aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 22:03:16 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 22:03:16 -0500
commit3a43aaa31790c36b69ebf8a6396f37fade86b531 (patch)
tree7c7f8da6219d546f2b44534cb7be1fb5591d6ac4 /drivers
parentaed886ce777590eac87f7ce2897d9f8357754331 (diff)
parent6a5a0b9139b19dd1a107870269a35bc9cf18d2dc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (137 commits) sh: include empty zero page in romImage sh: Make associative cache writes fatal on all SH-4A parts. sh: Drop associative writes for SH-4 cache flushes. sh: Partial revert of copy/clear_user_highpage() optimizations. sh: Add default uImage rule for se7724, ap325rxa, and migor. sh: allow runtime pm without suspend/resume callbacks sh: mach-ecovec24: Remove un-defined settings for VPU sh: mach-ecovec24: LCDC drive ability become high sh: fix sh7724 VEU3F resource size serial: sh-sci: Fix too early port disabling. sh: pfc: pr_info() -> pr_debug() cleanups. sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines. sh: Improve kfr2r09 serial port setup code sh: Break out SuperH PFC code sh: Move KEYSC header file sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file sh: Add CPG save/restore code for sh7724 R-standby sh: Add SDHI power control support to Ecovec mfd: Add power control platform data to SDHI driver sh: mach-ecovec24: modify address map ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/cdrom/gdrom.c10
-rw-r--r--drivers/input/keyboard/sh_keysc.c2
-rw-r--r--drivers/mfd/Kconfig8
-rw-r--r--drivers/mfd/Makefile1
-rw-r--r--drivers/mfd/sh_mobile_sdhi.c156
-rw-r--r--drivers/mmc/host/Kconfig2
-rw-r--r--drivers/rtc/rtc-ds1302.c2
-rw-r--r--drivers/serial/Kconfig2
-rw-r--r--drivers/serial/sh-sci.c59
-rw-r--r--drivers/serial/sh-sci.h2
-rw-r--r--drivers/sh/Makefile1
-rw-r--r--drivers/sh/intc.c123
-rw-r--r--drivers/sh/maple/maple.c4
-rw-r--r--drivers/sh/pfc.c577
-rw-r--r--drivers/video/sh_mobile_lcdcfb.c32
15 files changed, 892 insertions, 89 deletions
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index a762283d2a21..e789e6c9a422 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -214,7 +214,7 @@ static void gdrom_spicommand(void *spi_string, int buflen)
214 gdrom_getsense(NULL); 214 gdrom_getsense(NULL);
215 return; 215 return;
216 } 216 }
217 outsw(PHYSADDR(GDROM_DATA_REG), cmd, 6); 217 outsw(GDROM_DATA_REG, cmd, 6);
218} 218}
219 219
220 220
@@ -298,7 +298,7 @@ static int gdrom_readtoc_cmd(struct gdromtoc *toc, int session)
298 err = -EINVAL; 298 err = -EINVAL;
299 goto cleanup_readtoc; 299 goto cleanup_readtoc;
300 } 300 }
301 insw(PHYSADDR(GDROM_DATA_REG), toc, tocsize/2); 301 insw(GDROM_DATA_REG, toc, tocsize/2);
302 if (gd.status & 0x01) 302 if (gd.status & 0x01)
303 err = -EINVAL; 303 err = -EINVAL;
304 304
@@ -449,7 +449,7 @@ static int gdrom_getsense(short *bufstring)
449 GDROM_DEFAULT_TIMEOUT); 449 GDROM_DEFAULT_TIMEOUT);
450 if (gd.pending) 450 if (gd.pending)
451 goto cleanup_sense; 451 goto cleanup_sense;
452 insw(PHYSADDR(GDROM_DATA_REG), &sense, sense_command->buflen/2); 452 insw(GDROM_DATA_REG, &sense, sense_command->buflen/2);
453 if (sense[1] & 40) { 453 if (sense[1] & 40) {
454 printk(KERN_INFO "GDROM: Drive not ready - command aborted\n"); 454 printk(KERN_INFO "GDROM: Drive not ready - command aborted\n");
455 goto cleanup_sense; 455 goto cleanup_sense;
@@ -586,7 +586,7 @@ static void gdrom_readdisk_dma(struct work_struct *work)
586 spin_unlock(&gdrom_lock); 586 spin_unlock(&gdrom_lock);
587 block = blk_rq_pos(req)/GD_TO_BLK + GD_SESSION_OFFSET; 587 block = blk_rq_pos(req)/GD_TO_BLK + GD_SESSION_OFFSET;
588 block_cnt = blk_rq_sectors(req)/GD_TO_BLK; 588 block_cnt = blk_rq_sectors(req)/GD_TO_BLK;
589 ctrl_outl(PHYSADDR(req->buffer), GDROM_DMA_STARTADDR_REG); 589 ctrl_outl(virt_to_phys(req->buffer), GDROM_DMA_STARTADDR_REG);
590 ctrl_outl(block_cnt * GDROM_HARD_SECTOR, GDROM_DMA_LENGTH_REG); 590 ctrl_outl(block_cnt * GDROM_HARD_SECTOR, GDROM_DMA_LENGTH_REG);
591 ctrl_outl(1, GDROM_DMA_DIRECTION_REG); 591 ctrl_outl(1, GDROM_DMA_DIRECTION_REG);
592 ctrl_outl(1, GDROM_DMA_ENABLE_REG); 592 ctrl_outl(1, GDROM_DMA_ENABLE_REG);
@@ -615,7 +615,7 @@ static void gdrom_readdisk_dma(struct work_struct *work)
615 cpu_relax(); 615 cpu_relax();
616 gd.pending = 1; 616 gd.pending = 1;
617 gd.transfer = 1; 617 gd.transfer = 1;
618 outsw(PHYSADDR(GDROM_DATA_REG), &read_command->cmd, 6); 618 outsw(GDROM_DATA_REG, &read_command->cmd, 6);
619 timeout = jiffies + HZ / 2; 619 timeout = jiffies + HZ / 2;
620 /* Wait for any pending DMA to finish */ 620 /* Wait for any pending DMA to finish */
621 while (ctrl_inb(GDROM_DMA_STATUS_REG) && 621 while (ctrl_inb(GDROM_DMA_STATUS_REG) &&
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 887af79b7bff..076111fc72d2 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -18,9 +18,9 @@
18#include <linux/delay.h> 18#include <linux/delay.h>
19#include <linux/platform_device.h> 19#include <linux/platform_device.h>
20#include <linux/input.h> 20#include <linux/input.h>
21#include <linux/input/sh_keysc.h>
21#include <linux/clk.h> 22#include <linux/clk.h>
22#include <linux/io.h> 23#include <linux/io.h>
23#include <asm/sh_keysc.h>
24 24
25#define KYCR1_OFFS 0x00 25#define KYCR1_OFFS 0x00
26#define KYCR2_OFFS 0x04 26#define KYCR2_OFFS 0x04
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 08f2d07bf56a..a296e717e86e 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -35,6 +35,14 @@ config MFD_ASIC3
35 This driver supports the ASIC3 multifunction chip found on many 35 This driver supports the ASIC3 multifunction chip found on many
36 PDAs (mainly iPAQ and HTC based ones) 36 PDAs (mainly iPAQ and HTC based ones)
37 37
38config MFD_SH_MOBILE_SDHI
39 bool "Support for SuperH Mobile SDHI"
