[RFC 2/5] drm/i915: Rename pwm_* backlight callbacks to ext_pwm_*

[Lyude Paul <lyude@redhat.com>]

Since we're going to need to add a set of lower-level PWM backlight
control hooks to be shared by normal backlight controls and HDR
backlight controls in SDR mode, let's add a prefix to the external PWM
backlight functions so that the difference between them and the high
level PWM-only backlight functions is a bit more obvious.

This introduces no functional changes.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: thaytan@noraisin.net
Cc: Vasily Khoruzhick <anarsoul@gmail.com>
---
 drivers/gpu/drm/i915/display/intel_panel.c | 24 +++++++++++-----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 9f23bac0d7924..c0e36244bb07d 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -589,7 +589,7 @@ static u32 bxt_get_backlight(struct intel_connector *connector)
 			     BXT_BLC_PWM_DUTY(panel->backlight.controller));
 }
 
-static u32 pwm_get_backlight(struct intel_connector *connector)
+static u32 ext_pwm_get_backlight(struct intel_connector *connector)
 {
 	struct intel_panel *panel = &connector->panel;
 	struct pwm_state state;
@@ -666,7 +666,7 @@ static void bxt_set_backlight(const struct drm_connector_state *conn_state, u32
 		       BXT_BLC_PWM_DUTY(panel->backlight.controller), level);
 }
 
-static void pwm_set_backlight(const struct drm_connector_state *conn_state, u32 level)
+static void ext_pwm_set_backlight(const struct drm_connector_state *conn_state, u32 level)
 {
 	struct intel_panel *panel = &to_intel_connector(conn_state->connector)->panel;
 
@@ -835,7 +835,7 @@ static void cnp_disable_backlight(const struct drm_connector_state *old_conn_sta
 		       tmp & ~BXT_BLC_PWM_ENABLE);
 }
 
-static void pwm_disable_backlight(const struct drm_connector_state *old_conn_state)
+static void ext_pwm_disable_backlight(const struct drm_connector_state *old_conn_state)
 {
 	struct intel_connector *connector = to_intel_connector(old_conn_state->connector);
 	struct intel_panel *panel = &connector->panel;
@@ -1168,8 +1168,8 @@ static void cnp_enable_backlight(const struct intel_crtc_state *crtc_state,
 		       pwm_ctl | BXT_BLC_PWM_ENABLE);
 }
 
-static void pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
-				 const struct drm_connector_state *conn_state)
+static void ext_pwm_enable_backlight(const struct intel_crtc_state *crtc_state,
+				     const struct drm_connector_state *conn_state)
 {
 	struct intel_connector *connector = to_intel_connector(conn_state->connector);
 	struct intel_panel *panel = &connector->panel;
@@ -1890,8 +1890,8 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
 	return 0;
 }
 
-static int pwm_setup_backlight(struct intel_connector *connector,
-			       enum pipe pipe)
+static int ext_pwm_setup_backlight(struct intel_connector *connector,
+				   enum pipe pipe)
 {
 	struct drm_device *dev = connector->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -2065,11 +2065,11 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel)
 		panel->backlight.hz_to_pwm = pch_hz_to_pwm;
 	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
 		if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI) {
-			panel->backlight.setup = pwm_setup_backlight;
-			panel->backlight.enable = pwm_enable_backlight;
-			panel->backlight.disable = pwm_disable_backlight;
-			panel->backlight.set = pwm_set_backlight;
-			panel->backlight.get = pwm_get_backlight;
+			panel->backlight.setup = ext_pwm_setup_backlight;
+			panel->backlight.enable = ext_pwm_enable_backlight;
+			panel->backlight.disable = ext_pwm_disable_backlight;
+			panel->backlight.set = ext_pwm_set_backlight;
+			panel->backlight.get = ext_pwm_get_backlight;
 		} else {
 			panel->backlight.setup = vlv_setup_backlight;
 			panel->backlight.enable = vlv_enable_backlight;
-- 
2.26.2