Merge tag 'drm-xilinx-dpsub-20210809' of git://linuxtv.org/pinchartl/media into drm-next

- Miscellaneous fixes in ZynqMP DPSUB driver
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YRCSRZZV1HZYPvaG@pendragon.ideasonboard.com

drivers/gpu/drm/xlnx/Kconfig

@@ -3,6 +3,8 @@ config DRM_ZYNQMP_DPSUB
 	depends on ARCH_ZYNQMP || COMPILE_TEST
 	depends on COMMON_CLK && DRM && OF
 	depends on DMADEVICES
+	depends on PHY_XILINX_ZYNQMP
+	depends on XILINX_ZYNQMP_DPDMA
 	select DMA_ENGINE
 	select DRM_GEM_CMA_HELPER
 	select DRM_KMS_CMA_HELPER

drivers/gpu/drm/xlnx/zynqmp_disp.c

@@ -91,7 +91,7 @@ struct zynqmp_disp_format {
 };
 
 /**
- * enum zynqmp_disp_id - Layer identifier
+ * enum zynqmp_disp_layer_id - Layer identifier
  * @ZYNQMP_DISP_LAYER_VID: Video layer
  * @ZYNQMP_DISP_LAYER_GFX: Graphics layer
  */
@@ -158,43 +158,17 @@ struct zynqmp_disp_layer {
 	enum zynqmp_disp_layer_mode mode;
 };
 
-/**
- * struct zynqmp_disp_blend - Blender
- * @base: Registers I/O base address
- */
-struct zynqmp_disp_blend {
-	void __iomem *base;
-};
-
-/**
- * struct zynqmp_disp_avbuf - Audio/video buffer manager
- * @base: Registers I/O base address
- */
-struct zynqmp_disp_avbuf {
-	void __iomem *base;
-};
-
-/**
- * struct zynqmp_disp_audio - Audio mixer
- * @base: Registers I/O base address
- * @clk: Audio clock
- * @clk_from_ps: True of the audio clock comes from PS, false from PL
- */
-struct zynqmp_disp_audio {
-	void __iomem *base;
-	struct clk *clk;
-	bool clk_from_ps;
-};
-
 /**
  * struct zynqmp_disp - Display controller
  * @dev: Device structure
  * @drm: DRM core
  * @dpsub: Display subsystem
  * @crtc: DRM CRTC
- * @blend: Blender (video rendering pipeline)
- * @avbuf: Audio/video buffer manager
- * @audio: Audio mixer
+ * @blend.base: Register I/O base address for the blender
+ * @avbuf.base: Register I/O base address for the audio/video buffer manager
+ * @audio.base: Registers I/O base address for the audio mixer
+ * @audio.clk: Audio clock
+ * @audio.clk_from_ps: True of the audio clock comes from PS, false from PL
  * @layers: Layers (planes)
  * @event: Pending vblank event request
  * @pclk: Pixel clock
@@ -207,9 +181,17 @@ struct zynqmp_disp {
 
 	struct drm_crtc crtc;
 
-	struct zynqmp_disp_blend blend;
-	struct zynqmp_disp_avbuf avbuf;
-	struct zynqmp_disp_audio audio;
+	struct {
+		void __iomem *base;
+	} blend;
+	struct {
+		void __iomem *base;
+	} avbuf;
+	struct {
+		void __iomem *base;
+		struct clk *clk;
+		bool clk_from_ps;
+	} audio;
 
 	struct zynqmp_disp_layer layers[ZYNQMP_DISP_NUM_LAYERS];
 
@@ -423,51 +405,60 @@ static const struct zynqmp_disp_format avbuf_gfx_fmts[] = {
 	},
 };
 
-static u32 zynqmp_disp_avbuf_read(struct zynqmp_disp_avbuf *avbuf, int reg)
+static u32 zynqmp_disp_avbuf_read(struct zynqmp_disp *disp, int reg)
 {
-	return readl(avbuf->base + reg);
+	return readl(disp->avbuf.base + reg);
 }
 
-static void zynqmp_disp_avbuf_write(struct zynqmp_disp_avbuf *avbuf,
-				    int reg, u32 val)
+static void zynqmp_disp_avbuf_write(struct zynqmp_disp *disp, int reg, u32 val)
 {
-	writel(val, avbuf->base + reg);
+	writel(val, disp->avbuf.base + reg);
+}
+
+static bool zynqmp_disp_layer_is_gfx(const struct zynqmp_disp_layer *layer)
+{
+	return layer->id == ZYNQMP_DISP_LAYER_GFX;
+}
+
+static bool zynqmp_disp_layer_is_video(const struct zynqmp_disp_layer *layer)
+{
+	return layer->id == ZYNQMP_DISP_LAYER_VID;
 }
 
