linux-kernel - [PATCH 5.19 0721/1157] clk: imx93: use adc

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Date:   Mon, 15 Aug 2022 20:01:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Haibo Chen <haibo.chen@....com>,
        Jacky Bai <ping.bai@....com>, Peng Fan <peng.fan@....com>,
        Abel Vesa <abel.vesa@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 0721/1157] clk: imx93: use adc_root as the parent clock of adc1

From: Haibo Chen <haibo.chen@....com>

[ Upstream commit 18d6d8fe4f24938985844d52c481b86fcce9d102 ]

When debug, find after system boot up, all adc register operation
will trigger system hang, this is because the internal adc ipg
clock is gate off. In dts, only reference the IMX93_CLK_ADC1_GATE,
which is adc1, no one touch the adc_root, so adc_root will be gate
off automatically after system boot up.

Fixes: 24defbe194b6 ("clk: imx: add i.MX93 clk")
Signed-off-by: Haibo Chen <haibo.chen@....com>
Signed-off-by: Jacky Bai <ping.bai@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
Reviewed-by: Peng Fan <peng.fan@....com>
Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
Link: https://lore.kernel.org/r/20220609132902.3504651-2-peng.fan@oss.nxp.com
Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/imx/clk-imx93.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-imx93.c b/drivers/clk/imx/clk-imx93.c
index edcc87661d1f..172cd56c9610 100644
--- a/drivers/clk/imx/clk-imx93.c
+++ b/drivers/clk/imx/clk-imx93.c
@@ -150,7 +150,7 @@ static const struct imx93_clk_ccgr {
 	{ IMX93_CLK_A55_GATE,		"a55",		"a55_root",		0x8000, },
 	/* M33 critical clk for system run */
 	{ IMX93_CLK_CM33_GATE,		"cm33",		"m33_root",		0x8040, CLK_IS_CRITICAL },
-	{ IMX93_CLK_ADC1_GATE,		"adc1",		"osc_24m",		0x82c0, },
+	{ IMX93_CLK_ADC1_GATE,		"adc1",		"adc_root",		0x82c0, },
 	{ IMX93_CLK_WDOG1_GATE,		"wdog1",	"osc_24m",		0x8300, },
 	{ IMX93_CLK_WDOG2_GATE,		"wdog2",	"osc_24m",		0x8340, },
 	{ IMX93_CLK_WDOG3_GATE,		"wdog3",	"osc_24m",		0x8380, },
-- 
2.35.1