RE: [PATCH 7/8] ARM: S5PV210: add support for TV device

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Marek Szyprowski wrote:
> 
> From: Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
> 
> This patch adds clocks and definitions needed by TV driver
> infrastructure for Samsung S5PV210 platform.
> 
> Signed-off-by: Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
>  arch/arm/mach-s5pv210/clock.c                   |  156
> +++++++++++++++++++++--
>  arch/arm/mach-s5pv210/cpu.c                     |    4 +
>  arch/arm/mach-s5pv210/include/mach/irqs.h       |    2 +-
>  arch/arm/mach-s5pv210/include/mach/map.h        |   16 +++
>  arch/arm/mach-s5pv210/include/mach/regs-clock.h |    7 +-
>  5 files changed, 171 insertions(+), 14 deletions(-)
> 
> diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
> index f41ee26..d1025e2 100644
> --- a/arch/arm/mach-s5pv210/clock.c
> +++ b/arch/arm/mach-s5pv210/clock.c
> @@ -174,6 +174,17 @@ static int s5pv210_clk_mask1_ctrl(struct clk *clk,
int
> enable)
>  	return s5p_gatectrl(S5P_CLK_SRC_MASK1, clk, enable);
>  }
> 
> +static int exynos4_clk_hdmiphy_ctrl(struct clk *clk, int enable)
> +{
> +	return s5p_gatectrl(S5P_HDMI_PHY_CONTROL, clk, enable);
> +}
> +
> +static int exynos4_clk_dac_ctrl(struct clk *clk, int enable)
> +{
> +	return s5p_gatectrl(S5P_DAC_PHY_CONTROL, clk, enable);
> +}
> +
> +

Just 1 empty line is enough...

>  static struct clk clk_sclk_hdmi27m = {
>  	.name		= "sclk_hdmi27m",
>  	.rate		= 27000000,
> @@ -330,6 +341,40 @@ static struct clk init_clocks_off[] = {
>  		.enable		= s5pv210_clk_ip0_ctrl,
>  		.ctrlbit	= (1 << 16),
>  	}, {
> +		.name		= "dac",
> +		.devname	= "s5p-sdo",
> +		.parent		= &clk_hclk_dsys.clk,
> +		.enable		= s5pv210_clk_ip1_ctrl,
> +		.ctrlbit	= (1 << 10),
> +	}, {
> +		.name		= "mixer",
> +		.devname	= "s5p-mixer",
> +		.parent		= &clk_hclk_dsys.clk,
> +		.enable		= s5pv210_clk_ip1_ctrl,
> +		.ctrlbit	= (1 << 9),
> +	}, {
> +		.name		= "vp",
> +		.devname	= "s5p-mixer",
> +		.parent		= &clk_hclk_dsys.clk,
> +		.enable		= s5pv210_clk_ip1_ctrl,
> +		.ctrlbit	= (1 << 8),
> +	}, {
> +		.name		= "hdmi",
> +		.devname	= "s5pv210-hdmi",
> +		.parent		= &clk_hclk_dsys.clk,
> +		.enable		= s5pv210_clk_ip1_ctrl,
> +		.ctrlbit	= (1 << 11),
> +	}, {
> +		.name		= "hdmiphy",
> +		.devname	= "s5pv210-hdmi",
> +		.enable		= exynos4_clk_hdmiphy_ctrl,
> +		.ctrlbit	= (1 << 0),
> +	}, {
> +		.name		= "dacphy",
> +		.devname	= "s5p-sdo",
> +		.enable		= exynos4_clk_dac_ctrl,
> +		.ctrlbit	= (1 << 0),
> +	}, {
>  		.name		= "otg",
>  		.parent		= &clk_hclk_psys.clk,
>  		.enable		= s5pv210_clk_ip1_ctrl,
> @@ -600,6 +645,26 @@ static struct clksrc_sources clkset_sclk_mixer = {
>  	.nr_sources	= ARRAY_SIZE(clkset_sclk_mixer_list),
>  };
> 
> +static struct clksrc_clk clk_sclk_mixer = {
> +	.clk		= {
> +		.name		= "sclk_mixer",
> +		.enable		= s5pv210_clk_mask0_ctrl,
> +		.ctrlbit	= (1 << 1),
> +	},
> +	.sources = &clkset_sclk_mixer,
> +	.reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 },
> +};
> +
> +static struct clksrc_clk *sclk_tv[] = {
> +	&clk_sclk_dac,
> +	&clk_sclk_pixel,
> +	&clk_sclk_hdmi,
> +	&clk_sclk_mixer,
> +	NULL,
> +};
> +
> +/* -------------------------------------------- */

?

