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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-09 14:30:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-09 14:30:28 -0800
commit190a44e65b0f32eaf5b4db3969f5eb224f83a7a2 (patch)
tree577c9a3949ba06e62d082eb11894b7045ebe3ef3 /arch/arm/mach-s3c64xx/clock.c
parentdfc1ebe76663d582a01c9dc572395cf8086d01de (diff)
parentb48741cce3be32a48af9a2b272f3f13a077375cf (diff)
Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Cleanups for the Samsung platforms Various cleanup changes that the device driver changes are built upon. Since the samsung cleanups depend on the device tree series, which depends on the first set of cleanups for tegra. * tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: EXYNOS: Use gpio_request_one ARM: S5PV210: Use gpio_request_one ARM: S3C64XX: Modified according to SPI consolidation work ARM: S5PV210: Modified files for SPI consolidation work ARM: S5P64X0: Modified files for SPI consolidation work ARM: S5PC100: Modified files for SPI consolidation work ARM: S3C64XX: Modified files for SPI consolidation work ARM: SAMSUNG: Consolidation of SPI platform devices to plat-samsung ARM: SAMSUNG: Remove SPI bus clocks from platform data ARM: S5PV210: Add SPI clkdev support ARM: S5P64X0: Add SPI clkdev support ARM: S5PC100: Add SPI clkdev support ARM: S3C64XX: Add SPI clkdev support spi/s3c64xx: Use bus clocks created using clkdev mmc: sdhci-s3c: Use generic clock names for sdhci bus clock options ARM: SAMSUNG: Add lookup of sdhci-s3c clocks using generic names ARM: SAMSUNG: Remove SDHCI bus clocks from platform data ARM: SAMSUNG: Use kmemdup rather than duplicating its implementation ARM: EXYNOS: remove exynos4_scu_enable()
Diffstat (limited to 'arch/arm/mach-s3c64xx/clock.c')
-rw-r--r--arch/arm/mach-s3c64xx/clock.c206
1 files changed, 127 insertions, 79 deletions
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index a3aafb6768c..31bb27dc4ae 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -184,18 +184,6 @@ static struct clk init_clocks_off[] = {
.enable = s3c64xx_pclk_ctrl,
.ctrlbit = S3C_CLKCON_PCLK_SPI1,
}, {
- .name = "spi_48m",
- .devname = "s3c64xx-spi.0",
- .parent = &clk_48m,
- .enable = s3c64xx_sclk_ctrl,
- .ctrlbit = S3C_CLKCON_SCLK_SPI0_48,
- }, {
- .name = "spi_48m",
- .devname = "s3c64xx-spi.1",
- .parent = &clk_48m,
- .enable = s3c64xx_sclk_ctrl,
- .ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
- }, {
.name = "48m",
.devname = "s3c-sdhci.0",
.parent = &clk_48m,
@@ -226,6 +214,22 @@ static struct clk init_clocks_off[] = {
},
};
+static struct clk clk_48m_spi0 = {
+ .name = "spi_48m",
+ .devname = "s3c64xx-spi.0",
+ .parent = &clk_48m,
+ .enable = s3c64xx_sclk_ctrl,
+ .ctrlbit = S3C_CLKCON_SCLK_SPI0_48,
+};
+
+static struct clk clk_48m_spi1 = {
+ .name = "spi_48m",
+ .devname = "s3c64xx-spi.1",
+ .parent = &clk_48m,
+ .enable = s3c64xx_sclk_ctrl,
+ .ctrlbit = S3C_CLKCON_SCLK_SPI1_48,
+};
+
static struct clk init_clocks[] = {
{
.name = "lcd",
@@ -243,24 +247,6 @@ static struct clk init_clocks[] = {
.enable = s3c64xx_hclk_ctrl,
.ctrlbit = S3C_CLKCON_HCLK_UHOST,
}, {
- .name = "hsmmc",
- .devname = "s3c-sdhci.0",
- .parent = &clk_h,
- .enable = s3c64xx_hclk_ctrl,
- .ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
- }, {
- .name = "hsmmc",
- .devname = "s3c-sdhci.1",
- .parent = &clk_h,
- .enable = s3c64xx_hclk_ctrl,
- .ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
- }, {
- .name = "hsmmc",
- .devname = "s3c-sdhci.2",
- .parent = &clk_h,
- .enable = s3c64xx_hclk_ctrl,
- .ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
- }, {
.name = "otg",
.parent = &clk_h,
.enable = s3c64xx_hclk_ctrl,
@@ -310,6 +296,29 @@ static struct clk init_clocks[] = {
}
};
+static struct clk clk_hsmmc0 = {
+ .name = "hsmmc",
+ .devname = "s3c-sdhci.0",
+ .parent = &clk_h,
+ .enable = s3c64xx_hclk_ctrl,
+ .ctrlbit = S3C_CLKCON_HCLK_HSMMC0,
+};
+
+static struct clk clk_hsmmc1 = {
+ .name = "hsmmc",
+ .devname = "s3c-sdhci.1",
+ .parent = &clk_h,
+ .enable = s3c64xx_hclk_ctrl,
+ .ctrlbit = S3C_CLKCON_HCLK_HSMMC1,
+};
+
+static struct clk clk_hsmmc2 = {
+ .name = "hsmmc",
+ .devname = "s3c-sdhci.2",
+ .parent = &clk_h,
+ .enable = s3c64xx_hclk_ctrl,
+ .ctrlbit = S3C_CLKCON_HCLK_HSMMC2,
+};
static struct clk clk_fout_apll = {
.name = "fout_apll",
@@ -578,36 +587,6 @@ static struct clksrc_sources clkset_camif = {
static struct clksrc_clk clksrcs[] = {
{
.clk = {
- .name = "mmc_bus",
- .devname = "s3c-sdhci.0",
- .ctrlbit = S3C_CLKCON_SCLK_MMC0,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