 /**
  * zynqmp_disp_avbuf_set_format - Set the input format for a layer
- * @avbuf: Audio/video buffer manager
- * @layer: The layer ID
+ * @disp: Display controller
+ * @layer: The layer
  * @fmt: The format information
  *
  * Set the video buffer manager format for @layer to @fmt.
  */
-static void zynqmp_disp_avbuf_set_format(struct zynqmp_disp_avbuf *avbuf,
-					 enum zynqmp_disp_layer_id layer,
+static void zynqmp_disp_avbuf_set_format(struct zynqmp_disp *disp,
+					 struct zynqmp_disp_layer *layer,
 					 const struct zynqmp_disp_format *fmt)
 {
 	unsigned int i;
 	u32 val;
 
-	val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_FMT);
-	val &= layer == ZYNQMP_DISP_LAYER_VID
+	val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_FMT);
+	val &= zynqmp_disp_layer_is_video(layer)
 	    ? ~ZYNQMP_DISP_AV_BUF_FMT_NL_VID_MASK
 	    : ~ZYNQMP_DISP_AV_BUF_FMT_NL_GFX_MASK;
 	val |= fmt->buf_fmt;
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_FMT, val);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_FMT, val);
 
 	for (i = 0; i < ZYNQMP_DISP_AV_BUF_NUM_SF; i++) {
-		unsigned int reg = layer == ZYNQMP_DISP_LAYER_VID
+		unsigned int reg = zynqmp_disp_layer_is_video(layer)
 				 ? ZYNQMP_DISP_AV_BUF_VID_COMP_SF(i)
 				 : ZYNQMP_DISP_AV_BUF_GFX_COMP_SF(i);
 
-		zynqmp_disp_avbuf_write(avbuf, reg, fmt->sf[i]);
+		zynqmp_disp_avbuf_write(disp, reg, fmt->sf[i]);
 	}
 }
 
 /**
  * zynqmp_disp_avbuf_set_clocks_sources - Set the clocks sources
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  * @video_from_ps: True if the video clock originates from the PS
  * @audio_from_ps: True if the audio clock originates from the PS
  * @timings_internal: True if video timings are generated internally
@@ -477,7 +468,7 @@ static void zynqmp_disp_avbuf_set_format(struct zynqmp_disp_avbuf *avbuf,
  * generated internally or externally.
  */
 static void
-zynqmp_disp_avbuf_set_clocks_sources(struct zynqmp_disp_avbuf *avbuf,
+zynqmp_disp_avbuf_set_clocks_sources(struct zynqmp_disp *disp,
 				     bool video_from_ps, bool audio_from_ps,
 				     bool timings_internal)
 {
@@ -490,16 +481,16 @@ zynqmp_disp_avbuf_set_clocks_sources(struct zynqmp_disp_avbuf *avbuf,
 	if (timings_internal)
 		val |= ZYNQMP_DISP_AV_BUF_CLK_SRC_VID_INTERNAL_TIMING;
 
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_CLK_SRC, val);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_CLK_SRC, val);
 }
 
 /**
  * zynqmp_disp_avbuf_enable_channels - Enable buffer channels
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  *
  * Enable all (video and audio) buffer channels.
  */
-static void zynqmp_disp_avbuf_enable_channels(struct zynqmp_disp_avbuf *avbuf)
+static void zynqmp_disp_avbuf_enable_channels(struct zynqmp_disp *disp)
 {
 	unsigned int i;
 	u32 val;
@@ -509,7 +500,7 @@ static void zynqmp_disp_avbuf_enable_channels(struct zynqmp_disp_avbuf *avbuf)
 	       ZYNQMP_DISP_AV_BUF_CHBUF_BURST_LEN_SHIFT);
 
 	for (i = 0; i < ZYNQMP_DISP_AV_BUF_NUM_VID_GFX_BUFFERS; i++)
-		zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_CHBUF(i),
+		zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_CHBUF(i),
 					val);
 
 	val = ZYNQMP_DISP_AV_BUF_CHBUF_EN |
@@ -517,75 +508,75 @@ static void zynqmp_disp_avbuf_enable_channels(struct zynqmp_disp_avbuf *avbuf)
 	       ZYNQMP_DISP_AV_BUF_CHBUF_BURST_LEN_SHIFT);
 
 	for (; i < ZYNQMP_DISP_AV_BUF_NUM_BUFFERS; i++)
-		zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_CHBUF(i),
+		zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_CHBUF(i),
 					val);
 }
 
 /**
  * zynqmp_disp_avbuf_disable_channels - Disable buffer channels
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  *
  * Disable all (video and audio) buffer channels.
  */
-static void zynqmp_disp_avbuf_disable_channels(struct zynqmp_disp_avbuf *avbuf)
+static void zynqmp_disp_avbuf_disable_channels(struct zynqmp_disp *disp)
 {
 	unsigned int i;
 
 	for (i = 0; i < ZYNQMP_DISP_AV_BUF_NUM_BUFFERS; i++)
-		zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_CHBUF(i),
+		zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_CHBUF(i),
 					ZYNQMP_DISP_AV_BUF_CHBUF_FLUSH);
 }
 
