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Commit c6bb5966 authored by James Cowgill's avatar James Cowgill Committed by Greg Kroah-Hartman
Browse files

drm/panel: otm8009a: Set backlight parent to panel device 



commit ab4f869fba6119997f7630d600049762a2b014fa upstream.

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


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3e770362

drivers/gpu/drm/panel/panel-orisetech-otm8009a.c

+1 −1
Original line number Diff line number Diff line
@@ -460,7 +460,7 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi) 
	ctx->panel.funcs = &otm8009a_drm_funcs;



	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)) {