40 depends on SUPERH
41 select MFD_CORE
42 ---help---
43 This driver supports the SDHI hardware block found in many
44 SuperH Mobile SoCs.
45
38config MFD_DM355EVM_MSP 46config MFD_DM355EVM_MSP
39 bool "DaVinci DM355 EVM microcontroller" 47 bool "DaVinci DM355 EVM microcontroller"
40 depends on I2C && MACH_DAVINCI_DM355_EVM 48 depends on I2C && MACH_DAVINCI_DM355_EVM
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index af0fc903cec8..11350c1d9301 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -4,6 +4,7 @@
4 4
5obj-$(CONFIG_MFD_SM501) += sm501.o 5obj-$(CONFIG_MFD_SM501) += sm501.o
6obj-$(CONFIG_MFD_ASIC3) += asic3.o 6obj-$(CONFIG_MFD_ASIC3) += asic3.o
7obj-$(CONFIG_MFD_SH_MOBILE_SDHI) += sh_mobile_sdhi.o
7 8
8obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o 9obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o
9obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o 10obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o
diff --git a/drivers/mfd/sh_mobile_sdhi.c b/drivers/mfd/sh_mobile_sdhi.c
new file mode 100644
index 000000000000..03efae8041ab
--- /dev/null
+++ b/drivers/mfd/sh_mobile_sdhi.c
@@ -0,0 +1,156 @@
1/*
2 * SuperH Mobile SDHI
3 *
4 * Copyright (C) 2009 Magnus Damm
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 version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Based on "Compaq ASIC3 support":
11 *
12 * Copyright 2001 Compaq Computer Corporation.
13 * Copyright 2004-2005 Phil Blundell
14 * Copyright 2007-2008 OpenedHand Ltd.
15 *
16 * Authors: Phil Blundell <pb@handhelds.org>,
17 * Samuel Ortiz <sameo@openedhand.com>
18 *
19 */
20
21#include <linux/kernel.h>
22#include <linux/clk.h>
23#include <linux/platform_device.h>
24
25#include <linux/mfd/core.h>
26#include <linux/mfd/tmio.h>
27#include <linux/mfd/sh_mobile_sdhi.h>
28
29struct sh_mobile_sdhi {
30 struct clk *clk;
31 struct tmio_mmc_data mmc_data;
32 struct mfd_cell cell_mmc;
33};
34
35static struct resource sh_mobile_sdhi_resources[] = {
36 {
37 .start = 0x000,
38 .end = 0x1ff,
39 .flags = IORESOURCE_MEM,
40 },
41 {
42 .start = 0,
43 .end = 0,
44 .flags = IORESOURCE_IRQ,
45 },
46};
47
48static struct mfd_cell sh_mobile_sdhi_cell = {
49 .name = "tmio-mmc",
50 .num_resources = ARRAY_SIZE(sh_mobile_sdhi_resources),
51 .resources = sh_mobile_sdhi_resources,
52};
53
54static void sh_mobile_sdhi_set_pwr(struct platform_device *tmio, int state)
55{
56 struct platform_device *pdev = to_platform_device(tmio->dev.parent);
57 struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
58
59 if (p && p->set_pwr)
60 p->set_pwr(pdev, state);
61}
62
63static int __init sh_mobile_sdhi_probe(struct platform_device *pdev)
64{
65 struct sh_mobile_sdhi *priv;
66 struct resource *mem;
67 char clk_name[8];
68 int ret, irq;
69
70 mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
71 if (!mem)
72 dev_err(&pdev->dev, "missing MEM resource\n");
73
74 irq = platform_get_irq(pdev, 0);
75 if (irq < 0)
76 dev_err(&pdev->dev, "missing IRQ resource\n");
77
78 if (!mem || (irq < 0))
79 return -EINVAL;
80
81 priv = kzalloc(sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
82 if (priv == NULL) {
83 dev_err(&pdev->dev, "kzalloc failed\n");
84 return -ENOMEM;
85 }
86
87 snprintf(clk_name, sizeof(clk_name), "sdhi%d", pdev->id);
88 priv->clk = clk_get(&pdev->dev, clk_name);
89 if (IS_ERR(priv->clk)) {
90 dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
91 ret = PTR_ERR(priv->clk);
92 kfree(priv);
93 return ret;
94 }
95
96 clk_enable(priv->clk);
97
98 /* FIXME: silly const unsigned int hclk */
99 *(unsigned int *)&priv->mmc_data.hclk = clk_get_rate(priv->clk);
100 priv->mmc_data.set_pwr = sh_mobile_sdhi_set_pwr;
101
102 memcpy(&priv->cell_mmc, &sh_mobile_sdhi_cell, sizeof(priv->cell_mmc));
103 priv->cell_mmc.driver_data = &priv->mmc_data;
104 priv->cell_mmc.platform_data = &priv->cell_mmc;
105 priv->cell_mmc.data_size = sizeof(priv->cell_mmc);
106
107 platform_set_drvdata(pdev, priv);
108
109 ret = mfd_add_devices(&pdev->dev, pdev->id,
110 &priv->cell_mmc, 1, mem, irq);
111 if (ret) {
112 clk_disable(priv->clk);
113 clk_put(priv->clk);
114 kfree(priv);
115 }
116
117 return ret;
118}
119
120static int sh_mobile_sdhi_remove(struct platform_device *pdev)
121{
122 struct sh_mobile_sdhi *priv = platform_get_drvdata(pdev);
123
124 mfd_remove_devices(&pdev->dev);
125 clk_disable(priv->clk);
126 clk_put(priv->clk);
127 kfree(priv);
128
129 return 0;
130}
131
132static struct platform_driver sh_mobile_sdhi_driver = {
133 .driver = {
134 .name = "sh_mobile_sdhi",
135 .owner = THIS_MODULE,
136 },
137 .probe = sh_mobile_sdhi_probe,
138 .remove = __devexit_p(sh_mobile_sdhi_remove),
139};
140
141static int __init sh_mobile_sdhi_init(void)
142{
143 return platform_driver_register(&sh_mobile_sdhi_driver);
144}
145
146static void __exit sh_mobile_sdhi_exit(void)
147{
148 platform_driver_unregister(&sh_mobile_sdhi_driver);
149}
150
151module_init(sh_mobile_sdhi_init);
152module_exit(sh_mobile_sdhi_exit);
153
154MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
155MODULE_AUTHOR("Magnus Damm");
156MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 432ae8358c86..e04b751680d0 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -329,7 +329,7 @@ config MMC_SDRICOH_CS
329 329
330config MMC_TMIO 330config MMC_TMIO
331 tristate "Toshiba Mobile IO Controller (TMIO) MMC/SD function support" 331 tristate "Toshiba Mobile IO Controller (TMIO) MMC/SD function support"
332 depends on MFD_TMIO || MFD_ASIC3 332 depends on MFD_TMIO || MFD_ASIC3 || SUPERH
333 help 333 help
334 This provides support for the SD/MMC cell found in TC6393XB, 334 This provides support for the SD/MMC cell found in TC6393XB,