> +
>  static struct clk *clkset_sclk_audio0_list[] = {
>  	[0] = &clk_ext_xtal_mux,
>  	[1] = &clk_pcmcdclk0,
> @@ -783,14 +848,6 @@ static struct clksrc_clk clksrcs[] = {
>  		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 28, .size = 4 },
>  	}, {
>  		.clk	= {
> -			.name		= "sclk_mixer",
> -			.enable		= s5pv210_clk_mask0_ctrl,
> -			.ctrlbit	= (1 << 1),
> -		},
> -		.sources = &clkset_sclk_mixer,
> -		.reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 },
> -	}, {
> -		.clk	= {
>  			.name		= "sclk_fimc",
>  			.devname	= "s5pv210-fimc.0",
>  			.enable		= s5pv210_clk_mask1_ctrl,
> @@ -981,9 +1038,6 @@ static struct clksrc_clk *sysclks[] = {
>  	&clk_pclk_psys,
>  	&clk_vpllsrc,
>  	&clk_sclk_vpll,
> -	&clk_sclk_dac,
> -	&clk_sclk_pixel,
> -	&clk_sclk_hdmi,
>  	&clk_mout_dmc0,
>  	&clk_sclk_dmc0,
>  	&clk_sclk_audio0,
> @@ -1068,6 +1122,81 @@ static struct clk_ops s5pv210_epll_ops = {
>  	.get_rate = s5p_epll_get_rate,
>  };
> 
> +struct vpll_div_data {
> +	u32 rate;
> +	u32 pdiv;
> +	u32 mdiv;
> +	u32 sdiv;
> +	u32 k;
> +	u32 mfr;
> +	u32 mrr;
> +	u32 vsel;
> +
> +};
> +
> +static struct vpll_div_data vpll_div[] = {
> +	{  54000000, 3, 53, 3, 1024, 0, 17, 0 },
> +	{ 108000000, 3, 53, 2, 1024, 0, 17, 0 },

Basically, this can be changed on each board.

> +};
> +
> +static unsigned long s5pv210_vpll_get_rate(struct clk *clk)

How about following in arch/arm/plat-s5p/clock.c ?

unsigned long s5p_vpll_get_rate(struct clk *clk)
{
	return clk->rate;
}

> +{
> +	return clk->rate;
> +}
> +
> +static int s5pv210_vpll_set_rate(struct clk *clk, unsigned long rate)

Would be better if this function could be used on other SoC which has
PLL90XX.

> +{
> +	unsigned int vpll_con0, vpll_con1;
> +	unsigned int i;
> +
> +	/* Return if nothing changed */
> +	if (clk->rate == rate)
> +		return 0;
> +
> +	vpll_con0 = __raw_readl(S5P_VPLL_CON0);
> +	vpll_con0 &= ~(0x1 << 27 |					\
> +			PLL90XX_MDIV_MASK << PLL90XX_MDIV_SHIFT |	\
> +			PLL90XX_PDIV_MASK << PLL90XX_PDIV_SHIFT |	\
> +			PLL90XX_SDIV_MASK << PLL90XX_SDIV_SHIFT);
> +
> +	vpll_con1 = __raw_readl(S5P_VPLL_CON1);
> +	vpll_con1 &= ~(0x1f << 24 |	\
> +			0x3f << 16 |	\
> +			0xfff << 0);
> +
> +	for (i = 0; i < ARRAY_SIZE(vpll_div); i++) {
> +		if (vpll_div[i].rate == rate) {
> +			vpll_con0 |= vpll_div[i].vsel << 27;
> +			vpll_con0 |= vpll_div[i].pdiv << PLL90XX_PDIV_SHIFT;
> +			vpll_con0 |= vpll_div[i].mdiv << PLL90XX_MDIV_SHIFT;
> +			vpll_con0 |= vpll_div[i].sdiv << PLL90XX_SDIV_SHIFT;
> +
> +			vpll_con1 |= vpll_div[i].mrr << 24;
> +			vpll_con1 |= vpll_div[i].mfr << 16;
> +			vpll_con1 |= vpll_div[i].k << 0;
> +			break;
> +		}
> +	}
> +
> +	if (i == ARRAY_SIZE(vpll_div)) {
> +		printk(KERN_ERR "%s: Invalid Clock VPLL Frequency\n",
> +				__func__);
> +		return -EINVAL;
> +	}
> +
> +	__raw_writel(vpll_con0, S5P_VPLL_CON0);
> +	__raw_writel(vpll_con1, S5P_VPLL_CON1);
> +

