commit e3fe050c3ece110435e2dc19c4350bdd3c941866
author Peng Fan <peng.fan@nxp.com> Fri Apr 28 12:08:29 2023 +0800
committer Stefano Babic <sbabic@denx.de> Sun May 21 16:54:40 2023 +0200
tree 0392b1f3bc981dd678ca4379083f87556c961162
parent 0c2f368effd65917193467da3a702a5ddc6cdcae

imx9: clock: clear HW_CTRL_SEL

The HW_CTRL_SEL should be cleared when configuring PLL to avoid
potential glitch

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

arch/arm/mach-imx/imx9/clock.c

diff --git a/arch/arm/mach-imx/imx9/clock.c b/arch/arm/mach-imx/imx9/clock.c
index a5f95fb..38e4cbb 100644
--- a/arch/arm/mach-imx/imx9/clock.c
+++ b/arch/arm/mach-imx/imx9/clock.c
@@ -206,6 +206,9 @@
 		return -EPERM;
 	}
 
+	/* Clear PLL HW CTRL SEL */
+	setbits_le32(&reg->ctrl.reg_clr, PLL_CTRL_HW_CTRL_SEL);
+
 	/* Bypass the PLL to ref */
 	writel(PLL_CTRL_CLKMUX_BYPASS, &reg->ctrl.reg_set);