ARM: ux500: Pass MSP DMA platform data though AUXDATA

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>

diff --git a/arch/arm/mach-ux500/board-mop500-msp.c b/arch/arm/mach-ux500/board-mop500-msp.c
index bfd4851..1c60135 100644 (file)
--- a/arch/arm/mach-ux500/board-mop500-msp.c
+++ b/arch/arm/mach-ux500/board-mop500-msp.c
@@ -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,

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index e7593b0..2cb13bc 100644 (file)
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -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),
        {},
 };
 

diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index c6daea2..6794324 100644 (file)
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -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);