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authorPadmavathi Venna <padma.v@samsung.com>2012-12-19 21:49:29 +0400
committerKukjin Kim <kgene.kim@samsung.com>2012-12-19 21:49:29 +0400
commitdb7af96ee96d1c2f208611022740f9469158d3a8 (patch)
tree0abfdcf5da55ee7223fab1ea5477c0bb19350363 /arch/arm/mach-s3c64xx/clock.c
parent74779e22261172ea728b989310f6ecc991b57d62 (diff)
downloadlinux-db7af96ee96d1c2f208611022740f9469158d3a8.tar.xz
ARM: S3C64XX: Add I2S clkdev support
I2S controller has an internal mux for RCLK source clks. The list of source clk names were passed through platform data in non-dt case. Register the existing RCLK source clocks with clkdev using generic connection id. This is required as part of adding DT support for I2S controller driver. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-s3c64xx/clock.c')
-rw-r--r--arch/arm/mach-s3c64xx/clock.c126
1 files changed, 77 insertions, 49 deletions
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index 1a6f85777449..803711e283b2 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -149,25 +149,6 @@ static struct clk init_clocks_off[] = {
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C6410_CLKCON_PCLK_I2C1,
}, {
- .name = "iis",
- .devname = "samsung-i2s.0",
- .parent = &clk_p,
- .enable = s3c64xx_pclk_ctrl,
- .ctrlbit = S3C_CLKCON_PCLK_IIS0,
- }, {
- .name = "iis",
- .devname = "samsung-i2s.1",
- .parent = &clk_p,
- .enable = s3c64xx_pclk_ctrl,
- .ctrlbit = S3C_CLKCON_PCLK_IIS1,
- }, {
-#ifdef CONFIG_CPU_S3C6410
- .name = "iis",
- .parent = &clk_p,
- .enable = s3c64xx_pclk_ctrl,
- .ctrlbit = S3C6410_CLKCON_PCLK_IIS2,
- }, {
-#endif
.name = "keypad",
.parent = &clk_p,
.enable = s3c64xx_pclk_ctrl,
@@ -337,6 +318,32 @@ static struct clk clk_48m_spi1 = {
.ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
};
+static struct clk clk_i2s0 = {
+ .name = "iis",
+ .devname = "samsung-i2s.0",
+ .parent = &clk_p,
+ .enable = s3c64xx_pclk_ctrl,
+ .ctrlbit = S3C_CLKCON_PCLK_IIS0,
+};
+
+static struct clk clk_i2s1 = {
+ .name = "iis",
+ .devname = "samsung-i2s.1",
+ .parent = &clk_p,
+ .enable = s3c64xx_pclk_ctrl,
+ .ctrlbit = S3C_CLKCON_PCLK_IIS1,
+};
+
+#ifdef CONFIG_CPU_S3C6410
+static struct clk clk_i2s2 = {
+ .name = "iis",
+ .devname = "samsung-i2s.2",
+ .parent = &clk_p,
+ .enable = s3c64xx_pclk_ctrl,
+ .ctrlbit = S3C6410_CLKCON_PCLK_IIS2,
+};
+#endif
+
static struct clk init_clocks[] = {
{
.name = "lcd",
@@ -660,6 +667,7 @@ static struct clksrc_sources clkset_audio1 = {
.nr_sources = ARRAY_SIZE(clkset_audio1_list),
};
+#ifdef CONFIG_CPU_S3C6410
static struct clk *clkset_audio2_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_dout_mpll,
@@ -672,6 +680,7 @@ static struct clksrc_sources clkset_audio2 = {
.sources = clkset_audio2_list,
.nr_sources = ARRAY_SIZE(clkset_audio2_list),
};
+#endif
static struct clksrc_clk clksrcs[] = {
{
@@ -685,36 +694,6 @@ static struct clksrc_clk clksrcs[] = {
.sources = &clkset_uhost,
}, {
.clk = {
- .name = "audio-bus",
- .devname = "samsung-i2s.0",
- .ctrlbit = S3C_CLKCON_SCLK_AUDIO0,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 7, .size = 3 },
