->clks[5] = clkdev_alloc(clk, NULL, "lm%x:00600", id);
79 128
80 for (i = 0; i < ARRAY_SIZE(imc->clks); i++) 129 for (i = 0; i < ARRAY_SIZE(imc->clks); i++)
81 clkdev_add(imc->clks[i]); 130 clkdev_add(imc->clks[i]);
@@ -92,6 +141,13 @@ void integrator_impd1_clk_exit(unsigned int id)
92 141
93 for (i = 0; i < ARRAY_SIZE(imc->clks); i++) 142 for (i = 0; i < ARRAY_SIZE(imc->clks); i++)
94 clkdev_drop(imc->clks[i]); 143 clkdev_drop(imc->clks[i]);
144 clk_unregister(imc->spiclk);
95 clk_unregister(imc->uartclk); 145 clk_unregister(imc->uartclk);
96 clk_unregister(imc->vcoclk); 146 clk_unregister(imc->vco2clk);
147 clk_unregister(imc->vco1clk);
148 kfree(imc->scname);
149 kfree(imc->spiname);
150 kfree(imc->uartname);
151 kfree(imc->vco2name);
152 kfree(imc->vco1name);
97} 153}
diff --git a/drivers/clk/versatile/clk-integrator.c b/drivers/clk/versatile/clk-integrator.c
index 08593b4ee2c9..bda8967e09c2 100644
--- a/drivers/clk/versatile/clk-integrator.c
+++ b/drivers/clk/versatile/clk-integrator.c
@@ -78,7 +78,7 @@ void __init integrator_clk_init(bool is_cp)
78 clk_register_clkdev(clk, NULL, "sp804"); 78 clk_register_clkdev(clk, NULL, "sp804");
79 79
80 /* ICST VCO clock used on the Integrator/CP CLCD */ 80 /* ICST VCO clock used on the Integrator/CP CLCD */
81 clk = icst_clk_register(NULL, &cp_icst_desc, 81 clk = icst_clk_register(NULL, &cp_icst_desc, "icst",
82 __io_address(INTEGRATOR_HDR_BASE)); 82 __io_address(INTEGRATOR_HDR_BASE));
83 clk_register_clkdev(clk, NULL, "clcd"); 83 clk_register_clkdev(clk, NULL, "clcd");
84} 84}
diff --git a/drivers/clk/versatile/clk-realview.c b/drivers/clk/versatile/clk-realview.c
index cda07e70a408..747e7b31117c 100644
--- a/drivers/clk/versatile/clk-realview.c
+++ b/drivers/clk/versatile/clk-realview.c
@@ -84,9 +84,11 @@ void __init realview_clk_init(void __iomem *sysbase, bool is_pb1176)
84 84
85 /* ICST VCO clock */ 85 /* ICST VCO clock */
86 if (is_pb1176) 86 if (is_pb1176)
87 clk = icst_clk_register(NULL, &realview_osc0_desc, sysbase); 87 clk = icst_clk_register(NULL, &realview_osc0_desc,
88 "osc0", sysbase);
88 else 89 else
89 clk = icst_clk_register(NULL, &realview_osc4_desc, sysbase); 90 clk = icst_clk_register(NULL, &realview_osc4_desc,
91 "osc4", sysbase);
90 92
91 clk_register_clkdev(clk, NULL, "dev:clcd"); 93 clk_register_clkdev(clk, NULL, "dev:clcd");
92 clk_register_clkdev(clk, NULL, "issp:clcd"); 94 clk_register_clkdev(clk, NULL, "issp:clcd");
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index c1efd910d97b..d7c9e317423c 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -30,6 +30,7 @@
30#include <linux/irq.h> 30#include <linux/irq.h>
31#include <linux/scatterlist.h> 31#include <linux/scatterlist.h>
32#include <linux/dma-mapping.h> 32#include <linux/dma-mapping.h>
33#include <linux/of_device.h>
33#include <linux/delay.h> 34#include <linux/delay.h>
34#include <linux/crypto.h> 35#include <linux/crypto.h>
35#include <linux/cryptohash.h> 36#include <linux/cryptohash.h>
@@ -39,6 +40,7 @@
39#include <crypto/hash.h> 40#include <crypto/hash.h>
40#include <crypto/internal/hash.h> 41#include <crypto/internal/hash.h>
41#include <linux/platform_data/crypto-atmel.h> 42#include <linux/platform_data/crypto-atmel.h>
43#include <dt-bindings/dma/at91.h>
42#include "atmel-aes-regs.h" 44#include "atmel-aes-regs.h"
43 45
44#define CFB8_BLOCK_SIZE 1 46#define CFB8_BLOCK_SIZE 1
@@ -747,59 +749,50 @@ static int atmel_aes_dma_init(struct atmel_aes_dev *dd,
747 struct crypto_platform_data *pdata) 749 struct crypto_platform_data *pdata)
748{ 750{
749 int err = -ENOMEM; 751 int err = -ENOMEM;
750 dma_cap_mask_t mask_in, mask_out; 752 dma_cap_mask_t mask;
753
754 dma_cap_zero(mask);
755 dma_cap_set(DMA_SLAVE, mask);
756
757 /* Try to grab 2 DMA channels */
758 dd->dma_lch_in.chan = dma_request_slave_channel_compat(mask,
759 atmel_aes_filter, &pdata->dma_slave->rxdata, dd->dev, "tx");
760 if (!dd->dma_lch_in.chan)
761 goto err_dma_in;
762
763 dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
764 dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
765 AES_IDATAR(0);
766 dd->dma_lch_in.dma_conf.src_maxburst = dd->caps.max_burst_size;
767 dd->dma_lch_in.dma_conf.src_addr_width =
768 DMA_SLAVE_BUSWIDTH_4_BYTES;
769 dd->dma_lch_in.dma_conf.dst_maxburst = dd->caps.max_burst_size;
770 dd->dma_lch_in.dma_conf.dst_addr_width =
771 DMA_SLAVE_BUSWIDTH_4_BYTES;
772 dd->dma_lch_in.dma_conf.device_fc = false;
773
774 dd->dma_lch_out.chan = dma_request_slave_channel_compat(mask,
775 atmel_aes_filter, &pdata->dma_slave->txdata, dd->dev, "rx");
776 if (!dd->dma_lch_out.chan)
777 goto err_dma_out;
778
779 dd->dma_lch_out.dma_conf.direction = DMA_DEV_TO_MEM;
780 dd->dma_lch_out.dma_conf.src_addr = dd->phys_base +
781 AES_ODATAR(0);
782 dd->dma_lch_out.dma_conf.src_maxburst = dd->caps.max_burst_size;
783 dd->dma_lch_out.dma_conf.src_addr_width =
784 DMA_SLAVE_BUSWIDTH_4_BYTES;
785 dd->dma_lch_out.dma_conf.dst_maxburst = dd->caps.max_burst_size;
786 dd->dma_lch_out.dma_conf.dst_addr_width =
787 DMA_SLAVE_BUSWIDTH_4_BYTES;
788 dd->dma_lch_out.dma_conf.device_fc = false;
751 789
752 if (pdata && pdata->dma_slave->txdata.dma_dev && 790 return 0;
753 pdata->dma_slave->rxdata.dma_dev) {
754
755 /* Try to grab 2 DMA channels */
756 dma_cap_zero(mask_in);
757 dma_cap_set(DMA_SLAVE, mask_in);
758
759 dd->dma_lch_in.chan = dma_request_channel(mask_in,
760 atmel_aes_filter, &pdata->dma_slave->rxdata);
761
762 if (!dd->dma_lch_in.chan)
763 goto err_dma_in;
764
765 dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
766 dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
767 AES_IDATAR(0);
768 dd->dma_lch_in.dma_conf.src_maxburst = dd->caps.max_burst_size;
769 dd->dma_lch_in.dma_conf.src_addr_width =
770 DMA_SLAVE_BUSWIDTH_4_BYTES;
771 dd->dma_lch_in.dma_conf.dst_maxburst = dd->caps.max_burst_size;
772 dd->dma_lch_in.dma_conf.dst_addr_width =
773 DMA_SLAVE_BUSWIDTH_4_BYTES;
774 dd->dma_lch_in.dma_conf.device_fc = false;
775
776 dma_cap_zero(mask_out);
777 dma_cap_set(DMA_SLAVE, mask_out);
778 dd->dma_lch_out.chan = dma_request_channel(mask_out,
779 atmel_aes_filter, &pdata->dma_slave->txdata);
780
781 if (!dd->dma_lch_out.chan)
782 goto err_dma_out;
783
784 dd->dma_lch_out.dma_conf.direction = DMA_DEV_TO_MEM;
785 dd->dma_lch_out.dma_conf.src_addr = dd->phys_base +
786 AES_ODATAR(0);
787 dd->dma_lch_out.dma_conf.src_maxburst = dd->caps.max_burst_size;
788 dd->dma_lch_out.dma_conf.src_addr_width =
789 DMA_SLAVE_BUSWIDTH_4_BYTES;
790 dd->dma_lch_out.dma_conf.dst_maxburst = dd->caps.max_burst_size;
791 dd->dma_lch_out.dma_conf.dst_addr_width =
792 DMA_SLAVE_BUSWIDTH_4_BYTES;
793 dd->dma_lch_out.dma_conf.device_fc = false;
794
795 return 0;
796 } else {
797 return -ENODEV;
798 }
799 791
800err_dma_out: 792err_dma_out:
801 dma_release_channel(dd->dma_lch_in.chan); 793 dma_release_channel(dd->dma_lch_in.chan);
802err_dma_in: 794err_dma_in:
795 dev_warn(dd->dev, "no DMA channel available\n");
803 return err; 796 return err;
804} 797}
805 798
@@ -1261,6 +1254,47 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
1261 } 1254 }
1262} 1255}
1263 1256
1257#if defined(CONFIG_OF)
1258static const struct of_device_id atmel_aes_dt_ids[] = {
1259 { .compatible = "atmel,at91sam9g46-aes" },
1260 { /* sentinel */ }
1261};
1262MODULE_DEVICE_TABLE(of, atmel_aes_dt_ids);
1263
1264static struct crypto_platform_data *atmel_aes_of_init(struct platform_device *pdev)
1265{
1266 struct device_node *np = pdev->dev.of_node;
1267 struct crypto_platform_data *pdata;
1268
1269 if (!np) {
1270 dev_err(&pdev->dev, "device node not found\n");
1271 return ERR_PTR(-EINVAL);
1272 }
1273
1274 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1275 if (!pdata) {
1276 dev_err(&pdev->dev, "could not allocate memory for pdata\n");
1277 return ERR_PTR(-ENOMEM);
1278 }
1279
1280 pdata->dma_slave = devm_kzalloc(&pdev->dev,
1281 sizeof(*(pdata->dma_slave)),
1282 GFP_KERNEL);
1283 if (!pdata->dma_slave) {
1284 dev_err(&pdev->dev, "could not allocate memory for dma_slave\n");
1285 devm_kfree(&pdev->dev, pdata);
1286 return ERR_PTR(-ENOMEM);
1287 }
1288
1289 return pdata;
1290}
1291#else
1292static inline struct crypto_platform_data *atmel_aes_of_init(struct platform_device *pdev)
1293{
1294 return ERR_PTR(-EINVAL);
1295}
1296#endif
1297
1264static int atmel_aes_probe(struct platform_device *pdev) 1298static int atmel_aes_probe(struct platform_device *pdev)
1265{ 1299{
1266 struct atmel_aes_dev *aes_dd; 1300 struct atmel_aes_dev *aes_dd;
@@ -1272,6 +1306,14 @@ static int atmel_aes_probe(struct platform_device *pdev)
1272 1306
1273 pdata = pdev->dev.platform_data; 1307 pdata = pdev->dev.platform_data;
1274 if (!pdata) { 1308 if (!pdata) {
1309 pdata = atmel_aes_of_init(pdev);
1310 if (IS_ERR(pdata)) {
1311 err = PTR_ERR(pdata);
1312 goto aes_dd_err;
1313 }
1314 }
1315
1316 if (!pdata->dma_slave) {
1275 err = -ENXIO; 1317 err = -ENXIO;
1276 goto aes_dd_err; 1318 goto aes_dd_err;
1277 } 1319 }
@@ -1358,7 +1400,9 @@ static int atmel_aes_probe(struct platform_device *pdev)
1358 if (err) 1400 if (err)
1359 goto err_algs; 1401 goto err_algs;
1360 1402
1361 dev_info(dev, "Atmel AES\n"); 1403 dev_info(dev, "Atmel AES - Using %s, %s for DMA transfers\n",
1404 dma_chan_name(aes_dd->dma_lch_in.chan),
1405 dma_chan_name(aes_dd->dma_lch_out.chan));
1362 1406
1363 return 0; 1407 return 0;
1364 1408
@@ -1424,6 +1468,7 @@ static struct platform_driver atmel_aes_driver = {
1424 .driver = { 1468 .driver = {
1425 .name = "atmel_aes", 1469 .name = "atmel_aes",
1426 .owner = THIS_MODULE, 1470 .owner = THIS_MODULE,
1471 .of_match_table = of_match_ptr(atmel_aes_dt_ids),
1427 }, 1472 },
1428}; 1473};
1429 1474
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index eaed8bf183bc..0618be06b9fb 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -30,6 +30,7 @@
30#include <linux/irq.h> 30#include <linux/irq.h>
31#include <linux/scatterlist.h> 31#include <linux/scatterlist.h>
32#include <linux/dma-mapping.h> 32#include <linux/dma-mapping.h>
33#include <linux/of_device.h>
33#include <linux/delay.h> 34#include <linux/delay.h>
34#include <linux/crypto.h> 35#include <linux/crypto.h>
35#include <linux/cryptohash.h> 36#include <linux/cryptohash.h>
@@ -1263,32 +1264,29 @@ static int atmel_sha_dma_init(struct atmel_sha_dev *dd,
1263 int err = -ENOMEM; 1264 int err = -ENOMEM;
1264 dma_cap_mask_t mask_in; 1265 dma_cap_mask_t mask_in;
1265 1266
1266 if (pdata && pdata->dma_slave->rxdata.dma_dev) { 1267 /* Try to grab DMA channel */
1267 /* Try to grab DMA channel */ 1268 dma_cap_zero(mask_in);
1268 dma_cap_zero(mask_in); 1269 dma_cap_set(DMA_SLAVE, mask_in);
1269 dma_cap_set(DMA_SLAVE, mask_in);
1270 1270
1271 dd->dma_lch_in.chan = dma_request_channel(mask_in, 1271 dd->dma_lch_in.chan = dma_request_slave_channel_compat(mask_in,
1272 atmel_sha_filter, &pdata->dma_slave->rxdata); 1272 atmel_sha_filter, &pdata->dma_slave->rxdata, dd->dev, "tx");
1273 1273 if (!dd->dma_lch_in.chan) {
1274 if (!dd->dma_lch_in.chan) 1274 dev_warn(dd->dev, "no DMA channel available\n");
1275 return err; 1275 return err;
1276
1277 dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
1278 dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
1279 SHA_REG_DIN(0);
