Add code control in macro to refine the dependency of i915.

drivers/gpu/drm/bridge/Kconfig

@@ -379,6 +379,13 @@ config DRM_TI_TPD12S015
 	  Texas Instruments TPD12S015 HDMI level shifter and ESD protection
 	  driver.
 
+config DRM_I2C_TI_983
+	tristate "TI DS90UB983/DS90UB984/DS90UBMCU Serdes serializer deserializer support"
+	depends on DRM_BRIDGE
+	default y
+	help
+	  Texas Instruments DS90UB983 and DS90UB984 Serdes driver
+
 source "drivers/gpu/drm/bridge/analogix/Kconfig"
 
 source "drivers/gpu/drm/bridge/adv7511/Kconfig"

drivers/gpu/drm/bridge/Makefile

@@ -38,4 +38,4 @@ obj-y += analogix/
 obj-y += cadence/
 obj-y += imx/
 obj-y += synopsys/
-obj-y += ti/
+obj-$(CONFIG_DRM_I2C_TI_983) += ti/

drivers/gpu/drm/bridge/ti/Makefile

@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 # Makefile for max serdes/deserdes i2c drivers.
 #
-CONFIG_DRM_I2C_TI_983=y
-ccflags-y +=-DDEBUG
+ccflags-y += -DDEBUG
 fpd_dp_ser_drv-obj := fpd_dp_ser_drv.o
-obj-$(CONFIG_DRM_I2C_TI_983)+=fpd_dp_ser_drv.o
+obj-$(CONFIG_DRM_I2C_TI_983) += fpd_dp_ser_drv.o

drivers/gpu/drm/i915/display/intel_backlight.c

@@ -1798,8 +1798,10 @@ void intel_backlight_init_funcs(struct intel_panel *panel)
 			connector->panel.backlight.power = intel_pps_backlight_power;
 	}
 
+#ifdef CONFIG_DRM_I2C_TI_983
 	if (intel_dp_mcu_init_backlight_funcs(connector) == 0)
 		return;
+#endif
 
 	/* We're using a standard PWM backlight interface */
 	panel->backlight.funcs = &pwm_bl_funcs;

drivers/gpu/drm/i915/display/intel_dp.c

@@ -5494,6 +5494,8 @@ void intel_dp_mst_resume(struct drm_i915_private *dev_priv)
 	}
 }
 
+
+#ifdef CONFIG_DRM_I2C_TI_983
 extern struct i2c_adapter *i2c_adap_mcu;
 
 char intel_dp_ser_mcu_read_reg(struct drm_device *dev, struct i2c_adapter *adapter, u8 reg_addr, u8 *val)
@@ -5683,3 +5685,4 @@ int intel_dp_mcu_init_backlight_funcs(struct intel_connector *intel_connector)
 
 	return 0;
 }
+#endif

drivers/gpu/drm/i915/display/intel_panel.h

@@ -50,6 +50,8 @@ void intel_panel_add_vbt_sdvo_fixed_mode(struct intel_connector *connector);
 void intel_panel_add_encoder_fixed_mode(struct intel_connector *connector,
 					struct intel_encoder *encoder);
 
+#ifdef CONFIG_DRM_I2C_TI_983
 int intel_dp_mcu_init_backlight_funcs(struct intel_connector *intel_connector);
+#endif
 
 #endif /* __INTEL_PANEL_H__ */