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From:   Hsin-Yi Wang <hsinyi@chromium.org>
To:     linux-arm-kernel@lists.infradead.org
Cc:     CK Hu <ck.hu@mediatek.com>, Philipp Zabel <p.zabel@pengutronix.de>,
        Daniel Vetter <daniel@ffwll.ch>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Enric Balletbo i Serra <enric.balletbo@collabora.com>,
        Chun-Kuang Hu <chunkuang.hu@kernel.org>,
        dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2] drm: mediatek: fix device passed to cmdq
Date:   Thu,  9 Apr 2020 14:02:09 +0800
Message-Id: <20200409060209.202677-1-hsinyi@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

drm device is now probed from mmsys. We need to use mmsys device to get gce
nodes. Fix following errors:

[    0.740068] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
[    0.748721] mediatek-drm mediatek-drm.1.auto: error -2 can't parse gce-client-reg property (0)
...
[    2.659645] mediatek-drm mediatek-drm.1.auto: failed to request channel
[    2.666270] mediatek-drm mediatek-drm.1.auto: failed to request channel

Fixes: 1d367541aded ("soc / drm: mediatek: Fix mediatek-drm device probing")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---
The patch is based on
https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git
branch v5.6-next/soc

Change log:
v1->v2:
align with 60fa8c13ab1a ("drm/mediatek: Move gce event property to mutex device node")
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 3 ++-
 drivers/gpu/drm/mediatek/mtk_drm_drv.c  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 615a54e60fe2..7247c6f87f4a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -822,7 +822,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
 
 #if IS_REACHABLE(CONFIG_MTK_CMDQ)
 	mtk_crtc->cmdq_client =
-			cmdq_mbox_create(dev, drm_crtc_index(&mtk_crtc->base),
+			cmdq_mbox_create(mtk_crtc->mmsys_dev,
+					 drm_crtc_index(&mtk_crtc->base),
 					 2000);
 	if (IS_ERR(mtk_crtc->cmdq_client)) {
 		dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n",
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index e2bb0d19ef99..28418e5b83ee 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -517,7 +517,7 @@ static int mtk_drm_probe(struct platform_device *pdev)
 				goto err_node;
 			}
 
-			ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL);
+			ret = mtk_ddp_comp_init(dev->parent, node, comp, comp_id, NULL);
 			if (ret) {
 				of_node_put(node);
 				goto err_node;
-- 
2.26.0.292.g33ef6b2f38-goog