 /**
  * zynqmp_disp_avbuf_enable_audio - Enable audio
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  *
  * Enable all audio buffers with a non-live (memory) source.
  */
-static void zynqmp_disp_avbuf_enable_audio(struct zynqmp_disp_avbuf *avbuf)
+static void zynqmp_disp_avbuf_enable_audio(struct zynqmp_disp *disp)
 {
 	u32 val;
 
-	val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT);
+	val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_OUTPUT);
 	val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_AUD1_MASK;
 	val |= ZYNQMP_DISP_AV_BUF_OUTPUT_AUD1_MEM;
 	val |= ZYNQMP_DISP_AV_BUF_OUTPUT_AUD2_EN;
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
 }
 
 /**
  * zynqmp_disp_avbuf_disable_audio - Disable audio
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  *
  * Disable all audio buffers.
  */
-static void zynqmp_disp_avbuf_disable_audio(struct zynqmp_disp_avbuf *avbuf)
+static void zynqmp_disp_avbuf_disable_audio(struct zynqmp_disp *disp)
 {
 	u32 val;
 
-	val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT);
+	val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_OUTPUT);
 	val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_AUD1_MASK;
 	val |= ZYNQMP_DISP_AV_BUF_OUTPUT_AUD1_DISABLE;
 	val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_AUD2_EN;
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
 }
 
 /**
  * zynqmp_disp_avbuf_enable_video - Enable a video layer
- * @avbuf: Audio/video buffer manager
- * @layer: The layer ID
+ * @disp: Display controller
+ * @layer: The layer
  * @mode: Operating mode of layer
  *
  * Enable the video/graphics buffer for @layer.
  */
-static void zynqmp_disp_avbuf_enable_video(struct zynqmp_disp_avbuf *avbuf,
-					   enum zynqmp_disp_layer_id layer,
+static void zynqmp_disp_avbuf_enable_video(struct zynqmp_disp *disp,
+					   struct zynqmp_disp_layer *layer,
 					   enum zynqmp_disp_layer_mode mode)
 {
 	u32 val;
 
-	val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT);
-	if (layer == ZYNQMP_DISP_LAYER_VID) {
+	val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_OUTPUT);
+	if (zynqmp_disp_layer_is_video(layer)) {
 		val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_MASK;
 		if (mode == ZYNQMP_DISP_LAYER_NONLIVE)
 			val |= ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_MEM;
@@ -599,52 +590,52 @@ static void zynqmp_disp_avbuf_enable_video(struct zynqmp_disp_avbuf *avbuf,
 		else
 			val |= ZYNQMP_DISP_AV_BUF_OUTPUT_VID2_LIVE;
 	}
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
 }
 
 /**
  * zynqmp_disp_avbuf_disable_video - Disable a video layer
- * @avbuf: Audio/video buffer manager
- * @layer: The layer ID
+ * @disp: Display controller
+ * @layer: The layer
  *
  * Disable the video/graphics buffer for @layer.
  */
-static void zynqmp_disp_avbuf_disable_video(struct zynqmp_disp_avbuf *avbuf,
-					    enum zynqmp_disp_layer_id layer)
+static void zynqmp_disp_avbuf_disable_video(struct zynqmp_disp *disp,
+					    struct zynqmp_disp_layer *layer)
 {
 	u32 val;
 
-	val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT);
-	if (layer == ZYNQMP_DISP_LAYER_VID) {
+	val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_OUTPUT);
+	if (zynqmp_disp_layer_is_video(layer)) {
 		val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_MASK;
 		val |= ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_NONE;
 	} else {
 		val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_VID2_MASK;
 		val |= ZYNQMP_DISP_AV_BUF_OUTPUT_VID2_DISABLE;
 	}
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_OUTPUT, val);
 }
 
 /**
  * zynqmp_disp_avbuf_enable - Enable the video pipe
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  *
  * De-assert the video pipe reset.
  */
-static void zynqmp_disp_avbuf_enable(struct zynqmp_disp_avbuf *avbuf)
+static void zynqmp_disp_avbuf_enable(struct zynqmp_disp *disp)
 {
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_SRST_REG, 0);
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_SRST_REG, 0);
 }
 
 /**
  * zynqmp_disp_avbuf_disable - Disable the video pipe
- * @avbuf: Audio/video buffer manager
+ * @disp: Display controller
  *
  * Assert the video pipe reset.
  */
-static void zynqmp_disp_avbuf_disable(struct zynqmp_disp_avbuf *avbuf)
+static void zynqmp_disp_avbuf_disable(struct zynqmp_disp *disp)
 {
-	zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_SRST_REG,
+	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_SRST_REG,
 				ZYNQMP_DISP_AV_BUF_SRST_REG_VID_RST);
 }
 
