From: Leo Yan <leo.yan@linaro.org>
To: Wei Xu <xuwei5@hisilicon.com>, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Zhangfei Gao <zhangfei.gao@linaro.org>,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
Dmitry Shmidt <dimitrysh@google.com>,
Guodong Xu <guodong.xu@linaro.org>,
Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Subject: [PATCH 1/2] clk: hi6220: change watchdog clock source
Date: Tue, 29 Aug 2017 15:58:37 +0800 [thread overview]
Message-ID: <1503993518-24428-1-git-send-email-leo.yan@linaro.org> (raw)
The old code uses tcxo (19.2MHz) as watchdog clock but actually the
watchdog uses 32K clock, as result the watchdog timeout cannot be set
correctly and delay long time to reset SoC.
So this patch is to use 'ref32k' as clock source for watchdog.
Fixes: 72ea48610d43 ("clk: hi6220: Clock driver support for Hisilicon hi6220 SoC")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
drivers/clk/hisilicon/clk-hi6220.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c
index 4181b68..e786d71 100644
--- a/drivers/clk/hisilicon/clk-hi6220.c
+++ b/drivers/clk/hisilicon/clk-hi6220.c
@@ -55,9 +55,9 @@ static struct hisi_fixed_factor_clock hi6220_fixed_factor_clks[] __initdata = {
};
static struct hisi_gate_clock hi6220_separated_gate_clks_ao[] __initdata = {
- { HI6220_WDT0_PCLK, "wdt0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 12, 0, },
- { HI6220_WDT1_PCLK, "wdt1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 13, 0, },
- { HI6220_WDT2_PCLK, "wdt2_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 14, 0, },
+ { HI6220_WDT0_PCLK, "wdt0_pclk", "ref32k", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 12, 0, },
+ { HI6220_WDT1_PCLK, "wdt1_pclk", "ref32k", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 13, 0, },
+ { HI6220_WDT2_PCLK, "wdt2_pclk", "ref32k", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 14, 0, },
{ HI6220_TIMER0_PCLK, "timer0_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 15, 0, },
{ HI6220_TIMER1_PCLK, "timer1_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 16, 0, },
{ HI6220_TIMER2_PCLK, "timer2_pclk", "clk_tcxo", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x630, 17, 0, },
--
2.7.4
next reply other threads:[~2017-08-29 7:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-29 7:58 Leo Yan [this message]
2017-08-29 7:58 ` [PATCH 2/2] arm64: dts: hi6220: enable watchdog Leo Yan
2017-09-01 1:32 ` Stephen Boyd
2017-09-01 10:35 ` Wei Xu
2017-09-01 20:28 ` Stephen Boyd
2017-09-04 9:21 ` Wei Xu
2017-09-01 1:32 ` [PATCH 1/2] clk: hi6220: change watchdog clock source Stephen Boyd
2017-09-01 2:16 ` Leo Yan
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