From: Yongqiang Niu <yongqiang.niu@mediatek.com>
To: CK Hu <ck.hu@mediatek.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Mark Rutland <mark.rutland@arm.com>,
<dri-devel@lists.freedesktop.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
Yongqiang Niu <yongqiang.niu@mediatek.com>
Subject: [RESEND v7, PATCH 5/7] drm/mediatek: add fifo_size into rdma private data
Date: Sat, 8 Aug 2020 10:53:49 +0800 [thread overview]
Message-ID: <1596855231-5782-6-git-send-email-yongqiang.niu@mediatek.com> (raw)
In-Reply-To: <1596855231-5782-1-git-send-email-yongqiang.niu@mediatek.com>
Get the fifo size from device tree
because each rdma in the same SoC may have different fifo size
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index e04319f..794acc5 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -63,6 +63,7 @@ struct mtk_disp_rdma {
struct mtk_ddp_comp ddp_comp;
struct drm_crtc *crtc;
const struct mtk_disp_rdma_data *data;
+ u32 fifo_size;
};
static inline struct mtk_disp_rdma *comp_to_rdma(struct mtk_ddp_comp *comp)
@@ -131,12 +132,18 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width,
unsigned int threshold;
unsigned int reg;
struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
+ u32 rdma_fifo_size;
mtk_ddp_write_mask(cmdq_pkt, width, comp,
DISP_REG_RDMA_SIZE_CON_0, 0xfff);
mtk_ddp_write_mask(cmdq_pkt, height, comp,
DISP_REG_RDMA_SIZE_CON_1, 0xfffff);
+ if (rdma->fifo_size)
+ rdma_fifo_size = rdma->fifo_size;
+ else
+ rdma_fifo_size = RDMA_FIFO_SIZE(rdma);
+
/*
* Enable FIFO underflow since DSI and DPI can't be blocked.
* Keep the FIFO pseudo size reset default of 8 KiB. Set the
@@ -145,7 +152,7 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width,
*/
threshold = width * height * vrefresh * 4 * 7 / 1000000;
reg = RDMA_FIFO_UNDERFLOW_EN |
- RDMA_FIFO_PSEUDO_SIZE(RDMA_FIFO_SIZE(rdma)) |
+ RDMA_FIFO_PSEUDO_SIZE(rdma_fifo_size) |
RDMA_OUTPUT_VALID_FIFO_THRESHOLD(threshold);
mtk_ddp_write(cmdq_pkt, reg, comp, DISP_REG_RDMA_FIFO_CON);
}
@@ -291,6 +298,16 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev)
return comp_id;
}
+ if (of_find_property(dev->of_node, "mediatek,rdma_fifo_size", &ret)) {
+ ret = of_property_read_u32(dev->of_node,
+ "mediatek,rdma_fifo_size",
+ &priv->fifo_size);
+ if (ret) {
+ dev_err(dev, "Failed to get rdma fifo size\n");
+ return ret;
+ }
+ }
+
ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
&mtk_disp_rdma_funcs);
if (ret) {
--
1.8.1.1.dirty
next prev parent reply other threads:[~2020-08-08 2:55 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-08 2:53 [RESEND v7, PATCH 0/7] add drm support for MT8183 Yongqiang Niu
2020-08-08 2:53 ` [RESEND v7, PATCH 1/7] dt-bindings: mediatek: add rdma_fifo_size description for mt8183 display Yongqiang Niu
2020-08-09 0:56 ` Chun-Kuang Hu
2020-08-09 1:08 ` Chun-Kuang Hu
2020-08-12 16:55 ` Rob Herring
2020-08-08 2:53 ` [RESEND v7, PATCH 2/7] drm/mediatek: move ddp component define into mtk_mmsys.h Yongqiang Niu
2020-08-09 0:52 ` Chun-Kuang Hu
2020-08-08 2:53 ` [RESEND v7, PATCH 3/7] mtk-mmsys: add mmsys private data Yongqiang Niu
2020-08-10 23:35 ` Chun-Kuang Hu
2020-08-08 2:53 ` [RESEND v7, PATCH 4/7] mtk-mmsys: add mt8183 mmsys support Yongqiang Niu
2020-11-17 7:33 ` Hsin-Yi Wang
2020-08-08 2:53 ` Yongqiang Niu [this message]
2020-08-08 2:53 ` [RESEND v7, PATCH 6/7] drm/mediatek: add support for mediatek SOC MT8183 Yongqiang Niu
2020-08-09 0:35 ` Chun-Kuang Hu
2020-08-08 2:53 ` [RESEND v7, PATCH 7/7] arm64: dts: add display nodes for mt8183 Yongqiang Niu
2020-08-09 0:36 ` [RESEND v7, PATCH 0/7] add drm support for MT8183 Chun-Kuang Hu
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