@@ -652,10 +643,9 @@ static void zynqmp_disp_avbuf_disable(struct zynqmp_disp_avbuf *avbuf)
  * Blender (Video Pipeline)
  */
 
-static void zynqmp_disp_blend_write(struct zynqmp_disp_blend *blend,
-				    int reg, u32 val)
+static void zynqmp_disp_blend_write(struct zynqmp_disp *disp, int reg, u32 val)
 {
-	writel(val, blend->base + reg);
+	writel(val, disp->blend.base + reg);
 }
 
 /*
@@ -701,12 +691,12 @@ static const u32 csc_sdtv_to_rgb_offsets[] = {
 
 /**
  * zynqmp_disp_blend_set_output_format - Set the output format of the blender
- * @blend: Blender object
+ * @disp: Display controller
  * @format: Output format
  *
  * Set the output format of the blender to @format.
  */
-static void zynqmp_disp_blend_set_output_format(struct zynqmp_disp_blend *blend,
+static void zynqmp_disp_blend_set_output_format(struct zynqmp_disp *disp,
 						enum zynqmp_dpsub_format format)
 {
 	static const unsigned int blend_output_fmts[] = {
@@ -722,7 +712,7 @@ static void zynqmp_disp_blend_set_output_format(struct zynqmp_disp_blend *blend,
 	const u32 *offsets;
 	unsigned int i;
 
-	zynqmp_disp_blend_write(blend, ZYNQMP_DISP_V_BLEND_OUTPUT_VID_FMT, fmt);
+	zynqmp_disp_blend_write(disp, ZYNQMP_DISP_V_BLEND_OUTPUT_VID_FMT, fmt);
 	if (fmt == ZYNQMP_DISP_V_BLEND_OUTPUT_VID_FMT_RGB) {
 		coeffs = csc_identity_matrix;
 		offsets = csc_zero_offsets;
@@ -732,19 +722,19 @@ static void zynqmp_disp_blend_set_output_format(struct zynqmp_disp_blend *blend,
 	}
 
 	for (i = 0; i < ZYNQMP_DISP_V_BLEND_NUM_COEFF; i++)
-		zynqmp_disp_blend_write(blend,
+		zynqmp_disp_blend_write(disp,
 					ZYNQMP_DISP_V_BLEND_RGB2YCBCR_COEFF(i),
 					coeffs[i]);
 
 	for (i = 0; i < ZYNQMP_DISP_V_BLEND_NUM_OFFSET; i++)
-		zynqmp_disp_blend_write(blend,
+		zynqmp_disp_blend_write(disp,
 					ZYNQMP_DISP_V_BLEND_OUTCSC_OFFSET(i),
 					offsets[i]);
 }
 
 /**
  * zynqmp_disp_blend_set_bg_color - Set the background color
- * @blend: Blender object
+ * @disp: Display controller
  * @rcr: Red/Cr color component
  * @gy: Green/Y color component
  * @bcb: Blue/Cb color component
@@ -753,31 +743,31 @@ static void zynqmp_disp_blend_set_output_format(struct zynqmp_disp_blend *blend,
  * B or Cr, Y and Cb components respectively depending on the selected output
  * format.
  */
-static void zynqmp_disp_blend_set_bg_color(struct zynqmp_disp_blend *blend,
+static void zynqmp_disp_blend_set_bg_color(struct zynqmp_disp *disp,
 					   u32 rcr, u32 gy, u32 bcb)
 {
-	zynqmp_disp_blend_write(blend, ZYNQMP_DISP_V_BLEND_BG_CLR_0, rcr);
-	zynqmp_disp_blend_write(blend, ZYNQMP_DISP_V_BLEND_BG_CLR_1, gy);
-	zynqmp_disp_blend_write(blend, ZYNQMP_DISP_V_BLEND_BG_CLR_2, bcb);
+	zynqmp_disp_blend_write(disp, ZYNQMP_DISP_V_BLEND_BG_CLR_0, rcr);
+	zynqmp_disp_blend_write(disp, ZYNQMP_DISP_V_BLEND_BG_CLR_1, gy);
+	zynqmp_disp_blend_write(disp, ZYNQMP_DISP_V_BLEND_BG_CLR_2, bcb);
 }
 
 /**
  * zynqmp_disp_blend_set_global_alpha - Configure global alpha blending
- * @blend: Blender object
+ * @disp: Display controller
  * @enable: True to enable global alpha blending
  * @alpha: Global alpha value (ignored if @enabled is false)
  */
-static void zynqmp_disp_blend_set_global_alpha(struct zynqmp_disp_blend *blend,
+static void zynqmp_disp_blend_set_global_alpha(struct zynqmp_disp *disp,
 					       bool enable, u32 alpha)
 {
-	zynqmp_disp_blend_write(blend, ZYNQMP_DISP_V_BLEND_SET_GLOBAL_ALPHA,
+	zynqmp_disp_blend_write(disp, ZYNQMP_DISP_V_BLEND_SET_GLOBAL_ALPHA,
 				ZYNQMP_DISP_V_BLEND_SET_GLOBAL_ALPHA_VALUE(alpha) |
 				(enable ? ZYNQMP_DISP_V_BLEND_SET_GLOBAL_ALPHA_EN : 0));
 }
 
