Merge tag 'mediatek-drm-next-6.15-v2' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next

Mediatek DRM Next for Linux 6.15

1. HDMI fixup and refinement
2. Move to devm_platform_ioremap_resource() usage
3. Add MT8188 dsc compatible
4. Fix config_updating flag never false when no mbox channel
5. dp: drm_err => dev_err in HPD path to avoid NULL ptr
6. Add dpi power-domains example
7. Add MT8365 SoC support
8. Fix error codes in mtk_dsi_host_transfer()

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250312232909.9304-1-chunkuang.hu@kernel.org

Author: airlied

Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml

@@ -27,6 +27,7 @@ properties:
           - mediatek,mt8188-dp-intf
           - mediatek,mt8192-dpi
           - mediatek,mt8195-dp-intf
+          - mediatek,mt8195-dpi
       - items:
           - enum:
               - mediatek,mt6795-dpi
@@ -35,6 +36,10 @@ properties:
           - enum:
               - mediatek,mt8365-dpi
           - const: mediatek,mt8192-dpi
+      - items:
+          - enum:
+              - mediatek,mt8188-dpi
+          - const: mediatek,mt8195-dpi
 
   reg:
     maxItems: 1
@@ -116,11 +121,13 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/power/mt8173-power.h>
 
     dpi: dpi@1401d000 {
         compatible = "mediatek,mt8173-dpi";
         reg = <0x1401d000 0x1000>;
         interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+        power-domains = <&spm MT8173_POWER_DOMAIN_MM>;
         clocks = <&mmsys CLK_MM_DPI_PIXEL>,
              <&mmsys CLK_MM_DPI_ENGINE>,
              <&apmixedsys CLK_APMIXED_TVDPLL>;

Documentation/devicetree/bindings/display/mediatek/mediatek,dsc.yaml

@@ -22,6 +22,9 @@ properties:
     oneOf:
       - enum:
           - mediatek,mt8195-disp-dsc
+      - items:
+          - const: mediatek,mt8188-disp-dsc
+          - const: mediatek,mt8195-disp-dsc
 
   reg:
     maxItems: 1

drivers/gpu/drm/mediatek/mtk_crtc.c

@@ -620,13 +620,16 @@ static void mtk_crtc_update_config(struct mtk_crtc *mtk_crtc, bool needs_vblank)
 
 		mbox_send_message(mtk_crtc->cmdq_client.chan, cmdq_handle);
 		mbox_client_txdone(mtk_crtc->cmdq_client.chan, 0);
+		goto update_config_out;
 	}
-#else
+#endif
 	spin_lock_irqsave(&mtk_crtc->config_lock, flags);
 	mtk_crtc->config_updating = false;
 	spin_unlock_irqrestore(&mtk_crtc->config_lock, flags);
-#endif
 
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+update_config_out:
+#endif
 	mutex_unlock(&mtk_crtc->hw_lock);
 }
 

drivers/gpu/drm/mediatek/mtk_dp.c

@@ -1766,7 +1766,7 @@ static int mtk_dp_parse_capabilities(struct mtk_dp *mtk_dp)
 
 	ret = drm_dp_dpcd_readb(&mtk_dp->aux, DP_MSTM_CAP, &val);
 	if (ret < 1) {
-		drm_err(mtk_dp->drm_dev, "Read mstm cap failed\n");
+		dev_err(mtk_dp->dev, "Read mstm cap failed: %zd\n", ret);
 		return ret == 0 ? -EIO : ret;
 	}
 
@@ -1776,7 +1776,7 @@ static int mtk_dp_parse_capabilities(struct mtk_dp *mtk_dp)
 					DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0,
 					&val);
 		if (ret < 1) {
-			drm_err(mtk_dp->drm_dev, "Read irq vector failed\n");
+			dev_err(mtk_dp->dev, "Read irq vector failed: %zd\n", ret);
 			return ret == 0 ? -EIO : ret;
 		}
 
@@ -2059,7 +2059,7 @@ static int mtk_dp_wait_hpd_asserted(struct drm_dp_aux *mtk_aux, unsigned long wa
 
 	ret = mtk_dp_parse_capabilities(mtk_dp);
 	if (ret) {
-		drm_err(mtk_dp->drm_dev, "Can't parse capabilities\n");
+		dev_err(mtk_dp->dev, "Can't parse capabilities: %d\n", ret);
 		return ret;
 	}