335 T7L66XB and also HTC ASIC3 335 T7L66XB and also HTC ASIC3
diff --git a/drivers/rtc/rtc-ds1302.c b/drivers/rtc/rtc-ds1302.c
index d490628b64da..1e73c8f42e38 100644
--- a/drivers/rtc/rtc-ds1302.c
+++ b/drivers/rtc/rtc-ds1302.c
@@ -201,7 +201,7 @@ static struct platform_driver ds1302_platform_driver = {
201 .name = DRV_NAME, 201 .name = DRV_NAME,
202 .owner = THIS_MODULE, 202 .owner = THIS_MODULE,
203 }, 203 },
204 .remove = __exit_p(ds1302_rtc_remove), 204 .remove = __devexit_p(ds1302_rtc_remove),
205}; 205};
206 206
207static int __init ds1302_rtc_init(void) 207static int __init ds1302_rtc_init(void)
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 50943ff78f4b..9ff47db0b2ce 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -996,7 +996,7 @@ config SERIAL_IP22_ZILOG_CONSOLE
996 996
997config SERIAL_SH_SCI 997config SERIAL_SH_SCI
998 tristate "SuperH SCI(F) serial port support" 998 tristate "SuperH SCI(F) serial port support"
999 depends on SUPERH || H8300 999 depends on HAVE_CLK && (SUPERH || H8300)
1000 select SERIAL_CORE 1000 select SERIAL_CORE
1001 1001
1002config SERIAL_SH_SCI_NR_UARTS 1002config SERIAL_SH_SCI_NR_UARTS
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 6498bd1fb6dd..ff38dbdb5c6e 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -50,7 +50,6 @@
50#include <linux/list.h> 50#include <linux/list.h>
51 51
52#ifdef CONFIG_SUPERH 52#ifdef CONFIG_SUPERH
53#include <asm/clock.h>
54#include <asm/sh_bios.h> 53#include <asm/sh_bios.h>
55#endif 54#endif
56 55
@@ -79,22 +78,18 @@ struct sci_port {
79 struct timer_list break_timer; 78 struct timer_list break_timer;
80 int break_flag; 79 int break_flag;
81 80
82#ifdef CONFIG_HAVE_CLK
83 /* Interface clock */ 81 /* Interface clock */
84 struct clk *iclk; 82 struct clk *iclk;
85 /* Data clock */ 83 /* Data clock */
86 struct clk *dclk; 84 struct clk *dclk;
87#endif 85
88 struct list_head node; 86 struct list_head node;
89}; 87};
90 88
91struct sh_sci_priv { 89struct sh_sci_priv {
92 spinlock_t lock; 90 spinlock_t lock;
93 struct list_head ports; 91 struct list_head ports;
94
95#ifdef CONFIG_HAVE_CLK
96 struct notifier_block clk_nb; 92 struct notifier_block clk_nb;
97#endif
98}; 93};
99 94
100/* Function prototypes */ 95/* Function prototypes */
@@ -156,32 +151,6 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c)
156} 151}
157#endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */ 152#endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */
158 153
159#if defined(__H8300S__)
160enum { sci_disable, sci_enable };
161
162static void h8300_sci_config(struct uart_port *port, unsigned int ctrl)
163{
164 volatile unsigned char *mstpcrl = (volatile unsigned char *)MSTPCRL;
165 int ch = (port->mapbase - SMR0) >> 3;
166 unsigned char mask = 1 << (ch+1);
167
168 if (ctrl == sci_disable)
169 *mstpcrl |= mask;
170 else
171 *mstpcrl &= ~mask;
172}
173
174static void h8300_sci_enable(struct uart_port *port)
175{
176 h8300_sci_config(port, sci_enable);
177}
178
179static void h8300_sci_disable(struct uart_port *port)
180{
181 h8300_sci_config(port, sci_disable);
182}
183#endif
184
185#if defined(__H8300H__) || defined(__H8300S__) 154#if defined(__H8300H__) || defined(__H8300S__)
186static void sci_init_pins(struct uart_port *port, unsigned int cflag) 155static void sci_init_pins(struct uart_port *port, unsigned int cflag)
187{ 156{
@@ -733,7 +702,6 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
733 return ret; 702 return ret;
734} 703}
735 704
736#ifdef CONFIG_HAVE_CLK
737/* 705/*
738 * Here we define a transistion notifier so that we can update all of our 706 * Here we define a transistion notifier so that we can update all of our
739 * ports' baud rate when the peripheral clock changes. 707 * ports' baud rate when the peripheral clock changes.
@@ -751,7 +719,6 @@ static int sci_notifier(struct notifier_block *self,
751 spin_lock_irqsave(&priv->lock, flags); 719 spin_lock_irqsave(&priv->lock, flags);
752 list_for_each_entry(sci_port, &priv->ports, node) 720 list_for_each_entry(sci_port, &priv->ports, node)
753 sci_port->port.uartclk = clk_get_rate(sci_port->dclk); 721 sci_port->port.uartclk = clk_get_rate(sci_port->dclk);
754
755 spin_unlock_irqrestore(&priv->lock, flags); 722 spin_unlock_irqrestore(&priv->lock, flags);
756 } 723 }
757 724
@@ -778,7 +745,6 @@ static void sci_clk_disable(struct uart_port *port)
778 745
779 clk_disable(sci_port->dclk); 746 clk_disable(sci_port->dclk);
780} 747}
781#endif
782 748
783static int sci_request_irq(struct sci_port *port) 749static int sci_request_irq(struct sci_port *port)
784{ 750{
@@ -833,8 +799,8 @@ static void sci_free_irq(struct sci_port *port)
833 799
834static unsigned int sci_tx_empty(struct uart_port *port) 800static unsigned int sci_tx_empty(struct uart_port *port)
835{ 801{
836 /* Can't detect */ 802 unsigned short status = sci_in(port, SCxSR);
837 return TIOCSER_TEMT; 803 return status & SCxSR_TEND(port) ? TIOCSER_TEMT : 0;
838} 804}
839 805
840static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl) 806static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl)
@@ -1077,21 +1043,10 @@ static void __devinit sci_init_single(struct platform_device *dev,
1077 sci_port->port.iotype = UPIO_MEM; 1043 sci_port->port.iotype = UPIO_MEM;
1078 sci_port->port.line = index; 1044 sci_port->port.line = index;
1079 sci_port->port.fifosize = 1; 1045 sci_port->port.fifosize = 1;
1080
1081#if defined(__H8300H__) || defined(__H8300S__)
1082#ifdef __H8300S__
1083 sci_port->enable = h8300_sci_enable;
1084 sci_port->disable = h8300_sci_disable;
1085#endif
