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drm/radeon/kms: fix LVDS setup on r4xx 

R4xx mobility chips use atombios, which does not store
the LVDS_GEN_CNTL parameter setup like combios.  Rather,
it's configured in LVDSEncoderControl.  As such,
LVDS_GEN_CNTL is set wrong when on resume.  Call
LVDSEncoderControl to set it properly.

Should fix fdo bug 25336

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2009-11-30 01:54:16 -05:00 committed by Dave Airlie
parent 23956dfa82
commit 32f48ffea9
3 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/radeon/radeon_encoders.c
View File

@ -424,7 +424,7 @@ union lvds_encoder_control {
LVDS_ENCODER_CONTROL_PS_ALLOCATION_V2 v2;
};
static void
void
atombios_digital_setup(struct drm_encoder *encoder, int action)
{
struct drm_device *dev = encoder->dev;

12
drivers/gpu/drm/radeon/radeon_legacy_encoders.c
View File

@ -136,7 +136,14 @@ static void radeon_legacy_lvds_mode_set(struct drm_encoder *encoder,
lvds_pll_cntl &= ~RADEON_LVDS_PLL_EN;
lvds_ss_gen_cntl = RREG32(RADEON_LVDS_SS_GEN_CNTL);
if ((!rdev->is_atom_bios)) {
if (rdev->is_atom_bios) {
/* LVDS_GEN_CNTL parameters are computed in LVDSEncoderControl
* need to call that on resume to set up the reg properly.
*/
radeon_encoder->pixel_clock = adjusted_mode->clock;
atombios_digital_setup(encoder, PANEL_ENCODER_ACTION_ENABLE);
lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
} else {
struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
if (lvds) {
DRM_DEBUG("bios LVDS_GEN_CNTL: 0x%x\n", lvds->lvds_gen_cntl);
@ -147,8 +154,7 @@ static void radeon_legacy_lvds_mode_set(struct drm_encoder *encoder,
(lvds->panel_blon_delay << RADEON_LVDS_PWRSEQ_DELAY2_SHIFT));
} else
lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
} else
lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
}
lvds_gen_cntl |= RADEON_LVDS_DISPLAY_DIS;
lvds_gen_cntl &= ~(RADEON_LVDS_ON |
RADEON_LVDS_BLON |

1
drivers/gpu/drm/radeon/radeon_mode.h
View File

@ -385,6 +385,7 @@ struct drm_encoder *radeon_encoder_legacy_tv_dac_add(struct drm_device *dev, int
struct drm_encoder *radeon_encoder_legacy_tmds_int_add(struct drm_device *dev, int bios_index);
struct drm_encoder *radeon_encoder_legacy_tmds_ext_add(struct drm_device *dev, int bios_index);
extern void atombios_external_tmds_setup(struct drm_encoder *encoder, int action);
extern void atombios_digital_setup(struct drm_encoder *encoder, int action);
extern int atombios_get_encoder_mode(struct drm_encoder *encoder);
extern void radeon_encoder_set_active_device(struct drm_encoder *encoder);