linux-kernel - [PATCH 5.4 409/434] clk: imx: pll14xx: fix clk_pll14xx_wait

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Date:   Sun, 29 Dec 2019 18:27:42 +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, Abel Vesa <abel.vesa@....com>,
        Peng Fan <peng.fan@....com>, Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH 5.4 409/434] clk: imx: pll14xx: fix clk_pll14xx_wait_lock

From: Peng Fan <peng.fan@....com>

commit c3a5fd15ed0c1494435e4e35fbee734ae46b5073 upstream.

The usage of readl_poll_timeout is wrong, the 3rd parameter(cond)
should be "val & LOCK_STATUS" not "val & LOCK_TIMEOUT_US",
It is not check whether the pll locked, LOCK_STATUS reflects the mask,
not LOCK_TIMEOUT_US.

Fixes: 8646d4dcc7fb ("clk: imx: Add PLLs driver for imx8mm soc")
Cc: <stable@...r.kernel.org>
Reviewed-by: Abel Vesa <abel.vesa@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/clk/imx/clk-pll14xx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/imx/clk-pll14xx.c
+++ b/drivers/clk/imx/clk-pll14xx.c
@@ -153,7 +153,7 @@ static int clk_pll14xx_wait_lock(struct
 {
 	u32 val;
 
-	return readl_poll_timeout(pll->base, val, val & LOCK_TIMEOUT_US, 0,
+	return readl_poll_timeout(pll->base, val, val & LOCK_STATUS, 0,
 			LOCK_TIMEOUT_US);
 }