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authorDave Airlie <airlied@redhat.com>2022-04-07 03:23:03 +0300
committerDave Airlie <airlied@redhat.com>2022-04-07 03:23:07 +0300
commitc6b035e672e3dc47307fd80ef68718f3e023f5da (patch)
treee8cd3219373985e4652584165c981cbba615ded7 /drivers
parent691b592abb9a5f2b331969393bc06fcc8b564d3c (diff)
parent070a88fd4a03f921b73a2059e97d55faaa447dab (diff)
downloadlinux-c6b035e672e3dc47307fd80ef68718f3e023f5da.tar.xz
Merge tag 'imx-drm-fixes-2022-04-06' of git://git.pengutronix.de/pza/linux into drm-fixes
drm/imx: error handling and debug output fixes Catch an EDID allocation failure in imx-ldb, fix a leaked drm display mode on DT parsing error in parallel-display, properly remove the dw_hdmi bridge in case the component_add fails in dw_hdmi-imx, and fix the IPU clock frequency debug printout in ipu-di. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Philipp Zabel <p.zabel@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220406155101.1271845-1-p.zabel@pengutronix.de
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/imx/dw_hdmi-imx.c8
-rw-r--r--drivers/gpu/drm/imx/imx-ldb.c2
-rw-r--r--drivers/gpu/drm/imx/parallel-display.c4
-rw-r--r--drivers/gpu/ipu-v3/ipu-di.c5
4 files changed, 15 insertions, 4 deletions
diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c
index 87428fb23d9f..a2277a0d6d06 100644
--- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
+++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -222,6 +222,7 @@ static int dw_hdmi_imx_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *match = of_match_node(dw_hdmi_imx_dt_ids, np);
struct imx_hdmi *hdmi;
+ int ret;
hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
@@ -243,10 +244,15 @@ static int dw_hdmi_imx_probe(struct platform_device *pdev)
hdmi->bridge = of_drm_find_bridge(np);
if (!hdmi->bridge) {
dev_err(hdmi->dev, "Unable to find bridge\n");
+ dw_hdmi_remove(hdmi->hdmi);
return -ENODEV;
}
- return component_add(&pdev->dev, &dw_hdmi_imx_ops);
+ ret = component_add(&pdev->dev, &dw_hdmi_imx_ops);
+ if (ret)
+ dw_hdmi_remove(hdmi->hdmi);
+
+ return ret;
}
static int dw_hdmi_imx_remove(struct platform_device *pdev)
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index e5078d03020d..fb0e951248f6 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -572,6 +572,8 @@ static int imx_ldb_panel_ddc(struct device *dev,
edidp = of_get_property(child, "edid", &edid_len);
if (edidp) {
channel->edid = kmemdup(edidp, edid_len, GFP_KERNEL);
+ if (!channel->edid)
+ return -ENOMEM;
} else if (!channel->panel) {
/* fallback to display-timings node */
ret = of_get_drm_display_mode(child,
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 06cb1a59b9bc..63ba2ad84679 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -75,8 +75,10 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
ret = of_get_drm_display_mode(np, &imxpd->mode,
&imxpd->bus_flags,
OF_USE_NATIVE_MODE);
- if (ret)
+ if (ret) {
+ drm_mode_destroy(connector->dev, mode);
return ret;
+ }
drm_mode_copy(mode, &imxpd->mode);
mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
diff --git a/drivers/gpu/ipu-v3/ipu-di.c b/drivers/gpu/ipu-v3/ipu-di.c
index 666223c6bec4..0a34e0ab4fe6 100644
--- a/drivers/gpu/ipu-v3/ipu-di.c
+++ b/drivers/gpu/ipu-v3/ipu-di.c
@@ -447,8 +447,9 @@ static void ipu_di_config_clock(struct ipu_di *di,
error = rate / (sig->mode.pixelclock / 1000);
- dev_dbg(di->ipu->dev, " IPU clock can give %lu with divider %u, error %d.%u%%\n",
- rate, div, (signed)(error - 1000) / 10, error % 10);
+ dev_dbg(di->ipu->dev, " IPU clock can give %lu with divider %u, error %c%d.%d%%\n",
+ rate, div, error < 1000 ? '-' : '+',
+ abs(error - 1000) / 10, abs(error - 1000) % 10);
/* Allow a 1% error */
if (error < 1010 && error >= 990) {