Patch "Add radeon suspend/resume quirk for HP Compaq dc5750." has been added to the 4.1-stable tree

Patch "Add radeon suspend/resume quirk for HP Compaq dc5750." has been added to the 4.1-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    Add radeon suspend/resume quirk for HP Compaq dc5750.

to the 4.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     add-radeon-suspend-resume-quirk-for-hp-compaq-dc5750.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 09bfda10e6efd7b65bcc29237bee1765ed779657 Mon Sep 17 00:00:00 2001
From: Jeffery Miller <jmiller@neverware.com>
Date: Tue, 1 Sep 2015 11:23:02 -0400
Subject: Add radeon suspend/resume quirk for HP Compaq dc5750.

From: Jeffery Miller <jmiller@neverware.com>

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@neverware.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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)


Patches currently in stable-queue which might be from jmiller@neverware.com are

queue-4.1/add-radeon-suspend-resume-quirk-for-hp-compaq-dc5750.patch