[PATCH 2/3] ARM: EXYNOS: Add clkdev lookup entry for lcd clock

Tushar Behera tushar.behera at linaro.org
Wed Feb 29 05:45:12 UTC 2012


Hi Kukjin,

On 12/01/2011 11:20 AM, Tushar Behera wrote:
> The framebuffer driver needs the clock named 'lcd' as its bus
> clock but the equivalent clock on Exynos4 is named as 'fimd'.
> Hence, create a clkdev lookup entry with the name 'lcd' that
> references the 'fimd' clock.
> 
> Signed-off-by: Tushar Behera <tushar.behera at linaro.org>
> ---
>  arch/arm/mach-exynos/clock.c |   14 +++++++++-----
>  1 files changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c
> index 5d8d483..607ec28 100644
> --- a/arch/arm/mach-exynos/clock.c
> +++ b/arch/arm/mach-exynos/clock.c
> @@ -489,11 +489,6 @@ static struct clk init_clocks_off[] = {
>  		.enable		= exynos4_clk_ip_cam_ctrl,
>  		.ctrlbit	= (1 << 3),
>  	}, {
> -		.name		= "fimd",
> -		.devname	= "exynos4-fb.0",
> -		.enable		= exynos4_clk_ip_lcd0_ctrl,
> -		.ctrlbit	= (1 << 0),
> -	}, {
>  		.name		= "hsmmc",
>  		.devname	= "s3c-sdhci.0",
>  		.parent		= &clk_aclk_133.clk,
> @@ -782,6 +777,13 @@ static struct clk clk_pdma1 = {
>  	.ctrlbit	= (1 << 1),
>  };
>  
> +static struct clk clk_fimd0 = {
> +	.name		= "fimd",
> +	.devname	= "exynos4-fb.0",
> +	.enable		= exynos4_clk_ip_lcd0_ctrl,
> +	.ctrlbit	= (1 << 0),
> +};
> +
>  struct clk *clkset_group_list[] = {
>  	[0] = &clk_ext_xtal_mux,
>  	[1] = &clk_xusbxti,
> @@ -1294,6 +1296,7 @@ static struct clksrc_clk *sysclks[] = {
>  static struct clk *clk_cdev[] = {
>  	&clk_pdma0,
>  	&clk_pdma1,
> +	&clk_fimd0,
>  };
>  
>  static struct clksrc_clk *clksrc_cdev[] = {
> @@ -1318,6 +1321,7 @@ static struct clk_lookup exynos4_clk_lookup[] = {
>  	CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &clk_sclk_mmc3.clk),
>  	CLKDEV_INIT("dma-pl330.0", "apb_pclk", &clk_pdma0),
>  	CLKDEV_INIT("dma-pl330.1", "apb_pclk", &clk_pdma1),
> +	CLKDEV_INIT("exynos4-fb.0", "lcd", &clk_fimd0),
>  };
>  
>  static int xtal_rate;

Would you please review this patch and let me know your opinion? Without
this patch, frame-buffer support on EXYNOS4 is broken.

-- 
Tushar Behera



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