drivers/intel/gma: Drop unused INTEL_DP

Change-Id: I786848cd48c6fcfecf9b72c60623cadcfcbb7db7
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/19803
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/drivers/intel/gma/i915.h

@@ -81,201 +81,7 @@ enum {
 unsigned long io_i915_read32(unsigned long addr);
 void io_i915_write32(unsigned long val, unsigned long addr);
 
-/*
- * To communicate to and control the extracted-from-kernel code,
- * we need this struct. It has a counterpart in the ARM code, so
- * there is a precedent.
- */
-
-#define DP_RECEIVER_CAP_SIZE	0xf
-#define DP_LINK_STATUS_SIZE	6
-#define DP_LINK_CHECK_TIMEOUT	(10 * 1000)
-
-#define DP_LINK_CONFIGURATION_SIZE	9
-
-struct intel_dp_m_n {
-	uint32_t	tu;
-	uint32_t	gmch_m;
-	uint32_t	gmch_n;
-	uint32_t	link_m;
-	uint32_t	link_n;
-};
-
-struct intel_dp {
-	int gen; // 6 for link, 7 for wtm2
-	int has_pch_split; // 1 for link and wtm2
-	int has_pch_cpt; // 1 for everything we know about.
-	int is_haswell;
-	/* output register offset in MMIO space. Usually DP_A */
-	u32 output_reg;
-	/* The initial value of the DP register.
-	 * Mainboards can set this to a non-zero
-	 * value in the case that there are undetectable
-	 * but essential parameters.
-	 */
-	u32 DP;
-	uint8_t  link_configuration[DP_LINK_CONFIGURATION_SIZE];
-	u32 color_range;
-	/* these paramaters are determined after reading the DPCD */
-	int dpms_mode;
-	uint8_t link_bw;
-	uint8_t lane_count;
-	/* This data is read from the panel via the AUX channel.*/
-	uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
-	int type;
-	int edp;
-	int is_pch_edp;
-	/* state related to training. */
-	uint8_t	train_set[4];
-	/* Determined from EDID or coreboot hard-sets. */
-	int panel_power_up_delay;
-	int panel_power_down_delay;
-	int panel_power_cycle_delay;
-	int backlight_on_delay;
-	int backlight_off_delay;
-	int want_panel_vdd;
-	u32 clock;
-	int port;
-	int pipe;
-	int plane;
-	int pipe_bits_per_pixel;
-	/* i2c on aux is ... interesting.
-	 * Before you do an i2c cycle, you need to set the address.
-	 * This requires we remember it from one moment to the next.
-	 * Remember it here.
-	 */
-	u16 address;
-	/* timing parameters for aux channel IO. They used to compute these on
-	 * each and every entry to the functions, which is kind of stupid, and it had
-	 * errors anyway.
-	 * note: you can get these from watching YABEL output. E.g.:
-	 * you see an outb of 0x802300e1 to 64010. the 3 is the precharge
-	 * and the e1 is the clock divider.
-	 */
-	u32 aux_clock_divider;
-	u32 precharge;
-	/* EDID, raw and processed */
-	u8 rawedid[256];
-	int edidlen;
-	struct edid edid;
-	/* computed values needed for "i915" registers */
-	int bytes_per_pixel;
-	u32 htotal;
-	u32 hblank;
-	u32 hsync;
-	u32 vtotal;
-	u32 vblank;
-	u32 vsync;
-	u32 pfa_sz;
-	u32 pfa_pos;
-	u32 pfa_ctl;
-	u32 pipesrc;
-	u32 stride;
-	struct intel_dp_m_n m_n;
-	u32 flags;
-	u32 transcoder;
-	/* parameters computed by the early startup, to be used
-	 * in the GMA code.
-	 */
-	u8 *graphics;
-	/* physical address, not to be used directly. */
-	u64 physbase;
-};
-
-/* we may yet need these. */
-void intel_dp_mode_set(struct intel_dp *intel_dp);
-void intel_dp_start_link_train(struct intel_dp *intel_dp);
-
-int intel_dp_i2c_init(struct intel_dp *intel_dp);
-int intel_dp_i2c_aux_ch(struct intel_dp *intel_dp,
-			int mode, uint8_t write_byte, uint8_t *read_byte);
-
-int intel_dp_get_dpcd(struct intel_dp *intel_dp);
-struct edid *intel_dp_get_edid(struct intel_dp *intel_dp);
-
-void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
