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drm/i915: Introduce i9xx_has_pps() 

Add a small helper to determine if we have the panel power
sequencer or not. We'll make PNV an exceptional case so
that we can unset .is_mobile for the desktop variant.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190318165633.28924-3-ville.syrjala@linux.intel.com
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
This commit is contained in:
Ville Syrjälä 2019-03-18 18:56:30 +02:00
parent b7c8093fac
commit 9e7d569924
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/drm/i915/intel_display.c
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@ -1442,6 +1442,14 @@ static void chv_enable_pll(struct intel_crtc *crtc,
}
}
static bool i9xx_has_pps(struct drm_i915_private *dev_priv)
{
if (IS_I830(dev_priv))
return false;
return IS_PINEVIEW(dev_priv) || IS_MOBILE(dev_priv);
}
static void i9xx_enable_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *crtc_state)
{
@ -1453,7 +1461,7 @@ static void i9xx_enable_pll(struct intel_crtc *crtc,
assert_pipe_disabled(dev_priv, crtc->pipe);
/* PLL is protected by panel, make sure we can write it */
if (IS_MOBILE(dev_priv) && !IS_I830(dev_priv))
if (i9xx_has_pps(dev_priv))
assert_panel_unlocked(dev_priv, crtc->pipe);
/*