1280 dd->dma_lch_in.dma_conf.src_maxburst = 1;
1281 dd->dma_lch_in.dma_conf.src_addr_width =
1282 DMA_SLAVE_BUSWIDTH_4_BYTES;
1283 dd->dma_lch_in.dma_conf.dst_maxburst = 1;
1284 dd->dma_lch_in.dma_conf.dst_addr_width =
1285 DMA_SLAVE_BUSWIDTH_4_BYTES;
1286 dd->dma_lch_in.dma_conf.device_fc = false;
1287
1288 return 0;
1289 } 1276 }
1290 1277
1291 return -ENODEV; 1278 dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
1279 dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
1280 SHA_REG_DIN(0);
1281 dd->dma_lch_in.dma_conf.src_maxburst = 1;
1282 dd->dma_lch_in.dma_conf.src_addr_width =
1283 DMA_SLAVE_BUSWIDTH_4_BYTES;
1284 dd->dma_lch_in.dma_conf.dst_maxburst = 1;
1285 dd->dma_lch_in.dma_conf.dst_addr_width =
1286 DMA_SLAVE_BUSWIDTH_4_BYTES;
1287 dd->dma_lch_in.dma_conf.device_fc = false;
1288
1289 return 0;
1292} 1290}
1293 1291
1294static void atmel_sha_dma_cleanup(struct atmel_sha_dev *dd) 1292static void atmel_sha_dma_cleanup(struct atmel_sha_dev *dd)
@@ -1326,6 +1324,48 @@ static void atmel_sha_get_cap(struct atmel_sha_dev *dd)
1326 } 1324 }
1327} 1325}
1328 1326
1327#if defined(CONFIG_OF)
1328static const struct of_device_id atmel_sha_dt_ids[] = {
1329 { .compatible = "atmel,at91sam9g46-sha" },
1330 { /* sentinel */ }
1331};
1332
1333MODULE_DEVICE_TABLE(of, atmel_sha_dt_ids);
1334
1335static struct crypto_platform_data *atmel_sha_of_init(struct platform_device *pdev)
1336{
1337 struct device_node *np = pdev->dev.of_node;
1338 struct crypto_platform_data *pdata;
1339
1340 if (!np) {
1341 dev_err(&pdev->dev, "device node not found\n");
1342 return ERR_PTR(-EINVAL);
1343 }
1344
1345 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1346 if (!pdata) {
1347 dev_err(&pdev->dev, "could not allocate memory for pdata\n");
1348 return ERR_PTR(-ENOMEM);
1349 }
1350
1351 pdata->dma_slave = devm_kzalloc(&pdev->dev,
1352 sizeof(*(pdata->dma_slave)),
1353 GFP_KERNEL);
1354 if (!pdata->dma_slave) {
1355 dev_err(&pdev->dev, "could not allocate memory for dma_slave\n");
1356 devm_kfree(&pdev->dev, pdata);
1357 return ERR_PTR(-ENOMEM);
1358 }
1359
1360 return pdata;
1361}
1362#else /* CONFIG_OF */
1363static inline struct crypto_platform_data *atmel_sha_of_init(struct platform_device *dev)
1364{
1365 return ERR_PTR(-EINVAL);
1366}
1367#endif
1368
1329static int atmel_sha_probe(struct platform_device *pdev) 1369static int atmel_sha_probe(struct platform_device *pdev)
1330{ 1370{
1331 struct atmel_sha_dev *sha_dd; 1371 struct atmel_sha_dev *sha_dd;
@@ -1402,13 +1442,23 @@ static int atmel_sha_probe(struct platform_device *pdev)
1402 if (sha_dd->caps.has_dma) { 1442 if (sha_dd->caps.has_dma) {
1403 pdata = pdev->dev.platform_data; 1443 pdata = pdev->dev.platform_data;
1404 if (!pdata) { 1444 if (!pdata) {
1405 dev_err(&pdev->dev, "platform data not available\n"); 1445 pdata = atmel_sha_of_init(pdev);
1446 if (IS_ERR(pdata)) {
1447 dev_err(&pdev->dev, "platform data not available\n");
1448 err = PTR_ERR(pdata);
1449 goto err_pdata;
1450 }
1451 }
1452 if (!pdata->dma_slave) {
1406 err = -ENXIO; 1453 err = -ENXIO;
1407 goto err_pdata; 1454 goto err_pdata;
1408 } 1455 }
1409 err = atmel_sha_dma_init(sha_dd, pdata); 1456 err = atmel_sha_dma_init(sha_dd, pdata);
1410 if (err) 1457 if (err)
1411 goto err_sha_dma; 1458 goto err_sha_dma;
1459
1460 dev_info(dev, "using %s for DMA transfers\n",
1461 dma_chan_name(sha_dd->dma_lch_in.chan));
1412 } 1462 }
1413 1463
1414 spin_lock(&atmel_sha.lock); 1464 spin_lock(&atmel_sha.lock);
@@ -1419,7 +1469,9 @@ static int atmel_sha_probe(struct platform_device *pdev)
1419 if (err) 1469 if (err)
1420 goto err_algs; 1470 goto err_algs;
1421 1471
1422 dev_info(dev, "Atmel SHA1/SHA256\n"); 1472 dev_info(dev, "Atmel SHA1/SHA256%s%s\n",
1473 sha_dd->caps.has_sha224 ? "/SHA224" : "",
1474 sha_dd->caps.has_sha_384_512 ? "/SHA384/SHA512" : "");
1423 1475
1424 return 0; 1476 return 0;
1425 1477
@@ -1483,6 +1535,7 @@ static struct platform_driver atmel_sha_driver = {
1483 .driver = { 1535 .driver = {
1484 .name = "atmel_sha", 1536 .name = "atmel_sha",
1485 .owner = THIS_MODULE, 1537 .owner = THIS_MODULE,
1538 .of_match_table = of_match_ptr(atmel_sha_dt_ids),
1486 }, 1539 },
1487}; 1540};
1488 1541
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 4a99564a08e6..6cde5b530c69 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -30,6 +30,7 @@
30#include <linux/irq.h> 30#include <linux/irq.h>
31#include <linux/scatterlist.h> 31#include <linux/scatterlist.h>
32#include <linux/dma-mapping.h> 32#include <linux/dma-mapping.h>
33#include <linux/of_device.h>
33#include <linux/delay.h> 34#include <linux/delay.h>
34#include <linux/crypto.h> 35#include <linux/crypto.h>
35#include <linux/cryptohash.h> 36#include <linux/cryptohash.h>
@@ -716,59 +717,50 @@ static int atmel_tdes_dma_init(struct atmel_tdes_dev *dd,
716 struct crypto_platform_data *pdata) 717 struct crypto_platform_data *pdata)
717{ 718{
718 int err = -ENOMEM; 719 int err = -ENOMEM;
719 dma_cap_mask_t mask_in, mask_out; 720 dma_cap_mask_t mask;
721
722 dma_cap_zero(mask);
723 dma_cap_set(DMA_SLAVE, mask);
724
725 /* Try to grab 2 DMA channels */
726 dd->dma_lch_in.chan = dma_request_slave_channel_compat(mask,
727 atmel_tdes_filter, &pdata->dma_slave->rxdata, dd->dev, "tx");
728 if (!dd->dma_lch_in.chan)
729 goto err_dma_in;
730
731 dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
732 dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
733 TDES_IDATA1R;
734 dd->dma_lch_in.dma_conf.src_maxburst = 1;
735 dd->dma_lch_in.dma_conf.src_addr_width =
736 DMA_SLAVE_BUSWIDTH_4_BYTES;
737 dd->dma_lch_in.dma_conf.dst_maxburst = 1;
738 dd->dma_lch_in.dma_conf.dst_addr_width =
739 DMA_SLAVE_BUSWIDTH_4_BYTES;
740 dd->dma_lch_in.dma_conf.device_fc = false;
741
742 dd->dma_lch_out.chan = dma_request_slave_channel_compat(mask,
743 atmel_tdes_filter, &pdata->dma_slave->txdata, dd->dev, "rx");
744 if (!dd->dma_lch_out.chan)
745 goto err_dma_out;
746
747 dd->dma_lch_out.dma_conf.direction = DMA_DEV_TO_MEM;
748 dd->dma_lch_out.dma_conf.src_addr = dd->phys_base +
749 TDES_ODATA1R;
750 dd->dma_lch_out.dma_conf.src_maxburst = 1;
751 dd->dma_lch_out.dma_conf.src_addr_width =
752 DMA_SLAVE_BUSWIDTH_4_BYTES;
753 dd->dma_lch_out.dma_conf.dst_maxburst = 1;
754 dd->dma_lch_out.dma_conf.dst_addr_width =
755 DMA_SLAVE_BUSWIDTH_4_BYTES;
756 dd->dma_lch_out.dma_conf.device_fc = false;
720 757
721 if (pdata && pdata->dma_slave->txdata.dma_dev && 758 return 0;
722 pdata->dma_slave->rxdata.dma_dev) {
723
724 /* Try to grab 2 DMA channels */
725 dma_cap_zero(mask_in);
726 dma_cap_set(DMA_SLAVE, mask_in);
727
728 dd->dma_lch_in.chan = dma_request_channel(mask_in,
729 atmel_tdes_filter, &pdata->dma_slave->rxdata);
730
731 if (!dd->dma_lch_in.chan)
732 goto err_dma_in;
733
734 dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
735 dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
736 TDES_IDATA1R;
737 dd->dma_lch_in.dma_conf.src_maxburst = 1;
738 dd->dma_lch_in.dma_conf.src_addr_width =
739 DMA_SLAVE_BUSWIDTH_4_BYTES;
740 dd->dma_lch_in.dma_conf.dst_maxburst = 1;
741 dd->dma_lch_in.dma_conf.dst_addr_width =
742 DMA_SLAVE_BUSWIDTH_4_BYTES;
743 dd->dma_lch_in.dma_conf.device_fc = false;
744
745 dma_cap_zero(mask_out);
746 dma_cap_set(DMA_SLAVE, mask_out);
747 dd->dma_lch_out.chan = dma_request_channel(mask_out,
748 atmel_tdes_filter, &pdata->dma_slave->txdata);
749
750 if (!dd->dma_lch_out.chan)
751 goto err_dma_out;
752
753 dd->dma_lch_out.dma_conf.direction = DMA_DEV_TO_MEM;
754 dd->dma_lch_out.dma_conf.src_addr = dd->phys_base +
755 TDES_ODATA1R;
756 dd->dma_lch_out.dma_conf.src_maxburst = 1;
757 dd->dma_lch_out.dma_conf.src_addr_width =
758 DMA_SLAVE_BUSWIDTH_4_BYTES;
759 dd->dma_lch_out.dma_conf.dst_maxburst = 1;
760 dd->dma_lch_out.dma_conf.dst_addr_width =
761 DMA_SLAVE_BUSWIDTH_4_BYTES;
762 dd->dma_lch_out.dma_conf.device_fc = false;
763
764 return 0;
765 } else {
766 return -ENODEV;
767 }
768 759
769err_dma_out: 760err_dma_out:
770 dma_release_channel(dd->dma_lch_in.chan); 761 dma_release_channel(dd->dma_lch_in.chan);
771err_dma_in: 762err_dma_in:
763 dev_warn(dd->dev, "no DMA channel available\n");
772 return err; 764 return err;
773} 765}
774 766
@@ -1317,6 +1309,47 @@ static void atmel_tdes_get_cap(struct atmel_tdes_dev *dd)
1317 } 1309 }
1318} 1310}
1319 1311
1312#if defined(CONFIG_OF)
1313static const struct of_device_id atmel_tdes_dt_ids[] = {
1314 { .compatible = "atmel,at91sam9g46-tdes" },
1315 { /* sentinel */ }
1316};
1317MODULE_DEVICE_TABLE(of, atmel_tdes_dt_ids);
1318
1319static struct crypto_platform_data *atmel_tdes_of_init(struct platform_device *pdev)
1320{
1321 struct device_node *np = pdev->dev.of_node;
1322 struct crypto_platform_data *pdata;
1323
1324 if (!np) {
1325 dev_err(&pdev->dev, "device node not found\n");
1326 return ERR_PTR(-EINVAL);
1327 }
1328
1329 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1330 if (!pdata) {
1331 dev_err(&pdev->dev, "could not allocate memory for pdata\n");
1332 return ERR_PTR(-ENOMEM);
1333 }
1334
1335 pdata->dma_slave = devm_kzalloc(&pdev->dev,
1336 sizeof(*(pdata->dma_slave)),
1337 GFP_KERNEL);
1338 if (!pdata->dma_slave) {
1339 dev_err(&pdev->dev, "could not allocate memory for dma_slave\n");
1340 devm_kfree(&pdev->dev, pdata);
1341 return ERR_PTR(-ENOMEM);
1342 }
1343
1344 return pdata;
1345}
1346#else /* CONFIG_OF */
1347static inline struct crypto_platform_data *atmel_tdes_of_init(struct platform_device *pdev)
1348{
1349 return ERR_PTR(-EINVAL);
1350}
1351#endif
1352
1320static int atmel_tdes_probe(struct platform_device *pdev) 1353static int atmel_tdes_probe(struct platform_device *pdev)
1321{ 1354{
1322 struct atmel_tdes_dev *tdes_dd; 1355 struct atmel_tdes_dev *tdes_dd;
@@ -1399,13 +1432,24 @@ static int atmel_tdes_probe(struct platform_device *pdev)
1399 if (tdes_dd->caps.has_dma) { 1432 if (tdes_dd->caps.has_dma) {
1400 pdata = pdev->dev.platform_data; 1433 pdata = pdev->dev.platform_data;
1401 if (!pdata) { 1434 if (!pdata) {
1402 dev_err(&pdev->dev, "platform data not available\n"); 1435 pdata = atmel_tdes_of_init(pdev);
1436 if (IS_ERR(pdata)) {
1437 dev_err(&pdev->dev, "platform data not available\n");
1438 err = PTR_ERR(pdata);
1439 goto err_pdata;
1440 }
1441 }
1442 if (!pdata->dma_slave) {
1403 err = -ENXIO; 1443 err = -ENXIO;
1404 goto err_pdata; 1444 goto err_pdata;
1405 } 1445 }
1406 err = atmel_tdes_dma_init(tdes_dd, pdata); 1446 err = atmel_tdes_dma_init(tdes_dd, pdata);
1407 if (err) 1447 if (err)
1408 goto err_tdes_dma; 1448 goto err_tdes_dma;
1449
1450 dev_info(dev, "using %s, %s for DMA transfers\n",
1451 dma_chan_name(tdes_dd->dma_lch_in.chan),
1452 dma_chan_name(tdes_dd->dma_lch_out.chan));
1409 } 1453 }
1410 1454
1411 spin_lock(&atmel_tdes.lock); 1455 spin_lock(&atmel_tdes.lock);
@@ -1487,6 +1531,7 @@ static struct platform_driver atmel_tdes_driver = {
1487 .driver = { 1531 .driver = {
1488 .name = "atmel_tdes", 1532 .name = "atmel_tdes",
1489 .owner = THIS_MODULE, 1533 .owner = THIS_MODULE,
1534 .of_match_table = of_match_ptr(atmel_tdes_dt_ids),
1490 }, 1535 },
1491}; 1536};
1492 1537
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 50cc557abe41..697338772b64 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -115,6 +115,13 @@ config GPIO_CLPS711X
