drm/vc4: Get the rid of DRM_ERROR()

DRM_ERROR() has been deprecated in favor of pr_err(). However, we
should prefer to use drm_err() whenever possible so we get device-
specific output with the error message. In error case of kcalloc,
we can simply drop DRM_ERROR(), because kcalloc already logs errors.

Suggested-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240821214052.6800-4-wahrenst@gmx.net

Author: lategoodbye

drivers/gpu/drm/vc4/vc4_bo.c

@@ -469,7 +469,7 @@ struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t unaligned_size,
 
 	if (IS_ERR(dma_obj)) {
 		struct drm_printer p = drm_info_printer(vc4->base.dev);
-		DRM_ERROR("Failed to allocate from GEM DMA helper:\n");
+		drm_err(dev, "Failed to allocate from GEM DMA helper:\n");
 		vc4_bo_stats_print(&p, vc4);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -702,7 +702,7 @@ static struct dma_buf *vc4_prime_export(struct drm_gem_object *obj, int flags)
 	 */
 	ret = vc4_bo_inc_usecnt(bo);
 	if (ret) {
-		DRM_ERROR("Failed to increment BO usecnt\n");
+		drm_err(obj->dev, "Failed to increment BO usecnt\n");
 		return ERR_PTR(ret);
 	}
 
@@ -1050,10 +1050,10 @@ static void vc4_bo_cache_destroy(struct drm_device *dev, void *unused)
 
 	for (i = 0; i < vc4->num_labels; i++) {
 		if (vc4->bo_labels[i].num_allocated) {
-			DRM_ERROR("Destroying BO cache with %d %s "
-				  "BOs still allocated\n",
-				  vc4->bo_labels[i].num_allocated,
-				  vc4->bo_labels[i].name);
+			drm_err(dev, "Destroying BO cache with %d %s "
+				"BOs still allocated\n",
+				vc4->bo_labels[i].num_allocated,
+				vc4->bo_labels[i].name);
 		}
 
 		if (is_user_label(i))
@@ -1083,7 +1083,7 @@ int vc4_label_bo_ioctl(struct drm_device *dev, void *data,
 
 	gem_obj = drm_gem_object_lookup(file_priv, args->handle);
 	if (!gem_obj) {
-		DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
+		drm_err(dev, "Failed to look up GEM BO %d\n", args->handle);
 		kfree(name);
 		return -ENOENT;
 	}

drivers/gpu/drm/vc4/vc4_dpi.c

@@ -199,8 +199,8 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder)
 						       DPI_FORMAT);
 				break;
 			default:
-				DRM_ERROR("Unknown media bus format %d\n",
-					  bus_format);
+				drm_err(dev, "Unknown media bus format %d\n",
+					bus_format);
 				break;
 			}
 		}
@@ -236,11 +236,11 @@ static void vc4_dpi_encoder_enable(struct drm_encoder *encoder)
 
 	ret = clk_set_rate(dpi->pixel_clock, mode->clock * 1000);
 	if (ret)
-		DRM_ERROR("Failed to set clock rate: %d\n", ret);
+		drm_err(dev, "Failed to set clock rate: %d\n", ret);
 
 	ret = clk_prepare_enable(dpi->pixel_clock);
 	if (ret)
-		DRM_ERROR("Failed to set clock rate: %d\n", ret);
+		drm_err(dev, "Failed to set clock rate: %d\n", ret);
 
 	drm_dev_exit(idx);
 }
@@ -339,21 +339,21 @@ static int vc4_dpi_bind(struct device *dev, struct device *master, void *data)
 	if (IS_ERR(dpi->core_clock)) {
 		ret = PTR_ERR(dpi->core_clock);
 		if (ret != -EPROBE_DEFER)
-			DRM_ERROR("Failed to get core clock: %d\n", ret);
+			drm_err(drm, "Failed to get core clock: %d\n", ret);
 		return ret;
 	}
 
 	dpi->pixel_clock = devm_clk_get(dev, "pixel");
 	if (IS_ERR(dpi->pixel_clock)) {
 		ret = PTR_ERR(dpi->pixel_clock);
 		if (ret != -EPROBE_DEFER)
-			DRM_ERROR("Failed to get pixel clock: %d\n", ret);
+			drm_err(drm, "Failed to get pixel clock: %d\n", ret);
 		return ret;
 	}
 
 	ret = clk_prepare_enable(dpi->core_clock);
 	if (ret) {
-		DRM_ERROR("Failed to turn on core clock: %d\n", ret);
+		drm_err(drm, "Failed to turn on core clock: %d\n", ret);
 		return ret;
 	}
 

