linux-kernel - [PATCH 3.14 054/130] drm/radeon: make rv770_set_sw

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Message-Id: <20160301234501.683159081@linuxfoundation.org>
Date:	Tue, 01 Mar 2016 23:51:08 +0000
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	<linux-kernel@...r.kernel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<stable@...r.kernel.org>, Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 3.14 054/130] drm/radeon: make rv770_set_sw_state failures non-fatal

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

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

From: Alex Deucher <alexander.deucher@....com>

commit 4e7697ed79d0c0d5f869c87a6b3ce3d5cd1a07d6 upstream.

On some cards it takes a relatively long time for the change
to take place.  Make a timeout non-fatal.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=76130

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

---
 drivers/gpu/drm/radeon/rv770_dpm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -1415,7 +1415,7 @@ int rv770_resume_smc(struct radeon_devic
 int rv770_set_sw_state(struct radeon_device *rdev)
 {
 	if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_SwitchToSwState) != PPSMC_Result_OK)
-		return -EINVAL;
+		DRM_ERROR("rv770_set_sw_state failed\n");
 	return 0;
 }