[PATCH v2 1/2] clk: hi6220: Change syspll and media_syspll clk to 1.19GHz
Michael Turquette
mturquette at baylibre.com
Wed Jul 6 15:23:20 PDT 2016
Quoting Guodong Xu (2016-06-29 01:45:54)
> From: Xinliang Liu <xinliang.liu at linaro.org>
>
> In the bootloader of HiKey/96boards, syspll and media_syspll clk
> was initialized to 1.19GHz. So, here changes it in kernel accordingly.
>
> 1.19GHz was chosen over 1.2GHz because at 1.19GHz we get more precise
> HDMI pixel clock (1.19G/16 = 74.4MHz) for 1280x720p at 60Hz HDMI
> (74.25MHz required by standards). Closer pixel clock means better
> compatibility to HDMI monitors.
>
> Signed-off-by: Guodong Xu <guodong.xu at linaro.org>
> Signed-off-by: Xinliang Liu <xinliang.liu at linaro.org>
Applied.
Regards,
Mike
> ---
> drivers/clk/hisilicon/clk-hi6220.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c
> index f02cb41..a36ffcb 100644
> --- a/drivers/clk/hisilicon/clk-hi6220.c
> +++ b/drivers/clk/hisilicon/clk-hi6220.c
> @@ -34,8 +34,8 @@ static struct hisi_fixed_rate_clock hi6220_fixed_rate_clks[] __initdata = {
> { HI6220_PLL_BBP, "bbppll0", NULL, 0, 245760000, },
> { HI6220_PLL_GPU, "gpupll", NULL, 0, 1000000000,},
> { HI6220_PLL1_DDR, "ddrpll1", NULL, 0, 1066000000,},
> - { HI6220_PLL_SYS, "syspll", NULL, 0, 1200000000,},
> - { HI6220_PLL_SYS_MEDIA, "media_syspll", NULL, 0, 1200000000,},
> + { HI6220_PLL_SYS, "syspll", NULL, 0, 1190400000,},
> + { HI6220_PLL_SYS_MEDIA, "media_syspll", NULL, 0, 1190400000,},
> { HI6220_DDR_SRC, "ddr_sel_src", NULL, 0, 1200000000,},
> { HI6220_PLL_MEDIA, "media_pll", NULL, 0, 1440000000,},
> { HI6220_PLL_DDR, "ddrpll0", NULL, 0, 1600000000,},
> --
> 1.9.1
>
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