From 995818588b6deedbed6b2b9d4c67e59b9afd6c60 Mon Sep 17 00:00:00 2001 From: Dennis YC Hsieh Date: Sun, 21 Jun 2020 22:18:32 +0800 Subject: [PATCH] soc: mediatek: cmdq: export finalize function 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 Reviewed-by: CK Hu Acked-by: Chun-Kuang Hu Link: https://lore.kernel.org/r/1592749115-24158-9-git-send-email-dennis-yc.hsieh@mediatek.com Signed-off-by: Matthias Brugger --- 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 fe46c4bac64d..ec6c9ffbf35e 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -492,6 +492,7 @@ 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 b9e5e4eea876..2eda03fc7662 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -300,7 +300,7 @@ 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; @@ -319,6 +319,7 @@ 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) { @@ -353,10 +354,6 @@ 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 83340211e1d3..c331255eacd1 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -166,6 +166,14 @@ 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