drm/msm: mdss: add support for SM8550

Add support for the MDSS block on SM8550 platform.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/517516/
Link: https://lore.kernel.org/r/20230103-topic-sm8550-upstream-mdss-dsi-v3-5-660c3bcb127f@linaro.orgSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/msm/msm_mdss.c

@@ -297,6 +297,7 @@ static int msm_mdss_enable(struct msm_mdss *msm_mdss)
 		msm_mdss_setup_ubwc_dec_40(msm_mdss, UBWC_4_0, 6, 1, 2, 1);
 		break;
 	case DPU_HW_VER_810:
+	case DPU_HW_VER_900:
 		/* TODO: highest_bank_bit = 2 for LP_DDR4 */
 		msm_mdss_setup_ubwc_dec_40(msm_mdss, UBWC_4_0, 6, 1, 3, 1);
 		break;
@@ -532,6 +533,7 @@ static const struct of_device_id mdss_dt_match[] = {
 	{ .compatible = "qcom,sm8250-mdss" },
 	{ .compatible = "qcom,sm8350-mdss" },
 	{ .compatible = "qcom,sm8450-mdss" },
+	{ .compatible = "qcom,sm8550-mdss" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, mdss_dt_match);