diff mbox series

[2/3] drm/i915: Do not set any power wells when there is no display

Message ID 20210322181055.207619-2-jose.souza@intel.com (mailing list archive)
State New, archived
Headers show
Series [1/3] drm/i915: Warn when display irq functions are called without display | expand

Commit Message

Souza, Jose March 22, 2021, 6:10 p.m. UTC 
Power wells are only part of display block and not necessary when
running a headless driver.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_power.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 7e0eaa872350..e6a3b3e6b1f7 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4673,7 +4673,10 @@  int intel_power_domains_init(struct drm_i915_private *dev_priv)
 	 * The enabling order will be from lower to higher indexed wells,
 	 * the disabling order is reversed.
 	 */
-	if (IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv)) {
+	if (!HAS_DISPLAY(dev_priv)) {
+		power_domains->power_well_count = 0;
+		err = 0;
+	} else if (IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv)) {
 		err = set_power_wells_mask(power_domains, tgl_power_wells,
 					   BIT_ULL(TGL_DISP_PW_TC_COLD_OFF));
 	} else if (IS_ROCKETLAKE(dev_priv)) {