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authorJames Cowgill <james.cowgill@blaize.com>2023-04-12 17:35:07 +0000
committerNeil Armstrong <neil.armstrong@linaro.org>2023-04-17 09:43:05 +0200
commitab4f869fba6119997f7630d600049762a2b014fa (patch)
tree1cb46267f4c22e9ba6d774b3757d52bac1f79a71
parent5dd45b66742a1f3cfa9a92dc0ac8714c7708ee6c (diff)
drm/panel: otm8009a: Set backlight parent to panel device
This is the logical place to put the backlight device, and it also fixes a kernel crash if the MIPI host is removed. Previously the backlight device would be unregistered twice when this happened - once as a child of the MIPI host through `mipi_dsi_host_unregister`, and once when the panel device is destroyed. Fixes: 12a6cbd4f3f1 ("drm/panel: otm8009a: Use new backlight API") Signed-off-by: James Cowgill <james.cowgill@blaize.com> Cc: stable@vger.kernel.org Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230412173450.199592-1-james.cowgill@blaize.com
-rw-r--r--drivers/gpu/drm/panel/panel-orisetech-otm8009a.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
index b4729a94c34a..898b892f1143 100644
--- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
+++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
@@ -471,7 +471,7 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
DRM_MODE_CONNECTOR_DSI);
ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev),
- dsi->host->dev, ctx,
+ dev, ctx,
&otm8009a_backlight_ops,
NULL);
if (IS_ERR(ctx->bl_dev)) {