 /**
  * zynqmp_disp_blend_layer_set_csc - Configure colorspace conversion for layer
- * @blend: Blender object
+ * @disp: Display controller
  * @layer: The layer
  * @coeffs: Colorspace conversion matrix
  * @offsets: Colorspace conversion offsets
@@ -786,7 +776,7 @@ static void zynqmp_disp_blend_set_global_alpha(struct zynqmp_disp_blend *blend,
  * Columns of the matrix are automatically swapped based on the input format to
  * handle RGB and YCrCb components permutations.
  */
-static void zynqmp_disp_blend_layer_set_csc(struct zynqmp_disp_blend *blend,
+static void zynqmp_disp_blend_layer_set_csc(struct zynqmp_disp *disp,
 					    struct zynqmp_disp_layer *layer,
 					    const u16 *coeffs,
 					    const u32 *offsets)
@@ -807,32 +797,32 @@ static void zynqmp_disp_blend_layer_set_csc(struct zynqmp_disp_blend *blend,
 		}
 	}
 
-	if (layer->id == ZYNQMP_DISP_LAYER_VID)
+	if (zynqmp_disp_layer_is_video(layer))
 		reg = ZYNQMP_DISP_V_BLEND_IN1CSC_COEFF(0);
 	else
 		reg = ZYNQMP_DISP_V_BLEND_IN2CSC_COEFF(0);
 
 	for (i = 0; i < ZYNQMP_DISP_V_BLEND_NUM_COEFF; i += 3, reg += 12) {
-		zynqmp_disp_blend_write(blend, reg + 0, coeffs[i + swap[0]]);
-		zynqmp_disp_blend_write(blend, reg + 4, coeffs[i + swap[1]]);
-		zynqmp_disp_blend_write(blend, reg + 8, coeffs[i + swap[2]]);
+		zynqmp_disp_blend_write(disp, reg + 0, coeffs[i + swap[0]]);
+		zynqmp_disp_blend_write(disp, reg + 4, coeffs[i + swap[1]]);
+		zynqmp_disp_blend_write(disp, reg + 8, coeffs[i + swap[2]]);
 	}
 
-	if (layer->id == ZYNQMP_DISP_LAYER_VID)
+	if (zynqmp_disp_layer_is_video(layer))
 		reg = ZYNQMP_DISP_V_BLEND_IN1CSC_OFFSET(0);
 	else
 		reg = ZYNQMP_DISP_V_BLEND_IN2CSC_OFFSET(0);
 
 	for (i = 0; i < ZYNQMP_DISP_V_BLEND_NUM_OFFSET; i++)
-		zynqmp_disp_blend_write(blend, reg + i * 4, offsets[i]);
+		zynqmp_disp_blend_write(disp, reg + i * 4, offsets[i]);
 }
 
 /**
  * zynqmp_disp_blend_layer_enable - Enable a layer
- * @blend: Blender object
+ * @disp: Display controller
  * @layer: The layer
  */
-static void zynqmp_disp_blend_layer_enable(struct zynqmp_disp_blend *blend,
+static void zynqmp_disp_blend_layer_enable(struct zynqmp_disp *disp,
 					   struct zynqmp_disp_layer *layer)
 {
 	const u16 *coeffs;
@@ -844,7 +834,7 @@ static void zynqmp_disp_blend_layer_enable(struct zynqmp_disp_blend *blend,
 	      (layer->drm_fmt->hsub > 1 ?
 	       ZYNQMP_DISP_V_BLEND_LAYER_CONTROL_EN_US : 0);
 
-	zynqmp_disp_blend_write(blend,
+	zynqmp_disp_blend_write(disp,
 				ZYNQMP_DISP_V_BLEND_LAYER_CONTROL(layer->id),
 				val);
 
@@ -856,22 +846,22 @@ static void zynqmp_disp_blend_layer_enable(struct zynqmp_disp_blend *blend,
 		offsets = csc_zero_offsets;
 	}
 
-	zynqmp_disp_blend_layer_set_csc(blend, layer, coeffs, offsets);
+	zynqmp_disp_blend_layer_set_csc(disp, layer, coeffs, offsets);
 }
 
