PHY_TESTCLR
dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLR);
dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_TESTCLR);
dsi_reg_up(ctx, PHY_TST_CTRL0, PHY_TESTCLR, 0);
dsi_reg_up(ctx, PHY_TST_CTRL0, PHY_TESTCLR, PHY_TESTCLR);
dsi_reg_up(ctx, PHY_TST_CTRL0, PHY_TESTCLR, 0);
writel(PHY_TESTCLR, csi2->base + CSI2_PHY_TST_CTRL0);