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Message-Id: <efa019ee9d25f383acea1c15e3fa6b0fa314e1ad.1402303820.git.jslaby@suse.cz> Date: Mon, 9 Jun 2014 10:49:38 +0200 From: Jiri Slaby <jslaby@...e.cz> To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Alex Deucher <alexdeucher@...il.com>, Alex Deucher <alexander.deucher@....com>, Jiri Slaby <jslaby@...e.cz> Subject: [PATCH 3.12 043/146] drm/radeon: disable mclk dpm on R7 260X From: Alex Deucher <alexdeucher@...il.com> 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit 57700ad1f2f21d5d7ab7ee0e58d11b5954852434 upstream. Setting higher mclks seems to cause stability issues on some R7 260X boards. Disable it for now for stability until we find a proper fix. bug: https://bugs.freedesktop.org/show_bug.cgi?id=75992 Signed-off-by: Alex Deucher <alexander.deucher@....com> Signed-off-by: Jiri Slaby <jslaby@...e.cz> --- drivers/gpu/drm/radeon/ci_dpm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c index 51e947a97edf..79682ff51b63 100644 --- a/drivers/gpu/drm/radeon/ci_dpm.c +++ b/drivers/gpu/drm/radeon/ci_dpm.c @@ -5098,6 +5098,10 @@ int ci_dpm_init(struct radeon_device *rdev) pi->mclk_dpm_key_disabled = 0; pi->pcie_dpm_key_disabled = 0; + /* mclk dpm is unstable on some R7 260X cards */ + if (rdev->pdev->device == 0x6658) + pi->mclk_dpm_key_disabled = 1; + pi->caps_sclk_ds = true; pi->mclk_strobe_mode_threshold = 40000; -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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