 /**
  * zynqmp_disp_blend_layer_disable - Disable a layer
- * @blend: Blender object
+ * @disp: Display controller
  * @layer: The layer
  */
-static void zynqmp_disp_blend_layer_disable(struct zynqmp_disp_blend *blend,
+static void zynqmp_disp_blend_layer_disable(struct zynqmp_disp *disp,
 					    struct zynqmp_disp_layer *layer)
 {
-	zynqmp_disp_blend_write(blend,
+	zynqmp_disp_blend_write(disp,
 				ZYNQMP_DISP_V_BLEND_LAYER_CONTROL(layer->id),
 				0);
 
-	zynqmp_disp_blend_layer_set_csc(blend, layer, csc_zero_matrix,
+	zynqmp_disp_blend_layer_set_csc(disp, layer, csc_zero_matrix,
 					csc_zero_offsets);
 }
 
@@ -879,57 +869,55 @@ static void zynqmp_disp_blend_layer_disable(struct zynqmp_disp_blend *blend,
  * Audio Mixer
  */
 
-static void zynqmp_disp_audio_write(struct zynqmp_disp_audio *audio,
-				  int reg, u32 val)
+static void zynqmp_disp_audio_write(struct zynqmp_disp *disp, int reg, u32 val)
 {
-	writel(val, audio->base + reg);
+	writel(val, disp->audio.base + reg);
 }
 
 /**
  * zynqmp_disp_audio_enable - Enable the audio mixer
- * @audio: Audio mixer
+ * @disp: Display controller
  *
  * Enable the audio mixer by de-asserting the soft reset. The audio state is set to
  * default values by the reset, set the default mixer volume explicitly.
  */
-static void zynqmp_disp_audio_enable(struct zynqmp_disp_audio *audio)
+static void zynqmp_disp_audio_enable(struct zynqmp_disp *disp)
 {
 	/* Clear the audio soft reset register as it's an non-reset flop. */
-	zynqmp_disp_audio_write(audio, ZYNQMP_DISP_AUD_SOFT_RESET, 0);
-	zynqmp_disp_audio_write(audio, ZYNQMP_DISP_AUD_MIXER_VOLUME,
+	zynqmp_disp_audio_write(disp, ZYNQMP_DISP_AUD_SOFT_RESET, 0);
+	zynqmp_disp_audio_write(disp, ZYNQMP_DISP_AUD_MIXER_VOLUME,
 				ZYNQMP_DISP_AUD_MIXER_VOLUME_NO_SCALE);
 }
 
 /**
  * zynqmp_disp_audio_disable - Disable the audio mixer
- * @audio: Audio mixer
+ * @disp: Display controller
  *
  * Disable the audio mixer by asserting its soft reset.
  */
-static void zynqmp_disp_audio_disable(struct zynqmp_disp_audio *audio)
+static void zynqmp_disp_audio_disable(struct zynqmp_disp *disp)
 {
-	zynqmp_disp_audio_write(audio, ZYNQMP_DISP_AUD_SOFT_RESET,
+	zynqmp_disp_audio_write(disp, ZYNQMP_DISP_AUD_SOFT_RESET,
 				ZYNQMP_DISP_AUD_SOFT_RESET_AUD_SRST);
 }
 
-static void zynqmp_disp_audio_init(struct device *dev,
-				   struct zynqmp_disp_audio *audio)
+static void zynqmp_disp_audio_init(struct zynqmp_disp *disp)
 {
 	/* Try the live PL audio clock. */
-	audio->clk = devm_clk_get(dev, "dp_live_audio_aclk");
-	if (!IS_ERR(audio->clk)) {
-		audio->clk_from_ps = false;
+	disp->audio.clk = devm_clk_get(disp->dev, "dp_live_audio_aclk");
+	if (!IS_ERR(disp->audio.clk)) {
+		disp->audio.clk_from_ps = false;
 		return;
 	}
 
 	/* If the live PL audio clock is not valid, fall back to PS clock. */
-	audio->clk = devm_clk_get(dev, "dp_aud_clk");
-	if (!IS_ERR(audio->clk)) {
-		audio->clk_from_ps = true;
+	disp->audio.clk = devm_clk_get(disp->dev, "dp_aud_clk");
+	if (!IS_ERR(disp->audio.clk)) {
+		disp->audio.clk_from_ps = true;
 		return;
 	}
 
-	dev_err(dev, "audio disabled due to missing clock\n");
+	dev_err(disp->dev, "audio disabled due to missing clock\n");
 }
 
 /* -----------------------------------------------------------------------------
@@ -1025,9 +1013,9 @@ zynqmp_disp_layer_find_format(struct zynqmp_disp_layer *layer,
  */
 static void zynqmp_disp_layer_enable(struct zynqmp_disp_layer *layer)
 {
-	zynqmp_disp_avbuf_enable_video(&layer->disp->avbuf, layer->id,
+	zynqmp_disp_avbuf_enable_video(layer->disp, layer,
 				       ZYNQMP_DISP_LAYER_NONLIVE);
-	zynqmp_disp_blend_layer_enable(&layer->disp->blend, layer);
+	zynqmp_disp_blend_layer_enable(layer->disp, layer);
 
 	layer->mode = ZYNQMP_DISP_LAYER_NONLIVE;
 }
@@ -1046,8 +1034,8 @@ static void zynqmp_disp_layer_disable(struct zynqmp_disp_layer *layer)
 	for (i = 0; i < layer->drm_fmt->num_planes; i++)
 		dmaengine_terminate_sync(layer->dmas[i].chan);
 