115 help 115 help
116 Say yes here to support GPIO on CLPS711X SoCs. 116 Say yes here to support GPIO on CLPS711X SoCs.
117 117
118config GPIO_DAVINCI
119 bool "TI Davinci/Keystone GPIO support"
120 default y if ARCH_DAVINCI
121 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
122 help
123 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
124
118config GPIO_GENERIC_PLATFORM 125config GPIO_GENERIC_PLATFORM
119 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 126 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
120 select GPIO_GENERIC 127 select GPIO_GENERIC
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 0248471402e4..5d50179ece16 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -22,7 +22,7 @@ obj-$(CONFIG_GPIO_CLPS711X) += gpio-clps711x.o
22obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o 22obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o
23obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o 23obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o
24obj-$(CONFIG_GPIO_DA9055) += gpio-da9055.o 24obj-$(CONFIG_GPIO_DA9055) += gpio-da9055.o
25obj-$(CONFIG_ARCH_DAVINCI) += gpio-davinci.o 25obj-$(CONFIG_GPIO_DAVINCI) += gpio-davinci.o
26obj-$(CONFIG_GPIO_EM) += gpio-em.o 26obj-$(CONFIG_GPIO_EM) += gpio-em.o
27obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o 27obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
28obj-$(CONFIG_GPIO_F7188X) += gpio-f7188x.o 28obj-$(CONFIG_GPIO_F7188X) += gpio-f7188x.o
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 84be70157ad6..7629b4f12b7f 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -16,8 +16,13 @@
16#include <linux/err.h> 16#include <linux/err.h>
17#include <linux/io.h> 17#include <linux/io.h>
18#include <linux/irq.h> 18#include <linux/irq.h>
19#include <linux/irqdomain.h>
20#include <linux/module.h>
21#include <linux/of.h>
22#include <linux/of_device.h>
19#include <linux/platform_device.h> 23#include <linux/platform_device.h>
20#include <linux/platform_data/gpio-davinci.h> 24#include <linux/platform_data/gpio-davinci.h>
25#include <linux/irqchip/chained_irq.h>
21 26
22struct davinci_gpio_regs { 27struct davinci_gpio_regs {
23 u32 dir; 28 u32 dir;
@@ -82,14 +87,14 @@ static inline int __davinci_direction(struct gpio_chip *chip,
82 u32 mask = 1 << offset; 87 u32 mask = 1 << offset;
83 88
84 spin_lock_irqsave(&d->lock, flags); 89 spin_lock_irqsave(&d->lock, flags);
85 temp = __raw_readl(&g->dir); 90 temp = readl_relaxed(&g->dir);
86 if (out) { 91 if (out) {
87 temp &= ~mask; 92 temp &= ~mask;
88 __raw_writel(mask, value ? &g->set_data : &g->clr_data); 93 writel_relaxed(mask, value ? &g->set_data : &g->clr_data);
89 } else { 94 } else {
90 temp |= mask; 95 temp |= mask;
91 } 96 }
92 __raw_writel(temp, &g->dir); 97 writel_relaxed(temp, &g->dir);
93 spin_unlock_irqrestore(&d->lock, flags); 98 spin_unlock_irqrestore(&d->lock, flags);
94 99
95 return 0; 100 return 0;
@@ -118,7 +123,7 @@ static int davinci_gpio_get(struct gpio_chip *chip, unsigned offset)
118 struct davinci_gpio_controller *d = chip2controller(chip); 123 struct davinci_gpio_controller *d = chip2controller(chip);
119 struct davinci_gpio_regs __iomem *g = d->regs; 124 struct davinci_gpio_regs __iomem *g = d->regs;
120 125
121 return (1 << offset) & __raw_readl(&g->in_data); 126 return (1 << offset) & readl_relaxed(&g->in_data);
122} 127}
123 128
124/* 129/*
@@ -130,7 +135,41 @@ davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
130 struct davinci_gpio_controller *d = chip2controller(chip); 135 struct davinci_gpio_controller *d = chip2controller(chip);
131 struct davinci_gpio_regs __iomem *g = d->regs; 136 struct davinci_gpio_regs __iomem *g = d->regs;
132 137
133 __raw_writel((1 << offset), value ? &g->set_data : &g->clr_data); 138 writel_relaxed((1 << offset), value ? &g->set_data : &g->clr_data);
139}
140
141static struct davinci_gpio_platform_data *
142davinci_gpio_get_pdata(struct platform_device *pdev)
143{
144 struct device_node *dn = pdev->dev.of_node;
145 struct davinci_gpio_platform_data *pdata;
146 int ret;
147 u32 val;
148
149 if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
150 return pdev->dev.platform_data;
151
152 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
153 if (!pdata)
154 return NULL;
155
156 ret = of_property_read_u32(dn, "ti,ngpio", &val);
157 if (ret)
158 goto of_err;
159
160 pdata->ngpio = val;
161
162 ret = of_property_read_u32(dn, "ti,davinci-gpio-unbanked", &val);
163 if (ret)
164 goto of_err;
165
166 pdata->gpio_unbanked = val;
167
168 return pdata;
169
170of_err:
171 dev_err(&pdev->dev, "Populating pdata from DT failed: err %d\n", ret);
172 return NULL;
134} 173}
135 174
136static int davinci_gpio_probe(struct platform_device *pdev) 175static int davinci_gpio_probe(struct platform_device *pdev)
@@ -143,12 +182,14 @@ static int davinci_gpio_probe(struct platform_device *pdev)
143 struct device *dev = &pdev->dev; 182 struct device *dev = &pdev->dev;
144 struct resource *res; 183 struct resource *res;
145 184
146 pdata = dev->platform_data; 185 pdata = davinci_gpio_get_pdata(pdev);
147 if (!pdata) { 186 if (!pdata) {
148 dev_err(dev, "No platform data found\n"); 187 dev_err(dev, "No platform data found\n");
149 return -EINVAL; 188 return -EINVAL;
150 } 189 }
151 190
191 dev->platform_data = pdata;
192
152 /* 193 /*
153 * The gpio banks conceptually expose a segmented bitmap, 194 * The gpio banks conceptually expose a segmented bitmap,
154 * and "ngpio" is one more than the largest zero-based 195 * and "ngpio" is one more than the largest zero-based
@@ -160,8 +201,8 @@ static int davinci_gpio_probe(struct platform_device *pdev)
160 return -EINVAL; 201 return -EINVAL;
161 } 202 }
162 203
163 if (WARN_ON(DAVINCI_N_GPIO < ngpio)) 204 if (WARN_ON(ARCH_NR_GPIOS < ngpio))
164 ngpio = DAVINCI_N_GPIO; 205 ngpio = ARCH_NR_GPIOS;
165 206
166 chips = devm_kzalloc(dev, 207 chips = devm_kzalloc(dev,
167 ngpio * sizeof(struct davinci_gpio_controller), 208 ngpio * sizeof(struct davinci_gpio_controller),
@@ -194,6 +235,9 @@ static int davinci_gpio_probe(struct platform_device *pdev)
194 if (chips[i].chip.ngpio > 32) 235 if (chips[i].chip.ngpio > 32)
195 chips[i].chip.ngpio = 32; 236 chips[i].chip.ngpio = 32;
196 237
238#ifdef CONFIG_OF_GPIO
239 chips[i].chip.of_node = dev->of_node;
240#endif
197 spin_lock_init(&chips[i].lock); 241 spin_lock_init(&chips[i].lock);
198 242
199 regs = gpio2regs(base); 243 regs = gpio2regs(base);
@@ -227,8 +271,8 @@ static void gpio_irq_disable(struct irq_data *d)
227 struct davinci_gpio_regs __iomem *g = irq2regs(d->irq); 271 struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
228 u32 mask = (u32) irq_data_get_irq_handler_data(d); 272 u32 mask = (u32) irq_data_get_irq_handler_data(d);
229 273
230 __raw_writel(mask, &g->clr_falling); 274 writel_relaxed(mask, &g->clr_falling);
231 __raw_writel(mask, &g->clr_rising); 275 writel_relaxed(mask, &g->clr_rising);
232} 276}
233 277
234static void gpio_irq_enable(struct irq_data *d) 278static void gpio_irq_enable(struct irq_data *d)
@@ -242,9 +286,9 @@ static void gpio_irq_enable(struct irq_data *d)
242 status = IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING; 286 status = IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING;
243 287
244 if (status & IRQ_TYPE_EDGE_FALLING) 288 if (status & IRQ_TYPE_EDGE_FALLING)
245 __raw_writel(mask, &g->set_falling); 289 writel_relaxed(mask, &g->set_falling);
246 if (status & IRQ_TYPE_EDGE_RISING) 290 if (status & IRQ_TYPE_EDGE_RISING)
247 __raw_writel(mask, &g->set_rising); 291 writel_relaxed(mask, &g->set_rising);
248} 292}
249 293
250static int gpio_irq_type(struct irq_data *d, unsigned trigger) 294static int gpio_irq_type(struct irq_data *d, unsigned trigger)
@@ -278,34 +322,28 @@ gpio_irq_handler(unsigned irq, struct irq_desc *desc)
278 mask <<= 16; 322 mask <<= 16;
279 323
280 /* temporarily mask (level sensitive) parent IRQ */ 324 /* temporarily mask (level sensitive) parent IRQ */
281 desc->irq_data.chip->irq_mask(&desc->irq_data); 325 chained_irq_enter(irq_desc_get_chip(desc), desc);
282 desc->irq_data.chip->irq_ack(&desc->irq_data);
283 while (1) { 326 while (1) {
284 u32 status; 327 u32 status;
285 int n; 328 int bit;
286 int res;
287 329
288 /* ack any irqs */ 330 /* ack any irqs */
289 status = __raw_readl(&g->intstat) & mask; 331 status = readl_relaxed(&g->intstat) & mask;
290 if (!status) 332 if (!status)
291 break; 333 break;
292 __raw_writel(status, &g->intstat); 334 writel_relaxed(status, &g->intstat);
293 335
294 /* now demux them to the right lowlevel handler */ 336 /* now demux them to the right lowlevel handler */
295 n = d->irq_base;
296 if (irq & 1) {
297 n += 16;
298 status >>= 16;
299 }
300 337
301 while (status) { 338 while (status) {
302 res = ffs(status); 339 bit = __ffs(status);
303 n += res; 340 status &= ~BIT(bit);
304 generic_handle_irq(n - 1); 341 generic_handle_irq(
305 status >>= res; 342 irq_find_mapping(d->irq_domain,
343 d->chip.base + bit));
306 } 344 }
307 } 345 }
308 desc->irq_data.chip->irq_unmask(&desc->irq_data); 346 chained_irq_exit(irq_desc_get_chip(desc), desc);
309 /* now it may re-trigger */ 347 /* now it may re-trigger */
310} 348}
311 349
@@ -313,10 +351,10 @@ static int gpio_to_irq_banked(struct gpio_chip *chip, unsigned offset)
313{ 351{
314 struct davinci_gpio_controller *d = chip2controller(chip); 352 struct davinci_gpio_controller *d = chip2controller(chip);
315 353
316 if (d->irq_base >= 0) 354 if (d->irq_domain)
317 return d->irq_base + offset; 355 return irq_create_mapping(d->irq_domain, d->chip.base + offset);
318 else 356 else
319 return -ENODEV; 357 return -ENXIO;
320} 358}
321 359
322static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset) 360static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
@@ -346,14 +384,35 @@ static int gpio_irq_type_unbanked(struct irq_data *data, unsigned trigger)
346 if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)) 384 if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
347 return -EINVAL; 385 return -EINVAL;
348 386
349 __raw_writel(mask, (trigger & IRQ_TYPE_EDGE_FALLING) 387 writel_relaxed(mask, (trigger & IRQ_TYPE_EDGE_FALLING)
350 ? &g->set_falling : &g->clr_falling); 388 ? &g->set_falling : &g->clr_falling);
351 __raw_writel(mask, (trigger & IRQ_TYPE_EDGE_RISING) 389 writel_relaxed(mask, (trigger & IRQ_TYPE_EDGE_RISING)
352 ? &g->set_rising : &g->clr_rising); 390 ? &g->set_rising : &g->clr_rising);
353 391
354 return 0; 392 return 0;
355} 393}
356 394
395static int
396davinci_gpio_irq_map(struct irq_domain *d, unsigned int irq,
397 irq_hw_number_t hw)
398{
399 struct davinci_gpio_regs __iomem *g = gpio2regs(hw);
400
401 irq_set_chip_and_handler_name(irq, &gpio_irqchip, handle_simple_irq,
402 "davinci_gpio");
403 irq_set_irq_type(irq, IRQ_TYPE_NONE);
404 irq_set_chip_data(irq, (__force void *)g);
405 irq_set_handler_data(irq, (void *)__gpio_mask(hw));
406 set_irq_flags(irq, IRQF_VALID);
407
408 return 0;
409}
410
411static const struct irq_domain_ops davinci_gpio_irq_ops = {
412 .map = davinci_gpio_irq_map,
413 .xlate = irq_domain_xlate_onetwocell,
414};
415
357/* 416/*
358 * NOTE: for suspend/resume, probably best to make a platform_device with 417 * NOTE: for suspend/resume, probably best to make a platform_device with
359 * suspend_late/resume_resume calls hooking into results of the set_wake() 418 * suspend_late/resume_resume calls hooking into results of the set_wake()
@@ -373,6 +432,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
373 struct davinci_gpio_controller *chips = platform_get_drvdata(pdev); 432 struct davinci_gpio_controller *chips = platform_get_drvdata(pdev);
374 struct davinci_gpio_platform_data *pdata = dev->platform_data; 433 struct davinci_gpio_platform_data *pdata = dev->platform_data;
375 struct davinci_gpio_regs __iomem *g; 434 struct davinci_gpio_regs __iomem *g;
435 struct irq_domain *irq_domain = NULL;
376 436
377 ngpio = pdata->ngpio; 437 ngpio = pdata->ngpio;
378 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); 438 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -396,6 +456,22 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
396 } 456 }
