phy: marvell: a3700: Fix configuring polarity invert bits

phy_txd_inv or phy_rxd_inv needs to be set only in case when
appropriate polarity is inverted. Otherwise these bits should be
cleared.

Same change was included in TF-A project:
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/9406

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/drivers/phy/marvell/comphy_a3700.c b/drivers/phy/marvell/comphy_a3700.c
index 504f4b2..69cd63e 100644 (file)
--- a/drivers/phy/marvell/comphy_a3700.c
+++ b/drivers/phy/marvell/comphy_a3700.c
@@ -230,9 +230,13 @@ static int comphy_pcie_power_up(u32 speed, u32 invert)
         */
        if (invert & COMPHY_POLARITY_TXD_INVERT)
                reg_set16(phy_addr(PCIE, SYNC_PATTERN), phy_txd_inv, 0);
+       else
+               reg_set16(phy_addr(PCIE, SYNC_PATTERN), 0, phy_txd_inv);
 
        if (invert & COMPHY_POLARITY_RXD_INVERT)
                reg_set16(phy_addr(PCIE, SYNC_PATTERN), phy_rxd_inv, 0);
+       else
+               reg_set16(phy_addr(PCIE, SYNC_PATTERN), 0, phy_rxd_inv);
 
        /*
         * 11. Release SW reset
@@ -467,9 +471,13 @@ static int comphy_usb3_power_up(u32 lane, u32 type, u32 speed, u32 invert)
         */
        if (invert & COMPHY_POLARITY_TXD_INVERT)
                usb3_reg_set16(SYNC_PATTERN, phy_txd_inv, 0, lane);
+       else
+               usb3_reg_set16(SYNC_PATTERN, 0, phy_txd_inv, lane);
 
        if (invert & COMPHY_POLARITY_RXD_INVERT)
                usb3_reg_set16(SYNC_PATTERN, phy_rxd_inv, 0, lane);
+       else
+               usb3_reg_set16(SYNC_PATTERN, 0, phy_rxd_inv, lane);
 
        /*
         * 10. Set max speed generation to USB3.0 5Gbps
@@ -839,9 +847,13 @@ static int comphy_sgmii_power_up(u32 lane, u32 speed, u32 invert)
         */
        if (invert & COMPHY_POLARITY_TXD_INVERT)
                reg_set16(sgmiiphy_addr(lane, SYNC_PATTERN), phy_txd_inv, 0);
+       else
+               reg_set16(sgmiiphy_addr(lane, SYNC_PATTERN), 0, phy_txd_inv);
 
        if (invert & COMPHY_POLARITY_RXD_INVERT)
                reg_set16(sgmiiphy_addr(lane, SYNC_PATTERN), phy_rxd_inv, 0);
+       else
+               reg_set16(sgmiiphy_addr(lane, SYNC_PATTERN), 0, phy_rxd_inv);
 
        /*
         * 19. Set PHY input ports PIN_PU_PLL, PIN_PU_TX and PIN_PU_RX to 1