drivers/gpu/drm/vc4/vc4_dsi.c

@@ -613,6 +613,7 @@ struct vc4_dsi {
 static inline void
 dsi_dma_workaround_write(struct vc4_dsi *dsi, u32 offset, u32 val)
 {
+	struct drm_device *drm = dsi->bridge.dev;
 	struct dma_chan *chan = dsi->reg_dma_chan;
 	struct dma_async_tx_descriptor *tx;
 	dma_cookie_t cookie;
@@ -633,19 +634,19 @@ dsi_dma_workaround_write(struct vc4_dsi *dsi, u32 offset, u32 val)
 						  dsi->reg_dma_paddr,
 						  4, 0);
 	if (!tx) {
-		DRM_ERROR("Failed to set up DMA register write\n");
+		drm_err(drm, "Failed to set up DMA register write\n");
 		return;
 	}
 
 	cookie = tx->tx_submit(tx);
 	ret = dma_submit_error(cookie);
 	if (ret) {
-		DRM_ERROR("Failed to submit DMA: %d\n", ret);
+		drm_err(drm, "Failed to submit DMA: %d\n", ret);
 		return;
 	}
 	ret = dma_sync_wait(chan, cookie);
 	if (ret)
-		DRM_ERROR("Failed to wait for DMA: %d\n", ret);
+		drm_err(drm, "Failed to wait for DMA: %d\n", ret);
 }
 
 #define DSI_READ(offset)								\
@@ -893,7 +894,7 @@ static void vc4_dsi_bridge_pre_enable(struct drm_bridge *bridge,
 
 	ret = pm_runtime_resume_and_get(dev);
 	if (ret) {
-		DRM_ERROR("Failed to runtime PM enable on DSI%d\n", dsi->variant->port);
+		drm_err(bridge->dev, "Failed to runtime PM enable on DSI%d\n", dsi->variant->port);
 		return;
 	}
 
@@ -986,13 +987,14 @@ static void vc4_dsi_bridge_pre_enable(struct drm_bridge *bridge,
 
 	ret = clk_prepare_enable(dsi->escape_clock);
 	if (ret) {
-		DRM_ERROR("Failed to turn on DSI escape clock: %d\n", ret);
+		drm_err(bridge->dev, "Failed to turn on DSI escape clock: %d\n",
+			ret);
 		return;
 	}
 
 	ret = clk_prepare_enable(dsi->pll_phy_clock);
 	if (ret) {
-		DRM_ERROR("Failed to turn on DSI PLL: %d\n", ret);
+		drm_err(bridge->dev, "Failed to turn on DSI PLL: %d\n", ret);
 		return;
 	}
 
@@ -1014,7 +1016,7 @@ static void vc4_dsi_bridge_pre_enable(struct drm_bridge *bridge,
 
 	ret = clk_prepare_enable(dsi->pixel_clock);
 	if (ret) {
-		DRM_ERROR("Failed to turn on DSI pixel clock: %d\n", ret);
+		drm_err(bridge->dev, "Failed to turn on DSI pixel clock: %d\n", ret);
 		return;
 	}
 
@@ -1172,6 +1174,7 @@ static ssize_t vc4_dsi_host_transfer(struct mipi_dsi_host *host,
 				     const struct mipi_dsi_msg *msg)
 {
 	struct vc4_dsi *dsi = host_to_dsi(host);
+	struct drm_device *drm = dsi->bridge.dev;
 	struct mipi_dsi_packet packet;
 	u32 pkth = 0, pktc = 0;
 	int i, ret;
@@ -1303,8 +1306,8 @@ static ssize_t vc4_dsi_host_transfer(struct mipi_dsi_host *host,
 						  DSI_RXPKT1H_BC_PARAM);
 
 			if (rxlen != msg->rx_len) {
-				DRM_ERROR("DSI returned %db, expecting %db\n",
-					  rxlen, (int)msg->rx_len);
+				drm_err(drm, "DSI returned %db, expecting %db\n",
+					rxlen, (int)msg->rx_len);
 				ret = -ENXIO;
 				goto reset_fifo_and_return;
 			}
@@ -1326,7 +1329,7 @@ static ssize_t vc4_dsi_host_transfer(struct mipi_dsi_host *host,
 	return ret;
 
 reset_fifo_and_return:
-	DRM_ERROR("DSI transfer failed, resetting: %d\n", ret);
+	drm_err(drm, "DSI transfer failed, resetting: %d\n", ret);
 
 	DSI_PORT_WRITE(TXPKT1C, DSI_PORT_READ(TXPKT1C) & ~DSI_TXPKT1C_CMD_EN);
 	udelay(1);
@@ -1468,7 +1471,8 @@ static void dsi_handle_error(struct vc4_dsi *dsi,
 	if (!(stat & bit))
 		return;
 
-	DRM_ERROR("DSI%d: %s error\n", dsi->variant->port, type);
+	drm_err(dsi->bridge.dev, "DSI%d: %s error\n", dsi->variant->port,
+		type);
 	*ret = IRQ_HANDLED;
 }
 