397 clk_prepare_enable(clk); 457 clk_prepare_enable(clk);
398 458
459 if (!pdata->gpio_unbanked) {
460 irq = irq_alloc_descs(-1, 0, ngpio, 0);
461 if (irq < 0) {
462 dev_err(dev, "Couldn't allocate IRQ numbers\n");
463 return irq;
464 }
465
466 irq_domain = irq_domain_add_legacy(NULL, ngpio, irq, 0,
467 &davinci_gpio_irq_ops,
468 chips);
469 if (!irq_domain) {
470 dev_err(dev, "Couldn't register an IRQ domain\n");
471 return -ENODEV;
472 }
473 }
474
399 /* 475 /*
400 * Arrange gpio_to_irq() support, handling either direct IRQs or 476 * Arrange gpio_to_irq() support, handling either direct IRQs or
401 * banked IRQs. Having GPIOs in the first GPIO bank use direct 477 * banked IRQs. Having GPIOs in the first GPIO bank use direct
@@ -404,9 +480,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
404 */ 480 */
405 for (gpio = 0, bank = 0; gpio < ngpio; bank++, gpio += 32) { 481 for (gpio = 0, bank = 0; gpio < ngpio; bank++, gpio += 32) {
406 chips[bank].chip.to_irq = gpio_to_irq_banked; 482 chips[bank].chip.to_irq = gpio_to_irq_banked;
407 chips[bank].irq_base = pdata->gpio_unbanked 483 chips[bank].irq_domain = irq_domain;
408 ? -EINVAL
409 : (pdata->intc_irq_num + gpio);
410 } 484 }
411 485
412 /* 486 /*
@@ -432,8 +506,8 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
432 506
433 /* default trigger: both edges */ 507 /* default trigger: both edges */
434 g = gpio2regs(0); 508 g = gpio2regs(0);
435 __raw_writel(~0, &g->set_falling); 509 writel_relaxed(~0, &g->set_falling);
436 __raw_writel(~0, &g->set_rising); 510 writel_relaxed(~0, &g->set_rising);
437 511
438 /* set the direct IRQs up to use that irqchip */ 512 /* set the direct IRQs up to use that irqchip */
439 for (gpio = 0; gpio < pdata->gpio_unbanked; gpio++, irq++) { 513 for (gpio = 0; gpio < pdata->gpio_unbanked; gpio++, irq++) {
@@ -449,15 +523,11 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
449 * Or, AINTC can handle IRQs for banks of 16 GPIO IRQs, which we 523 * Or, AINTC can handle IRQs for banks of 16 GPIO IRQs, which we
450 * then chain through our own handler. 524 * then chain through our own handler.
451 */ 525 */
452 for (gpio = 0, irq = gpio_to_irq(0), bank = 0; 526 for (gpio = 0, bank = 0; gpio < ngpio; bank++, bank_irq++, gpio += 16) {
453 gpio < ngpio;
454 bank++, bank_irq++) {
455 unsigned i;
456
457 /* disabled by default, enabled only as needed */ 527 /* disabled by default, enabled only as needed */
458 g = gpio2regs(gpio); 528 g = gpio2regs(gpio);
459 __raw_writel(~0, &g->clr_falling); 529 writel_relaxed(~0, &g->clr_falling);
460 __raw_writel(~0, &g->clr_rising); 530 writel_relaxed(~0, &g->clr_rising);
461 531
462 /* set up all irqs in this bank */ 532 /* set up all irqs in this bank */
463 irq_set_chained_handler(bank_irq, gpio_irq_handler); 533 irq_set_chained_handler(bank_irq, gpio_irq_handler);
@@ -469,14 +539,6 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
469 */ 539 */
470 irq_set_handler_data(bank_irq, &chips[gpio / 32]); 540 irq_set_handler_data(bank_irq, &chips[gpio / 32]);
471 541
472 for (i = 0; i < 16 && gpio < ngpio; i++, irq++, gpio++) {
473 irq_set_chip(irq, &gpio_irqchip);
474 irq_set_chip_data(irq, (__force void *)g);
475 irq_set_handler_data(irq, (void *)__gpio_mask(gpio));
476 irq_set_handler(irq, handle_simple_irq);
477 set_irq_flags(irq, IRQF_VALID);
478 }
479
480 binten |= BIT(bank); 542 binten |= BIT(bank);
481 } 543 }
482 544
@@ -485,18 +547,25 @@ done:
485 * BINTEN -- per-bank interrupt enable. genirq would also let these 547 * BINTEN -- per-bank interrupt enable. genirq would also let these
486 * bits be set/cleared dynamically. 548 * bits be set/cleared dynamically.
487 */ 549 */
488 __raw_writel(binten, gpio_base + BINTEN); 550 writel_relaxed(binten, gpio_base + BINTEN);
489
490 printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0));
491 551
492 return 0; 552 return 0;
493} 553}
494 554
555#if IS_ENABLED(CONFIG_OF)
556static const struct of_device_id davinci_gpio_ids[] = {
557 { .compatible = "ti,dm6441-gpio", },
558 { /* sentinel */ },
559};
560MODULE_DEVICE_TABLE(of, davinci_gpio_ids);
561#endif
562
495static struct platform_driver davinci_gpio_driver = { 563static struct platform_driver davinci_gpio_driver = {
496 .probe = davinci_gpio_probe, 564 .probe = davinci_gpio_probe,
497 .driver = { 565 .driver = {
498 .name = "davinci_gpio", 566 .name = "davinci_gpio",
499 .owner = THIS_MODULE, 567 .owner = THIS_MODULE,
568 .of_match_table = of_match_ptr(davinci_gpio_ids),
500 }, 569 },
501}; 570};
502 571
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index 868ed40cb6bf..40e6440348ff 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -171,8 +171,7 @@ static struct irq_domain_ops combiner_irq_domain_ops = {
171 171
172static void __init combiner_init(void __iomem *combiner_base, 172static void __init combiner_init(void __iomem *combiner_base,
173 struct device_node *np, 173 struct device_node *np,
174 unsigned int max_nr, 174 unsigned int max_nr)
175 int irq_base)
176{ 175{
177 int i, irq; 176 int i, irq;
178 unsigned int nr_irq; 177 unsigned int nr_irq;
@@ -186,7 +185,7 @@ static void __init combiner_init(void __iomem *combiner_base,
186 return; 185 return;
187 } 186 }
188 187
189 combiner_irq_domain = irq_domain_add_simple(np, nr_irq, irq_base, 188 combiner_irq_domain = irq_domain_add_linear(np, nr_irq,
190 &combiner_irq_domain_ops, combiner_data); 189 &combiner_irq_domain_ops, combiner_data);
191 if (WARN_ON(!combiner_irq_domain)) { 190 if (WARN_ON(!combiner_irq_domain)) {
192 pr_warning("%s: irq domain init failed\n", __func__); 191 pr_warning("%s: irq domain init failed\n", __func__);
@@ -207,7 +206,6 @@ static int __init combiner_of_init(struct device_node *np,
207{ 206{
208 void __iomem *combiner_base; 207 void __iomem *combiner_base;
209 unsigned int max_nr = 20; 208 unsigned int max_nr = 20;
210 int irq_base = -1;
211 209
212 combiner_base = of_iomap(np, 0); 210 combiner_base = of_iomap(np, 0);
213 if (!combiner_base) { 211 if (!combiner_base) {
@@ -221,14 +219,7 @@ static int __init combiner_of_init(struct device_node *np,
221 __func__, max_nr); 219 __func__, max_nr);
222 } 220 }
223 221
224 /* 222 combiner_init(combiner_base, np, max_nr);
225 * FIXME: This is a hardwired COMBINER_IRQ(0,0). Once all devices
226 * get their IRQ from DT, remove this in order to get dynamic
227 * allocation.
228 */
229 irq_base = 160;
230
231 combiner_init(combiner_base, np, max_nr, irq_base);
232 223
233 return 0; 224 return 0;
234} 225}
diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
index 2f404ba61c6c..8777065012a5 100644
--- a/drivers/irqchip/irq-renesas-irqc.c
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -81,15 +81,12 @@ static void irqc_irq_disable(struct irq_data *d)
81 iowrite32(BIT(hw_irq), p->cpu_int_base + IRQC_EN_STS); 81 iowrite32(BIT(hw_irq), p->cpu_int_base + IRQC_EN_STS);
82} 82}
83 83
84#define INTC_IRQ_SENSE_VALID 0x10
85#define INTC_IRQ_SENSE(x) (x + INTC_IRQ_SENSE_VALID)
86
87static unsigned char irqc_sense[IRQ_TYPE_SENSE_MASK + 1] = { 84static unsigned char irqc_sense[IRQ_TYPE_SENSE_MASK + 1] = {
88 [IRQ_TYPE_LEVEL_LOW] = INTC_IRQ_SENSE(0x01), 85 [IRQ_TYPE_LEVEL_LOW] = 0x01,
89 [IRQ_TYPE_LEVEL_HIGH] = INTC_IRQ_SENSE(0x02), 86 [IRQ_TYPE_LEVEL_HIGH] = 0x02,
90 [IRQ_TYPE_EDGE_FALLING] = INTC_IRQ_SENSE(0x04), /* Synchronous */ 87 [IRQ_TYPE_EDGE_FALLING] = 0x04, /* Synchronous */
91 [IRQ_TYPE_EDGE_RISING] = INTC_IRQ_SENSE(0x08), /* Synchronous */ 88 [IRQ_TYPE_EDGE_RISING] = 0x08, /* Synchronous */
92 [IRQ_TYPE_EDGE_BOTH] = INTC_IRQ_SENSE(0x0c), /* Synchronous */ 89 [IRQ_TYPE_EDGE_BOTH] = 0x0c, /* Synchronous */
93}; 90};
94 91
95static int irqc_irq_set_type(struct irq_data *d, unsigned int type) 92static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
@@ -101,12 +98,12 @@ static int irqc_irq_set_type(struct irq_data *d, unsigned int type)
101 98
102 irqc_dbg(&p->irq[hw_irq], "sense"); 99 irqc_dbg(&p->irq[hw_irq], "sense");
103 100
104 if (!(value & INTC_IRQ_SENSE_VALID)) 101 if (!value)
105 return -EINVAL; 102 return -EINVAL;
106 103
107 tmp = ioread32(p->iomem + IRQC_CONFIG(hw_irq)); 104 tmp = ioread32(p->iomem + IRQC_CONFIG(hw_irq));
108 tmp &= ~0x3f; 105 tmp &= ~0x3f;
109 tmp |= value ^ INTC_IRQ_SENSE_VALID; 106 tmp |= value;
110 iowrite32(tmp, p->iomem + IRQC_CONFIG(hw_irq)); 107 iowrite32(tmp, p->iomem + IRQC_CONFIG(hw_irq));
111 return 0; 108 return 0;
112} 109}
@@ -212,10 +209,8 @@ static int irqc_probe(struct platform_device *pdev)
212 irq_chip->name = name; 209 irq_chip->name = name;
213 irq_chip->irq_mask = irqc_irq_disable; 210 irq_chip->irq_mask = irqc_irq_disable;
214 irq_chip->irq_unmask = irqc_irq_enable; 211 irq_chip->irq_unmask = irqc_irq_enable;
215 irq_chip->irq_enable = irqc_irq_enable;
216 irq_chip->irq_disable = irqc_irq_disable;
217 irq_chip->irq_set_type = irqc_irq_set_type; 212 irq_chip->irq_set_type = irqc_irq_set_type;
218 irq_chip->flags = IRQCHIP_SKIP_SET_WAKE; 213 irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
219 214
220 p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, 215 p->irq_domain = irq_domain_add_simple(pdev->dev.of_node,
221 p->number_of_irqs, 216 p->number_of_irqs,
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 47a52ab580d8..3ae2bb8d9cf2 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -9,6 +9,7 @@
9#include <linux/module.h> 9#include <linux/module.h>
10#include <linux/of.h> 10#include <linux/of.h>
11#include <linux/of_address.h> 11#include <linux/of_address.h>
12#include <linux/of_irq.h>
12 13
13#include <asm/exception.h> 14#include <asm/exception.h>
14#include <asm/mach/irq.h> 15#include <asm/mach/irq.h>
@@ -167,8 +168,12 @@ void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start,
167 f->used_irqs++; 168 f->used_irqs++;
168 } 169 }
169 170
170 pr_info("FPGA IRQ chip %d \"%s\" @ %p, %u irqs\n", 171 pr_info("FPGA IRQ chip %d \"%s\" @ %p, %u irqs",
171 fpga_irq_id, name, base, f->used_irqs); 172 fpga_irq_id, name, base, f->used_irqs);
173 if (parent_irq != -1)
174 pr_cont(", parent IRQ: %d\n", parent_irq);
175 else
176 pr_cont("\n");
172 177
173 fpga_irq_id++; 178 fpga_irq_id++;
174} 179}
@@ -180,6 +185,7 @@ int __init fpga_irq_of_init(struct device_node *node,
180 void __iomem *base; 185 void __iomem *base;
181 u32 clear_mask; 186 u32 clear_mask;
182 u32 valid_mask; 187 u32 valid_mask;
188 int parent_irq;
183 189
184 if (WARN_ON(!node)) 190 if (WARN_ON(!node))
185 return -ENODEV; 191 return -ENODEV;
@@ -193,7 +199,12 @@ int __init fpga_irq_of_init(struct device_node *node,
193 if (of_property_read_u32(node, "valid-mask", &valid_mask)) 199 if (of_property_read_u32(node, "valid-mask", &valid_mask))
194 valid_mask = 0; 200 valid_mask = 0;
195 201
196 fpga_irq_init(base, node->name, 0, -1, valid_mask, node); 202 /* Some chips are cascaded from a parent IRQ */
203 parent_irq = irq_of_parse_and_map(node, 0);
204 if (!parent_irq)
205 parent_irq = -1;
206
207 fpga_irq_init(base, node->name, 0, parent_irq, valid_mask, node);
197 208
198 writel(clear_mask, base + IRQ_ENABLE_CLEAR); 209 writel(clear_mask, base + IRQ_ENABLE_CLEAR);
199 writel(clear_mask, base + FIQ_ENABLE_CLEAR); 210 writel(clear_mask, base + FIQ_ENABLE_CLEAR);
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 7fc5099e44b2..4e8ca9d5570f 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -324,7 +324,7 @@ config MMC_ATMELMCI
324 324
325config MMC_MSM 325config MMC_MSM
326 tristate "Qualcomm SDCC Controller Support" 326 tristate "Qualcomm SDCC Controller Support"
327 depends on MMC && ARCH_MSM 327 depends on MMC && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
328 help 328 help
329 This provides support for the SD/MMC cell found in the 329 This provides support for the SD/MMC cell found in the
330 MSM and QSD SOCs from Qualcomm. The controller also has 330 MSM and QSD SOCs from Qualcomm. The controller also has
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 007730222116..b1328a45b095 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -304,6 +304,17 @@ config RTC_DRV_ISL12022
304 This driver can also be built as a module. If so, the module 304 This driver can also be built as a module. If so, the module
305 will be called rtc-isl12022. 305 will be called rtc-isl12022.