Need to add check PLL locking here.

> +	clk->rate = rate;
> +
> +	return 0;
> +}
> +
> +static struct clk_ops s5pv210_vpll_ops = {
> +	.get_rate = s5pv210_vpll_get_rate,
> +	.set_rate = s5pv210_vpll_set_rate,
> +};
> +
>  void __init_or_cpufreq s5pv210_setup_clocks(void)
>  {
>  	struct clk *xtal_clk;
> @@ -1116,6 +1245,7 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
>  	clk_fout_apll.ops = &clk_fout_apll_ops;
>  	clk_fout_mpll.rate = mpll;
>  	clk_fout_epll.rate = epll;
> +	clk_fout_vpll.ops = &s5pv210_vpll_ops;
>  	clk_fout_vpll.rate = vpll;
> 
>  	printk(KERN_INFO "S5PV210: PLL settings, A=%ld, M=%ld, E=%ld
> V=%ld",
> @@ -1161,6 +1291,10 @@ void __init s5pv210_register_clocks(void)
>  	for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
>  		s3c_register_clksrc(sysclks[ptr], 1);
> 
> +	/* register TV clocks */
> +	for (ptr = 0; sclk_tv[ptr]; ++ptr)
> +		s3c_register_clksrc(sclk_tv[ptr], 1);
> +


>  	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
>  	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
> 
> diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
> index 2b3fa1d..3096351 100644
> --- a/arch/arm/mach-s5pv210/cpu.c
> +++ b/arch/arm/mach-s5pv210/cpu.c
> @@ -41,6 +41,7 @@
>  #include <plat/keypad-core.h>
>  #include <plat/sdhci.h>
>  #include <plat/reset.h>
> +#include <plat/tv-core.h>
> 
>  /* Initial IO mappings */
> 
> @@ -144,6 +145,9 @@ void __init s5pv210_map_io(void)
> 
>  	/* Use s5pv210-keypad instead of samsung-keypad */
>  	samsung_keypad_setname("s5pv210-keypad");
> +
> +	/* setup TV devices */
> +	s5p_hdmi_setname("s5pv210-hdmi");
>  }
> 
>  void __init s5pv210_init_clocks(int xtal)
> diff --git a/arch/arm/mach-s5pv210/include/mach/irqs.h b/arch/arm/mach-
> s5pv210/include/mach/irqs.h
> index b9f9ec3..b724d1e 100644
> --- a/arch/arm/mach-s5pv210/include/mach/irqs.h
> +++ b/arch/arm/mach-s5pv210/include/mach/irqs.h
> @@ -86,7 +86,7 @@
>  #define IRQ_HDMI		S5P_IRQ_VIC2(12)
>  #define IRQ_IIC1		S5P_IRQ_VIC2(13)
>  #define IRQ_MFC			S5P_IRQ_VIC2(14)
> -#define IRQ_TVENC		S5P_IRQ_VIC2(15)
> +#define IRQ_SDO			S5P_IRQ_VIC2(15)
>  #define IRQ_I2S0		S5P_IRQ_VIC2(16)
>  #define IRQ_I2S1		S5P_IRQ_VIC2(17)
>  #define IRQ_I2S2		S5P_IRQ_VIC2(18)
> diff --git a/arch/arm/mach-s5pv210/include/mach/map.h b/arch/arm/mach-
> s5pv210/include/mach/map.h
> index bb405b3..1f2f3aa 100644
> --- a/arch/arm/mach-s5pv210/include/mach/map.h
> +++ b/arch/arm/mach-s5pv210/include/mach/map.h
> @@ -91,6 +91,12 @@
>  #define S5PV210_PA_FIMC1		0xFB300000
>  #define S5PV210_PA_FIMC2		0xFB400000
> 
> +/* TV devices */
> +#define S5PV210_PA_SDO			0xF9000000
> +#define S5PV210_PA_VP			0xF9100000
> +#define S5PV210_PA_MIXER		0xF9200000
> +#define S5PV210_PA_HDMI			0xFA100000
> +
>  /* Compatibiltiy Defines */
> 
>  #define S3C_PA_FB			S5PV210_PA_FB
> @@ -112,6 +118,16 @@
>  #define S5P_PA_FIMC2			S5PV210_PA_FIMC2
>  #define S5P_PA_MIPI_CSIS0		S5PV210_PA_MIPI_CSIS
>  #define S5P_PA_MFC			S5PV210_PA_MFC
> +
> +#define S5P_PA_SDO			S5PV210_PA_SDO
> +#define S5P_SZ_SDO			SZ_64K

