[PATCH] drm/radeon/kms: fix fans after resume

[Michel Dänzer]

On Don, 2012-03-29 at 19:04 -0400, alexdeucher at gmail.com wrote: 
> From: Alex Deucher <alexander.deucher at amd.com>
> 
> On pre-R600 asics, the SpeedFanControl table is not
> executed as part of ASIC_Init as it is on newer asics.
> 
> Fixes:
> https://bugzilla.kernel.org/show_bug.cgi?id=29412
> 
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Cc: stable at vger.kernel.org
> ---
>  drivers/gpu/drm/radeon/atom.c |   15 ++++++++++++++-
>  drivers/gpu/drm/radeon/atom.h |    1 +
>  2 files changed, 15 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
> index d1bd239..5ce9bf5 100644
> --- a/drivers/gpu/drm/radeon/atom.c
> +++ b/drivers/gpu/drm/radeon/atom.c
> [...]
> @@ -1317,7 +1320,17 @@ int atom_asic_init(struct atom_context *ctx)
>  
>  	if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
>  		return 1;
> -	return atom_execute_table(ctx, ATOM_CMD_INIT, ps);
> +	ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps);
> +	if (ret)
> +		return ret;
> +
> +	memset(ps, 0, 64);
> +
> +	if (rdev->family < CHIP_R600) {
> +		if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL))
> +			atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps);

Should the return value of atom_execute_table() be assigned to ret here
as well? Either way,

Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer