Commit ab4f869f authored by James Cowgill's avatar James Cowgill Committed by Neil Armstrong

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: 12a6cbd4 ("drm/panel: otm8009a: Use new backlight API")
Signed-off-by: default avatarJames Cowgill <james.cowgill@blaize.com>
Cc: stable@vger.kernel.org
Reviewed-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230412173450.199592-1-james.cowgill@blaize.com
parent 5dd45b66
...@@ -471,7 +471,7 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi) ...@@ -471,7 +471,7 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
DRM_MODE_CONNECTOR_DSI); DRM_MODE_CONNECTOR_DSI);
ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev), ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev),
dsi->host->dev, ctx, dev, ctx,
&otm8009a_backlight_ops, &otm8009a_backlight_ops,
NULL); NULL);
if (IS_ERR(ctx->bl_dev)) { if (IS_ERR(ctx->bl_dev)) {
......
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