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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-02-09 13:35:24 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-02-09 21:51:56 +0200 |
| commit | 28f5f8884e7cb9cff5375db487a8ca7cd3fd599f (patch) | |
| tree | c042d4bdc571d8ddc57c0903d83d91bc8216b057 /drivers/gpu/drm/i915/display/hsw_ips.c | |
| parent | f3b603de2ff41eb915d75163f7212bbf177950d1 (diff) | |
| download | linux-28f5f8884e7cb9cff5375db487a8ca7cd3fd599f.tar.gz linux-28f5f8884e7cb9cff5375db487a8ca7cd3fd599f.tar.bz2 linux-28f5f8884e7cb9cff5375db487a8ca7cd3fd599f.zip | |
drm/i915: Extract hsw_ips_get_config()
Pull the IPS state readout into hsw_ips.c.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220209113526.7595-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/hsw_ips.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/hsw_ips.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/hsw_ips.c b/drivers/gpu/drm/i915/display/hsw_ips.c index fb34ef615025..38014e0cc9ad 100644 --- a/drivers/gpu/drm/i915/display/hsw_ips.c +++ b/drivers/gpu/drm/i915/display/hsw_ips.c @@ -249,3 +249,23 @@ int hsw_ips_compute_config(struct intel_atomic_state *state, return 0; } + +void hsw_ips_get_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + + if (!hsw_crtc_supports_ips(crtc)) + return; + + if (IS_HASWELL(i915)) { + crtc_state->ips_enabled = intel_de_read(i915, IPS_CTL) & IPS_ENABLE; + } else { + /* + * We cannot readout IPS state on broadwell, set to + * true so we can set it to a defined state on first + * commit. + */ + crtc_state->ips_enabled = true; + } +} |