From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Replace the hand rolled RMW with intel_de_rmw() in the DVO port enable/disable functions. Also switch to intel_de_posting_read() for the posting read (though maybe it should be just be nuked...). Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_dvo.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dvo.c b/drivers/gpu/drm/i915/display/intel_dvo.c index a5c464c82e5c..c590a92205f0 100644 --- a/drivers/gpu/drm/i915/display/intel_dvo.c +++ b/drivers/gpu/drm/i915/display/intel_dvo.c @@ -185,11 +185,11 @@ static void intel_disable_dvo(struct intel_atomic_state *state, struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_dvo *intel_dvo = enc_to_dvo(encoder); enum port port = encoder->port; - u32 temp = intel_de_read(i915, DVO(port)); intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false); - intel_de_write(i915, DVO(port), temp & ~DVO_ENABLE); - intel_de_read(i915, DVO(port)); + + intel_de_rmw(i915, DVO(port), DVO_ENABLE, 0); + intel_de_posting_read(i915, DVO(port)); } static void intel_enable_dvo(struct intel_atomic_state *state, @@ -200,14 +200,13 @@ static void intel_enable_dvo(struct intel_atomic_state *state, struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_dvo *intel_dvo = enc_to_dvo(encoder); enum port port = encoder->port; - u32 temp = intel_de_read(i915, DVO(port)); intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev, &pipe_config->hw.mode, &pipe_config->hw.adjusted_mode); - intel_de_write(i915, DVO(port), temp | DVO_ENABLE); - intel_de_read(i915, DVO(port)); + intel_de_rmw(i915, DVO(port), 0, DVO_ENABLE); + intel_de_posting_read(i915, DVO(port)); intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true); } -- 2.37.4