Don't define SZ_XXX here, if SZ_XX is needed, just use it.

> +#define S5P_PA_VP			S5PV210_PA_VP
> +#define S5P_SZ_VP			SZ_64K

Same as above.

> +#define S5P_PA_MIXER			S5PV210_PA_MIXER
> +#define S5P_SZ_MIXER			SZ_64K

Same.

> +#define S5P_PA_HDMI			S5PV210_PA_HDMI
> +#define S5P_SZ_HDMI			SZ_1M

Same.

> +
>  #define S5P_PA_ONENAND			S5PC110_PA_ONENAND
>  #define S5P_PA_ONENAND_DMA
> 	S5PC110_PA_ONENAND_DMA
>  #define S5P_PA_SDRAM			S5PV210_PA_SDRAM
> diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
b/arch/arm/mach-
> s5pv210/include/mach/regs-clock.h
> index 78925c5..69c16f9 100644
> --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> +++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
> @@ -26,7 +26,9 @@
>  #define S5P_MPLL_CON		S5P_CLKREG(0x108)
>  #define S5P_EPLL_CON		S5P_CLKREG(0x110)
>  #define S5P_EPLL_CON1		S5P_CLKREG(0x114)
> -#define S5P_VPLL_CON		S5P_CLKREG(0x120)
> +#define S5P_VPLL_CON0		S5P_CLKREG(0x120)
> +#define S5P_VPLL_CON		S5P_VPLL_CON0
> +#define S5P_VPLL_CON1		S5P_CLKREG(0x120)
> 
>  #define S5P_CLK_SRC0		S5P_CLKREG(0x200)
>  #define S5P_CLK_SRC1		S5P_CLKREG(0x204)
> @@ -144,8 +146,9 @@
> 
>  #define S5P_OTHERS		S5P_CLKREG(0xE000)
>  #define S5P_OM_STAT		S5P_CLKREG(0xE100)
> +#define S5P_HDMI_PHY_CONTROL	S5P_CLKREG(0xE804)
>  #define S5P_USB_PHY_CONTROL	S5P_CLKREG(0xE80C)
> -#define S5P_DAC_CONTROL		S5P_CLKREG(0xE810)
> +#define S5P_DAC_PHY_CONTROL	S5P_CLKREG(0xE810)
>  #define S5P_MIPI_DPHY_CONTROL(x) S5P_CLKREG(0xE814)
>  #define S5P_MIPI_DPHY_ENABLE	(1 << 0)
>  #define S5P_MIPI_DPHY_SRESETN	(1 << 1)
> --
> 1.7.1.569.g6f426



Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.


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