With the radeon driver loaded the HP Compaq dc5750 Small Form Factor machine fails to resume from suspend. Adding a quirk similar to other devices avoids the problem and the system resumes properly.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=103881 Signed-off-by: Jeffery Miller <jmiller at neverware.com> --- drivers/gpu/drm/radeon/radeon_combios.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index c097d3a82bda..a9b01bcf7d0a 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -3387,6 +3387,14 @@ void radeon_combios_asic_init(struct drm_device *dev) rdev->pdev->subsystem_device == 0x30ae) return; + /* quirk for rs4xx HP Compaq dc5750 Small Form Factor to make it resume + * - it hangs on resume inside the dynclk 1 table. + */ + if (rdev->family == CHIP_RS480 && + rdev->pdev->subsystem_vendor == 0x103c && + rdev->pdev->subsystem_device == 0x280a) + return; + /* DYN CLK 1 */ table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE); if (table) -- 1.9.1