1086 sci_port->port.uartclk = CONFIG_CPU_CLOCK;
1087#elif defined(CONFIG_HAVE_CLK)
1088 sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL; 1046 sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL;
1089 sci_port->dclk = clk_get(&dev->dev, "peripheral_clk"); 1047 sci_port->dclk = clk_get(&dev->dev, "peripheral_clk");
1090 sci_port->enable = sci_clk_enable; 1048 sci_port->enable = sci_clk_enable;
1091 sci_port->disable = sci_clk_disable; 1049 sci_port->disable = sci_clk_disable;
1092#else
1093#error "Need a valid uartclk"
1094#endif
1095 1050
1096 sci_port->break_timer.data = (unsigned long)sci_port; 1051 sci_port->break_timer.data = (unsigned long)sci_port;
1097 sci_port->break_timer.function = sci_break_timer; 1052 sci_port->break_timer.function = sci_break_timer;
@@ -1106,7 +1061,6 @@ static void __devinit sci_init_single(struct platform_device *dev,
1106 sci_port->type = sci_port->port.type = p->type; 1061 sci_port->type = sci_port->port.type = p->type;
1107 1062
1108 memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs)); 1063 memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs));
1109
1110} 1064}
1111 1065
1112#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE 1066#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE
@@ -1239,14 +1193,11 @@ static int sci_remove(struct platform_device *dev)
1239 struct sci_port *p; 1193 struct sci_port *p;
1240 unsigned long flags; 1194 unsigned long flags;
1241 1195
1242#ifdef CONFIG_HAVE_CLK
1243 cpufreq_unregister_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER); 1196 cpufreq_unregister_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER);
1244#endif
1245 1197
1246 spin_lock_irqsave(&priv->lock, flags); 1198 spin_lock_irqsave(&priv->lock, flags);
1247 list_for_each_entry(p, &priv->ports, node) 1199 list_for_each_entry(p, &priv->ports, node)
1248 uart_remove_one_port(&sci_uart_driver, &p->port); 1200 uart_remove_one_port(&sci_uart_driver, &p->port);
1249
1250 spin_unlock_irqrestore(&priv->lock, flags); 1201 spin_unlock_irqrestore(&priv->lock, flags);
1251 1202
1252 kfree(priv); 1203 kfree(priv);
@@ -1307,10 +1258,8 @@ static int __devinit sci_probe(struct platform_device *dev)
1307 spin_lock_init(&priv->lock); 1258 spin_lock_init(&priv->lock);
1308 platform_set_drvdata(dev, priv); 1259 platform_set_drvdata(dev, priv);
1309 1260
1310#ifdef CONFIG_HAVE_CLK
1311 priv->clk_nb.notifier_call = sci_notifier; 1261 priv->clk_nb.notifier_call = sci_notifier;
1312 cpufreq_register_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER); 1262 cpufreq_register_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER);
1313#endif
1314 1263
1315 if (dev->id != -1) { 1264 if (dev->id != -1) {
1316 ret = sci_probe_single(dev, dev->id, p, &sci_ports[dev->id]); 1265 ret = sci_probe_single(dev, dev->id, p, &sci_ports[dev->id]);
@@ -1370,7 +1319,7 @@ static struct dev_pm_ops sci_dev_pm_ops = {
1370 1319
1371static struct platform_driver sci_driver = { 1320static struct platform_driver sci_driver = {
1372 .probe = sci_probe, 1321 .probe = sci_probe,
1373 .remove = __devexit_p(sci_remove), 1322 .remove = sci_remove,
1374 .driver = { 1323 .driver = {
1375 .name = "sh-sci", 1324 .name = "sh-sci",
1376 .owner = THIS_MODULE, 1325 .owner = THIS_MODULE,
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 3e2fcf93b42e..a32094eeb42b 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -1,5 +1,5 @@
1#include <linux/serial_core.h> 1#include <linux/serial_core.h>
2#include <asm/io.h> 2#include <linux/io.h>
3#include <linux/gpio.h> 3#include <linux/gpio.h>
4 4
5#if defined(CONFIG_H83007) || defined(CONFIG_H83068) 5#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile
index 6a025cefe6dc..4956bf1f2134 100644
--- a/drivers/sh/Makefile
+++ b/drivers/sh/Makefile
@@ -3,4 +3,5 @@
3# 3#
4obj-$(CONFIG_SUPERHYWAY) += superhyway/ 4obj-$(CONFIG_SUPERHYWAY) += superhyway/
5obj-$(CONFIG_MAPLE) += maple/ 5obj-$(CONFIG_MAPLE) += maple/
6obj-$(CONFIG_GENERIC_GPIO) += pfc.o
6obj-y += intc.o 7obj-y += intc.o
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 559b5fe9dc0f..a7e5c2e9986c 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -2,6 +2,7 @@
2 * Shared interrupt handling code for IPR and INTC2 types of IRQs. 2 * Shared interrupt handling code for IPR and INTC2 types of IRQs.
3 * 3 *
4 * Copyright (C) 2007, 2008 Magnus Damm 4 * Copyright (C) 2007, 2008 Magnus Damm
5 * Copyright (C) 2009 Paul Mundt
5 * 6 *
6 * Based on intc2.c and ipr.c 7 * Based on intc2.c and ipr.c
7 * 8 *
@@ -24,6 +25,7 @@
24#include <linux/sysdev.h> 25#include <linux/sysdev.h>
25#include <linux/list.h> 26#include <linux/list.h>
26#include <linux/topology.h> 27#include <linux/topology.h>
28#include <linux/bitmap.h>
27 29
28#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \ 30#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \
29 ((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \ 31 ((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \
@@ -59,6 +61,20 @@ struct intc_desc_int {
59 61
60static LIST_HEAD(intc_list); 62static LIST_HEAD(intc_list);
61 63
64/*
65 * The intc_irq_map provides a global map of bound IRQ vectors for a
66 * given platform. Allocation of IRQs are either static through the CPU
67 * vector map, or dynamic in the case of board mux vectors or MSI.
68 *
69 * As this is a central point for all IRQ controllers on the system,
70 * each of the available sources are mapped out here. This combined with
71 * sparseirq makes it quite trivial to keep the vector map tightly packed
72 * when dynamically creating IRQs, as well as tying in to otherwise
73 * unused irq_desc positions in the sparse array.
