drm/i915: Rename the confusing 'plane_id' to 'color_plane'

A variable whose name is 'plane_id' is expected to be of the
enum plane_id type. In this case we have a raw int, which turns
out to refer to the plane of the framebuffer. Rename the variable
to 'color_plane' in line with the trend started earlier.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-13-ville.syrjala@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index b1f30d56b74762d005f351e67843b476f53e8f5a..a26b4eddda252659d94f5c6cab89b895ddf348a9 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4618,7 +4618,7 @@ skl_adjusted_plane_pixel_rate(const struct intel_crtc_state *cstate,
 static int
 skl_compute_plane_wm_params(const struct intel_crtc_state *cstate,
                            const struct intel_plane_state *intel_pstate,
-                           struct skl_wm_params *wp, int plane_id)
+                           struct skl_wm_params *wp, int color_plane)
 {
        struct intel_plane *plane = to_intel_plane(intel_pstate->base.plane);
        struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
@@ -4630,7 +4630,7 @@ skl_compute_plane_wm_params(const struct intel_crtc_state *cstate,
        bool apply_memory_bw_wa = skl_needs_memory_bw_wa(state);
 
        /* only NV12 format has two planes */
-       if (plane_id == 1 && fb->format->format != DRM_FORMAT_NV12) {
+       if (color_plane == 1 && fb->format->format != DRM_FORMAT_NV12) {
                DRM_DEBUG_KMS("Non NV12 format have single plane\n");
                return -EINVAL;
        }
@@ -4655,10 +4655,10 @@ skl_compute_plane_wm_params(const struct intel_crtc_state *cstate,
                wp->width = drm_rect_width(&intel_pstate->base.src) >> 16;
        }
 
-       if (plane_id == 1 && wp->is_planar)
+       if (color_plane == 1 && wp->is_planar)
                wp->width /= 2;
 
-       wp->cpp = fb->format->cpp[plane_id];
+       wp->cpp = fb->format->cpp[color_plane];
        wp->plane_pixel_rate = skl_adjusted_plane_pixel_rate(cstate,
                                                             intel_pstate);