Read from linksystem offset to update the xhci version.
Signed-off-by: Anand Moon <linux.am...@gmail.com>
---
drivers/phy/samsung/phy-exynos5-usbdrd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/phy/samsung/phy-exynos5-usbdrd.c
b/drivers/phy/samsung/phy-exynos5-usbdrd.c
index 646259bee909..3c14bf7718c1 100644
--- a/drivers/phy/samsung/phy-exynos5-usbdrd.c
+++ b/drivers/phy/samsung/phy-exynos5-usbdrd.c
@@ -397,7 +397,8 @@ static int exynos5_usbdrd_phy_init(struct phy *phy)
* Setting the Frame length Adj value[6:1] to default 0x20
* See xHCI 1.0 spec, 5.2.4
*/
- reg = LINKSYSTEM_XHCI_VERSION_CONTROL |
+ reg = readl(phy_drd->reg_phy + EXYNOS5_DRD_LINKSYSTEM);
+ reg |= LINKSYSTEM_XHCI_VERSION_CONTROL |
LINKSYSTEM_FLADJ(0x20);
writel(reg, phy_drd->reg_phy + EXYNOS5_DRD_LINKSYSTEM);
--
2.22.0
