[PATCH] drm/radeon/kms: evergreen & ni reset SPI block on CP resume

[Alex Deucher]

On Wed, Aug 24, 2011 at 4:00 PM,  <j.glisse at gmail.com> wrote:
> From: Jerome Glisse <jglisse at redhat.com>
>
> For some reason SPI block is in broken state after module
> unloading. This lead to broken rendering after reloading
> module. Fix this by reseting SPI block in CP resume function

Looks good to me.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

>
> Signed-off-by: Jerome Glisse <jglisse at redhat.com
> ---
>  drivers/gpu/drm/radeon/evergreen.c |    1 +
>  drivers/gpu/drm/radeon/ni.c        |    1 +
>  2 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index fb5fa08..d8d71a3 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -1357,6 +1357,7 @@ int evergreen_cp_resume(struct radeon_device *rdev)
>                                 SOFT_RESET_PA |
>                                 SOFT_RESET_SH |
>                                 SOFT_RESET_VGT |
> +                                SOFT_RESET_SPI |
>                                 SOFT_RESET_SX));
>        RREG32(GRBM_SOFT_RESET);
>        mdelay(15);
> diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
> index 44c4750..a2e00fa 100644
> --- a/drivers/gpu/drm/radeon/ni.c
> +++ b/drivers/gpu/drm/radeon/ni.c
> @@ -1159,6 +1159,7 @@ int cayman_cp_resume(struct radeon_device *rdev)
>                                 SOFT_RESET_PA |
>                                 SOFT_RESET_SH |
>                                 SOFT_RESET_VGT |
> +                                SOFT_RESET_SPI |
>                                 SOFT_RESET_SX));
>        RREG32(GRBM_SOFT_RESET);
>        mdelay(15);
> --
> 1.7.1
>
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