306 306
307config RTC_DRV_ISL12057
308 depends on I2C
309 select REGMAP_I2C
310 tristate "Intersil ISL12057"
311 help
312 If you say yes here you get support for the Intersil ISL12057
313 I2C RTC chip.
314
315 This driver can also be built as a module. If so, the module
316 will be called rtc-isl12057.
317
307config RTC_DRV_X1205 318config RTC_DRV_X1205
308 tristate "Xicor/Intersil X1205" 319 tristate "Xicor/Intersil X1205"
309 help 320 help
@@ -1104,6 +1115,13 @@ config RTC_DRV_SUN4V
1104 If you say Y here you will get support for the Hypervisor 1115 If you say Y here you will get support for the Hypervisor
1105 based RTC on SUN4V systems. 1116 based RTC on SUN4V systems.
1106 1117
1118config RTC_DRV_SUNXI
1119 tristate "Allwinner sun4i/sun7i RTC"
1120 depends on ARCH_SUNXI
1121 help
1122 If you say Y here you will get support for the RTC found on
1123 Allwinner A10/A20.
1124
1107config RTC_DRV_STARFIRE 1125config RTC_DRV_STARFIRE
1108 bool "Starfire RTC" 1126 bool "Starfire RTC"
1109 depends on SPARC64 1127 depends on SPARC64
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 27b4bd884066..c00741a0bf10 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -58,6 +58,7 @@ obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o
58obj-$(CONFIG_RTC_DRV_IMXDI) += rtc-imxdi.o 58obj-$(CONFIG_RTC_DRV_IMXDI) += rtc-imxdi.o
59obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o 59obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o
60obj-$(CONFIG_RTC_DRV_ISL12022) += rtc-isl12022.o 60obj-$(CONFIG_RTC_DRV_ISL12022) += rtc-isl12022.o
61obj-$(CONFIG_RTC_DRV_ISL12057) += rtc-isl12057.o
61obj-$(CONFIG_RTC_DRV_JZ4740) += rtc-jz4740.o 62obj-$(CONFIG_RTC_DRV_JZ4740) += rtc-jz4740.o
62obj-$(CONFIG_RTC_DRV_LP8788) += rtc-lp8788.o 63obj-$(CONFIG_RTC_DRV_LP8788) += rtc-lp8788.o
63obj-$(CONFIG_RTC_DRV_LPC32XX) += rtc-lpc32xx.o 64obj-$(CONFIG_RTC_DRV_LPC32XX) += rtc-lpc32xx.o
@@ -117,6 +118,7 @@ obj-$(CONFIG_RTC_DRV_STARFIRE) += rtc-starfire.o
117obj-$(CONFIG_RTC_DRV_STK17TA8) += rtc-stk17ta8.o 118obj-$(CONFIG_RTC_DRV_STK17TA8) += rtc-stk17ta8.o
118obj-$(CONFIG_RTC_DRV_STMP) += rtc-stmp3xxx.o 119obj-$(CONFIG_RTC_DRV_STMP) += rtc-stmp3xxx.o
119obj-$(CONFIG_RTC_DRV_SUN4V) += rtc-sun4v.o 120obj-$(CONFIG_RTC_DRV_SUN4V) += rtc-sun4v.o
121obj-$(CONFIG_RTC_DRV_SUNXI) += rtc-sunxi.o
120obj-$(CONFIG_RTC_DRV_TEGRA) += rtc-tegra.o 122obj-$(CONFIG_RTC_DRV_TEGRA) += rtc-tegra.o
121obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o 123obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o
122obj-$(CONFIG_RTC_DRV_TILE) += rtc-tile.o 124obj-$(CONFIG_RTC_DRV_TILE) += rtc-tile.o
diff --git a/drivers/rtc/rtc-isl12057.c b/drivers/rtc/rtc-isl12057.c
new file mode 100644
index 000000000000..7854a656628f
--- /dev/null
+++ b/drivers/rtc/rtc-isl12057.c
@@ -0,0 +1,310 @@
1/*
2 * rtc-isl12057 - Driver for Intersil ISL12057 I2C Real Time Clock
3 *
4 * Copyright (C) 2013, Arnaud EBALARD <arno@natisbad.org>
5 *
6 * This work is largely based on Intersil ISL1208 driver developed by
7 * Hebert Valerio Riedel <hvr@gnu.org>.
8 *
9 * Detailed datasheet on which this development is based is available here:
10 *
11 * http://natisbad.org/NAS2/refs/ISL12057.pdf
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 */
23
24#include <linux/module.h>
25#include <linux/mutex.h>
26#include <linux/rtc.h>
27#include <linux/i2c.h>
28#include <linux/bcd.h>
29#include <linux/rtc.h>
30#include <linux/of.h>
31#include <linux/of_device.h>
32#include <linux/regmap.h>
33
34#define DRV_NAME "rtc-isl12057"
35
36/* RTC section */
37#define ISL12057_REG_RTC_SC 0x00 /* Seconds */
38#define ISL12057_REG_RTC_MN 0x01 /* Minutes */
39#define ISL12057_REG_RTC_HR 0x02 /* Hours */
40#define ISL12057_REG_RTC_HR_PM BIT(5) /* AM/PM bit in 12h format */
41#define ISL12057_REG_RTC_HR_MIL BIT(6) /* 24h/12h format */
42#define ISL12057_REG_RTC_DW 0x03 /* Day of the Week */
43#define ISL12057_REG_RTC_DT 0x04 /* Date */
44#define ISL12057_REG_RTC_MO 0x05 /* Month */
45#define ISL12057_REG_RTC_YR 0x06 /* Year */
46#define ISL12057_RTC_SEC_LEN 7
47
48/* Alarm 1 section */
49#define ISL12057_REG_A1_SC 0x07 /* Alarm 1 Seconds */
50#define ISL12057_REG_A1_MN 0x08 /* Alarm 1 Minutes */
51#define ISL12057_REG_A1_HR 0x09 /* Alarm 1 Hours */
52#define ISL12057_REG_A1_HR_PM BIT(5) /* AM/PM bit in 12h format */
53#define ISL12057_REG_A1_HR_MIL BIT(6) /* 24h/12h format */
54#define ISL12057_REG_A1_DWDT 0x0A /* Alarm 1 Date / Day of the week */
55#define ISL12057_REG_A1_DWDT_B BIT(6) /* DW / DT selection bit */
56#define ISL12057_A1_SEC_LEN 4
57
58/* Alarm 2 section */
59#define ISL12057_REG_A2_MN 0x0B /* Alarm 2 Minutes */
60#define ISL12057_REG_A2_HR 0x0C /* Alarm 2 Hours */
61#define ISL12057_REG_A2_DWDT 0x0D /* Alarm 2 Date / Day of the week */
62#define ISL12057_A2_SEC_LEN 3
63
64/* Control/Status registers */
65#define ISL12057_REG_INT 0x0E
66#define ISL12057_REG_INT_A1IE BIT(0) /* Alarm 1 interrupt enable bit */
67#define ISL12057_REG_INT_A2IE BIT(1) /* Alarm 2 interrupt enable bit */
68#define ISL12057_REG_INT_INTCN BIT(2) /* Interrupt control enable bit */
69#define ISL12057_REG_INT_RS1 BIT(3) /* Freq out control bit 1 */
70#define ISL12057_REG_INT_RS2 BIT(4) /* Freq out control bit 2 */
71#define ISL12057_REG_INT_EOSC BIT(7) /* Oscillator enable bit */
72
73#define ISL12057_REG_SR 0x0F
74#define ISL12057_REG_SR_A1F BIT(0) /* Alarm 1 interrupt bit */
75#define ISL12057_REG_SR_A2F BIT(1) /* Alarm 2 interrupt bit */
76#define ISL12057_REG_SR_OSF BIT(7) /* Oscillator failure bit */
77
78/* Register memory map length */
79#define ISL12057_MEM_MAP_LEN 0x10
80
81struct isl12057_rtc_data {
82 struct regmap *regmap;
83 struct mutex lock;
84};
85
86static void isl12057_rtc_regs_to_tm(struct rtc_time *tm, u8 *regs)
87{
88 tm->tm_sec = bcd2bin(regs[ISL12057_REG_RTC_SC]);
89 tm->tm_min = bcd2bin(regs[ISL12057_REG_RTC_MN]);
90
91 if (regs[ISL12057_REG_RTC_HR] & ISL12057_REG_RTC_HR_MIL) { /* AM/PM */
92 tm->tm_hour = bcd2bin(regs[ISL12057_REG_RTC_HR] & 0x0f);
93 if (regs[ISL12057_REG_RTC_HR] & ISL12057_REG_RTC_HR_PM)
94 tm->tm_hour += 12;
95 } else { /* 24 hour mode */
96 tm->tm_hour = bcd2bin(regs[ISL12057_REG_RTC_HR] & 0x3f);
97 }
98
99 tm->tm_mday = bcd2bin(regs[ISL12057_REG_RTC_DT]);
100 tm->tm_wday = bcd2bin(regs[ISL12057_REG_RTC_DW]) - 1; /* starts at 1 */
101 tm->tm_mon = bcd2bin(regs[ISL12057_REG_RTC_MO]) - 1; /* starts at 1 */
102 tm->tm_year = bcd2bin(regs[ISL12057_REG_RTC_YR]) + 100;
103}
104
105static int isl12057_rtc_tm_to_regs(u8 *regs, struct rtc_time *tm)
106{
107 /*
108 * The clock has an 8 bit wide bcd-coded register for the year.
109 * tm_year is an offset from 1900 and we are interested in the
110 * 2000-2099 range, so any value less than 100 is invalid.
111 */
112 if (tm->tm_year < 100)
113 return -EINVAL;
114
115 regs[ISL12057_REG_RTC_SC] = bin2bcd(tm->tm_sec);
116 regs[ISL12057_REG_RTC_MN] = bin2bcd(tm->tm_min);
117 regs[ISL12057_REG_RTC_HR] = bin2bcd(tm->tm_hour); /* 24-hour format */
118 regs[ISL12057_REG_RTC_DT] = bin2bcd(tm->tm_mday);
119 regs[ISL12057_REG_RTC_MO] = bin2bcd(tm->tm_mon + 1);
120 regs[ISL12057_REG_RTC_YR] = bin2bcd(tm->tm_year - 100);
121 regs[ISL12057_REG_RTC_DW] = bin2bcd(tm->tm_wday + 1);
122
123 return 0;
124}
125
126/*
127 * Try and match register bits w/ fixed null values to see whether we
128 * are dealing with an ISL12057. Note: this function is called early
129 * during init and hence does need mutex protection.
