linux-kernel - [PATCH 3.16 123/136] drm/radeon: fix si_enable_smc

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Date:   Tue, 17 Dec 2019 00:47:37 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Yong Zhao" <yong.zhao@....com>,
        "Alex Deucher" <alexander.deucher@....com>
Subject: [PATCH 3.16 123/136] drm/radeon: fix si_enable_smc_cac() failed issue

3.16.80-rc1 review patch.  If anyone has any objections, please let me know.

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

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

commit 2c409ba81be25516afe05ae27a4a15da01740b01 upstream.

Need to set the dte flag on this asic.

Port the fix from amdgpu:
5cb818b861be114 ("drm/amd/amdgpu: fix si_enable_smc_cac() failed issue")

Reviewed-by: Yong Zhao <yong.zhao@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/gpu/drm/radeon/si_dpm.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -1951,6 +1951,7 @@ static void si_initialize_powertune_defa
 		case 0x682C:
 			si_pi->cac_weights = cac_weights_cape_verde_pro;
 			si_pi->dte_data = dte_data_sun_xt;
+			update_dte_from_pl2 = true;
 			break;
 		case 0x6825:
 		case 0x6827: