From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit 04948e757148f870a31f4887ea2239403f516c3c upstream.
Commit fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate
PCS_USB region") started treating the PCS_USB registers as potentially
separate from the PCS registers but used the wrong base when no PCS_USB
offset has been provided.
Fix the PCS_USB base used at runtime resume to prevent dereferencing a
NULL pointer on platforms that do not provide a PCS_USB offset (e.g.
SC7180).
Fixes: fc64623637da ("phy: qcom-qmp-combo,usb: add support for separate PCS_USB region")
Cc: stable@xxxxxxxxxxxxxxx # 5.20
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Andrew Halaney <ahalaney@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221026162116.26462-1-johan+linaro@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -1914,7 +1914,7 @@ static void qcom_qmp_phy_combo_enable_au
static void qcom_qmp_phy_combo_disable_autonomous_mode(struct qmp_phy *qphy)
{
const struct qmp_phy_cfg *cfg = qphy->cfg;
- void __iomem *pcs_usb = qphy->pcs_usb ?: qphy->pcs_usb;
+ void __iomem *pcs_usb = qphy->pcs_usb ?: qphy->pcs;
void __iomem *pcs_misc = qphy->pcs_misc;
/* Disable i/o clamp_n on resume for normal mode */