130 */
131static int isl12057_i2c_validate_chip(struct regmap *regmap)
132{
133 u8 regs[ISL12057_MEM_MAP_LEN];
134 static const u8 mask[ISL12057_MEM_MAP_LEN] = { 0x80, 0x80, 0x80, 0xf8,
135 0xc0, 0x60, 0x00, 0x00,
136 0x00, 0x00, 0x00, 0x00,
137 0x00, 0x00, 0x60, 0x7c };
138 int ret, i;
139
140 ret = regmap_bulk_read(regmap, 0, regs, ISL12057_MEM_MAP_LEN);
141 if (ret)
142 return ret;
143
144 for (i = 0; i < ISL12057_MEM_MAP_LEN; ++i) {
145 if (regs[i] & mask[i]) /* check if bits are cleared */
146 return -ENODEV;
147 }
148
149 return 0;
150}
151
152static int isl12057_rtc_read_time(struct device *dev, struct rtc_time *tm)
153{
154 struct isl12057_rtc_data *data = dev_get_drvdata(dev);
155 u8 regs[ISL12057_RTC_SEC_LEN];
156 int ret;
157
158 mutex_lock(&data->lock);
159 ret = regmap_bulk_read(data->regmap, ISL12057_REG_RTC_SC, regs,
160 ISL12057_RTC_SEC_LEN);
161 mutex_unlock(&data->lock);
162
163 if (ret) {
164 dev_err(dev, "%s: RTC read failed\n", __func__);
165 return ret;
166 }
167
168 isl12057_rtc_regs_to_tm(tm, regs);
169
170 return rtc_valid_tm(tm);
171}
172
173static int isl12057_rtc_set_time(struct device *dev, struct rtc_time *tm)
174{
175 struct isl12057_rtc_data *data = dev_get_drvdata(dev);
176 u8 regs[ISL12057_RTC_SEC_LEN];
177 int ret;
178
179 ret = isl12057_rtc_tm_to_regs(regs, tm);
180 if (ret)
181 return ret;
182
183 mutex_lock(&data->lock);
184 ret = regmap_bulk_write(data->regmap, ISL12057_REG_RTC_SC, regs,
185 ISL12057_RTC_SEC_LEN);
186 mutex_unlock(&data->lock);
187
188 if (ret)
189 dev_err(dev, "%s: RTC write failed\n", __func__);
190
191 return ret;
192}
193
194/*
195 * Check current RTC status and enable/disable what needs to be. Return 0 if
196 * everything went ok and a negative value upon error. Note: this function
197 * is called early during init and hence does need mutex protection.
198 */
199static int isl12057_check_rtc_status(struct device *dev, struct regmap *regmap)
200{
201 int ret;
202
203 /* Enable oscillator if not already running */
204 ret = regmap_update_bits(regmap, ISL12057_REG_INT,
205 ISL12057_REG_INT_EOSC, 0);
206 if (ret < 0) {
207 dev_err(dev, "Unable to enable oscillator\n");
208 return ret;
209 }
210
211 /* Clear oscillator failure bit if needed */
212 ret = regmap_update_bits(regmap, ISL12057_REG_SR,
213 ISL12057_REG_SR_OSF, 0);
214 if (ret < 0) {
215 dev_err(dev, "Unable to clear oscillator failure bit\n");
216 return ret;
217 }
218
219 /* Clear alarm bit if needed */
220 ret = regmap_update_bits(regmap, ISL12057_REG_SR,
221 ISL12057_REG_SR_A1F, 0);
222 if (ret < 0) {
223 dev_err(dev, "Unable to clear alarm bit\n");
224 return ret;
225 }
226
227 return 0;
228}
229
230static const struct rtc_class_ops rtc_ops = {
231 .read_time = isl12057_rtc_read_time,
232 .set_time = isl12057_rtc_set_time,
233};
234
235static struct regmap_config isl12057_rtc_regmap_config = {
236 .reg_bits = 8,
237 .val_bits = 8,
238};
239
240static int isl12057_probe(struct i2c_client *client,
241 const struct i2c_device_id *id)
242{
243 struct device *dev = &client->dev;
244 struct isl12057_rtc_data *data;
245 struct rtc_device *rtc;
246 struct regmap *regmap;
247 int ret;
248
249 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C |
250 I2C_FUNC_SMBUS_BYTE_DATA |
251 I2C_FUNC_SMBUS_I2C_BLOCK))
252 return -ENODEV;
253
254 regmap = devm_regmap_init_i2c(client, &isl12057_rtc_regmap_config);
255 if (IS_ERR(regmap)) {
256 ret = PTR_ERR(regmap);
257 dev_err(dev, "regmap allocation failed: %d\n", ret);
258 return ret;
259 }
260
261 ret = isl12057_i2c_validate_chip(regmap);
262 if (ret)
263 return ret;
264
265 ret = isl12057_check_rtc_status(dev, regmap);
266 if (ret)
267 return ret;
268
269 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
270 if (!data)
271 return -ENOMEM;
272
273 mutex_init(&data->lock);
274 data->regmap = regmap;
275 dev_set_drvdata(dev, data);
276
277 rtc = devm_rtc_device_register(dev, DRV_NAME, &rtc_ops, THIS_MODULE);
278 if (IS_ERR(rtc))
279 return PTR_ERR(rtc);
280
281 return 0;
282}
283
284#ifdef CONFIG_OF
285static struct of_device_id isl12057_dt_match[] = {
286 { .compatible = "isl,isl12057" },
287 { },
288};
289#endif
290
291static const struct i2c_device_id isl12057_id[] = {
292 { "isl12057", 0 },
293 { }
294};
295MODULE_DEVICE_TABLE(i2c, isl12057_id);
296
297static struct i2c_driver isl12057_driver = {
298 .driver = {
299 .name = DRV_NAME,
300 .owner = THIS_MODULE,
301 .of_match_table = of_match_ptr(isl12057_dt_match),
302 },
303 .probe = isl12057_probe,
304 .id_table = isl12057_id,
305};
306module_i2c_driver(isl12057_driver);
307
308MODULE_AUTHOR("Arnaud EBALARD <arno@natisbad.org>");
309MODULE_DESCRIPTION("Intersil ISL12057 RTC driver");
310MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c
new file mode 100644
index 000000000000..68a35284e5ad
--- /dev/null
+++ b/drivers/rtc/rtc-sunxi.c
@@ -0,0 +1,523 @@
1/*
2 * An RTC driver for Allwinner A10/A20
3 *
4 * Copyright (c) 2013, Carlo Caione <carlo.caione@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21#include <linux/delay.h>
22#include <linux/err.h>
23#include <linux/fs.h>
24#include <linux/init.h>
25#include <linux/interrupt.h>
26#include <linux/io.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/of.h>
30#include <linux/of_address.h>
31#include <linux/of_device.h>
32#include <linux/platform_device.h>
33#include <linux/rtc.h>
34#include <linux/types.h>
35
36#define SUNXI_LOSC_CTRL 0x0000
37#define SUNXI_LOSC_CTRL_RTC_HMS_ACC BIT(8)
38#define SUNXI_LOSC_CTRL_RTC_YMD_ACC BIT(7)
39
40#define SUNXI_RTC_YMD 0x0004
41
42#define SUNXI_RTC_HMS 0x0008
43
44#define SUNXI_ALRM_DHMS 0x000c
45
46#define SUNXI_ALRM_EN 0x0014
47#define SUNXI_ALRM_EN_CNT_EN BIT(8)
48
49#define SUNXI_ALRM_IRQ_EN 0x0018
50#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
51
52#define SUNXI_ALRM_IRQ_STA 0x001c
53#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
54
55#define SUNXI_MASK_DH 0x0000001f
56#define SUNXI_MASK_SM 0x0000003f
57#define SUNXI_MASK_M 0x0000000f
58#define SUNXI_MASK_LY 0x00000001
59#define SUNXI_MASK_D 0x00000ffe
60#define SUNXI_MASK_M 0x0000000f
61
62#define SUNXI_GET(x, mask, shift) (((x) & ((mask) << (shift))) \
63 >> (shift))
64
65#define SUNXI_SET(x, mask, shift) (((x) & (mask)) << (shift))
66
67/*
68 * Get date values
69 */
70#define SUNXI_DATE_GET_DAY_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 0)
71#define SUNXI_DATE_GET_MON_VALUE(x) SUNXI_GET(x, SUNXI_MASK_M, 8)
72#define SUNXI_DATE_GET_YEAR_VALUE(x, mask) SUNXI_GET(x, mask, 16)
73
74/*
75 * Get time values
76 */
77#define SUNXI_TIME_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
78#define SUNXI_TIME_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
79#define SUNXI_TIME_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
80
81/*
82 * Get alarm values
83 */
84#define SUNXI_ALRM_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
85#define SUNXI_ALRM_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
86#define SUNXI_ALRM_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
87
88/*
89 * Set date values
90 */
91#define SUNXI_DATE_SET_DAY_VALUE(x) SUNXI_DATE_GET_DAY_VALUE(x)
92#define SUNXI_DATE_SET_MON_VALUE(x) SUNXI_SET(x, SUNXI_MASK_M, 8)
93#define SUNXI_DATE_SET_YEAR_VALUE(x, mask) SUNXI_SET(x, mask, 16)
94#define SUNXI_LEAP_SET_VALUE(x, shift) SUNXI_SET(x, SUNXI_MASK_LY, shift)
95
96/*
97 * Set time values
98 */
99#define SUNXI_TIME_SET_SEC_VALUE(x) SUNXI_TIME_GET_SEC_VALUE(x)
100#define SUNXI_TIME_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
101#define SUNXI_TIME_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
102
103/*
104 * Set alarm values
105 */
106#define SUNXI_ALRM_SET_SEC_VALUE(x) SUNXI_ALRM_GET_SEC_VALUE(x)
107#define SUNXI_ALRM_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
108#define SUNXI_ALRM_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
109#define SUNXI_ALRM_SET_DAY_VALUE(x) SUNXI_SET(x, SUNXI_MASK_D, 21)
110
111/*
112 * Time unit conversions
113 */
114#define SEC_IN_MIN 60
115#define SEC_IN_HOUR (60 * SEC_IN_MIN)
116#define SEC_IN_DAY (24 * SEC_IN_HOUR)
117
118/*
119 * The year parameter passed to the driver is usually an offset relative to
120 * the year 1900. This macro is used to convert this offset to another one
121 * relative to the minimum year allowed by the hardware.
