drm/i915: use for_each_power_well in lookup_power_well()

Use the nice helper function to make the implementation simpler.

v2: Rebase.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180820233139.11936-3-paulo.r.zanoni@intel.com

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index dd5d1ba..33dbbd9 100644 (file)
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -1087,16 +1087,11 @@ static struct i915_power_well *
 lookup_power_well(struct drm_i915_private *dev_priv,
                  enum i915_power_well_id power_well_id)
 {
-       struct i915_power_domains *power_domains = &dev_priv->power_domains;
-       int i;
-
-       for (i = 0; i < power_domains->power_well_count; i++) {
-               struct i915_power_well *power_well;
+       struct i915_power_well *power_well;
 
-               power_well = &power_domains->power_wells[i];
+       for_each_power_well(dev_priv, power_well)
                if (power_well->desc->id == power_well_id)
                        return power_well;
-       }
 
        /*
         * It's not feasible to add error checking code to the callers since
@@ -1106,7 +1101,7 @@ lookup_power_well(struct drm_i915_private *dev_priv,
         * our driver.
         */
        WARN(1, "Power well %d not defined for this platform\n", power_well_id);
-       return &power_domains->power_wells[0];
+       return &dev_priv->power_domains.power_wells[0];
 }
 
 #define BITS_SET(val, bits) (((val) & (bits)) == (bits))