drm/i915: rename GMBUS_PORT_* macros as GMBUS_PIN_*

The specs refer to pin pairs. Start moving towards using pin rather than
port all around to avoid confusion. No functional changes.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_drv.h

@@ -3067,7 +3067,7 @@ extern int intel_setup_gmbus(struct drm_device *dev);
 extern void intel_teardown_gmbus(struct drm_device *dev);
 static inline bool intel_gmbus_is_port_valid(unsigned port)
 {
-	return (port >= GMBUS_PORT_SSC && port <= GMBUS_PORT_DPD);
+	return (port >= GMBUS_PIN_SSC && port <= GMBUS_PIN_DPD);
 }
 
 extern struct i2c_adapter *intel_gmbus_get_adapter(

drivers/gpu/drm/i915/i915_reg.h

@@ -1788,16 +1788,16 @@ enum skl_disp_power_wells {
 #define   GMBUS_RATE_400KHZ	(2<<8) /* reserved on Pineview */
 #define   GMBUS_RATE_1MHZ	(3<<8) /* reserved on Pineview */
 #define   GMBUS_HOLD_EXT	(1<<7) /* 300ns hold time, rsvd on Pineview */
-#define   GMBUS_PORT_DISABLED	0
-#define   GMBUS_PORT_SSC	1
-#define   GMBUS_PORT_VGADDC	2
-#define   GMBUS_PORT_PANEL	3
-#define   GMBUS_PORT_DPD_CHV	3 /* HDMID_CHV */
-#define   GMBUS_PORT_DPC	4 /* HDMIC */
-#define   GMBUS_PORT_DPB	5 /* SDVO, HDMIB */
-#define   GMBUS_PORT_DPD	6 /* HDMID */
-#define   GMBUS_PORT_RESERVED	7 /* 7 reserved */
-#define   GMBUS_NUM_PORTS	(GMBUS_PORT_DPD - GMBUS_PORT_SSC + 1)
+#define   GMBUS_PIN_DISABLED	0
+#define   GMBUS_PIN_SSC		1
+#define   GMBUS_PIN_VGADDC	2
+#define   GMBUS_PIN_PANEL	3
+#define   GMBUS_PIN_DPD_CHV	3 /* HDMID_CHV */
+#define   GMBUS_PIN_DPC		4 /* HDMIC */
+#define   GMBUS_PIN_DPB		5 /* SDVO, HDMIB */
+#define   GMBUS_PIN_DPD		6 /* HDMID */
+#define   GMBUS_PIN_RESERVED	7 /* 7 reserved */
+#define   GMBUS_NUM_PORTS	(GMBUS_PIN_DPD - GMBUS_PIN_SSC + 1)
 #define GMBUS1			0x5104 /* command/status */
 #define   GMBUS_SW_CLR_INT	(1<<31)
 #define   GMBUS_SW_RDY		(1<<30)

drivers/gpu/drm/i915/intel_bios.c

@@ -1133,7 +1133,7 @@ init_vbt_defaults(struct drm_i915_private *dev_priv)
 	struct drm_device *dev = dev_priv->dev;
 	enum port port;
 
-	dev_priv->vbt.crt_ddc_pin = GMBUS_PORT_VGADDC;
+	dev_priv->vbt.crt_ddc_pin = GMBUS_PIN_VGADDC;
 
 	/* Default to having backlight */
 	dev_priv->vbt.backlight.present = true;

drivers/gpu/drm/i915/intel_crt.c

@@ -747,7 +747,7 @@ static int intel_crt_get_modes(struct drm_connector *connector)
 		goto out;
 
 	/* Try to probe digital port for output in DVI-I -> VGA mode. */
-	i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB);
+	i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PIN_DPB);
 	ret = intel_crt_ddc_get_modes(connector, i2c);
 
 out:

drivers/gpu/drm/i915/intel_dvo.c

@@ -80,7 +80,7 @@ static const struct intel_dvo_device intel_dvo_devices[] = {
 		.name = "ch7017",
 		.dvo_reg = DVOC,
 		.slave_addr = 0x75,
-		.gpio = GMBUS_PORT_DPB,
+		.gpio = GMBUS_PIN_DPB,
 		.dev_ops = &ch7017_ops,
 	},
 	{
@@ -364,7 +364,7 @@ static int intel_dvo_get_modes(struct drm_connector *connector)
 	 * that's not the case.
 	 */
 	intel_ddc_get_modes(connector,
-			    intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPC));
+			    intel_gmbus_get_adapter(dev_priv, GMBUS_PIN_DPC));
 	if (!list_empty(&connector->probed_modes))
 		return 1;
 
@@ -505,9 +505,9 @@ void intel_dvo_init(struct drm_device *dev)
 		if (intel_gmbus_is_port_valid(dvo->gpio))
 			gpio = dvo->gpio;
 		else if (dvo->type == INTEL_DVO_CHIP_LVDS)
-			gpio = GMBUS_PORT_SSC;
+			gpio = GMBUS_PIN_SSC;
 		else
-			gpio = GMBUS_PORT_DPB;
+			gpio = GMBUS_PIN_DPB;
 
 		/* Set up the I2C bus necessary for the chip we're probing.
 		 * It appears that everything is on GPIOE except for panels

drivers/gpu/drm/i915/intel_hdmi.c

@@ -1681,18 +1681,18 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 
 	switch (port) {
 	case PORT_B:
-		intel_hdmi->ddc_bus = GMBUS_PORT_DPB;
+		intel_hdmi->ddc_bus = GMBUS_PIN_DPB;
 		intel_encoder->hpd_pin = HPD_PORT_B;
 		break;
 	case PORT_C:
-		intel_hdmi->ddc_bus = GMBUS_PORT_DPC;
+		intel_hdmi->ddc_bus = GMBUS_PIN_DPC;
 		intel_encoder->hpd_pin = HPD_PORT_C;
 		break;
 	case PORT_D:
 		if (IS_CHERRYVIEW(dev))
-			intel_hdmi->ddc_bus = GMBUS_PORT_DPD_CHV;
+			intel_hdmi->ddc_bus = GMBUS_PIN_DPD_CHV;
 		else
-			intel_hdmi->ddc_bus = GMBUS_PORT_DPD;
+			intel_hdmi->ddc_bus = GMBUS_PIN_DPD;
 		intel_encoder->hpd_pin = HPD_PORT_D;
 		break;
 	case PORT_A:

drivers/gpu/drm/i915/intel_lvds.c

@@ -921,7 +921,7 @@ void intel_lvds_init(struct drm_device *dev)
 	if (dmi_check_system(intel_no_lvds))
 		return;
 
-	pin = GMBUS_PORT_PANEL;
+	pin = GMBUS_PIN_PANEL;
 	if (!lvds_is_present_in_vbt(dev, &pin)) {
 		DRM_DEBUG_KMS("LVDS is not present in VBT\n");
 		return;

drivers/gpu/drm/i915/intel_sdvo.c

@@ -2294,7 +2294,7 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
 	if (mapping->initialized && intel_gmbus_is_port_valid(mapping->i2c_pin))
 		pin = mapping->i2c_pin;
 	else
-		pin = GMBUS_PORT_DPB;
+		pin = GMBUS_PIN_DPB;
 
 	sdvo->i2c = intel_gmbus_get_adapter(dev_priv, pin);