122 */
123#define SUNXI_YEAR_OFF(x) ((x)->min - 1900)
124
125/*
126 * min and max year are arbitrary set considering the limited range of the
127 * hardware register field
128 */
129struct sunxi_rtc_data_year {
130 unsigned int min; /* min year allowed */
131 unsigned int max; /* max year allowed */
132 unsigned int mask; /* mask for the year field */
133 unsigned char leap_shift; /* bit shift to get the leap year */
134};
135
136static struct sunxi_rtc_data_year data_year_param[] = {
137 [0] = {
138 .min = 2010,
139 .max = 2073,
140 .mask = 0x3f,
141 .leap_shift = 22,
142 },
143 [1] = {
144 .min = 1970,
145 .max = 2225,
146 .mask = 0xff,
147 .leap_shift = 24,
148 },
149};
150
151struct sunxi_rtc_dev {
152 struct rtc_device *rtc;
153 struct device *dev;
154 struct sunxi_rtc_data_year *data_year;
155 void __iomem *base;
156 int irq;
157};
158
159static irqreturn_t sunxi_rtc_alarmirq(int irq, void *id)
160{
161 struct sunxi_rtc_dev *chip = (struct sunxi_rtc_dev *) id;
162 u32 val;
163
164 val = readl(chip->base + SUNXI_ALRM_IRQ_STA);
165
166 if (val & SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND) {
167 val |= SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND;
168 writel(val, chip->base + SUNXI_ALRM_IRQ_STA);
169
170 rtc_update_irq(chip->rtc, 1, RTC_AF | RTC_IRQF);
171
172 return IRQ_HANDLED;
173 }
174
175 return IRQ_NONE;
176}
177
178static void sunxi_rtc_setaie(int to, struct sunxi_rtc_dev *chip)
179{
180 u32 alrm_val = 0;
181 u32 alrm_irq_val = 0;
182
183 if (to) {
184 alrm_val = readl(chip->base + SUNXI_ALRM_EN);
185 alrm_val |= SUNXI_ALRM_EN_CNT_EN;
186
187 alrm_irq_val = readl(chip->base + SUNXI_ALRM_IRQ_EN);
188 alrm_irq_val |= SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN;
189 } else {
190 writel(SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND,
191 chip->base + SUNXI_ALRM_IRQ_STA);
192 }
193
194 writel(alrm_val, chip->base + SUNXI_ALRM_EN);
195 writel(alrm_irq_val, chip->base + SUNXI_ALRM_IRQ_EN);
196}
197
198static int sunxi_rtc_getalarm(struct device *dev, struct rtc_wkalrm *wkalrm)
199{
200 struct sunxi_rtc_dev *chip = dev_get_drvdata(dev);
201 struct rtc_time *alrm_tm = &wkalrm->time;
202 u32 alrm;
203 u32 alrm_en;
204 u32 date;
205
206 alrm = readl(chip->base + SUNXI_ALRM_DHMS);
207 date = readl(chip->base + SUNXI_RTC_YMD);
208
209 alrm_tm->tm_sec = SUNXI_ALRM_GET_SEC_VALUE(alrm);
210 alrm_tm->tm_min = SUNXI_ALRM_GET_MIN_VALUE(alrm);
211 alrm_tm->tm_hour = SUNXI_ALRM_GET_HOUR_VALUE(alrm);
212
213 alrm_tm->tm_mday = SUNXI_DATE_GET_DAY_VALUE(date);
214 alrm_tm->tm_mon = SUNXI_DATE_GET_MON_VALUE(date);
215 alrm_tm->tm_year = SUNXI_DATE_GET_YEAR_VALUE(date,
216 chip->data_year->mask);
217
218 alrm_tm->tm_mon -= 1;
219
220 /*
221 * switch from (data_year->min)-relative offset to
222 * a (1900)-relative one
223 */
224 alrm_tm->tm_year += SUNXI_YEAR_OFF(chip->data_year);
225
226 alrm_en = readl(chip->base + SUNXI_ALRM_IRQ_EN);
227 if (alrm_en & SUNXI_ALRM_EN_CNT_EN)
228 wkalrm->enabled = 1;
229
230 return 0;
231}
232
233static int sunxi_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
234{
235 struct sunxi_rtc_dev *chip = dev_get_drvdata(dev);
236 u32 date, time;
237
238 /*
239 * read again in case it changes
240 */
241 do {
242 date = readl(chip->base + SUNXI_RTC_YMD);
243 time = readl(chip->base + SUNXI_RTC_HMS);
244 } while ((date != readl(chip->base + SUNXI_RTC_YMD)) ||
245 (time != readl(chip->base + SUNXI_RTC_HMS)));
246
247 rtc_tm->tm_sec = SUNXI_TIME_GET_SEC_VALUE(time);
248 rtc_tm->tm_min = SUNXI_TIME_GET_MIN_VALUE(time);
249 rtc_tm->tm_hour = SUNXI_TIME_GET_HOUR_VALUE(time);
250
251 rtc_tm->tm_mday = SUNXI_DATE_GET_DAY_VALUE(date);
252 rtc_tm->tm_mon = SUNXI_DATE_GET_MON_VALUE(date);
253 rtc_tm->tm_year = SUNXI_DATE_GET_YEAR_VALUE(date,
254 chip->data_year->mask);
255
256 rtc_tm->tm_mon -= 1;
257
258 /*
259 * switch from (data_year->min)-relative offset to
260 * a (1900)-relative one
261 */
262 rtc_tm->tm_year += SUNXI_YEAR_OFF(chip->data_year);
263
264 return rtc_valid_tm(rtc_tm);
265}
266
267static int sunxi_rtc_setalarm(struct device *dev, struct rtc_wkalrm *wkalrm)
268{
269 struct sunxi_rtc_dev *chip = dev_get_drvdata(dev);
270 struct rtc_time *alrm_tm = &wkalrm->time;
271 struct rtc_time tm_now;
272 u32 alrm = 0;
273 unsigned long time_now = 0;
274 unsigned long time_set = 0;
275 unsigned long time_gap = 0;
276 unsigned long time_gap_day = 0;
277 unsigned long time_gap_hour = 0;
278 unsigned long time_gap_min = 0;
279 int ret = 0;
280
281 ret = sunxi_rtc_gettime(dev, &tm_now);
282 if (ret < 0) {
283 dev_err(dev, "Error in getting time\n");
284 return -EINVAL;
285 }
286
287 rtc_tm_to_time(alrm_tm, &time_set);
288 rtc_tm_to_time(&tm_now, &time_now);
289 if (time_set <= time_now) {
290 dev_err(dev, "Date to set in the past\n");
291 return -EINVAL;
292 }
293
294 time_gap = time_set - time_now;
295 time_gap_day = time_gap / SEC_IN_DAY;
296 time_gap -= time_gap_day * SEC_IN_DAY;
297 time_gap_hour = time_gap / SEC_IN_HOUR;
298 time_gap -= time_gap_hour * SEC_IN_HOUR;
299 time_gap_min = time_gap / SEC_IN_MIN;
300 time_gap -= time_gap_min * SEC_IN_MIN;
301
302 if (time_gap_day > 255) {
303 dev_err(dev, "Day must be in the range 0 - 255\n");
304 return -EINVAL;
305 }
306
307 sunxi_rtc_setaie(0, chip);
308 writel(0, chip->base + SUNXI_ALRM_DHMS);
309 usleep_range(100, 300);
310
311 alrm = SUNXI_ALRM_SET_SEC_VALUE(time_gap) |
312 SUNXI_ALRM_SET_MIN_VALUE(time_gap_min) |
313 SUNXI_ALRM_SET_HOUR_VALUE(time_gap_hour) |
314 SUNXI_ALRM_SET_DAY_VALUE(time_gap_day);
315 writel(alrm, chip->base + SUNXI_ALRM_DHMS);
316
317 writel(0, chip->base + SUNXI_ALRM_IRQ_EN);
318 writel(SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN, chip->base + SUNXI_ALRM_IRQ_EN);
319
320 sunxi_rtc_setaie(wkalrm->enabled, chip);
321
322 return 0;
323}
324
325static int sunxi_rtc_wait(struct sunxi_rtc_dev *chip, int offset,
326 unsigned int mask, unsigned int ms_timeout)
327{
328 const unsigned long timeout = jiffies + msecs_to_jiffies(ms_timeout);
329 u32 reg;
330
331 do {
332 reg = readl(chip->base + offset);
333 reg &= mask;
334
335 if (reg == mask)
336 return 0;
337
338 } while (time_before(jiffies, timeout));
339
340 return -ETIMEDOUT;
341}
342
343static int sunxi_rtc_settime(struct device *dev, struct rtc_time *rtc_tm)
344{
345 struct sunxi_rtc_dev *chip = dev_get_drvdata(dev);
346 u32 date = 0;
347 u32 time = 0;
348 int year;
349
350 /*
351 * the input rtc_tm->tm_year is the offset relative to 1900. We use
352 * the SUNXI_YEAR_OFF macro to rebase it with respect to the min year
353 * allowed by the hardware
354 */
355
356 year = rtc_tm->tm_year + 1900;
357 if (year < chip->data_year->min || year > chip->data_year->max) {
358 dev_err(dev, "rtc only supports year in range %d - %d\n",
359 chip->data_year->min, chip->data_year->max);
360 return -EINVAL;
361 }
362
363 rtc_tm->tm_year -= SUNXI_YEAR_OFF(chip->data_year);
364 rtc_tm->tm_mon += 1;
365
366 date = SUNXI_DATE_SET_DAY_VALUE(rtc_tm->tm_mday) |
367 SUNXI_DATE_SET_MON_VALUE(rtc_tm->tm_mon) |
368 SUNXI_DATE_SET_YEAR_VALUE(rtc_tm->tm_year,
369 chip->data_year->mask);
370
371 if (is_leap_year(year))
372 date |= SUNXI_LEAP_SET_VALUE(1, chip->data_year->leap_shift);
373
374 time = SUNXI_TIME_SET_SEC_VALUE(rtc_tm->tm_sec) |
375 SUNXI_TIME_SET_MIN_VALUE(rtc_tm->tm_min) |
376 SUNXI_TIME_SET_HOUR_VALUE(rtc_tm->tm_hour);
377
378 writel(0, chip->base + SUNXI_RTC_HMS);
379 writel(0, chip->base + SUNXI_RTC_YMD);
380
381 writel(time, chip->base + SUNXI_RTC_HMS);
382
383 /*
384 * After writing the RTC HH-MM-SS register, the
385 * SUNXI_LOSC_CTRL_RTC_HMS_ACC bit is set and it will not
386 * be cleared until the real writing operation is finished
387 */
388
389 if (sunxi_rtc_wait(chip, SUNXI_LOSC_CTRL,
390 SUNXI_LOSC_CTRL_RTC_HMS_ACC, 50)) {
391 dev_err(dev, "Failed to set rtc time.\n");
392 return -1;
393 }
394
395 writel(date, chip->base + SUNXI_RTC_YMD);
396
397 /*
398 * After writing the RTC YY-MM-DD register, the
399 * SUNXI_LOSC_CTRL_RTC_YMD_ACC bit is set and it will not
400 * be cleared until the real writing operation is finished
401 */
402
403 if (sunxi_rtc_wait(chip, SUNXI_LOSC_CTRL,
404 SUNXI_LOSC_CTRL_RTC_YMD_ACC, 50)) {
405 dev_err(dev, "Failed to set rtc time.\n");
406 return -1;
407 }
408
409 return 0;
410}
411
412static int sunxi_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
413{
414 struct sunxi_rtc_dev *chip = dev_get_drvdata(dev);
415
416 if (!enabled)
417 sunxi_rtc_setaie(enabled, chip);
418
419 return 0;
420}
421
422static const struct rtc_class_ops sunxi_rtc_ops = {
423 .read_time = sunxi_rtc_gettime,
424 .set_time = sunxi_rtc_settime,
425 .read_alarm = sunxi_rtc_getalarm,
426 .set_alarm = sunxi_rtc_setalarm,
427 .alarm_irq_enable = sunxi_rtc_alarm_irq_enable
428};
429
430static const struct of_device_id sunxi_rtc_dt_ids[] = {
431 { .compatible = "allwinner,sun4i-rtc", .data = &data_year_param[0] },
432 { .compatible = "allwinner,sun7i-a20-rtc", .data = &data_year_param[1] },
433 { /* sentinel */ },
434};
435MODULE_DEVICE_TABLE(of, sunxi_rtc_dt_ids);
436
437static int sunxi_rtc_probe(struct platform_device *pdev)
438{
439 struct sunxi_rtc_dev *chip;
440 struct resource *res;
441 const struct of_device_id *of_id;
442 int ret;
443
444 chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
445 if (!chip)
446 return -ENOMEM;
447
448 platform_set_drvdata(pdev, chip);
449 chip->dev = &pdev->dev;
450
451 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
452 chip->base = devm_ioremap_resource(&pdev->dev, res);
453 if (IS_ERR(chip->base))
454 return PTR_ERR(chip->base);
455
456 chip->irq = platform_get_irq(pdev, 0);
457 if (chip->irq < 0) {
458 dev_err(&pdev->dev, "No IRQ resource\n");
459 return chip->irq;
460 }
461 ret = devm_request_irq(&pdev->dev, chip->irq, sunxi_rtc_alarmirq,
462 0, dev_name(&pdev->dev), chip);
463 if (ret) {
464 dev_err(&pdev->dev, "Could not request IRQ\n");
465 return ret;
466 }
467
468 of_id = of_match_device(sunxi_rtc_dt_ids, &pdev->dev);
469 if (!of_id) {
470 dev_err(&pdev->dev, "Unable to setup RTC data\n");
471 return -ENODEV;
472 }
473 chip->data_year = (struct sunxi_rtc_data_year *) of_id->data;
474
475 /* clear the alarm count value */
476 writel(0, chip->base + SUNXI_ALRM_DHMS);
477
478 /* disable alarm, not generate irq pending */
479 writel(0, chip->base + SUNXI_ALRM_EN);
480
481 /* disable alarm week/cnt irq, unset to cpu */
482 writel(0, chip->base + SUNXI_ALRM_IRQ_EN);
483
484 /* clear alarm week/cnt irq pending */
485 writel(SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND, chip->base +
486 SUNXI_ALRM_IRQ_STA);
487
488 chip->rtc = rtc_device_register("rtc-sunxi", &pdev->dev,
489 &sunxi_rtc_ops, THIS_MODULE);
490 if (IS_ERR(chip->rtc)) {
491 dev_err(&pdev->dev, "unable to register device\n");
492 return PTR_ERR(chip->rtc);
493 }
494
495 dev_info(&pdev->dev, "RTC enabled\n");
496
497 return 0;
498}
499
500static int sunxi_rtc_remove(struct platform_device *pdev)
501{
502 struct sunxi_rtc_dev *chip = platform_get_drvdata(pdev);
503
504 rtc_device_unregister(chip->rtc);
505
506 return 0;
507}
508
509static struct platform_driver sunxi_rtc_driver = {
510 .probe = sunxi_rtc_probe,
511 .remove = sunxi_rtc_remove,
512 .driver = {
513 .name = "sunxi-rtc",
514 .owner = THIS_MODULE,
515 .of_match_table = sunxi_rtc_dt_ids,
516 },
517};
518
519module_platform_driver(sunxi_rtc_driver);
520
521MODULE_DESCRIPTION("sunxi RTC driver");
522MODULE_AUTHOR("Carlo Caione <carlo.caione@gmail.com>");
523MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 441ada489874..a3815eaed421 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1034,7 +1034,7 @@ config SERIAL_MSM_CONSOLE
1034 1034
1035config SERIAL_MSM_HS 1035config SERIAL_MSM_HS
1036 tristate "MSM UART High Speed: Serial Driver" 1036 tristate "MSM UART High Speed: Serial Driver"
1037 depends on ARCH_MSM 1037 depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
1038 select SERIAL_CORE 1038 select SERIAL_CORE
1039 help 1039 help
1040 If you have a machine based on MSM family of SoCs, you 1040 If you have a machine based on MSM family of SoCs, you
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index e4bf0e435af6..be33d2b0613b 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -39,6 +39,7 @@
39#include <linux/module.h> 39#include <linux/module.h>
40#include <linux/mm.h> 40#include <linux/mm.h>
41#include <linux/notifier.h> 41#include <linux/notifier.h>
42#include <linux/of.h>
42#include <linux/platform_device.h> 43#include <linux/platform_device.h>
43#include <linux/pm_runtime.h> 44#include <linux/pm_runtime.h>
44#include <linux/scatterlist.h> 45#include <linux/scatterlist.h>
@@ -58,6 +59,23 @@
58 59
59#include "sh-sci.h" 60#include "sh-sci.h"
60 61
62/* Offsets into the sci_port->irqs array */
63enum {
64 SCIx_ERI_IRQ,
65 SCIx_RXI_IRQ,
66 SCIx_TXI_IRQ,
67 SCIx_BRI_IRQ,
68 SCIx_NR_IRQS,
69
70 SCIx_MUX_IRQ = SCIx_NR_IRQS, /* special case */
71};
72
73#define SCIx_IRQ_IS_MUXED(port) \
74 ((port)->irqs[SCIx_ERI_IRQ] == \
75 (port)->irqs[SCIx_RXI_IRQ]) || \
76 ((port)->irqs[SCIx_ERI_IRQ] && \
77 ((port)->irqs[SCIx_RXI_IRQ] < 0))
78
61struct sci_port { 79struct sci_port {
62 struct uart_port port; 80 struct uart_port port;
63 81
@@ -1757,17 +1775,6 @@ static unsigned int sci_scbrr_calc(struct sci_port *s, unsigned int bps,
1757 if (s->sampling_rate) 1775 if (s->sampling_rate)
1758 return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1; 1776 return DIV_ROUND_CLOSEST(freq, s->sampling_rate * bps) - 1;
1759 1777
1760 switch (s->cfg->scbrr_algo_id) {
1761 case SCBRR_ALGO_1:
1762 return freq / (16 * bps);
1763 case SCBRR_ALGO_2:
1764 return DIV_ROUND_CLOSEST(freq, 32 * bps) - 1;
1765 case SCBRR_ALGO_3:
1766 return freq / (8 * bps);
1767 case SCBRR_ALGO_4:
1768 return DIV_ROUND_CLOSEST(freq, 16 * bps) - 1;
1769 }
1770
1771 /* Warn, but use a safe default */ 1778 /* Warn, but use a safe default */
1772 WARN_ON(1); 1779 WARN_ON(1);
1773 1780
@@ -2105,36 +2112,27 @@ static int sci_init_single(struct platform_device *dev,
2105 port->iotype = UPIO_MEM; 2112 port->iotype = UPIO_MEM;
2106 port->line = index; 2113 port->line = index;
2107 2114
2108 if (dev->num_resources) { 2115 res = platform_get_resource(dev, IORESOURCE_MEM, 0);
2109 /* Device has resources, use them. */ 2116 if (res == NULL)
2110 res = platform_get_resource(dev, IORESOURCE_MEM, 0); 2117 return -ENOMEM;
2111 if (res == NULL)
2112 return -ENOMEM;
2113 2118
2114 port->mapbase = res->start; 2119 port->mapbase = res->start;
2115 2120
2116 for (i = 0; i < ARRAY_SIZE(sci_port->irqs); ++i) 2121 for (i = 0; i < ARRAY_SIZE(sci_port->irqs); ++i)
2117 sci_port->irqs[i] = platform_get_irq(dev, i); 2122 sci_port->irqs[i] = platform_get_irq(dev, i);
2118 2123
2119 /* The SCI generates several interrupts. They can be muxed 2124 /* The SCI generates several interrupts. They can be muxed together or
2120 * together or connected to different interrupt lines. In the 2125 * connected to different interrupt lines. In the muxed case only one
2121 * muxed case only one interrupt resource is specified. In the 2126 * interrupt resource is specified. In the non-muxed case three or four
2122 * non-muxed case three or four interrupt resources are 2127 * interrupt resources are specified, as the BRI interrupt is optional.