@@ -1687,7 +1691,7 @@ static int vc4_dsi_bind(struct device *dev, struct device *master, void *data)
 						      &dsi->reg_dma_paddr,
 						      GFP_KERNEL);
 		if (!dsi->reg_dma_mem) {
-			DRM_ERROR("Failed to get DMA memory\n");
+			drm_err(drm, "Failed to get DMA memory\n");
 			return -ENOMEM;
 		}
 
@@ -1702,8 +1706,8 @@ static int vc4_dsi_bind(struct device *dev, struct device *master, void *data)
 		if (IS_ERR(dsi->reg_dma_chan)) {
 			ret = PTR_ERR(dsi->reg_dma_chan);
 			if (ret != -EPROBE_DEFER)
-				DRM_ERROR("Failed to get DMA channel: %d\n",
-					  ret);
+				drm_err(drm, "Failed to get DMA channel: %d\n",
+					ret);
 			return ret;
 		}
 

drivers/gpu/drm/vc4/vc4_gem.c

@@ -832,8 +832,8 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
 	 */
 	temp = kvmalloc_array(temp_size, 1, GFP_KERNEL);
 	if (!temp) {
-		DRM_ERROR("Failed to allocate storage for copying "
-			  "in bin/render CLs.\n");
+		drm_err(dev, "Failed to allocate storage for copying "
+			"in bin/render CLs.\n");
 		ret = -ENOMEM;
 		goto fail;
 	}
@@ -866,7 +866,7 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
 
 	bo = vc4_bo_create(dev, exec_size, true, VC4_BO_TYPE_BCL);
 	if (IS_ERR(bo)) {
-		DRM_ERROR("Couldn't allocate BO for binning\n");
+		drm_err(dev, "Couldn't allocate BO for binning\n");
 		ret = PTR_ERR(bo);
 		goto fail;
 	}
@@ -1153,10 +1153,9 @@ vc4_submit_cl_ioctl(struct drm_device *dev, void *data,
 	}
 
 	exec = kcalloc(1, sizeof(*exec), GFP_KERNEL);
-	if (!exec) {
-		DRM_ERROR("malloc failure on exec struct\n");
+	if (!exec)
 		return -ENOMEM;
-	}
+
 	exec->dev = vc4;
 
 	ret = vc4_v3d_pm_get(vc4);

drivers/gpu/drm/vc4/vc4_hdmi.c

@@ -704,7 +704,7 @@ static int vc4_hdmi_write_infoframe(struct drm_connector *connector,
 
 	ret = vc4_hdmi_stop_packet(vc4_hdmi, type, true);
 	if (ret) {
-		DRM_ERROR("Failed to wait for infoframe to go idle: %d\n", ret);
+		drm_err(drm, "Failed to wait for infoframe to go idle: %d\n", ret);
 		goto out;
 	}
 
@@ -740,7 +740,7 @@ static int vc4_hdmi_write_infoframe(struct drm_connector *connector,
 	ret = wait_for((HDMI_READ(HDMI_RAM_PACKET_STATUS) &
 			BIT(packet_id)), 100);
 	if (ret)
-		DRM_ERROR("Failed to wait for infoframe to start: %d\n", ret);
+		drm_err(drm, "Failed to wait for infoframe to start: %d\n", ret);
 
 out:
 	drm_dev_exit(idx);
@@ -901,7 +901,7 @@ static void vc4_hdmi_encoder_post_crtc_powerdown(struct drm_encoder *encoder,
 
 	ret = pm_runtime_put(&vc4_hdmi->pdev->dev);
 	if (ret < 0)
-		DRM_ERROR("Failed to release power domain: %d\n", ret);
+		drm_err(drm, "Failed to release power domain: %d\n", ret);
 
 	drm_dev_exit(idx);
 
@@ -1443,7 +1443,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 
 	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
 	if (ret < 0) {
-		DRM_ERROR("Failed to retain power domain: %d\n", ret);
+		drm_err(drm, "Failed to retain power domain: %d\n", ret);
 		goto err_dev_exit;
 	}
 
@@ -1468,19 +1468,19 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 			 div_u64(tmds_char_rate, 100) * 101);
 	ret = clk_set_min_rate(vc4_hdmi->hsm_clock, hsm_rate);
 	if (ret) {
-		DRM_ERROR("Failed to set HSM clock rate: %d\n", ret);
+		drm_err(drm, "Failed to set HSM clock rate: %d\n", ret);
 		goto err_put_runtime_pm;
 	}
 
 	ret = clk_set_rate(vc4_hdmi->pixel_clock, tmds_char_rate);
 	if (ret) {
-		DRM_ERROR("Failed to set pixel clock rate: %d\n", ret);
+		drm_err(drm, "Failed to set pixel clock rate: %d\n", ret);
 		goto err_put_runtime_pm;
 	}
 
 	ret = clk_prepare_enable(vc4_hdmi->pixel_clock);
 	if (ret) {
-		DRM_ERROR("Failed to turn on pixel clock: %d\n", ret);
+		drm_err(drm, "Failed to turn on pixel clock: %d\n", ret);
 		goto err_put_runtime_pm;
 	}
 
