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drm/i915: fix lookup_power_well for power wells without any domain

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The current lookup code wouldn't find a power well if it's not in any
power domain. There wasn't any power wells before but an upcoming patch
will detach the power domains from power well#1 and the MISC IO power
wells, so fix things up accordingly.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446657859-9598-3-git-send-email-imre.deak@intel.com
This commit is contained in:
Imre Deak
2015-11-04 19:24:11 +02:00
parent 56fcfd6333
commit fc17f2274e
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/intel_runtime_pm.c
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@@ -961,10 +961,12 @@ static struct i915_power_well *lookup_power_well(struct drm_i915_private *dev_pr
int power_well_id) int power_well_id)
{ {
struct i915_power_domains *power_domains = &dev_priv->power_domains; struct i915_power_domains *power_domains = &dev_priv->power_domains;
struct i915_power_well *power_well;
int i; int i;
for_each_power_well(i, power_well, POWER_DOMAIN_MASK, power_domains) { for (i = 0; i < power_domains->power_well_count; i++) {
struct i915_power_well *power_well;
power_well = &power_domains->power_wells[i];
if (power_well->data == power_well_id) if (power_well->data == power_well_id)
return power_well; return power_well;
} }