[PATCH 5.15 144/230] drm/mediatek: Use mailbox rx_callback instead of cmdq_task_cb

Greg Kroah-Hartman
2022-07-11T09:55:17Z

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>

[ Upstream commit 1ee07a683b7e4e6ad9ad4f77fce4751741bc8ceb ]

rx_callback is a standard mailbox callback mechanism and could cover the
function of proprietary cmdq_task_cb, so use the standard one instead of
the proprietary one.

Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index a4e80e499674..369d3e68c0b6 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -4,6 +4,8 @@
*/

#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/mailbox_controller.h>
#include <linux/pm_runtime.h>
#include <linux/soc/mediatek/mtk-cmdq.h>
#include <linux/soc/mediatek/mtk-mmsys.h>
@@ -222,9 +224,11 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc,
}

#if IS_REACHABLE(CONFIG_MTK_CMDQ)
-static void ddp_cmdq_cb(struct cmdq_cb_data data)
+static void ddp_cmdq_cb(struct mbox_client *cl, void *mssg)
{
- cmdq_pkt_destroy(data.data);
+ struct cmdq_cb_data *data = mssg;
+
+ cmdq_pkt_destroy(data->pkt);
}
#endif

@@ -475,7 +479,12 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc,
cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false);
mtk_crtc_ddp_config(crtc, cmdq_handle);
cmdq_pkt_finalize(cmdq_handle);
- cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cmdq_handle);
+ dma_sync_single_for_device(mtk_crtc->cmdq_client->chan->mbox->dev,
+ cmdq_handle->pa_base,
+ cmdq_handle->cmd_buf_size,
+ DMA_TO_DEVICE);
+ mbox_send_message(mtk_crtc->cmdq_client->chan, cmdq_handle);
+ mbox_client_txdone(mtk_crtc->cmdq_client->chan, 0);
}
#endif
mtk_crtc->config_updating = false;
@@ -839,6 +848,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
}

if (mtk_crtc->cmdq_client) {
+ mtk_crtc->cmdq_client->client.rx_callback = ddp_cmdq_cb;
ret = of_property_read_u32_index(priv->mutex_node,
"mediatek,gce-events",
drm_crtc_index(&mtk_crtc->base),
--
2.35.1