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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-11 03:05:37 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-11 03:05:37 -0500
commit53575aa99dc1584484b99c8173042d8370f6ed88 (patch)
tree06fd13c8847c1e97cd5080ea31cec47c4ad54963 /include/linux/platform_data
parentd5aabbcaee6bb5fb57ea8c67714516af4d8238ce (diff)
parent3316dee245ef297155fa45b8d14263dfd6a9164b (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. In this case it's involved: - Some Davinci driver updates that has required corresponding platform code changes (gpio mostly) - CCI bindings and a few driver updates - Marvell mvebu patches for PCI MSI support (could have gone through the PCI tree for this release, but they were acked by Bjorn for 3.12 so we kept them through arm-soc). - Marvell dove switch-over to DT-based PCIe configuration - Misc updates for Samsung platform dmaengine drivers" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits) ARM: S3C24XX: add dma pdata for s3c2410, s3c2440 and s3c2442 dmaengine: s3c24xx-dma: add support for the s3c2410 type of controller ARM: S3C24XX: Fix possible dma selection warning PCI: mvebu: make local functions static PCI: mvebu: add I/O access wrappers PCI: mvebu: Dynamically detect if the PEX link is up to enable hot plug ARM: mvebu: fix gated clock documentation ARM: dove: remove legacy pcie and clock init ARM: dove: switch to DT probed mbus address windows ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443 dmaengine: add driver for Samsung s3c24xx SoCs ARM: S3C24XX: number the dma clocks PCI: mvebu: add support for Marvell Dove SoCs PCI: mvebu: add support for reset on GPIO PCI: mvebu: remove subsys_initcall PCI: mvebu: increment nports only for registered ports PCI: mvebu: move clock enable before register access PCI: mvebu: add support for MSI irqchip: armada-370-xp: implement MSI support ...
Diffstat (limited to 'include/linux/platform_data')
-rw-r--r--include/linux/platform_data/dma-s3c24xx.h46
-rw-r--r--include/linux/platform_data/gpio-davinci.h60
2 files changed, 106 insertions, 0 deletions
diff --git a/include/linux/platform_data/dma-s3c24xx.h b/include/linux/platform_data/dma-s3c24xx.h
new file mode 100644
index 000000000000..89ba1b0c90e4
--- /dev/null
+++ b/include/linux/platform_data/dma-s3c24xx.h
@@ -0,0 +1,46 @@
1/*
2 * S3C24XX DMA handling
3 *
4 * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
9 * any later version.
10 */
11
12/* Helper to encode the source selection constraints for early s3c socs. */
13#define S3C24XX_DMA_CHANREQ(src, chan) ((BIT(3) | src) << chan * 4)
14
15enum s3c24xx_dma_bus {
16 S3C24XX_DMA_APB,
17 S3C24XX_DMA_AHB,
18};
19
20/**
21 * @bus: on which bus does the peripheral reside - AHB or APB.
22 * @handshake: is a handshake with the peripheral necessary
23 * @chansel: channel selection information, depending on variant; reqsel for
24 * s3c2443 and later and channel-selection map for earlier SoCs
25 * see CHANSEL doc in s3c2443-dma.c
26 */
27struct s3c24xx_dma_channel {
28 enum s3c24xx_dma_bus bus;
29 bool handshake;
30 u16 chansel;
31};
32
33/**
34 * struct s3c24xx_dma_platdata - platform specific settings
35 * @num_phy_channels: number of physical channels
36 * @channels: array of virtual channel descriptions
37 * @num_channels: number of virtual channels
38 */
39struct s3c24xx_dma_platdata {
40 int num_phy_channels;
41 struct s3c24xx_dma_channel *channels;
42 int num_channels;
43};
44
45struct dma_chan;
46bool s3c24xx_dma_filter(struct dma_chan *chan, void *param);
diff --git a/include/linux/platform_data/gpio-davinci.h b/include/linux/platform_data/gpio-davinci.h
new file mode 100644
index 000000000000..6efd20264585
--- /dev/null
+++ b/include/linux/platform_data/gpio-davinci.h
@@ -0,0 +1,60 @@
1/*
2 * DaVinci GPIO Platform Related Defines
3 *
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation version 2.
9 *
10 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
11 * kind, whether express or implied; without even the implied warranty
12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#ifndef __DAVINCI_GPIO_PLATFORM_H
17#define __DAVINCI_GPIO_PLATFORM_H
18
19#include <linux/io.h>
20#include <linux/spinlock.h>
21
22#include <asm-generic/gpio.h>
23
24enum davinci_gpio_type {
25 GPIO_TYPE_TNETV107X = 0,
26};
27
28struct davinci_gpio_platform_data {
29 u32 ngpio;
30 u32 gpio_unbanked;
31 u32 intc_irq_num;
32};
33
34
35struct davinci_gpio_controller {
36 struct gpio_chip chip;
37 int irq_base;
38 /* Serialize access to GPIO registers */
39 spinlock_t lock;
40 void __iomem *regs;
41 void __iomem *set_data;
42 void __iomem *clr_data;
43 void __iomem *in_data;
44 int gpio_unbanked;
45 unsigned gpio_irq;
46};
47
48/*
49 * basic gpio routines
50 */
51#define GPIO(X) (X) /* 0 <= X <= (DAVINCI_N_GPIO - 1) */
52
53/* Convert GPIO signal to GPIO pin number */
54#define GPIO_TO_PIN(bank, gpio) (16 * (bank) + (gpio))
55
56static inline u32 __gpio_mask(unsigned gpio)
57{
58 return 1 << (gpio % 32);
59}
60#endif