gma500: Replace SDVO code with slightly modified version from i915

Our current SDVO implementation is not working properly, so replace it with
a modified version of the i915. Further testing and debugging is needed to make
sure we can handle the different SDVO setups and wiring.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/psb_drv.h

@@ -260,6 +260,16 @@ struct psb_intel_opregion {
 	int enabled;
 };
 
+struct sdvo_device_mapping {
+	u8 initialized;
+	u8 dvo_port;
+	u8 slave_addr;
+	u8 dvo_wiring;
+	u8 i2c_pin;
+	u8 i2c_speed;
+	u8 ddc_pin;
+};
+
 struct intel_gmbus {
 	struct i2c_adapter adapter;
 	struct i2c_adapter *force_bit;
@@ -345,6 +355,15 @@ struct drm_psb_private {
 	/* gmbus */
 	struct intel_gmbus *gmbus;
 
+	/* Used by SDVO */
+	int crt_ddc_pin;
+	/* FIXME: The mappings should be parsed from bios but for now we can
+		  pretend there are no mappings available */
+	struct sdvo_device_mapping sdvo_mappings[2];
+	u32 hotplug_supported_mask;
+	struct drm_property *broadcast_rgb_property;
+	struct drm_property *force_audio_property;
+
 	/*
 	 * LVDS info
 	 */

drivers/gpu/drm/gma500/psb_intel_display.c

@@ -552,6 +552,14 @@ void psb_intel_encoder_commit(struct drm_encoder *encoder)
 	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
 }
 
+void psb_intel_encoder_destroy(struct drm_encoder *encoder)
+{
+	struct psb_intel_encoder *intel_encoder = to_psb_intel_encoder(encoder);
+
+	drm_encoder_cleanup(encoder);
+	kfree(intel_encoder);
+}
+
 static bool psb_intel_crtc_mode_fixup(struct drm_crtc *crtc,
 				  struct drm_display_mode *mode,
 				  struct drm_display_mode *adjusted_mode)

drivers/gpu/drm/gma500/psb_intel_drv.h

@@ -39,6 +39,25 @@
 #define INTEL_I2C_BUS_DVO 1
 #define INTEL_I2C_BUS_SDVO 2
 
+/* Intel Pipe Clone Bit */
+#define INTEL_HDMIB_CLONE_BIT 1
+#define INTEL_HDMIC_CLONE_BIT 2
+#define INTEL_HDMID_CLONE_BIT 3
+#define INTEL_HDMIE_CLONE_BIT 4
+#define INTEL_HDMIF_CLONE_BIT 5
+#define INTEL_SDVO_NON_TV_CLONE_BIT 6
+#define INTEL_SDVO_TV_CLONE_BIT 7
+#define INTEL_SDVO_LVDS_CLONE_BIT 8
+#define INTEL_ANALOG_CLONE_BIT 9
+#define INTEL_TV_CLONE_BIT 10
+#define INTEL_DP_B_CLONE_BIT 11
+#define INTEL_DP_C_CLONE_BIT 12
+#define INTEL_DP_D_CLONE_BIT 13
+#define INTEL_LVDS_CLONE_BIT 14
+#define INTEL_DVO_TMDS_CLONE_BIT 15
+#define INTEL_DVO_LVDS_CLONE_BIT 16
+#define INTEL_EDP_CLONE_BIT 17
+
 /* these are outputs from the chip - integrated only
  * external chips are via DVO or SDVO output */
 #define INTEL_OUTPUT_UNUSED 0
@@ -56,6 +75,25 @@
 #define INTEL_DVO_CHIP_TMDS 2
 #define INTEL_DVO_CHIP_TVOUT 4
 
+#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
+#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
+
+static inline void
+psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
+				int multiplier)
+{
+	mode->clock *= multiplier;
+	mode->private_flags |= multiplier;
+}
+
+static inline int
+psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
+{
+	return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
+	       >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
+}
+
+
 /*
  * Hold information useally put on the device driver privates here,
  * since it needs to be shared across multiple of devices drivers privates.
@@ -173,7 +211,7 @@ extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 			    struct psb_intel_mode_device *mode_dev);
 extern void psb_intel_crt_init(struct drm_device *dev);
-extern void psb_intel_sdvo_init(struct drm_device *dev, int output_device);
+extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 extern void psb_intel_dvo_init(struct drm_device *dev);
 extern void psb_intel_tv_init(struct drm_device *dev);
 extern void psb_intel_lvds_init(struct drm_device *dev,
@@ -190,6 +228,7 @@ extern void mid_dsi_init(struct drm_device *dev,
 extern void psb_intel_crtc_load_lut(struct drm_crtc *crtc);
 extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
+extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
 
 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
 						struct drm_connector *connector)

drivers/gpu/drm/gma500/psb_intel_reg.h

@@ -376,6 +376,8 @@
 #define SDVO_PIPE_B_SELECT		(1 << 30)
 #define SDVO_STALL_SELECT		(1 << 29)
 #define SDVO_INTERRUPT_ENABLE		(1 << 26)
+#define SDVO_COLOR_RANGE_16_235		(1 << 8)
+#define SDVO_AUDIO_ENABLE		(1 << 6)
 
 /**
  * 915G/GM SDVO pixel multiplier.