linux-kernel - [PATCH 4.14 140/164] clk: hi3660: fix incorrect uart3 clock freqency

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Date:   Tue, 12 Dec 2017 13:45:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Zhong Kaihua <zhongkaihua@...wei.com>,
        Guodong Xu <guodong.xu@...aro.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 140/164] clk: hi3660: fix incorrect uart3 clock freqency

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhong Kaihua <zhongkaihua@...wei.com>


[ Upstream commit d33fb1b9f0fcb67f2b9f8b1891465a088a9480f8 ]

UART3 clock rate is doubled in previous commit.

This error is not detected until recently a mezzanine board which makes
real use of uart3 port (through LS connector of 96boards) was setup
and tested on hi3660-hikey960 board.

This patch changes clock source rate of clk_factor_uart3 to 100000000.

Signed-off-by: Zhong Kaihua <zhongkaihua@...wei.com>
Signed-off-by: Guodong Xu <guodong.xu@...aro.org>
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/clk/hisilicon/clk-hi3660.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/hisilicon/clk-hi3660.c
+++ b/drivers/clk/hisilicon/clk-hi3660.c
@@ -34,7 +34,7 @@ static const struct hisi_fixed_rate_cloc
 
 /* crgctrl */
 static const struct hisi_fixed_factor_clock hi3660_crg_fixed_factor_clks[] = {
-	{ HI3660_FACTOR_UART3, "clk_factor_uart3", "iomcu_peri0", 1, 8, 0, },
+	{ HI3660_FACTOR_UART3, "clk_factor_uart3", "iomcu_peri0", 1, 16, 0, },
 	{ HI3660_CLK_FACTOR_MMC, "clk_factor_mmc", "clkin_sys", 1, 6, 0, },
 	{ HI3660_CLK_GATE_I2C0, "clk_gate_i2c0", "clk_i2c0_iomcu", 1, 4, 0, },
 	{ HI3660_CLK_GATE_I2C1, "clk_gate_i2c1", "clk_i2c1_iomcu", 1, 4, 0, },