74 */
75static DECLARE_BITMAP(intc_irq_map, NR_IRQS);
76static DEFINE_SPINLOCK(vector_lock);
77
62#ifdef CONFIG_SMP 78#ifdef CONFIG_SMP
63#define IS_SMP(x) x.smp 79#define IS_SMP(x) x.smp
64#define INTC_REG(d, x, c) (d->reg[(x)] + ((d->smp[(x)] & 0xff) * c)) 80#define INTC_REG(d, x, c) (d->reg[(x)] + ((d->smp[(x)] & 0xff) * c))
@@ -70,9 +86,7 @@ static LIST_HEAD(intc_list);
70#endif 86#endif
71 87
72static unsigned int intc_prio_level[NR_IRQS]; /* for now */ 88static unsigned int intc_prio_level[NR_IRQS]; /* for now */
73#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
74static unsigned long ack_handle[NR_IRQS]; 89static unsigned long ack_handle[NR_IRQS];
75#endif
76 90
77static inline struct intc_desc_int *get_intc_desc(unsigned int irq) 91static inline struct intc_desc_int *get_intc_desc(unsigned int irq)
78{ 92{
@@ -250,7 +264,6 @@ static int intc_set_wake(unsigned int irq, unsigned int on)
250 return 0; /* allow wakeup, but setup hardware in intc_suspend() */ 264 return 0; /* allow wakeup, but setup hardware in intc_suspend() */
251} 265}
252 266
253#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
254static void intc_mask_ack(unsigned int irq) 267static void intc_mask_ack(unsigned int irq)
255{ 268{
256 struct intc_desc_int *d = get_intc_desc(irq); 269 struct intc_desc_int *d = get_intc_desc(irq);
@@ -282,7 +295,6 @@ static void intc_mask_ack(unsigned int irq)
282 } 295 }
283 } 296 }
284} 297}
285#endif
286 298
287static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp, 299static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp,
288 unsigned int nr_hp, 300 unsigned int nr_hp,
@@ -501,7 +513,6 @@ static unsigned int __init intc_prio_data(struct intc_desc *desc,
501 return 0; 513 return 0;
502} 514}
503 515
504#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
505static unsigned int __init intc_ack_data(struct intc_desc *desc, 516static unsigned int __init intc_ack_data(struct intc_desc *desc,
506 struct intc_desc_int *d, 517 struct intc_desc_int *d,
507 intc_enum enum_id) 518 intc_enum enum_id)
@@ -533,7 +544,6 @@ static unsigned int __init intc_ack_data(struct intc_desc *desc,
533 544
534 return 0; 545 return 0;
535} 546}
536#endif
537 547
538static unsigned int __init intc_sense_data(struct intc_desc *desc, 548static unsigned int __init intc_sense_data(struct intc_desc *desc,
539 struct intc_desc_int *d, 549 struct intc_desc_int *d,
@@ -572,6 +582,11 @@ static void __init intc_register_irq(struct intc_desc *desc,
572 struct intc_handle_int *hp; 582 struct intc_handle_int *hp;
573 unsigned int data[2], primary; 583 unsigned int data[2], primary;
574 584
585 /*
586 * Register the IRQ position with the global IRQ map
587 */
588 set_bit(irq, intc_irq_map);
589
575 /* Prefer single interrupt source bitmap over other combinations: 590 /* Prefer single interrupt source bitmap over other combinations:
576 * 1. bitmap, single interrupt source 591 * 1. bitmap, single interrupt source
577 * 2. priority, single interrupt source 592 * 2. priority, single interrupt source
@@ -641,10 +656,8 @@ static void __init intc_register_irq(struct intc_desc *desc,
641 /* irq should be disabled by default */ 656 /* irq should be disabled by default */
642 d->chip.mask(irq); 657 d->chip.mask(irq);
643 658
644#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
645 if (desc->ack_regs) 659 if (desc->ack_regs)
646 ack_handle[irq] = intc_ack_data(desc, d, enum_id); 660 ack_handle[irq] = intc_ack_data(desc, d, enum_id);
647#endif
648} 661}
649 662
650static unsigned int __init save_reg(struct intc_desc_int *d, 663static unsigned int __init save_reg(struct intc_desc_int *d,
@@ -681,10 +694,8 @@ void __init register_intc_controller(struct intc_desc *desc)
681 d->nr_reg = desc->mask_regs ? desc->nr_mask_regs * 2 : 0; 694 d->nr_reg = desc->mask_regs ? desc->nr_mask_regs * 2 : 0;
682 d->nr_reg += desc->prio_regs ? desc->nr_prio_regs * 2 : 0; 695 d->nr_reg += desc->prio_regs ? desc->nr_prio_regs * 2 : 0;
683 d->nr_reg += desc->sense_regs ? desc->nr_sense_regs : 0; 696 d->nr_reg += desc->sense_regs ? desc->nr_sense_regs : 0;
684
685#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
686 d->nr_reg += desc->ack_regs ? desc->nr_ack_regs : 0; 697 d->nr_reg += desc->ack_regs ? desc->nr_ack_regs : 0;
687#endif 698
688 d->reg = kzalloc(d->nr_reg * sizeof(*d->reg), GFP_NOWAIT); 699 d->reg = kzalloc(d->nr_reg * sizeof(*d->reg), GFP_NOWAIT);
689#ifdef CONFIG_SMP 700#ifdef CONFIG_SMP
690 d->smp = kzalloc(d->nr_reg * sizeof(*d->smp), GFP_NOWAIT); 701 d->smp = kzalloc(d->nr_reg * sizeof(*d->smp), GFP_NOWAIT);
@@ -727,14 +738,12 @@ void __init register_intc_controller(struct intc_desc *desc)
727 d->chip.set_type = intc_set_sense; 738 d->chip.set_type = intc_set_sense;
728 d->chip.set_wake = intc_set_wake; 739 d->chip.set_wake = intc_set_wake;
729 740
730#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
731 if (desc->ack_regs) { 741 if (desc->ack_regs) {
732 for (i = 0; i < desc->nr_ack_regs; i++) 742 for (i = 0; i < desc->nr_ack_regs; i++)
733 k += save_reg(d, k, desc->ack_regs[i].set_reg, 0); 743 k += save_reg(d, k, desc->ack_regs[i].set_reg, 0);
734 744
735 d->chip.mask_ack = intc_mask_ack; 745 d->chip.mask_ack = intc_mask_ack;
736 } 746 }
737#endif
738 747
739 BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */ 748 BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */
740 749
@@ -856,5 +865,91 @@ static int __init register_intc_sysdevs(void)
856 865
857 return error; 866 return error;
858} 867}
859
860device_initcall(register_intc_sysdevs); 868device_initcall(register_intc_sysdevs);
869
870/*
871 * Dynamic IRQ allocation and deallocation
872 */
873static unsigned int create_irq_on_node(unsigned int irq_want, int node)
874{
875 unsigned int irq = 0, new;
876 unsigned long flags;
877 struct irq_desc *desc;
878
879 spin_lock_irqsave(&vector_lock, flags);
880
881 /*
882 * First try the wanted IRQ, then scan.
883 */
884 if (test_and_set_bit(irq_want, intc_irq_map)) {
885 new = find_first_zero_bit(intc_irq_map, nr_irqs);
886 if (unlikely(new == nr_irqs))
887 goto out_unlock;
888
889 desc = irq_to_desc_alloc_node(new, node);
890 if (unlikely(!desc)) {
891 pr_info("can't get irq_desc for %d\n", new);
892 goto out_unlock;
893 }
894
895 desc = move_irq_desc(desc, node);
896 __set_bit(new, intc_irq_map);
897 irq = new;
898 }
899
900out_unlock:
901 spin_unlock_irqrestore(&vector_lock, flags);
902
903 if (irq > 0)
904 dynamic_irq_init(irq);
905
906 return irq;
907}
908
909int create_irq(void)
910{
911 int nid = cpu_to_node(smp_processor_id());
912 int irq;
913
914 irq = create_irq_on_node(NR_IRQS_LEGACY, nid);
915 if (irq == 0)
916 irq = -1;
917
918 return irq;
919}
920
921void destroy_irq(unsigned int irq)
922{
923 unsigned long flags;
924
925 dynamic_irq_cleanup(irq);
926
927 spin_lock_irqsave(&vector_lock, flags);
928 __clear_bit(irq, intc_irq_map);
929 spin_unlock_irqrestore(&vector_lock, flags);
930}
931
932int reserve_irq_vector(unsigned int irq)
933{
934 unsigned long flags;
935 int ret = 0;
936
937 spin_lock_irqsave(&vector_lock, flags);
938 if (test_and_set_bit(irq, intc_irq_map))
939 ret = -EBUSY;
940 spin_unlock_irqrestore(&vector_lock, flags);
941
942 return ret;
943}
944
945void reserve_irq_legacy(void)
946{
947 unsigned long flags;
948 int i, j;
949
950 spin_lock_irqsave(&vector_lock, flags);
951 j = find_first_bit(intc_irq_map, nr_irqs);
952 for (i = 0; i < j; i++)
953 __set_bit(i, intc_irq_map);
954 spin_unlock_irqrestore(&vector_lock, flags);
955}
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 93c20e135ee1..4e8f57d4131f 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -106,7 +106,7 @@ static void maple_dma_reset(void)
106 * max delay is 11 106 * max delay is 11
107 */ 107 */
108 ctrl_outl(MAPLE_2MBPS | MAPLE_TIMEOUT(0xFFFF), MAPLE_SPEED); 108 ctrl_outl(MAPLE_2MBPS | MAPLE_TIMEOUT(0xFFFF), MAPLE_SPEED);
109 ctrl_outl(PHYSADDR(maple_sendbuf), MAPLE_DMAADDR); 109 ctrl_outl(virt_to_phys(maple_sendbuf), MAPLE_DMAADDR);
110 ctrl_outl(1, MAPLE_ENABLE); 110 ctrl_outl(1, MAPLE_ENABLE);
111} 111}
112 112
@@ -258,7 +258,7 @@ static void maple_build_block(struct mapleq *mq)
258 maple_lastptr = maple_sendptr; 258 maple_lastptr = maple_sendptr;
259 259
260 *maple_sendptr++ = (port << 16) | len | 0x80000000; 260 *maple_sendptr++ = (port << 16) | len | 0x80000000;
261 *maple_sendptr++ = PHYSADDR(mq->recvbuf->buf); 261 *maple_sendptr++ = virt_to_phys(mq->recvbuf->buf);
262 *maple_sendptr++ = 262 *maple_sendptr++ =
263 mq->command | (to << 8) | (from << 16) | (len << 24); 263 mq->command | (to << 8) | (from << 16) | (len << 24);
264 while (len-- > 0) 264 while (len-- > 0)
diff --git a/drivers/sh/pfc.c b/drivers/sh/pfc.c
new file mode 100644
index 000000000000..841ed5030c8f
--- /dev/null
+++ b/drivers/sh/pfc.c
@@ -0,0 +1,577 @@
1/*
2 * Pinmuxed GPIO support for SuperH.
