[PATCH v5 2/8] phy: sun4i-usb: change PHYCTL register clearing code

Icenowy Zheng icenowy at aosc.xyz
Sat Mar 25 07:50:09 PDT 2017


It seems that all SoCs with the PHYCTL register offset as 0x10 need the
PHYCTL register to be cleared before it's written.

Change PHYCTL register clearing code to judge whether clearing is needed
based on the PHYCTL offset.

Signed-off-by: Icenowy Zheng <icenowy at aosc.xyz>
---
Changes in v5:
- Commit message fix.

 drivers/phy/phy-sun4i-usb.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index a21b5f24a340..62b4d25448c6 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -188,10 +188,8 @@ static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
 
 	spin_lock_irqsave(&phy_data->reg_lock, flags);
 
-	if (phy_data->cfg->type == sun8i_a33_phy ||
-	    phy_data->cfg->type == sun50i_a64_phy ||
-	    phy_data->cfg->type == sun8i_v3s_phy) {
-		/* A33 or A64 needs us to set phyctl to 0 explicitly */
+	if (phy_data->cfg->phyctl_offset == REG_PHYCTL_A33) {
+		/* SoCs newer than A33 need us to set phyctl to 0 explicitly */
 		writel(0, phyctl);
 	}
 
-- 
2.12.0




More information about the linux-arm-kernel mailing list