[PATCH 04/72] ARM: i.MX6: use pll2_pfd0_352m as clock root of ipu_di

[Steve Longerbeam]

On 11/03/2014 04:30 AM, Philipp Zabel wrote:
> Am Freitag, den 31.10.2014, 15:53 -0700 schrieb Steve Longerbeam:
>> AS pll5_video_div has already been used as clock root for ldb_di,
>> so use pll2_pfd0_352m as clock root of ipu_di for HDMI.
>>
>> Signed-off-by: Jiada Wang <jiada_wang at mentor.com>
>> Signed-off-by: Steve Longerbeam <steve_longerbeam at mentor.com>
> What about devices that don't use LVDS? It would be nice to let them use
> PLL5 for HDMI.

Yeah, I agree. Maybe the right approach is to move root PLL selection
into the device tree hdmi and lvds nodes.

Steve

>> ---
>>  arch/arm/mach-imx/clk-imx6q.c |    8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
>> index 4e79da7..86b58fc 100644
>> --- a/arch/arm/mach-imx/clk-imx6q.c
>> +++ b/arch/arm/mach-imx/clk-imx6q.c
>> @@ -483,10 +483,10 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
>>  		clk_set_parent(clk[IMX6QDL_CLK_LDB_DI1_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
>>  	}
>>  
>> -	clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
>> -	clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
>> -	clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
>> -	clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]);
>> +	clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL2_PFD0_352M]);
>> +	clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL2_PFD0_352M]);
>> +	clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL2_PFD0_352M]);
>> +	clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL2_PFD0_352M]);
>>  	clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_SEL], clk[IMX6QDL_CLK_IPU1_DI0_PRE]);
>>  	clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_SEL], clk[IMX6QDL_CLK_IPU1_DI1_PRE]);
>>  	clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_SEL], clk[IMX6QDL_CLK_IPU2_DI0_PRE]);
> regards
> Philipp
>
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Steve Longerbeam | Senior Embedded Engineer, ESD Services
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