- .reg_div = { .reg = S3C_CLK_DIV2, .shift = 8, .size = 4 },
- .sources = &clkset_audio0,
- }, {
- .clk = {
- .name = "audio-bus",
- .devname = "samsung-i2s.1",
- .ctrlbit = S3C_CLKCON_SCLK_AUDIO1,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 10, .size = 3 },
- .reg_div = { .reg = S3C_CLK_DIV2, .shift = 12, .size = 4 },
- .sources = &clkset_audio1,
- }, {
- .clk = {
- .name = "audio-bus",
- .devname = "samsung-i2s.2",
- .ctrlbit = S3C6410_CLKCON_SCLK_AUDIO2,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C6410_CLK_SRC2, .shift = 0, .size = 3 },
- .reg_div = { .reg = S3C_CLK_DIV2, .shift = 24, .size = 4 },
- .sources = &clkset_audio2,
- }, {
- .clk = {
.name = "irda-bus",
.ctrlbit = S3C_CLKCON_SCLK_IRDA,
.enable = s3c64xx_sclk_ctrl,
@@ -805,6 +784,43 @@ static struct clksrc_clk clk_sclk_spi1 = {
.sources = &clkset_spi_mmc,
};
+static struct clksrc_clk clk_audio_bus0 = {
+ .clk = {
+ .name = "audio-bus",
+ .devname = "samsung-i2s.0",
+ .ctrlbit = S3C_CLKCON_SCLK_AUDIO0,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 7, .size = 3 },
+ .reg_div = { .reg = S3C_CLK_DIV2, .shift = 8, .size = 4 },
+ .sources = &clkset_audio0,
+};
+
+static struct clksrc_clk clk_audio_bus1 = {
+ .clk = {
+ .name = "audio-bus",
+ .devname = "samsung-i2s.1",
+ .ctrlbit = S3C_CLKCON_SCLK_AUDIO1,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 10, .size = 3 },
+ .reg_div = { .reg = S3C_CLK_DIV2, .shift = 12, .size = 4 },
+ .sources = &clkset_audio1,
+};
+
+#ifdef CONFIG_CPU_S3C6410
+static struct clksrc_clk clk_audio_bus2 = {
+ .clk = {
+ .name = "audio-bus",
+ .devname = "samsung-i2s.2",
+ .ctrlbit = S3C6410_CLKCON_SCLK_AUDIO2,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C6410_CLK_SRC2, .shift = 0, .size = 3 },
+ .reg_div = { .reg = S3C_CLK_DIV2, .shift = 24, .size = 4 },
+ .sources = &clkset_audio2,
+};
+#endif
/* Clock initialisation code */
static struct clksrc_clk *init_parents[] = {
@@ -820,6 +836,8 @@ static struct clksrc_clk *clksrc_cdev[] = {
&clk_sclk_mmc2,
&clk_sclk_spi0,
&clk_sclk_spi1,
+ &clk_audio_bus0,
+ &clk_audio_bus1,
};
static struct clk *clk_cdev[] = {
@@ -828,6 +846,8 @@ static struct clk *clk_cdev[] = {
&clk_hsmmc2,
&clk_48m_spi0,
&clk_48m_spi1,
+ &clk_i2s0,
+ &clk_i2s1,
};
static struct clk_lookup s3c64xx_clk_lookup[] = {
@@ -844,6 +864,14 @@ static struct clk_lookup s3c64xx_clk_lookup[] = {
CLKDEV_INIT("s3c6410-spi.0", "spi_busclk2", &clk_48m_spi0),
CLKDEV_INIT("s3c6410-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
CLKDEV_INIT("s3c6410-spi.1", "spi_busclk2", &clk_48m_spi1),
+ CLKDEV_INIT("samsung-i2s.0", "i2s_opclk0", &clk_i2s0),
+ CLKDEV_INIT("samsung-i2s.0", "i2s_opclk1", &clk_audio_bus0.clk),
+ CLKDEV_INIT("samsung-i2s.1", "i2s_opclk0", &clk_i2s1),
+ CLKDEV_INIT("samsung-i2s.1", "i2s_opclk1", &clk_audio_bus1.clk),
+#ifdef CONFIG_CPU_S3C6410
+ CLKDEV_INIT("samsung-i2s.2", "i2s_opclk0", &clk_i2s2),
+ CLKDEV_INIT("samsung-i2s.2", "i2s_opclk1", &clk_audio_bus2.clk),
+#endif
};
#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)