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authorTyson Whitehead <twhitehead@gmail.com>2010-11-08 16:08:30 +0000
committerDave Airlie <airlied@redhat.com>2010-11-09 13:43:43 +1000
commitbdd91b2b571c80dacfca88667d935f9907e62931 (patch)
treea5921ad85a60122b05d9a9a6391cc117500a3f10 /drivers/gpu/drm/radeon/radeon_atombios.c
parentfb939dfcf2a3a70357000617799925b6a11f9348 (diff)
drm/radeon/kms: fix bugs in ddc and cd path router code
This is a follow on to: 2b5b1d7da9583484b3a9e7e375a90ca0e8ca07c2 (drm/radeon/kms: add support for clock/data path routers) That patch completed mux support for ddc and cd line routing between connectors. This patch fixes an indexing typo that was resulting in the atom bios router objects not always being walked, ensures the validity entries for the reused router structure are reset for every connector object walked, and corrects the masking operations used to update the mux control bits. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=31339 Signed-off-by: Tyson Whitehead <twhitehead@gmail.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_atombios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index a1de975eec30..87ead090c7d5 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -526,9 +526,6 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
if (crev < 2)
return false;
- router.ddc_valid = false;
- router.cd_valid = false;
-
obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
(ctx->bios + data_offset +
@@ -625,6 +622,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
if (connector_type == DRM_MODE_CONNECTOR_Unknown)
continue;
+ router.ddc_valid = false;
+ router.cd_valid = false;
for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
uint8_t grph_obj_id, grph_obj_num, grph_obj_type;
@@ -648,10 +647,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
usDeviceTag));
} else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
- router.ddc_valid = false;
- router.cd_valid = false;
for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
- u16 router_obj_id = le16_to_cpu(router_obj->asObjects[j].usObjectID);
+ u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
(ctx->bios + data_offset +