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Message-Id: <1467109902-17625-1-git-send-email-guodong.xu@linaro.org>
Date: Tue, 28 Jun 2016 18:31:41 +0800
From: Guodong Xu <guodong.xu@...aro.org>
To: mturquette@...libre.com, sboyd@...eaurora.org,
jorge.ramirez-ortiz@...aro.org, xinliang.liu@...aro.org,
guodong.xu@...aro.org, john.stultz@...aro.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org
Subject: [PATCH 1/2] clk: hi6220: Change syspll and media_syspll clk to 1.19GHz
From: Xinliang Liu <xinliang.liu@...aro.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@...z HDMI
(74.25MHz required by standards). Closer pixel clock means better
compatibility to HDMI monitors.
Signed-off-by: Guodong Xu <guodong.xu@...aro.org>
Signed-off-by: Xinliang Liu <xinliang.liu@...aro.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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