- .reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
- .sources = &clkset_spi_mmc,
- }, {
- .clk = {
- .name = "mmc_bus",
- .devname = "s3c-sdhci.1",
- .ctrlbit = S3C_CLKCON_SCLK_MMC1,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
- .reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
- .sources = &clkset_spi_mmc,
- }, {
- .clk = {
- .name = "mmc_bus",
- .devname = "s3c-sdhci.2",
- .ctrlbit = S3C_CLKCON_SCLK_MMC2,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
- .reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
- .sources = &clkset_spi_mmc,
- }, {
- .clk = {
.name = "usb-bus-host",
.ctrlbit = S3C_CLKCON_SCLK_UHOST,
.enable = s3c64xx_sclk_ctrl,
@@ -617,25 +596,6 @@ static struct clksrc_clk clksrcs[] = {
.sources = &clkset_uhost,
}, {
.clk = {
- .name = "spi-bus",
- .devname = "s3c64xx-spi.0",
- .ctrlbit = S3C_CLKCON_SCLK_SPI0,
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
- .reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
- .sources = &clkset_spi_mmc,
- }, {
- .clk = {
- .name = "spi-bus",
- .devname = "s3c64xx-spi.1",
- .enable = s3c64xx_sclk_ctrl,
- },
- .reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
- .reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
- .sources = &clkset_spi_mmc,
- }, {
- .clk = {
.name = "audio-bus",
.devname = "samsung-i2s.0",
.ctrlbit = S3C_CLKCON_SCLK_AUDIO0,
@@ -697,6 +657,66 @@ static struct clksrc_clk clk_sclk_uclk = {
.sources = &clkset_uart,
};
+static struct clksrc_clk clk_sclk_mmc0 = {
+ .clk = {
+ .name = "mmc_bus",
+ .devname = "s3c-sdhci.0",
+ .ctrlbit = S3C_CLKCON_SCLK_MMC0,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 },
+ .reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 },
+ .sources = &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+ .clk = {
+ .name = "mmc_bus",
+ .devname = "s3c-sdhci.1",
+ .ctrlbit = S3C_CLKCON_SCLK_MMC1,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 },
+ .reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 },
+ .sources = &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+ .clk = {
+ .name = "mmc_bus",
+ .devname = "s3c-sdhci.2",
+ .ctrlbit = S3C_CLKCON_SCLK_MMC2,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 },
+ .reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 },
+ .sources = &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+ .clk = {
+ .name = "spi-bus",
+ .devname = "s3c64xx-spi.0",
+ .ctrlbit = S3C_CLKCON_SCLK_SPI0,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
+ .reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
+ .sources = &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+ .clk = {
+ .name = "spi-bus",
+ .devname = "s3c64xx-spi.1",
+ .ctrlbit = S3C_CLKCON_SCLK_SPI1,
+ .enable = s3c64xx_sclk_ctrl,
+ },
+ .reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
+ .reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
+ .sources = &clkset_spi_mmc,
+};
+
/* Clock initialisation code */
static struct clksrc_clk *init_parents[] = {
@@ -707,11 +727,35 @@ static struct clksrc_clk *init_parents[] = {
static struct clksrc_clk *clksrc_cdev[] = {
&clk_sclk_uclk,
+ &clk_sclk_mmc0,
+ &clk_sclk_mmc1,
+ &clk_sclk_mmc2,
+ &clk_sclk_spi0,
+ &clk_sclk_spi1,
+};
+
+static struct clk *clk_cdev[] = {
+ &clk_hsmmc0,
+ &clk_hsmmc1,
+ &clk_hsmmc2,
+ &clk_48m_spi0,
+ &clk_48m_spi1,
};
static struct clk_lookup s3c64xx_clk_lookup[] = {
CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
+ CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
+ CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
+ CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
+ CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+ CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+ CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+ CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
+ CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
+ CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_48m_spi0),
+ CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
+ CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk2", &clk_48m_spi1),
};
#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
@@ -834,6 +878,10 @@ void __init s3c64xx_register_clocks(unsigned long xtal,
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+ s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
+ for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
+ s3c_disable_clocks(clk_cdev[cnt], 1);
+
s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1));
s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++)