[PATCH 4/4] radeon: fall back to ACPI EDID retrieval

[Christian König]

Am 27.07.20 um 22:53 schrieb Daniel Dadap:
> Fall back to retrieving the EDID via the ACPI _DDC method, when present
> for notebook internal panels, when retrieving BIOS-embedded EDIDs.
>
> Signed-off-by: Daniel Dadap <ddadap at nvidia.com>
> ---
>   drivers/gpu/drm/radeon/radeon_combios.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
> index c3e49c973812..de801d9fca54 100644
> --- a/drivers/gpu/drm/radeon/radeon_combios.c
> +++ b/drivers/gpu/drm/radeon/radeon_combios.c
> @@ -401,9 +401,8 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
>   struct edid *
>   radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
>   {
> -	struct edid *edid;
> -
>   	if (rdev->mode_info.bios_hardcoded_edid) {
> +		struct edid *edid;

That's an unrelated an incorrect style change. You need a blank line 
after declaration.

>   		edid = kmalloc(rdev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL);
>   		if (edid) {
>   			memcpy((unsigned char *)edid,
> @@ -412,7 +411,8 @@ radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
>   			return edid;
>   		}
>   	}
> -	return NULL;
> +
> +	return drm_get_edid_acpi();

In general a good idea, but I'm wondering if we should really do this so 
unconditionally here.

Regards,
Christian.

>   }
>   
>   static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rdev,