-	zynqmp_disp_avbuf_disable_video(&layer->disp->avbuf, layer->id);
-	zynqmp_disp_blend_layer_disable(&layer->disp->blend, layer);
+	zynqmp_disp_avbuf_disable_video(layer->disp, layer);
+	zynqmp_disp_blend_layer_disable(layer->disp, layer);
 }
 
 /**
@@ -1067,8 +1055,7 @@ static void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer,
 	layer->disp_fmt = zynqmp_disp_layer_find_format(layer, info->format);
 	layer->drm_fmt = info;
 
-	zynqmp_disp_avbuf_set_format(&layer->disp->avbuf, layer->id,
-				     layer->disp_fmt);
+	zynqmp_disp_avbuf_set_format(layer->disp, layer, layer->disp_fmt);
 
 	/*
 	 * Set slave_id for each DMA channel to indicate they're part of a
@@ -1175,6 +1162,10 @@ zynqmp_disp_plane_atomic_disable(struct drm_plane *plane,
 		return;
 
 	zynqmp_disp_layer_disable(layer);
+
+	if (zynqmp_disp_layer_is_gfx(layer))
+		zynqmp_disp_blend_set_global_alpha(layer->disp, false,
+						   plane->state->alpha >> 8);
 }
 
 static void
@@ -1204,6 +1195,10 @@ zynqmp_disp_plane_atomic_update(struct drm_plane *plane,
 
 	zynqmp_disp_layer_update(layer, new_state);
 
+	if (zynqmp_disp_layer_is_gfx(layer))
+		zynqmp_disp_blend_set_global_alpha(layer->disp, true,
+						   plane->state->alpha >> 8);
+
 	/* Enable or re-enable the plane is the format has changed. */
 	if (format_changed)
 		zynqmp_disp_layer_enable(layer);
@@ -1244,8 +1239,8 @@ static int zynqmp_disp_create_planes(struct zynqmp_disp *disp)
 			drm_formats[j] = layer->info->formats[j].drm_fmt;
 
 		/* Graphics layer is primary, and video layer is overlay. */
-		type = i == ZYNQMP_DISP_LAYER_GFX
-		     ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
+		type = zynqmp_disp_layer_is_video(layer)
+		     ? DRM_PLANE_TYPE_OVERLAY : DRM_PLANE_TYPE_PRIMARY;
 		ret = drm_universal_plane_init(disp->drm, &layer->plane, 0,
 					       &zynqmp_disp_plane_funcs,
 					       drm_formats,
@@ -1256,6 +1251,10 @@ static int zynqmp_disp_create_planes(struct zynqmp_disp *disp)
 
 		drm_plane_helper_add(&layer->plane,
 				     &zynqmp_disp_plane_helper_funcs);
+
+		drm_plane_create_zpos_immutable_property(&layer->plane, i);
+		if (zynqmp_disp_layer_is_gfx(layer))
+			drm_plane_create_alpha_property(&layer->plane);
 	}
 
 	return 0;
@@ -1387,14 +1386,14 @@ static int zynqmp_disp_create_layers(struct zynqmp_disp *disp)
  */
 static void zynqmp_disp_enable(struct zynqmp_disp *disp)
 {
-	zynqmp_disp_avbuf_enable(&disp->avbuf);
+	zynqmp_disp_avbuf_enable(disp);
 	/* Choose clock source based on the DT clock handle. */
-	zynqmp_disp_avbuf_set_clocks_sources(&disp->avbuf, disp->pclk_from_ps,
+	zynqmp_disp_avbuf_set_clocks_sources(disp, disp->pclk_from_ps,
 					     disp->audio.clk_from_ps, true);
-	zynqmp_disp_avbuf_enable_channels(&disp->avbuf);
-	zynqmp_disp_avbuf_enable_audio(&disp->avbuf);
+	zynqmp_disp_avbuf_enable_channels(disp);
+	zynqmp_disp_avbuf_enable_audio(disp);
 
-	zynqmp_disp_audio_enable(&disp->audio);
+	zynqmp_disp_audio_enable(disp);
 }
 
 /**
@@ -1403,11 +1402,11 @@ static void zynqmp_disp_enable(struct zynqmp_disp *disp)
  */
 static void zynqmp_disp_disable(struct zynqmp_disp *disp)
 {
-	zynqmp_disp_audio_disable(&disp->audio);
+	zynqmp_disp_audio_disable(disp);
 
