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Commit d0c403e9 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms: fix support for original r100 



Original radeon didn't have a connector table in the
bios.  Check for the CRT table and if we have one,
add a VGA connector.

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 2d152c6b

drivers/gpu/drm/radeon/radeon_combios.c

+19 −2
Original line number Diff line number Diff line
@@ -1772,11 +1772,28 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev) 
						    ATOM_DEVICE_DFP1_SUPPORT,

						    DRM_MODE_CONNECTOR_DVII,

						    &ddc_i2c);

		} else {

			uint16_t crt_info =

				combios_get_table_offset(dev, COMBIOS_CRT_INFO_TABLE);

			DRM_DEBUG("Found CRT table, assuming VGA connector\n");

			if (crt_info) {

				radeon_add_legacy_encoder(dev,

							  radeon_get_encoder_id(dev,

										ATOM_DEVICE_CRT1_SUPPORT,

										1),

							  ATOM_DEVICE_CRT1_SUPPORT);

				ddc_i2c = combios_setup_i2c_bus(RADEON_GPIO_VGA_DDC);

				radeon_add_legacy_connector(dev,

							    0,

							    ATOM_DEVICE_CRT1_SUPPORT,

							    DRM_MODE_CONNECTOR_VGA,

							    &ddc_i2c);

			} else {

				DRM_DEBUG("No connector info found\n");

				return false;

			}

		}

	}



	if (rdev->flags & RADEON_IS_MOBILITY || rdev->flags & RADEON_IS_IGP) {

		uint16_t lcd_info =