radeon: get primary dac adj info from bios tables

diff --git a/linux-core/radeon_combios.c b/linux-core/radeon_combios.c
index 5611646..02f7335 100644 (file)
--- a/linux-core/radeon_combios.c
+++ b/linux-core/radeon_combios.c
@@ -460,6 +460,36 @@ bool radeon_combios_get_clock_info(struct drm_device *dev)
        return false;
 }
 
+bool radeon_combios_get_primary_dac_info(struct radeon_encoder *encoder)
+{
+       struct drm_device *dev = encoder->base.dev;
+       struct drm_radeon_private *dev_priv = dev->dev_private;
+       uint16_t dac_info;
+       uint8_t rev, bg, dac;
+
+       /* check CRT table */
+       dac_info = combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);
+       if (dac_info) {
+               rev = radeon_bios8(dev_priv, dac_info) & 0x3;
+               if (rev < 2) {
+                       bg = radeon_bios8(dev_priv, dac_info + 0x2) & 0xf;
+                       dac = (radeon_bios8(dev_priv, dac_info + 0x2) >> 4) & 0xf;
+                       encoder->ps2_pdac_adj = (bg << 8) | (dac);
+
+                       return true;
+               } else {
+                       bg = radeon_bios8(dev_priv, dac_info + 0x2) & 0xf;
+                       dac = radeon_bios8(dev_priv, dac_info + 0x3) & 0xf;
+                       encoder->ps2_pdac_adj = (bg << 8) | (dac);
+
+                       return true;
+               }
+
+       }
+
+       return false;
+}
+
 bool radeon_combios_get_tv_dac_info(struct radeon_encoder *encoder)
 {
        struct drm_device *dev = encoder->base.dev;
@@ -908,7 +938,7 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
            dev_priv->chip_family == CHIP_RS480) {
                uint16_t lcd_info = combios_get_table_offset(dev, COMBIOS_LCD_INFO_TABLE);
                if (lcd_info) {
-                       uint16_t lcd_ddc_info = lcd_ddc_info = combios_get_table_offset(dev, COMBIOS_LCD_DDC_INFO_TABLE);
+                       uint16_t lcd_ddc_info = combios_get_table_offset(dev, COMBIOS_LCD_DDC_INFO_TABLE);
 
                        mode_info->bios_connector[4].valid = true;
                        mode_info->bios_connector[4].connector_type = CONNECTOR_LVDS;

diff --git a/linux-core/radeon_legacy_encoders.c b/linux-core/radeon_legacy_encoders.c
index 172f93d..48cdd18 100644 (file)
--- a/linux-core/radeon_legacy_encoders.c
+++ b/linux-core/radeon_legacy_encoders.c
@@ -420,6 +420,7 @@ static void radeon_legacy_primary_dac_mode_set(struct drm_encoder *encoder,
        struct drm_device *dev = encoder->dev;
        struct drm_radeon_private *dev_priv = dev->dev_private;
        struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
+       struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
        uint32_t disp_output_cntl, dac_cntl, dac2_cntl, dac_macro_cntl;
 
        DRM_DEBUG("\n");
@@ -458,7 +459,11 @@ static void radeon_legacy_primary_dac_mode_set(struct drm_encoder *encoder,
                       RADEON_DAC_RANGE_CNTL |
                       RADEON_DAC_BLANKING);
 
-       dac_macro_cntl = RADEON_READ(RADEON_DAC_MACRO_CNTL);
+       if (radeon_encoder->ps2_pdac_adj)
+               dac_macro_cntl = radeon_encoder->ps2_pdac_adj;
+       else
+               dac_macro_cntl = RADEON_READ(RADEON_DAC_MACRO_CNTL);
+       dac_macro_cntl |= RADEON_DAC_PDWN_R | RADEON_DAC_PDWN_G | RADEON_DAC_PDWN_B;
        RADEON_WRITE(RADEON_DAC_MACRO_CNTL, dac_macro_cntl);
 }
 
@@ -504,8 +509,8 @@ struct drm_encoder *radeon_encoder_legacy_primary_dac_add(struct drm_device *dev
 
        drm_encoder_helper_add(encoder, &radeon_legacy_primary_dac_helper_funcs);
 
-       /* TODO get the primary dac vals from bios tables */
-       //radeon_combios_get_lvds_info(radeon_encoder);
+       /* get the primary dac bg/adj vals from bios tables */
+       radeon_combios_get_primary_dac_info(radeon_encoder);
 
        return encoder;
 }

diff --git a/linux-core/radeon_mode.h b/linux-core/radeon_mode.h
index 3271375..ee80160 100644 (file)
--- a/linux-core/radeon_mode.h
+++ b/linux-core/radeon_mode.h
@@ -368,6 +368,9 @@ struct radeon_encoder {
        bool use_bios_dividers;
        uint32_t lvds_gen_cntl;
 
+       /* legacy primary dac */
+       uint32_t ps2_pdac_adj;
+
        /* legacy tv dac */
        uint32_t ps2_tvdac_adj;
        uint32_t ntsc_tvdac_adj;
@@ -439,6 +442,7 @@ extern bool radeon_combios_get_lvds_info(struct radeon_encoder *encoder);
 extern bool radeon_combios_get_tmds_info(struct radeon_encoder *encoder);
 extern bool radeon_combios_get_tv_info(struct radeon_encoder *encoder);
 extern bool radeon_combios_get_tv_dac_info(struct radeon_encoder *encoder);
+extern bool radeon_combios_get_primary_dac_info(struct radeon_encoder *encoder);
 extern void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
                                     u16 blue, int regno);
 struct drm_framebuffer *radeon_user_framebuffer_create(struct drm_device *dev,