linux-kernel - [PATCH AUTOSEL 6.8 21/25] drm/amdgpu/vpe: power on vpe when hw

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Date: Sun,  7 Apr 2024 09:11:09 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Peyton Lee <peytolee@....com>,
	Lang Yu <lang.yu@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	christian.koenig@....com,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	Lang.Yu@....com,
	yifan1.zhang@....com,
	lijo.lazar@....com,
	srinivasan.shanmugam@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.8 21/25] drm/amdgpu/vpe: power on vpe when hw_init

From: Peyton Lee <peytolee@....com>

[ Upstream commit eed14eb48ee176fe0144c6a999d00c855d0b199b ]

To fix mode2 reset failure.
Should power on VPE when hw_init.

Signed-off-by: Peyton Lee <peytolee@....com>
Reviewed-by: Lang Yu <lang.yu@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.c
index b9a15d51eb5c3..ad44012cc01e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.c
@@ -390,6 +390,12 @@ static int vpe_hw_init(void *handle)
 	struct amdgpu_vpe *vpe = &adev->vpe;
 	int ret;
 
+	/* Power on VPE */
+	ret = amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VPE,
+						     AMD_PG_STATE_UNGATE);
+	if (ret)
+		return ret;
+
 	ret = vpe_load_microcode(vpe);
 	if (ret)
 		return ret;
-- 
2.43.0