[alsa-devel] [PATCH v3 2/3] ARM: mx28evk: add platform data for saif

[Dong Aisheng]

This is for supporting saif record function.

Signed-off-by: Dong Aisheng <b29396 at freescale.com>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Wolfram Sang <w.sang at pengutronix.de>
Cc: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
Cc: Mark Brown <broonie at opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg at ti.com>

---
Changes since v2:
 * separate clkmux code into another patch
 * A few minus fixes suggested by Uwe & Wolfram.

Changes since v1:
  * move saif clkmux code into mach-specific part
---
 arch/arm/mach-mxs/devices-mx28.h                |    3 ++-
 arch/arm/mach-mxs/devices/platform-mxs-saif.c   |    5 +++--
 arch/arm/mach-mxs/include/mach/common.h         |    2 ++
 arch/arm/mach-mxs/include/mach/devices-common.h |    4 +++-
 arch/arm/mach-mxs/mach-mx28evk.c                |   16 ++++++++++++++--
 5 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index c888710..4f50094 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -47,6 +47,7 @@ struct platform_device *__init mx28_add_mxsfb(
 		const struct mxsfb_platform_data *pdata);
 
 extern const struct mxs_saif_data mx28_saif_data[] __initconst;
-#define mx28_add_saif(id)              mxs_add_saif(&mx28_saif_data[id])
+#define mx28_add_saif(id, pdata) \
+	mxs_add_saif(&mx28_saif_data[id], pdata)
 
 struct platform_device *__init mx28_add_rtc_stmp3xxx(void);
diff --git a/arch/arm/mach-mxs/devices/platform-mxs-saif.c b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
index 1ec965e..f6e3a60 100644
--- a/arch/arm/mach-mxs/devices/platform-mxs-saif.c
+++ b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
@@ -32,7 +32,8 @@ const struct mxs_saif_data mx28_saif_data[] __initconst = {
 };
 #endif
 
-struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
+struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data,
+				const struct mxs_saif_platform_data *pdata)
 {
 	struct resource res[] = {
 		{
@@ -56,5 +57,5 @@ struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
 	};
 
 	return mxs_add_platform_device("mxs-saif", data->id, res,
-					ARRAY_SIZE(res), NULL, 0);
+				ARRAY_SIZE(res), pdata, sizeof(*pdata));
 }
diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h
index 635bb5d..bf91a10 100644
--- a/arch/arm/mach-mxs/include/mach/common.h
+++ b/arch/arm/mach-mxs/include/mach/common.h
@@ -29,4 +29,6 @@ extern void mx28_init_irq(void);
 
 extern void icoll_init_irq(void);
 
+extern int mxs_saif_clkmux_select(unsigned int clkmux);
+extern int mxs_get_saif_clk_master_id(unsigned int saif_id);
 #endif /* __MACH_MXS_COMMON_H__ */
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index a8080f4..dc369c1 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -94,6 +94,7 @@ struct platform_device *__init mxs_add_mxs_pwm(
 		resource_size_t iobase, int id);
 
 /* saif */
+#include <sound/saif.h>
 struct mxs_saif_data {
 	int id;
 	resource_size_t iobase;
@@ -103,4 +104,5 @@ struct mxs_saif_data {
 };
 
 struct platform_device *__init mxs_add_saif(
-		const struct mxs_saif_data *data);
+		const struct mxs_saif_data *data,
+		const struct mxs_saif_platform_data *pdata);
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index 4a3cca3..5aab344 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -28,6 +28,7 @@
 
 #include <mach/common.h>
 #include <mach/iomux-mx28.h>
+#include <mach/digctl.h>
 
 #include "devices-mx28.h"
 
@@ -417,6 +418,17 @@ static void __init mx28evk_add_regulators(void)
 static void __init mx28evk_add_regulators(void) {}
 #endif
 
+static int mx28evk_mxs_saif_pinit(void)
+{
+	return mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
+}
+
+static const struct mxs_saif_platform_data
+			mx28evk_mxs_saif_pdata __initconst = {
+	.init = mx28evk_mxs_saif_pinit,
+	.get_master_id = mxs_get_saif_clk_master_id,
+};
+
 static void __init mx28evk_init(void)
 {
 	int ret;
@@ -457,8 +469,8 @@ static void __init mx28evk_init(void)
 
 	mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
 
-	mx28_add_saif(0);
-	mx28_add_saif(1);
+	mx28_add_saif(0, &mx28evk_mxs_saif_pdata);
+	mx28_add_saif(1, &mx28evk_mxs_saif_pdata);
 
 	mx28_add_mxs_i2c(0);
 	i2c_register_board_info(0, mxs_i2c0_board_info,
-- 
1.7.0.4