3 *
4 * Copyright (C) 2008 Magnus Damm
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10#include <linux/errno.h>
11#include <linux/kernel.h>
12#include <linux/list.h>
13#include <linux/module.h>
14#include <linux/clk.h>
15#include <linux/err.h>
16#include <linux/io.h>
17#include <linux/irq.h>
18#include <linux/bitops.h>
19#include <linux/gpio.h>
20
21static int enum_in_range(pinmux_enum_t enum_id, struct pinmux_range *r)
22{
23 if (enum_id < r->begin)
24 return 0;
25
26 if (enum_id > r->end)
27 return 0;
28
29 return 1;
30}
31
32static unsigned long gpio_read_raw_reg(unsigned long reg,
33 unsigned long reg_width)
34{
35 switch (reg_width) {
36 case 8:
37 return __raw_readb(reg);
38 case 16:
39 return __raw_readw(reg);
40 case 32:
41 return __raw_readl(reg);
42 }
43
44 BUG();
45 return 0;
46}
47
48static void gpio_write_raw_reg(unsigned long reg,
49 unsigned long reg_width,
50 unsigned long data)
51{
52 switch (reg_width) {
53 case 8:
54 __raw_writeb(data, reg);
55 return;
56 case 16:
57 __raw_writew(data, reg);
58 return;
59 case 32:
60 __raw_writel(data, reg);
61 return;
62 }
63
64 BUG();
65}
66
67static void gpio_write_bit(struct pinmux_data_reg *dr,
68 unsigned long in_pos, unsigned long value)
69{
70 unsigned long pos;
71
72 pos = dr->reg_width - (in_pos + 1);
73
74 pr_debug("write_bit addr = %lx, value = %ld, pos = %ld, "
75 "r_width = %ld\n",
76 dr->reg, !!value, pos, dr->reg_width);
77
78 if (value)
79 set_bit(pos, &dr->reg_shadow);
80 else
81 clear_bit(pos, &dr->reg_shadow);
82
83 gpio_write_raw_reg(dr->reg, dr->reg_width, dr->reg_shadow);
84}
85
86static int gpio_read_reg(unsigned long reg, unsigned long reg_width,
87 unsigned long field_width, unsigned long in_pos)
88{
89 unsigned long data, mask, pos;
90
91 data = 0;
92 mask = (1 << field_width) - 1;
93 pos = reg_width - ((in_pos + 1) * field_width);
94
95 pr_debug("read_reg: addr = %lx, pos = %ld, "
96 "r_width = %ld, f_width = %ld\n",
97 reg, pos, reg_width, field_width);
98
99 data = gpio_read_raw_reg(reg, reg_width);
100 return (data >> pos) & mask;
101}
102
103static void gpio_write_reg(unsigned long reg, unsigned long reg_width,
104 unsigned long field_width, unsigned long in_pos,
105 unsigned long value)
106{
107 unsigned long mask, pos;
108
109 mask = (1 << field_width) - 1;
110 pos = reg_width - ((in_pos + 1) * field_width);
111
112 pr_debug("write_reg addr = %lx, value = %ld, pos = %ld, "
113 "r_width = %ld, f_width = %ld\n",
114 reg, value, pos, reg_width, field_width);
115
116 mask = ~(mask << pos);
117 value = value << pos;
118
119 switch (reg_width) {
120 case 8:
121 __raw_writeb((__raw_readb(reg) & mask) | value, reg);
122 break;
123 case 16:
124 __raw_writew((__raw_readw(reg) & mask) | value, reg);
125 break;
126 case 32:
127 __raw_writel((__raw_readl(reg) & mask) | value, reg);
128 break;
129 }
130}
131
132static int setup_data_reg(struct pinmux_info *gpioc, unsigned gpio)
133{
134 struct pinmux_gpio *gpiop = &gpioc->gpios[gpio];
135 struct pinmux_data_reg *data_reg;
136 int k, n;
137
138 if (!enum_in_range(gpiop->enum_id, &gpioc->data))
139 return -1;
140
141 k = 0;
142 while (1) {
143 data_reg = gpioc->data_regs + k;
144
145 if (!data_reg->reg_width)
146 break;
147
148 for (n = 0; n < data_reg->reg_width; n++) {
149 if (data_reg->enum_ids[n] == gpiop->enum_id) {
150 gpiop->flags &= ~PINMUX_FLAG_DREG;
151 gpiop->flags |= (k << PINMUX_FLAG_DREG_SHIFT);
152 gpiop->flags &= ~PINMUX_FLAG_DBIT;
153 gpiop->flags |= (n << PINMUX_FLAG_DBIT_SHIFT);
154 return 0;
155 }
156 }
157 k++;
158 }
159
160 BUG();
161
162 return -1;
163}
164
165static void setup_data_regs(struct pinmux_info *gpioc)
166{
167 struct pinmux_data_reg *drp;
168 int k;
169
170 for (k = gpioc->first_gpio; k <= gpioc->last_gpio; k++)
171 setup_data_reg(gpioc, k);
172
173 k = 0;
174 while (1) {
175 drp = gpioc->data_regs + k;
176
177 if (!drp->reg_width)
178 break;
179
180 drp->reg_shadow = gpio_read_raw_reg(drp->reg, drp->reg_width);
181 k++;
182 }
183}
184
185static int get_data_reg(struct pinmux_info *gpioc, unsigned gpio,
186 struct pinmux_data_reg **drp, int *bitp)
187{
188 struct pinmux_gpio *gpiop = &gpioc->gpios[gpio];
189 int k, n;
190
191 if (!enum_in_range(gpiop->enum_id, &gpioc->data))
192 return -1;
193
194 k = (gpiop->flags & PINMUX_FLAG_DREG) >> PINMUX_FLAG_DREG_SHIFT;
195 n = (gpiop->flags & PINMUX_FLAG_DBIT) >> PINMUX_FLAG_DBIT_SHIFT;
196 *drp = gpioc->data_regs + k;
197 *bitp = n;
198 return 0;
199}
200
201static int get_config_reg(struct pinmux_info *gpioc, pinmux_enum_t enum_id,
202 struct pinmux_cfg_reg **crp, int *indexp,
203 unsigned long **cntp)
204{
205 struct pinmux_cfg_reg *config_reg;
206 unsigned long r_width, f_width;
207 int k, n;
208
209 k = 0;
210 while (1) {
211 config_reg = gpioc->cfg_regs + k;
212
213 r_width = config_reg->reg_width;
214 f_width = config_reg->field_width;
215
216 if (!r_width)
217 break;
218 for (n = 0; n < (r_width / f_width) * 1 << f_width; n++) {
219 if (config_reg->enum_ids[n] == enum_id) {
220 *crp = config_reg;
221 *indexp = n;
222 *cntp = &config_reg->cnt[n / (1 << f_width)];
223 return 0;
224 }
225 }
226 k++;
227 }
228
229 return -1;
230}
231
232static int get_gpio_enum_id(struct pinmux_info *gpioc, unsigned gpio,