@@ -1496,13 +1496,13 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 
 	ret = clk_set_min_rate(vc4_hdmi->pixel_bvb_clock, bvb_rate);
 	if (ret) {
-		DRM_ERROR("Failed to set pixel bvb clock rate: %d\n", ret);
+		drm_err(drm, "Failed to set pixel bvb clock rate: %d\n", ret);
 		goto err_disable_pixel_clock;
 	}
 
 	ret = clk_prepare_enable(vc4_hdmi->pixel_bvb_clock);
 	if (ret) {
-		DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret);
+		drm_err(drm, "Failed to turn on pixel bvb clock: %d\n", ret);
 		goto err_disable_pixel_clock;
 	}
 
@@ -2951,13 +2951,13 @@ static int vc4_hdmi_init_resources(struct drm_device *drm,
 	if (IS_ERR(vc4_hdmi->pixel_clock)) {
 		ret = PTR_ERR(vc4_hdmi->pixel_clock);
 		if (ret != -EPROBE_DEFER)
-			DRM_ERROR("Failed to get pixel clock\n");
+			drm_err(drm, "Failed to get pixel clock\n");
 		return ret;
 	}
 
 	vc4_hdmi->hsm_clock = devm_clk_get(dev, "hdmi");
 	if (IS_ERR(vc4_hdmi->hsm_clock)) {
-		DRM_ERROR("Failed to get HDMI state machine clock\n");
+		drm_err(drm, "Failed to get HDMI state machine clock\n");
 		return PTR_ERR(vc4_hdmi->hsm_clock);
 	}
 	vc4_hdmi->audio_clock = vc4_hdmi->hsm_clock;
@@ -3041,31 +3041,31 @@ static int vc5_hdmi_init_resources(struct drm_device *drm,
 
 	vc4_hdmi->hsm_clock = devm_clk_get(dev, "hdmi");
 	if (IS_ERR(vc4_hdmi->hsm_clock)) {
-		DRM_ERROR("Failed to get HDMI state machine clock\n");
+		drm_err(drm, "Failed to get HDMI state machine clock\n");
 		return PTR_ERR(vc4_hdmi->hsm_clock);
 	}
 
 	vc4_hdmi->pixel_bvb_clock = devm_clk_get(dev, "bvb");
 	if (IS_ERR(vc4_hdmi->pixel_bvb_clock)) {
-		DRM_ERROR("Failed to get pixel bvb clock\n");
+		drm_err(drm, "Failed to get pixel bvb clock\n");
 		return PTR_ERR(vc4_hdmi->pixel_bvb_clock);
 	}
 
 	vc4_hdmi->audio_clock = devm_clk_get(dev, "audio");
 	if (IS_ERR(vc4_hdmi->audio_clock)) {
-		DRM_ERROR("Failed to get audio clock\n");
+		drm_err(drm, "Failed to get audio clock\n");
 		return PTR_ERR(vc4_hdmi->audio_clock);
 	}
 
 	vc4_hdmi->cec_clock = devm_clk_get(dev, "cec");
 	if (IS_ERR(vc4_hdmi->cec_clock)) {
-		DRM_ERROR("Failed to get CEC clock\n");
+		drm_err(drm, "Failed to get CEC clock\n");
 		return PTR_ERR(vc4_hdmi->cec_clock);
 	}
 
 	vc4_hdmi->reset = devm_reset_control_get(dev, NULL);
 	if (IS_ERR(vc4_hdmi->reset)) {
-		DRM_ERROR("Failed to get HDMI reset line\n");
+		drm_err(drm, "Failed to get HDMI reset line\n");
 		return PTR_ERR(vc4_hdmi->reset);
 	}
 
@@ -3221,14 +3221,14 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
 
 	ddc_node = of_parse_phandle(dev->of_node, "ddc", 0);
 	if (!ddc_node) {
-		DRM_ERROR("Failed to find ddc node in device tree\n");
+		drm_err(drm, "Failed to find ddc node in device tree\n");
 		return -ENODEV;
 	}
 
 	vc4_hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
 	of_node_put(ddc_node);
 	if (!vc4_hdmi->ddc) {
-		DRM_DEBUG("Failed to get ddc i2c adapter by node\n");
+		drm_err(drm, "Failed to get ddc i2c adapter by node\n");
 		return -EPROBE_DEFER;
 	}