drm/radeon/kms: parse the extended LCD info block

[deliverable/linux.git] / drivers / gpu / drm / radeon / radeon_combios.c

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 7b7ea269549ccef95c1e6c343083071774e7e9de..111a844c1ecb3075f5ab968fca93a960ed08a6a2 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -471,8 +471,9 @@ bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev)
        return true;
 }
 
+/* this is used for atom LCDs as well */
 struct edid *
-radeon_combios_get_hardcoded_edid(struct radeon_device *rdev)
+radeon_bios_get_hardcoded_edid(struct radeon_device *rdev)
 {
        if (rdev->mode_info.bios_hardcoded_edid)
                return rdev->mode_info.bios_hardcoded_edid;
@@ -571,6 +572,7 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde
        }
 
        if (clk_mask && data_mask) {
+               /* system specific masks */
                i2c.mask_clk_mask = clk_mask;
                i2c.mask_data_mask = data_mask;
                i2c.a_clk_mask = clk_mask;
@@ -579,7 +581,19 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde
                i2c.en_data_mask = data_mask;
                i2c.y_clk_mask = clk_mask;
                i2c.y_data_mask = data_mask;
+       } else if ((ddc_line == RADEON_GPIOPAD_MASK) ||
+                  (ddc_line == RADEON_MDGPIO_MASK)) {
+               /* default gpiopad masks */
+               i2c.mask_clk_mask = (0x20 << 8);
+               i2c.mask_data_mask = 0x80;
+               i2c.a_clk_mask = (0x20 << 8);
+               i2c.a_data_mask = 0x80;
+               i2c.en_clk_mask = (0x20 << 8);
+               i2c.en_data_mask = 0x80;
+               i2c.y_clk_mask = (0x20 << 8);
+               i2c.y_data_mask = 0x80;
        } else {
+               /* default masks for ddc pads */
                i2c.mask_clk_mask = RADEON_GPIO_EN_1;
                i2c.mask_data_mask = RADEON_GPIO_EN_0;
                i2c.a_clk_mask = RADEON_GPIO_A_1;