233 int pos, pinmux_enum_t *enum_idp)
234{
235 pinmux_enum_t enum_id = gpioc->gpios[gpio].enum_id;
236 pinmux_enum_t *data = gpioc->gpio_data;
237 int k;
238
239 if (!enum_in_range(enum_id, &gpioc->data)) {
240 if (!enum_in_range(enum_id, &gpioc->mark)) {
241 pr_err("non data/mark enum_id for gpio %d\n", gpio);
242 return -1;
243 }
244 }
245
246 if (pos) {
247 *enum_idp = data[pos + 1];
248 return pos + 1;
249 }
250
251 for (k = 0; k < gpioc->gpio_data_size; k++) {
252 if (data[k] == enum_id) {
253 *enum_idp = data[k + 1];
254 return k + 1;
255 }
256 }
257
258 pr_err("cannot locate data/mark enum_id for gpio %d\n", gpio);
259 return -1;
260}
261
262static void write_config_reg(struct pinmux_info *gpioc,
263 struct pinmux_cfg_reg *crp,
264 int index)
265{
266 unsigned long ncomb, pos, value;
267
268 ncomb = 1 << crp->field_width;
269 pos = index / ncomb;
270 value = index % ncomb;
271
272 gpio_write_reg(crp->reg, crp->reg_width, crp->field_width, pos, value);
273}
274
275static int check_config_reg(struct pinmux_info *gpioc,
276 struct pinmux_cfg_reg *crp,
277 int index)
278{
279 unsigned long ncomb, pos, value;
280
281 ncomb = 1 << crp->field_width;
282 pos = index / ncomb;
283 value = index % ncomb;
284
285 if (gpio_read_reg(crp->reg, crp->reg_width,
286 crp->field_width, pos) == value)
287 return 0;
288
289 return -1;
290}
291
292enum { GPIO_CFG_DRYRUN, GPIO_CFG_REQ, GPIO_CFG_FREE };
293
294static int pinmux_config_gpio(struct pinmux_info *gpioc, unsigned gpio,
295 int pinmux_type, int cfg_mode)
296{
297 struct pinmux_cfg_reg *cr = NULL;
298 pinmux_enum_t enum_id;
299 struct pinmux_range *range;
300 int in_range, pos, index;
301 unsigned long *cntp;
302
303 switch (pinmux_type) {
304
305 case PINMUX_TYPE_FUNCTION:
306 range = NULL;
307 break;
308
309 case PINMUX_TYPE_OUTPUT:
310 range = &gpioc->output;
311 break;
312
313 case PINMUX_TYPE_INPUT:
314 range = &gpioc->input;
315 break;
316
317 case PINMUX_TYPE_INPUT_PULLUP:
318 range = &gpioc->input_pu;
319 break;
320
321 case PINMUX_TYPE_INPUT_PULLDOWN:
322 range = &gpioc->input_pd;
323 break;
324
325 default:
326 goto out_err;
327 }
328
329 pos = 0;
330 enum_id = 0;
331 index = 0;
332 while (1) {
333 pos = get_gpio_enum_id(gpioc, gpio, pos, &enum_id);
334 if (pos <= 0)
335 goto out_err;
336
337 if (!enum_id)
338 break;
339
340 in_range = enum_in_range(enum_id, &gpioc->function);
341 if (!in_range && range) {
342 in_range = enum_in_range(enum_id, range);
343
344 if (in_range && enum_id == range->force)
345 continue;
346 }
347
348 if (!in_range)
349 continue;
350
351 if (get_config_reg(gpioc, enum_id, &cr, &index, &cntp) != 0)
352 goto out_err;
353
354 switch (cfg_mode) {
355 case GPIO_CFG_DRYRUN:
356 if (!*cntp || !check_config_reg(gpioc, cr, index))
357 continue;
358 break;
359
360 case GPIO_CFG_REQ:
361 write_config_reg(gpioc, cr, index);
362 *cntp = *cntp + 1;
363 break;
364
365 case GPIO_CFG_FREE:
366 *cntp = *cntp - 1;
367 break;
368 }
369 }
370
371 return 0;
372 out_err:
373 return -1;
374}
375
376static DEFINE_SPINLOCK(gpio_lock);
377
378static struct pinmux_info *chip_to_pinmux(struct gpio_chip *chip)
379{
380 return container_of(chip, struct pinmux_info, chip);
381}
382
383static int sh_gpio_request(struct gpio_chip *chip, unsigned offset)
384{
385 struct pinmux_info *gpioc = chip_to_pinmux(chip);
386 struct pinmux_data_reg *dummy;
387 unsigned long flags;
388 int i, ret, pinmux_type;
389
390 ret = -EINVAL;
391
392 if (!gpioc)
393 goto err_out;
394
395 spin_lock_irqsave(&gpio_lock, flags);
396
397 if ((gpioc->gpios[offset].flags & PINMUX_FLAG_TYPE) != PINMUX_TYPE_NONE)
398 goto err_unlock;
399
400 /* setup pin function here if no data is associated with pin */
401
402 if (get_data_reg(gpioc, offset, &dummy, &i) != 0)
403 pinmux_type = PINMUX_TYPE_FUNCTION;
404 else
405 pinmux_type = PINMUX_TYPE_GPIO;
406
407 if (pinmux_type == PINMUX_TYPE_FUNCTION) {
408 if (pinmux_config_gpio(gpioc, offset,
409 pinmux_type,
410 GPIO_CFG_DRYRUN) != 0)
411 goto err_unlock;
412
413 if (pinmux_config_gpio(gpioc, offset,
414 pinmux_type,
415 GPIO_CFG_REQ) != 0)
416 BUG();
417 }
418
419 gpioc->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
420 gpioc->gpios[offset].flags |= pinmux_type;
421
422 ret = 0;
423 err_unlock:
424 spin_unlock_irqrestore(&gpio_lock, flags);
425 err_out:
426 return ret;
427}
428
429static void sh_gpio_free(struct gpio_chip *chip, unsigned offset)
430{
431 struct pinmux_info *gpioc = chip_to_pinmux(chip);
432 unsigned long flags;
433 int pinmux_type;
434
435 if (!gpioc)
436 return;
437
438 spin_lock_irqsave(&gpio_lock, flags);
439
440 pinmux_type = gpioc->gpios[offset].flags & PINMUX_FLAG_TYPE;
441 pinmux_config_gpio(gpioc, offset, pinmux_type, GPIO_CFG_FREE);
442 gpioc->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
443 gpioc->gpios[offset].flags |= PINMUX_TYPE_NONE;
444
445 spin_unlock_irqrestore(&gpio_lock, flags);
446}
447
448static int pinmux_direction(struct pinmux_info *gpioc,
449 unsigned gpio, int new_pinmux_type)
450{
451 int pinmux_type;
452 int ret = -EINVAL;
453
454 if (!gpioc)
455 goto err_out;
456
457 pinmux_type = gpioc->gpios[gpio].flags & PINMUX_FLAG_TYPE;
458