-void ironlake_edp_pll_on(void);
-void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp);
-void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, int sync);
-int intel_dp_get_max_downspread(struct intel_dp *intel_dp, u8 *max_downspread);
-void ironlake_edp_panel_on(struct intel_dp *intel_dp);
-void ironlake_edp_backlight_on(struct intel_dp *intel_dp);
-/* needed only on haswell. */
-void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp, int port);
-int intel_dp_aux_ch(struct intel_dp *intel_dp,
-		    uint8_t *send, int send_bytes,
-		    uint8_t *recv, int recv_size);
-void unpack_aux(u32 src, uint8_t *dst, int dst_bytes);
-int intel_channel_eq_ok(struct intel_dp *intel_dp,
-		    uint8_t link_status[DP_LINK_STATUS_SIZE]);
-void ironlake_edp_panel_off(struct intel_dp *intel_dp);
-void ironlake_edp_backlight_off(struct intel_dp *intel_dp);
-
-/* drm_dp_helper.c */
-int drm_dp_channel_eq_ok(u8 link_status[DP_LINK_STATUS_SIZE],
-			 int lane_count);
-int drm_dp_clock_recovery_ok(u8 link_status[DP_LINK_STATUS_SIZE],
-			     int lane_count);
-u8 drm_dp_get_adjust_request_voltage(u8 link_status[DP_LINK_STATUS_SIZE],
-				     int lane);
-u8 drm_dp_get_adjust_request_pre_emphasis(u8 link_status[DP_LINK_STATUS_SIZE],
-					  int lane);
-
-
-void intel_dp_wait_reg(unsigned long addr,
-		       unsigned long val);
-
-void intel_dp_wait_panel_power_control(unsigned long val);
-
-void intel_dp_compute_m_n(unsigned int bits_per_pixel,
-                          unsigned int nlanes,
-                          unsigned int pixel_clock,
-                          unsigned int link_clock,
-                          struct intel_dp_m_n *m_n);
-
-u32 intel_ddi_calc_transcoder_flags(u32 pipe_bpp,
-				    enum port port,
-				    enum pipe pipe,
-				    int type,
-				    int lane_count,
-				    int pf_sz,
-				    u8 phsync,
-				    u8 pvsync);
-
-enum transcoder intel_ddi_get_transcoder(enum port port,
-					 enum pipe pipe);
-
-void intel_dp_set_m_n_regs(struct intel_dp *intel_dp);
-int intel_dp_bw_code_to_link_rate(u8 link_bw);
-void intel_dp_set_resolution(struct intel_dp *intel_dp);
-
-int intel_dp_i2c_write(struct intel_dp *intel_dp,
-		       u8 val);
-
-int intel_dp_i2c_read(struct intel_dp *intel_dp,
-		      u8 *val);
-
-int intel_dp_set_bw(struct intel_dp *intel_dp);
-int intel_dp_set_lane_count(struct intel_dp *intel_dp);
-int intel_dp_set_training_lane0(struct intel_dp *intel_dp,
-				u8 val);
-int intel_dp_set_training_pattern(struct intel_dp *intel_dp,
-				  u8 pat);
-
-int intel_dp_get_link_status(struct intel_dp *intel_dp,
-			     uint8_t link_status[DP_LINK_STATUS_SIZE]);
-
-int intel_dp_get_training_pattern(struct intel_dp *intel_dp,
-				  u8 *recv);
-
-int intel_dp_get_lane_count(struct intel_dp *intel_dp,
-			    u8 *recv);
-
-int intel_dp_get_lane_align_status(struct intel_dp *intel_dp,
-				   u8 *recv);
-
 void intel_prepare_ddi(void);
-void intel_ddi_set_pipe_settings(struct intel_dp *intel_dp);
 
 int gtt_poll(u32 reg, u32 mask, u32 value);
 void gtt_write(u32 reg, u32 data);
@@ -295,14 +101,8 @@ drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *
 const struct i915_gpu_controller_info *
 intel_gma_get_controller_info(void);
 
-int i915lightup(unsigned int physbase, unsigned int mmio,
-		unsigned int gfx, unsigned int init_fb);
-int panel_lightup(struct intel_dp *dp, unsigned int init_fb);
 void *igd_make_opregion(void);
 
-/* display.c */
-void compute_display_params(struct intel_dp *dp);
-
 /* vbt.c */
 struct device;
 void