ARM: SAMSUNG: Add clock types into platform data

This patch adds clock types into platform data to support
external clock divider instead of internal clock divider.
It is defined that what kinds of clock type is used in machine.

Signed-off-by: Jeongbae Seo <jeongbae.seo@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

5 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/dev-hsmmc.c b/arch/arm/plat-samsung/dev-hsmmc.c
index 5b8aacb5cbc6..db7a65c7f127 100644
--- a/arch/arm/plat-samsung/dev-hsmmc.c
+++ b/arch/arm/plat-samsung/dev-hsmmc.c
@@ -41,6 +41,7 @@ struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata = {
 	.max_width	= 4,
 	.host_caps	= (MMC_CAP_4_BIT_DATA |
 			   MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+	.clk_type	= S3C_SDHCI_CLK_DIV_INTERNAL,
 };
 
 struct platform_device s3c_device_hsmmc0 = {
@@ -73,4 +74,6 @@ void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd)
 		set->cfg_card = pd->cfg_card;
 	if (pd->host_caps)
 		set->host_caps |= pd->host_caps;
+	if (pd->clk_type)
+		set->clk_type = pd->clk_type;
 }
diff --git a/arch/arm/plat-samsung/dev-hsmmc1.c b/arch/arm/plat-samsung/dev-hsmmc1.c
index 9b52828644d6..2497321f08d7 100644
--- a/arch/arm/plat-samsung/dev-hsmmc1.c
+++ b/arch/arm/plat-samsung/dev-hsmmc1.c
@@ -41,6 +41,7 @@ struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata = {
 	.max_width	= 4,
 	.host_caps	= (MMC_CAP_4_BIT_DATA |
 			   MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+	.clk_type	= S3C_SDHCI_CLK_DIV_INTERNAL,
 };
 
 struct platform_device s3c_device_hsmmc1 = {
@@ -73,4 +74,6 @@ void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd)
 		set->cfg_card = pd->cfg_card;
 	if (pd->host_caps)
 		set->host_caps |= pd->host_caps;
+	if (pd->clk_type)
+		set->clk_type = pd->clk_type;
 }
diff --git a/arch/arm/plat-samsung/dev-hsmmc2.c b/arch/arm/plat-samsung/dev-hsmmc2.c
index df9e36b54c0d..f60aedba417c 100644
--- a/arch/arm/plat-samsung/dev-hsmmc2.c
+++ b/arch/arm/plat-samsung/dev-hsmmc2.c
@@ -42,6 +42,7 @@ struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata = {
 	.max_width	= 4,
 	.host_caps	= (MMC_CAP_4_BIT_DATA |
 			   MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+	.clk_type	= S3C_SDHCI_CLK_DIV_INTERNAL,
 };
 
 struct platform_device s3c_device_hsmmc2 = {
@@ -74,4 +75,6 @@ void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd)
 		set->cfg_card = pd->cfg_card;
 	if (pd->host_caps)
 		set->host_caps |= pd->host_caps;
+	if (pd->clk_type)
+		set->clk_type = pd->clk_type;
 }
diff --git a/arch/arm/plat-samsung/dev-hsmmc3.c b/arch/arm/plat-samsung/dev-hsmmc3.c
index ca80897b0d7c..ede776f20e62 100644
--- a/arch/arm/plat-samsung/dev-hsmmc3.c
+++ b/arch/arm/plat-samsung/dev-hsmmc3.c
@@ -45,6 +45,7 @@ struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata = {
 	.max_width	= 4,
 	.host_caps	= (MMC_CAP_4_BIT_DATA |
 			   MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
+	.clk_type	= S3C_SDHCI_CLK_DIV_INTERNAL,
 };
 
 struct platform_device s3c_device_hsmmc3 = {
@@ -77,4 +78,6 @@ void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd)
 		set->cfg_card = pd->cfg_card;
 	if (pd->host_caps)
 		set->host_caps |= pd->host_caps;
+	if (pd->clk_type)
+		set->clk_type = pd->clk_type;
 }
diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h
index d92670ad9897..85853f8c4c5d 100644
--- a/arch/arm/plat-samsung/include/plat/sdhci.h
+++ b/arch/arm/plat-samsung/include/plat/sdhci.h
@@ -28,11 +28,17 @@ enum cd_types {
 	S3C_SDHCI_CD_PERMANENT,	/* no CD line, card permanently wired to host */
 };
 
+enum clk_types {
+	S3C_SDHCI_CLK_DIV_INTERNAL,	/* use mmc internal clock divider */
+	S3C_SDHCI_CLK_DIV_EXTERNAL,	/* use external clock divider */
+};
+
 /**
  * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
  * @max_width: The maximum number of data bits supported.
  * @host_caps: Standard MMC host capabilities bit field.
  * @cd_type: Type of Card Detection method (see cd_types enum above)
+ * @clk_type: Type of clock divider method (see clk_types enum above)
  * @ext_cd_init: Initialize external card detect subsystem. Called on
  *		 sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
  *		 notify_func argument is a callback to the sdhci-s3c driver
@@ -59,6 +65,7 @@ struct s3c_sdhci_platdata {
 	unsigned int	max_width;
 	unsigned int	host_caps;
 	enum cd_types	cd_type;
+	enum clk_types	clk_type;
 
 	char		**clocks;	/* set of clock sources */