[Intel-gfx] [PATCH 3/3] drm/i915: move gmbus restore to i915_restore_display

Jani Nikula jani.nikula at intel.com
Thu Sep 10 09:52:27 UTC 2020


Logically part of the display restore.

Note: This has been in place since the introduction of gmbus
support. The gmbus code also does the resets before transfers. Is this
really needed, or a historical accident?

Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/i915_suspend.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 4a93247942b7..09026c4db7d0 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -69,6 +69,8 @@ static void i915_restore_display(struct drm_i915_private *dev_priv)
 		I915_WRITE(FBC_CONTROL, dev_priv->regfile.saveFBC_CONTROL);
 
 	intel_vga_redisable(dev_priv);
+
+	intel_gmbus_reset(dev_priv);
 }
 
 int i915_save_state(struct drm_i915_private *dev_priv)
@@ -141,7 +143,5 @@ int i915_restore_state(struct drm_i915_private *dev_priv)
 			I915_WRITE(SWF3(i), dev_priv->regfile.saveSWF3[i]);
 	}
 
-	intel_gmbus_reset(dev_priv);
-
 	return 0;
 }
-- 
2.20.1



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