459 switch (pinmux_type) {
460 case PINMUX_TYPE_GPIO:
461 break;
462 case PINMUX_TYPE_OUTPUT:
463 case PINMUX_TYPE_INPUT:
464 case PINMUX_TYPE_INPUT_PULLUP:
465 case PINMUX_TYPE_INPUT_PULLDOWN:
466 pinmux_config_gpio(gpioc, gpio, pinmux_type, GPIO_CFG_FREE);
467 break;
468 default:
469 goto err_out;
470 }
471
472 if (pinmux_config_gpio(gpioc, gpio,
473 new_pinmux_type,
474 GPIO_CFG_DRYRUN) != 0)
475 goto err_out;
476
477 if (pinmux_config_gpio(gpioc, gpio,
478 new_pinmux_type,
479 GPIO_CFG_REQ) != 0)
480 BUG();
481
482 gpioc->gpios[gpio].flags &= ~PINMUX_FLAG_TYPE;
483 gpioc->gpios[gpio].flags |= new_pinmux_type;
484
485 ret = 0;
486 err_out:
487 return ret;
488}
489
490static int sh_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
491{
492 struct pinmux_info *gpioc = chip_to_pinmux(chip);
493 unsigned long flags;
494 int ret;
495
496 spin_lock_irqsave(&gpio_lock, flags);
497 ret = pinmux_direction(gpioc, offset, PINMUX_TYPE_INPUT);
498 spin_unlock_irqrestore(&gpio_lock, flags);
499
500 return ret;
501}
502
503static void sh_gpio_set_value(struct pinmux_info *gpioc,
504 unsigned gpio, int value)
505{
506 struct pinmux_data_reg *dr = NULL;
507 int bit = 0;
508
509 if (!gpioc || get_data_reg(gpioc, gpio, &dr, &bit) != 0)
510 BUG();
511 else
512 gpio_write_bit(dr, bit, value);
513}
514
515static int sh_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
516 int value)
517{
518 struct pinmux_info *gpioc = chip_to_pinmux(chip);
519 unsigned long flags;
520 int ret;
521
522 sh_gpio_set_value(gpioc, offset, value);
523 spin_lock_irqsave(&gpio_lock, flags);
524 ret = pinmux_direction(gpioc, offset, PINMUX_TYPE_OUTPUT);
525 spin_unlock_irqrestore(&gpio_lock, flags);
526
527 return ret;
528}
529
530static int sh_gpio_get_value(struct pinmux_info *gpioc, unsigned gpio)
531{
532 struct pinmux_data_reg *dr = NULL;
533 int bit = 0;
534
535 if (!gpioc || get_data_reg(gpioc, gpio, &dr, &bit) != 0) {
536 BUG();
537 return 0;
538 }
539
540 return gpio_read_reg(dr->reg, dr->reg_width, 1, bit);
541}
542
543static int sh_gpio_get(struct gpio_chip *chip, unsigned offset)
544{
545 return sh_gpio_get_value(chip_to_pinmux(chip), offset);
546}
547
548static void sh_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
549{
550 sh_gpio_set_value(chip_to_pinmux(chip), offset, value);
551}
552
553int register_pinmux(struct pinmux_info *pip)
554{
555 struct gpio_chip *chip = &pip->chip;
556
557 pr_info("sh pinmux: %s handling gpio %d -> %d\n",
558 pip->name, pip->first_gpio, pip->last_gpio);
559
560 setup_data_regs(pip);
561
562 chip->request = sh_gpio_request;
563 chip->free = sh_gpio_free;
564 chip->direction_input = sh_gpio_direction_input;
565 chip->get = sh_gpio_get;
566 chip->direction_output = sh_gpio_direction_output;
567 chip->set = sh_gpio_set;
568
569 WARN_ON(pip->first_gpio != 0); /* needs testing */
570
571 chip->label = pip->name;
572 chip->owner = THIS_MODULE;
573 chip->base = pip->first_gpio;
574 chip->ngpio = (pip->last_gpio - pip->first_gpio) + 1;
575
576 return gpiochip_add(chip);
577}
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 3ad5157f9899..b4b5de930cf5 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -281,18 +281,34 @@ static void sh_mobile_lcdc_deferred_io(struct fb_info *info,
281 struct list_head *pagelist) 281 struct list_head *pagelist)
282{ 282{
283 struct sh_mobile_lcdc_chan *ch = info->par; 283 struct sh_mobile_lcdc_chan *ch = info->par;
284 unsigned int nr_pages;
285 284
286 /* enable clocks before accessing hardware */ 285 /* enable clocks before accessing hardware */
287 sh_mobile_lcdc_clk_on(ch->lcdc); 286 sh_mobile_lcdc_clk_on(ch->lcdc);
288 287
289 nr_pages = sh_mobile_lcdc_sginit(info, pagelist); 288 /*
290 dma_map_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE); 289 * It's possible to get here without anything on the pagelist via
291 290 * sh_mobile_lcdc_deferred_io_touch() or via a userspace fsync()
292 /* trigger panel update */ 291 * invocation. In the former case, the acceleration routines are
293 lcdc_write_chan(ch, LDSM2R, 1); 292 * stepped in to when using the framebuffer console causing the
294 293 * workqueue to be scheduled without any dirty pages on the list.
295 dma_unmap_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE); 294 *
295 * Despite this, a panel update is still needed given that the
296 * acceleration routines have their own methods for writing in
297 * that still need to be updated.
298 *
299 * The fsync() and empty pagelist case could be optimized for,
300 * but we don't bother, as any application exhibiting such
301 * behaviour is fundamentally broken anyways.
302 */
303 if (!list_empty(pagelist)) {
304 unsigned int nr_pages = sh_mobile_lcdc_sginit(info, pagelist);
305
306 /* trigger panel update */
307 dma_map_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE);
308 lcdc_write_chan(ch, LDSM2R, 1);
309 dma_unmap_sg(info->dev, ch->sglist, nr_pages, DMA_TO_DEVICE);
310 } else
311 lcdc_write_chan(ch, LDSM2R, 1);
296} 312}
297 313
298static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info) 314static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info)
generated by cgit v1.2.2 (git 2.25.0) at 2026-05-28 01:03:48 -0400