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Message-Id: <20200331104532.12698-1-chunyan.zhang@unisoc.com>
Date: Tue, 31 Mar 2020 18:45:32 +0800
From: Chunyan Zhang <zhang.lyra@...il.com>
To: Stephen Boyd <sboyd@...nel.org>,
Michael Turquette <mturquette@...libre.com>
Cc: linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
Orson Zhai <orsonzhai@...il.com>,
Baolin Wang <baolin.wang7@...il.com>,
Chunyan Zhang <zhang.lyra@...il.com>,
Chunyan Zhang <chunyan.zhang@...soc.com>
Subject: [PATCH] clk: sprd: don't gate uart console clock
Don't gate uart1_eb which provides console clock, gating that clock would
make serial stop working if serial driver didn't enable that explicitly.
Signed-off-by: Chunyan Zhang <chunyan.zhang@...soc.com>
---
drivers/clk/sprd/sc9863a-clk.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/sprd/sc9863a-clk.c b/drivers/clk/sprd/sc9863a-clk.c
index 24f064262814..6c6ac158ef61 100644
--- a/drivers/clk/sprd/sc9863a-clk.c
+++ b/drivers/clk/sprd/sc9863a-clk.c
@@ -1671,8 +1671,9 @@ static SPRD_SC_GATE_CLK_FW_NAME(i2c4_eb, "i2c4-eb", "ext-26m", 0x0,
0x1000, BIT(12), 0, 0);
static SPRD_SC_GATE_CLK_FW_NAME(uart0_eb, "uart0-eb", "ext-26m", 0x0,
0x1000, BIT(13), 0, 0);
+/* uart1_eb is for console, don't gate even if unused */
static SPRD_SC_GATE_CLK_FW_NAME(uart1_eb, "uart1-eb", "ext-26m", 0x0,
- 0x1000, BIT(14), 0, 0);
+ 0x1000, BIT(14), CLK_IGNORE_UNUSED, 0);
static SPRD_SC_GATE_CLK_FW_NAME(uart2_eb, "uart2-eb", "ext-26m", 0x0,
0x1000, BIT(15), 0, 0);
static SPRD_SC_GATE_CLK_FW_NAME(uart3_eb, "uart3-eb", "ext-26m", 0x0,
--
2.20.1
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