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>
git-mirror · Sep 20, 2012 · 724ebbf · 724ebbf
1 parent ae6d35b
commit 724ebbf
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Showing 3 changed files with 18 additions and 4 deletions.
diff --git 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
@@ -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
@@ -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);