On rev <= 1.1 tables, the offset is absolute, on newer tables, it's relative.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=700326
Signed-off-by: Alex Deucher alexdeucher@gmail.com Cc: stable@kernel.org --- drivers/gpu/drm/radeon/radeon_atombios.c | 14 +++++++++++--- 1 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 7615aaa..fd6f4f3 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1585,9 +1585,17 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record; ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record; bool bad_record = false; - u8 *record = (u8 *)(mode_info->atom_context->bios + - data_offset + - le16_to_cpu(lvds_info->info.usModePatchTableOffset)); + u8 *record; + + if ((frev == 1) && (crev < 2)) + /* absolute */ + record = (u8 *)(mode_info->atom_context->bios + + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); + else + /* relative */ + record = (u8 *)(mode_info->atom_context->bios + + data_offset + + le16_to_cpu(lvds_info->info.usModePatchTableOffset)); while (*record != ATOM_RECORD_END_TYPE) { switch (*record) { case LCD_MODE_PATCH_RECORD_MODE_TYPE:
On Wed, May 11, 2011 at 2:02 PM, Alex Deucher alexdeucher@gmail.com wrote:
On rev <= 1.1 tables, the offset is absolute, on newer tables, it's relative.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=700326
Signed-off-by: Alex Deucher alexdeucher@gmail.com Cc: stable@kernel.org
Reviewed-by: Jerome Glisse jglisse@redhat.com
drivers/gpu/drm/radeon/radeon_atombios.c | 14 +++++++++++--- 1 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 7615aaa..fd6f4f3 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1585,9 +1585,17 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct ATOM_FAKE_EDID_PATCH_RECORD *fake_edid_record; ATOM_PANEL_RESOLUTION_PATCH_RECORD *panel_res_record; bool bad_record = false;
- u8 *record = (u8 *)(mode_info->atom_context->bios +
- data_offset +
- le16_to_cpu(lvds_info->info.usModePatchTableOffset));
- u8 *record;
- if ((frev == 1) && (crev < 2))
- /* absolute */
- record = (u8 *)(mode_info->atom_context->bios +
- le16_to_cpu(lvds_info->info.usModePatchTableOffset));
- else
- /* relative */
- record = (u8 *)(mode_info->atom_context->bios +
- data_offset +
- le16_to_cpu(lvds_info->info.usModePatchTableOffset));
while (*record != ATOM_RECORD_END_TYPE) { switch (*record) { case LCD_MODE_PATCH_RECORD_MODE_TYPE: -- 1.7.1.1
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