xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon/kms: add support for clock/data path routers

Browse Source 
This is a follow on to:
26b5bc9864
(drm/radeon/kms: add support for router objects)

That patch added support for systems that use a mux to control
the ddc line routing between the connectors.  This patch adds
support for systems that use a mux to control the encoder
clock and data path routing to the connectors.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=31339

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-11-08 16:08:29 +00:00
committed by Dave Airlie
parent dccb2a952b
commit fb939dfcf2
6 changed files with 85 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/radeon/radeon_encoders.c
View File

@@ -1520,6 +1520,7 @@ radeon_atom_dac_detect(struct drm_encoder *encoder, struct drm_connector *connec
static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
if (radeon_encoder->active_device &
(ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) {
@@ -1531,6 +1532,13 @@ static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
radeon_atom_output_lock(encoder, true);
radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
/* select the clock/data port if it uses a router */
if (connector) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
if (radeon_connector->router.cd_valid)
radeon_router_select_cd_port(radeon_connector);
}
/* this is needed for the pll/ss setup to work correctly in some cases */
atombios_set_encoder_crtc_source(encoder);
}