lkml.org 
[lkml]   [2016]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 1/2] clk: hi6220: Change syspll and media_syspll clk to 1.19GHz
Date
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
\
 
 \ /
  Last update: 2016-06-29 11:21    [W:0.058 / U:4.856 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site