From db7af96ee96d1c2f208611022740f9469158d3a8 Mon Sep 17 00:00:00 2001 From: Padmavathi Venna Date: Wed, 19 Dec 2012 09:49:29 -0800 Subject: [PATCH] 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 Acked-by: Sangbeom Kim Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/clock.c | 126 +++++++++++++++++++++++--------------- arch/arm/mach-s3c64xx/dev-audio.c | 11 ---- 2 files changed, 77 insertions(+), 60 deletions(-) diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c index 1a6f857..803711e 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) diff --git a/arch/arm/mach-s3c64xx/dev-audio.c b/arch/arm/mach-s3c64xx/dev-audio.c index 35f3e07..e367e87 100644 --- a/arch/arm/mach-s3c64xx/dev-audio.c +++ b/arch/arm/mach-s3c64xx/dev-audio.c @@ -23,11 +23,6 @@ #include #include -static const char *rclksrc[] = { - [0] = "iis", - [1] = "audio-bus", -}; - static int s3c64xx_i2s_cfg_gpio(struct platform_device *pdev) { unsigned int base; @@ -64,11 +59,6 @@ static struct resource s3c64xx_iis0_resource[] = { static struct s3c_audio_pdata i2sv3_pdata = { .cfg_gpio = s3c64xx_i2s_cfg_gpio, - .type = { - .i2s = { - .src_clk = rclksrc, - }, - }, }; struct platform_device s3c64xx_device_iis0 = { @@ -110,7 +100,6 @@ static struct s3c_audio_pdata i2sv4_pdata = { .type = { .i2s = { .quirks = QUIRK_PRI_6CHAN, - .src_clk = rclksrc, }, }, }; -- 2.7.4