[PATCH v5 10/13] soc: mediatek: cmdq: export finalize function

[Dennis YC Hsieh]

Export finalize function to client which helps append eoc and jump
command to pkt. Let client decide call finalize or not.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hs...@mediatek.com>
Reviewed-by: CK Hu <ck...@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 +
 drivers/soc/mediatek/mtk-cmdq-helper.c  | 7 ++-----
 include/linux/soc/mediatek/mtk-cmdq.h   | 8 ++++++++
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c 
b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 0dfcd1787e65..7daaabc26eb1 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -490,6 +490,7 @@ static void mtk_drm_crtc_hw_config(struct mtk_drm_crtc 
*mtk_crtc)
                cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event);
                cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event);
                mtk_crtc_ddp_config(crtc, cmdq_handle);
+               cmdq_pkt_finalize(cmdq_handle);
                cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cmdq_handle);
        }
 #endif
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c 
b/drivers/soc/mediatek/mtk-cmdq-helper.c
index a9ebbabb7439..59bc1164b411 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -372,7 +372,7 @@ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 
value)
 }
 EXPORT_SYMBOL(cmdq_pkt_assign);
 
-static int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
+int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
 {
        struct cmdq_instruction inst = { {0} };
        int err;
@@ -392,6 +392,7 @@ static int cmdq_pkt_finalize(struct cmdq_pkt *pkt)
 
        return err;
 }
+EXPORT_SYMBOL(cmdq_pkt_finalize);
 
 static void cmdq_pkt_flush_async_cb(struct cmdq_cb_data data)
 {
@@ -426,10 +427,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, 
cmdq_async_flush_cb cb,
        unsigned long flags = 0;
        struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
 
-       err = cmdq_pkt_finalize(pkt);
-       if (err < 0)
-               return err;
-
        pkt->cb.cb = cb;
        pkt->cb.data = data;
        pkt->async_cb.cb = cmdq_pkt_flush_async_cb;
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h 
b/include/linux/soc/mediatek/mtk-cmdq.h
index fec292aac83c..99e77155f967 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -213,6 +213,14 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys,
  */
 int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value);
 
+/**
+ * cmdq_pkt_finalize() - Append EOC and jump command to pkt.
+ * @pkt:       the CMDQ packet
+ *
+ * Return: 0 for success; else the error code is returned
+ */
+int cmdq_pkt_finalize(struct cmdq_pkt *pkt);
+
 /**
  * cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ
  *                          packet and call back at the end of done packet
-- 
2.18.0
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