2123 * specified, as the BRI interrupt is optional. 2128 */
2124 */ 2129 if (sci_port->irqs[0] < 0)
2125 if (sci_port->irqs[0] < 0) 2130 return -ENXIO;
2126 return -ENXIO;
2127 2131
2128 if (sci_port->irqs[1] < 0) { 2132 if (sci_port->irqs[1] < 0) {
2129 sci_port->irqs[1] = sci_port->irqs[0]; 2133 sci_port->irqs[1] = sci_port->irqs[0];
2130 sci_port->irqs[2] = sci_port->irqs[0]; 2134 sci_port->irqs[2] = sci_port->irqs[0];
2131 sci_port->irqs[3] = sci_port->irqs[0]; 2135 sci_port->irqs[3] = sci_port->irqs[0];
2132 }
2133 } else {
2134 /* No resources, use old-style platform data. */
2135 port->mapbase = p->mapbase;
2136 for (i = 0; i < ARRAY_SIZE(sci_port->irqs); ++i)
2137 sci_port->irqs[i] = p->irqs[i] ? p->irqs[i] : -ENXIO;
2138 } 2136 }
2139 2137
2140 if (p->regtype == SCIx_PROBE_REGTYPE) { 2138 if (p->regtype == SCIx_PROBE_REGTYPE) {
@@ -2176,17 +2174,12 @@ static int sci_init_single(struct platform_device *dev,
2176 break; 2174 break;
2177 } 2175 }
2178 2176
2179 /* Set the sampling rate if the baud rate calculation algorithm isn't 2177 /* SCIFA on sh7723 and sh7724 need a custom sampling rate that doesn't
2180 * specified. 2178 * match the SoC datasheet, this should be investigated. Let platform
2179 * data override the sampling rate for now.
2181 */ 2180 */
2182 if (p->scbrr_algo_id == SCBRR_ALGO_NONE) { 2181 sci_port->sampling_rate = p->sampling_rate ? p->sampling_rate
2183 /* SCIFA on sh7723 and sh7724 need a custom sampling rate that 2182 : sampling_rate;
2184 * doesn't match the SoC datasheet, this should be investigated.
2185 * Let platform data override the sampling rate for now.
2186 */
2187 sci_port->sampling_rate = p->sampling_rate ? p->sampling_rate
2188 : sampling_rate;
2189 }
2190 2183
2191 if (!early) { 2184 if (!early) {
2192 sci_port->iclk = clk_get(&dev->dev, "sci_ick"); 2185 sci_port->iclk = clk_get(&dev->dev, "sci_ick");
@@ -2423,6 +2416,83 @@ static int sci_remove(struct platform_device *dev)
2423 return 0; 2416 return 0;
2424} 2417}
2425 2418
2419struct sci_port_info {
2420 unsigned int type;
2421 unsigned int regtype;
2422};
2423
2424static const struct of_device_id of_sci_match[] = {
2425 {
2426 .compatible = "renesas,scif",
2427 .data = (void *)&(const struct sci_port_info) {
2428 .type = PORT_SCIF,
2429 .regtype = SCIx_SH4_SCIF_REGTYPE,
2430 },
2431 }, {
2432 .compatible = "renesas,scifa",
2433 .data = (void *)&(const struct sci_port_info) {
2434 .type = PORT_SCIFA,
2435 .regtype = SCIx_SCIFA_REGTYPE,
2436 },
2437 }, {
2438 .compatible = "renesas,scifb",
2439 .data = (void *)&(const struct sci_port_info) {
2440 .type = PORT_SCIFB,
2441 .regtype = SCIx_SCIFB_REGTYPE,
2442 },
2443 }, {
2444 .compatible = "renesas,hscif",
2445 .data = (void *)&(const struct sci_port_info) {
2446 .type = PORT_HSCIF,
2447 .regtype = SCIx_HSCIF_REGTYPE,
2448 },
2449 }, {
2450 /* Terminator */
2451 },
2452};
2453MODULE_DEVICE_TABLE(of, of_sci_match);
2454
2455static struct plat_sci_port *
2456sci_parse_dt(struct platform_device *pdev, unsigned int *dev_id)
2457{
2458 struct device_node *np = pdev->dev.of_node;
2459 const struct of_device_id *match;
2460 const struct sci_port_info *info;
2461 struct plat_sci_port *p;
2462 int id;
2463
2464 if (!IS_ENABLED(CONFIG_OF) || !np)
2465 return NULL;
2466
2467 match = of_match_node(of_sci_match, pdev->dev.of_node);
2468 if (!match)
2469 return NULL;
2470
2471 info = match->data;
2472
2473 p = devm_kzalloc(&pdev->dev, sizeof(struct plat_sci_port), GFP_KERNEL);
2474 if (!p) {
2475 dev_err(&pdev->dev, "failed to allocate DT config data\n");
2476 return NULL;
2477 }
2478
2479 /* Get the line number for the aliases node. */
2480 id = of_alias_get_id(np, "serial");
2481 if (id < 0) {
2482 dev_err(&pdev->dev, "failed to get alias id (%d)\n", id);
2483 return NULL;
2484 }
2485
2486 *dev_id = id;
2487
2488 p->flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
2489 p->type = info->type;
2490 p->regtype = info->regtype;
2491 p->scscr = SCSCR_RE | SCSCR_TE;
2492
2493 return p;
2494}
2495
2426static int sci_probe_single(struct platform_device *dev, 2496static int sci_probe_single(struct platform_device *dev,
2427 unsigned int index, 2497 unsigned int index,
2428 struct plat_sci_port *p, 2498 struct plat_sci_port *p,
@@ -2455,8 +2525,9 @@ static int sci_probe_single(struct platform_device *dev,
2455 2525
2456static int sci_probe(struct platform_device *dev) 2526static int sci_probe(struct platform_device *dev)
2457{ 2527{
2458 struct plat_sci_port *p = dev_get_platdata(&dev->dev); 2528 struct plat_sci_port *p;
2459 struct sci_port *sp = &sci_ports[dev->id]; 2529 struct sci_port *sp;
2530 unsigned int dev_id;
2460 int ret; 2531 int ret;
2461 2532
2462 /* 2533 /*
@@ -2467,9 +2538,24 @@ static int sci_probe(struct platform_device *dev)
2467 if (is_early_platform_device(dev)) 2538 if (is_early_platform_device(dev))
2468 return sci_probe_earlyprintk(dev); 2539 return sci_probe_earlyprintk(dev);
2469 2540
2541 if (dev->dev.of_node) {
2542 p = sci_parse_dt(dev, &dev_id);
2543 if (p == NULL)
2544 return -EINVAL;
2545 } else {
2546 p = dev->dev.platform_data;
2547 if (p == NULL) {
2548 dev_err(&dev->dev, "no platform data supplied\n");
2549 return -EINVAL;
2550 }
2551
2552 dev_id = dev->id;
2553 }
2554
2555 sp = &sci_ports[dev_id];
2470 platform_set_drvdata(dev, sp); 2556 platform_set_drvdata(dev, sp);
2471 2557
2472 ret = sci_probe_single(dev, dev->id, p, sp); 2558 ret = sci_probe_single(dev, dev_id, p, sp);
2473 if (ret) 2559 if (ret)
2474 return ret; 2560 return ret;
2475 2561
@@ -2521,6 +2607,7 @@ static struct platform_driver sci_driver = {
2521 .name = "sh-sci", 2607 .name = "sh-sci",
2522 .owner = THIS_MODULE, 2608 .owner = THIS_MODULE,
2523 .pm = &sci_dev_pm_ops, 2609 .pm = &sci_dev_pm_ops,
2610 .of_match_table = of_match_ptr(of_sci_match),
2524 }, 2611 },
2525}; 2612};
2526 2613
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index c6c325e4d80d..110b4b9ebeaa 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -94,7 +94,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
94 int i = 0; 94 int i = 0;
95 95
96 if (r8a66597->pdata->on_chip) { 96 if (r8a66597->pdata->on_chip) {
97 clk_enable(r8a66597->clk); 97 clk_prepare_enable(r8a66597->clk);
98 do { 98 do {
99 r8a66597_write(r8a66597, SCKE, SYSCFG0); 99 r8a66597_write(r8a66597, SCKE, SYSCFG0);
100 tmp = r8a66597_read(r8a66597, SYSCFG0); 100 tmp = r8a66597_read(r8a66597, SYSCFG0);
@@ -138,7 +138,7 @@ static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
138 udelay(1); 138 udelay(1);
139 139
140 if (r8a66597->pdata->on_chip) { 140 if (r8a66597->pdata->on_chip) {
141 clk_disable(r8a66597->clk); 141 clk_disable_unprepare(r8a66597->clk);
142 } else { 142 } else {
143 r8a66597_bclr(r8a66597, PLLC, SYSCFG0); 143 r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
144 r8a66597_bclr(r8a66597, XCKE, SYSCFG0); 144 r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 37752832b770..8546c8dccd51 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -40,8 +40,6 @@
40#include <linux/usb/msm_hsusb_hw.h> 40#include <linux/usb/msm_hsusb_hw.h>
41#include <linux/regulator/consumer.h> 41#include <linux/regulator/consumer.h>
42 42
43#include <mach/clk.h>
44
45#define MSM_USB_BASE (motg->regs) 43#define MSM_USB_BASE (motg->regs)
46#define DRIVER_NAME "msm_otg" 44#define DRIVER_NAME "msm_otg"
47 45
@@ -308,33 +306,30 @@ static void ulpi_init(struct msm_otg *motg)
308 306
309static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert) 307static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
310{ 308{
311 int ret; 309 int ret = 0;
310
311 if (!motg->pdata->link_clk_reset)
312 return ret;
313
314 ret = motg->pdata->link_clk_reset(motg->clk, assert);
315 if (ret)
316 dev_err(motg->phy.dev, "usb link clk reset %s failed\n",
317 assert ? "assert" : "deassert");
312 318
313 if (assert) {
314 ret = clk_reset(motg->clk, CLK_RESET_ASSERT);
315 if (ret)
316 dev_err(motg->phy.dev, "usb hs_clk assert failed\n");
317 } else {
318 ret = clk_reset(motg->clk, CLK_RESET_DEASSERT);
319 if (ret)
320 dev_err(motg->phy.dev, "usb hs_clk deassert failed\n");
321 }
322 return ret; 319 return ret;
323} 320}
324 321
325static int msm_otg_phy_clk_reset(struct msm_otg *motg) 322static int msm_otg_phy_clk_reset(struct msm_otg *motg)
326{ 323{
327 int ret; 324 int ret = 0;
328 325
329 ret = clk_reset(motg->phy_reset_clk, CLK_RESET_ASSERT); 326 if (!motg->pdata->phy_clk_reset)
330 if (ret) {
331 dev_err(motg->phy.dev, "usb phy clk assert failed\n");
332 return ret; 327 return ret;
333 } 328
334 usleep_range(10000, 12000); 329 ret = motg->pdata->phy_clk_reset(motg->phy_reset_clk);
335 ret = clk_reset(motg->phy_reset_clk, CLK_RESET_DEASSERT);
336 if (ret) 330 if (ret)
337 dev_err(motg->phy.dev, "usb phy clk deassert failed\n"); 331 dev_err(motg->phy.dev, "usb phy clk reset failed\n");
332
338 return ret; 333 return ret;
339} 334}
340 335
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index dd625cca1ae5..12591f6596ef 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -247,7 +247,7 @@ MODULE_DEVICE_TABLE(of, davinci_wdt_of_match);
247 247
248static struct platform_driver platform_wdt_driver = { 248static struct platform_driver platform_wdt_driver = {
249 .driver = { 249 .driver = {
250 .name = "watchdog", 250 .name = "davinci-wdt",
251 .owner = THIS_MODULE, 251 .owner = THIS_MODULE,
252 .of_match_table = davinci_wdt_of_match, 252 .of_match_table = davinci_wdt_of_match,
253 }, 253 },
@@ -267,4 +267,4 @@ MODULE_PARM_DESC(heartbeat,
267 __MODULE_STRING(DEFAULT_HEARTBEAT)); 267 __MODULE_STRING(DEFAULT_HEARTBEAT));
268 268
269MODULE_LICENSE("GPL"); 269MODULE_LICENSE("GPL");
270MODULE_ALIAS("platform:watchdog"); 270MODULE_ALIAS("platform:davinci-wdt");
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-03 22:03:55 -0500