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Groups > linux.kernel > #1432773
| From | Guodong Xu <guodong.xu@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/2] clk: hi6220: Change syspll and media_syspll clk to 1.19GHz |
| Date | 2016-06-28 12:40 +0200 |
| Message-ID | <rOYAW-5IE-59@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
From: Xinliang Liu <xinliang.liu@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@60Hz HDMI
(74.25MHz required by standards). Closer pixel clock means better
compatibility to HDMI monitors.
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
---
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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[PATCH 1/2] clk: hi6220: Change syspll and media_syspll clk to 1.19GHz Guodong Xu <guodong.xu@linaro.org> - 2016-06-28 12:40 +0200
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