drm/amdgpu: add core driver (v4)

This adds the non-asic specific core driver code.

v2: remove extra kconfig option
v3: implement minor fixes from Fengguang Wu
v4: fix cast in amdgpu_ucode.c

Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h
new file mode 100644
index 0000000..2bdec40
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __ATOMBIOS_ENCODER_H__
+#define __ATOMBIOS_ENCODER_H__
+
+u8
+amdgpu_atombios_encoder_get_backlight_level(struct amdgpu_encoder *amdgpu_encoder);
+void
+amdgpu_atombios_encoder_set_backlight_level(struct amdgpu_encoder *amdgpu_encoder,
+				     u8 level);
+void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encoder,
+				     struct drm_connector *drm_connector);
+void
+amdgpu_atombios_encoder_fini_backlight(struct amdgpu_encoder *amdgpu_encoder);
+bool amdgpu_atombios_encoder_is_digital(struct drm_encoder *encoder);
+bool amdgpu_atombios_encoder_mode_fixup(struct drm_encoder *encoder,
+				 const struct drm_display_mode *mode,
+				 struct drm_display_mode *adjusted_mode);
+int amdgpu_atombios_encoder_get_encoder_mode(struct drm_encoder *encoder);
+void
+amdgpu_atombios_encoder_setup_dig_encoder(struct drm_encoder *encoder,
+				   int action, int panel_mode);
+void
+amdgpu_atombios_encoder_setup_dig_transmitter(struct drm_encoder *encoder, int action,
+				       uint8_t lane_num, uint8_t lane_set);
+bool
+amdgpu_atombios_encoder_set_edp_panel_power(struct drm_connector *connector,
+				     int action);
+void
+amdgpu_atombios_encoder_dpms(struct drm_encoder *encoder, int mode);
+void
+amdgpu_atombios_encoder_set_crtc_source(struct drm_encoder *encoder);
+void
+amdgpu_atombios_encoder_init_dig(struct amdgpu_device *adev);
+enum drm_connector_status
+amdgpu_atombios_encoder_dac_detect(struct drm_encoder *encoder,
+			    struct drm_connector *connector);
+enum drm_connector_status
+amdgpu_atombios_encoder_dig_detect(struct drm_encoder *encoder,
+			    struct drm_connector *connector);
+void
+amdgpu_atombios_encoder_setup_ext_encoder_ddc(struct drm_encoder *encoder);
+void
+amdgpu_atombios_encoder_set_bios_scratch_regs(struct drm_connector *connector,
+				       struct drm_encoder *encoder,
+				       bool connected);
+struct amdgpu_encoder_atom_dig *
+amdgpu_atombios_encoder_get_lcd_info(struct amdgpu_encoder *encoder);
+struct amdgpu_encoder_atom_dig *
+amdgpu_atombios_encoder_get_dig_info(struct amdgpu_encoder *amdgpu_encoder);
+
+#endif