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ARM: ux500: Pass MSP DMA platform data though AUXDATA

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It isn't currently possible to pass all platform specific configuration
though Device Tree. Thinks like device names used in the clock
infrastructure, call-backs and DMA information have to be passed in via
AUXDATA structures and the MSP is no exception. Here we're passing DMA
settings.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones 2012-07-25 13:58:36 +01:00
parent ae6d35b948
commit 724ebbf4cf
3 changed files with 18 additions and 4 deletions
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8
arch/arm/mach-ux500/board-mop500-msp.c
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@ -48,7 +48,7 @@ static struct stedma40_chan_cfg msp0_dma_tx = {
/* data_width is set during configuration */
};
static struct msp_i2s_platform_data msp0_platform_data = {
struct msp_i2s_platform_data msp0_platform_data = {
.id = MSP_I2S_0,
.msp_i2s_dma_rx = &msp0_dma_rx,
.msp_i2s_dma_tx = &msp0_dma_tx,
@ -80,7 +80,7 @@ static struct stedma40_chan_cfg msp1_dma_tx = {
/* data_width is set during configuration */
};
static struct msp_i2s_platform_data msp1_platform_data = {
struct msp_i2s_platform_data msp1_platform_data = {
.id = MSP_I2S_1,
.msp_i2s_dma_rx = NULL,
.msp_i2s_dma_tx = &msp1_dma_tx,
@ -159,13 +159,13 @@ static struct platform_device ux500_pcm = {
},
};
static struct msp_i2s_platform_data msp2_platform_data = {
struct msp_i2s_platform_data msp2_platform_data = {
.id = MSP_I2S_2,
.msp_i2s_dma_rx = &msp2_dma_rx,
.msp_i2s_dma_tx = &msp2_dma_tx,
};
static struct msp_i2s_platform_data msp3_platform_data = {
struct msp_i2s_platform_data msp3_platform_data = {
.id = MSP_I2S_3,
.msp_i2s_dma_rx = &msp1_dma_rx,
.msp_i2s_dma_tx = NULL,

9
arch/arm/mach-ux500/board-mop500.c
View File

@ -755,6 +755,15 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL),
/* Requires device name bindings. */
OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
/* Requires clock name and DMA bindings. */
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
"ux500-msp-i2s.0", &msp0_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
"ux500-msp-i2s.1", &msp1_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80117000,
"ux500-msp-i2s.2", &msp2_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
"ux500-msp-i2s.3", &msp3_platform_data),
{},
};

5
arch/arm/mach-ux500/board-mop500.h
View File

@ -9,6 +9,7 @@
/* For NOMADIK_NR_GPIO */
#include <mach/irqs.h>
#include <mach/msp.h>
#include <linux/amba/mmci.h>
/* Snowball specific GPIO assignments, this board has no GPIO expander */
@ -83,6 +84,10 @@ extern struct mmci_platform_data mop500_sdi0_data;
extern struct mmci_platform_data mop500_sdi1_data;
extern struct mmci_platform_data mop500_sdi2_data;
extern struct mmci_platform_data mop500_sdi4_data;
extern struct msp_i2s_platform_data msp0_platform_data;
extern struct msp_i2s_platform_data msp1_platform_data;
extern struct msp_i2s_platform_data msp2_platform_data;
extern struct msp_i2s_platform_data msp3_platform_data;
extern struct arm_pmu_platdata db8500_pmu_platdata;
extern void mop500_sdi_init(struct device *parent);