-	zynqmp_disp_avbuf_disable_audio(&disp->avbuf);
-	zynqmp_disp_avbuf_disable_channels(&disp->avbuf);
-	zynqmp_disp_avbuf_disable(&disp->avbuf);
+	zynqmp_disp_avbuf_disable_audio(disp);
+	zynqmp_disp_avbuf_disable_channels(disp);
+	zynqmp_disp_avbuf_disable(disp);
 }
 
 static inline struct zynqmp_disp *crtc_to_disp(struct drm_crtc *crtc)
@@ -1452,9 +1451,10 @@ zynqmp_disp_crtc_atomic_enable(struct drm_crtc *crtc,
 	struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode;
 	int ret, vrefresh;
 
+	pm_runtime_get_sync(disp->dev);
+
 	zynqmp_disp_crtc_setup_clock(crtc, adjusted_mode);
 
-	pm_runtime_get_sync(disp->dev);
 	ret = clk_prepare_enable(disp->pclk);
 	if (ret) {
 		dev_err(disp->dev, "failed to enable a pixel clock\n");
@@ -1462,10 +1462,8 @@ zynqmp_disp_crtc_atomic_enable(struct drm_crtc *crtc,
 		return;
 	}
 
-	zynqmp_disp_blend_set_output_format(&disp->blend,
-					    ZYNQMP_DPSUB_FORMAT_RGB);
-	zynqmp_disp_blend_set_bg_color(&disp->blend, 0, 0, 0);
-	zynqmp_disp_blend_set_global_alpha(&disp->blend, false, 0);
+	zynqmp_disp_blend_set_output_format(disp, ZYNQMP_DPSUB_FORMAT_RGB);
+	zynqmp_disp_blend_set_bg_color(disp, 0, 0, 0);
 
 	zynqmp_disp_enable(disp);
 
@@ -1674,7 +1672,7 @@ int zynqmp_disp_probe(struct zynqmp_dpsub *dpsub, struct drm_device *drm)
 		disp->pclk_from_ps = true;
 	}
 
-	zynqmp_disp_audio_init(disp->dev, &disp->audio);
+	zynqmp_disp_audio_init(disp);
 
 	ret = zynqmp_disp_create_layers(disp);
 	if (ret)

drivers/gpu/drm/xlnx/zynqmp_dp.c

@@ -402,10 +402,6 @@ static int zynqmp_dp_phy_init(struct zynqmp_dp *dp)
 		}
 	}
 
-	ret = zynqmp_dp_reset(dp, false);
-	if (ret < 0)
-		return ret;
-
 	zynqmp_dp_clr(dp, ZYNQMP_DP_PHY_RESET, ZYNQMP_DP_PHY_RESET_ALL_RESET);
 
 	/*
@@ -441,8 +437,6 @@ static void zynqmp_dp_phy_exit(struct zynqmp_dp *dp)
 				ret);
 	}
 
-	zynqmp_dp_reset(dp, true);
-
 	for (i = 0; i < dp->num_lanes; i++) {
 		ret = phy_exit(dp->phy[i]);
 		if (ret)
@@ -1683,9 +1677,13 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub, struct drm_device *drm)
 		return PTR_ERR(dp->reset);
 	}
 
+	ret = zynqmp_dp_reset(dp, false);
+	if (ret < 0)
+		return ret;
+
 	ret = zynqmp_dp_phy_probe(dp);
 	if (ret)
-		return ret;
+		goto err_reset;
 
 	/* Initialize the hardware. */
 	zynqmp_dp_write(dp, ZYNQMP_DP_TX_PHY_POWER_DOWN,
@@ -1697,7 +1695,7 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub, struct drm_device *drm)
 
 	ret = zynqmp_dp_phy_init(dp);
 	if (ret)
-		return ret;
+		goto err_reset;
 
 	zynqmp_dp_write(dp, ZYNQMP_DP_TRANSMITTER_ENABLE, 1);
 
@@ -1709,15 +1707,18 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub, struct drm_device *drm)
 					zynqmp_dp_irq_handler, IRQF_ONESHOT,
 					dev_name(dp->dev), dp);
 	if (ret < 0)
-		goto error;
+		goto err_phy_exit;
 
 	dev_dbg(dp->dev, "ZynqMP DisplayPort Tx probed with %u lanes\n",
 		dp->num_lanes);
 
 	return 0;
 
-error:
+err_phy_exit:
 	zynqmp_dp_phy_exit(dp);
+err_reset:
+	zynqmp_dp_reset(dp, true);
+
 	return ret;
 }
 
@@ -1735,4 +1736,5 @@ void zynqmp_dp_remove(struct zynqmp_dpsub *dpsub)
 	zynqmp_dp_write(dp, ZYNQMP_DP_INT_DS, 0xffffffff);
 
 	zynqmp_dp_phy_exit(dp);
+	zynqmp_dp_reset(dp, true);
 }