[PATCH 3.14 18/84] Add radeon suspend/resume quirk for HP Compaq dc5750.

From: Greg Kroah-Hartman
Date: Tue Sep 29 2015 - 11:45:39 EST


3.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: Jeffery Miller <jmiller@xxxxxxxxxxxxx>

commit 09bfda10e6efd7b65bcc29237bee1765ed779657 upstream.

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.

Signed-off-by: Jeffery Miller <jmiller@xxxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/radeon/radeon_combios.c | 8 ++++++++
1 file changed, 8 insertions(+)

--- 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
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)


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/