From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 21 Nov 2017 17:09:38 +0000 (-0500)
Subject: drm/radeon: Add dpm quirk for Jet PRO (v2)
X-Git-Tag: v4.19~1610^2~10^2~16
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=239b5f64e12b1f09f506c164dff0374924782979;p=platform%2Fkernel%2Flinux-rpi3.git

drm/radeon: Add dpm quirk for Jet PRO (v2)

Fixes stability issues.

v2: clamp sclk to 600 Mhz

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=103370
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---

diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index ee3e742..97a0a63 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -2984,6 +2984,11 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
 		    (rdev->pdev->device == 0x6667)) {
 			max_sclk = 75000;
 		}
+		if ((rdev->pdev->revision == 0xC3) ||
+		    (rdev->pdev->device == 0x6665)) {
+			max_sclk = 60000;
+			max_mclk = 80000;
+		}
 	} else if (rdev->family == CHIP_OLAND) {
 		if ((rdev->pdev->revision == 0xC7) ||
 		    (rdev->pdev->revision == 0x80) ||