[PATCH 2/4] phy: qualcomm: phy-qcom-eusb2-repeater: Support tune-res-fsdif prop

[Luca Weiss]

Support reading the FS Differential TX Output Resistance Tuning from
devicetree and writing the register, as required on some boards.

Signed-off-by: Luca Weiss <luca.we...@fairphone.com>
---
 drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c 
b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
index 
d7493c2294ef23e37e484019a49ddf7b3d6a6a46..61594739e5b12706775622e1f76af6ad5d2d29bf
 100644
--- a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
+++ b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
@@ -136,6 +136,9 @@ static int eusb2_repeater_init(struct phy *phy)
        if (!of_property_read_u8(np, "qcom,tune-usb2-preem", &val))
                regmap_write(regmap, base + EUSB2_TUNE_IUSB2, val);
 
+       if (!of_property_read_u8(np, "qcom,tune-res-fsdif", &val))
+               regmap_write(regmap, base + EUSB2_TUNE_RES_FSDIF, val);
+
        /* Wait for status OK */
        ret = regmap_read_poll_timeout(regmap, base + EUSB2_RPTR_STATUS, 
poll_val,
                                       poll_val & RPTR_OK, 10, 5);

-- 
2.50.0