From: CK Hu <ck.hu@mediatek.com>
To: Yongqiang Niu <yongqiang.niu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
"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>
Subject: Re: [PATCH v6, 13/14] drm/mediatek: add fifo_size into rdma private data
Date: Thu, 2 Jan 2020 13:20:40 +0800 [thread overview]
Message-ID: <1577942440.24650.5.camel@mtksdaap41> (raw)
In-Reply-To: <1577937624-14313-14-git-send-email-yongqiang.niu@mediatek.com>
Hi, Yongqiang:
On Thu, 2020-01-02 at 12:00 +0800, Yongqiang Niu wrote:
> the fifo size of rdma in mt8183 is different.
> rdma0 fifo size is 5k
> rdma1 fifo size is 2k
>
> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 21 ++++++++++++++++++++-
> 1 file changed, 20 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> index 405afef..691480b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
> @@ -62,6 +62,7 @@ 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)
> @@ -130,10 +131,16 @@ 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;
>
> rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, 0xfff, width);
> rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_1, 0xfffff, height);
>
> + 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
> @@ -142,7 +149,7 @@ 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);
> writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON);
> }
> @@ -284,6 +291,18 @@ 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)) {
"mediatek,rdma_fifo_size" does not exists in binding document.
> + 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;
> + }
> +
> + priv->fifo_size *= SZ_1K;
Why not define fifo_size in 'bytes' ?
Regards,
CK
> + }
> +
> ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
> &mtk_disp_rdma_funcs);
> if (ret) {
next prev parent reply other threads:[~2020-01-02 5:20 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-02 4:00 [PATCH v6, 00/14] add drm support for MT8183 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 01/14] arm64: dts: add display nodes for mt8183 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 02/14] drm/mediatek: move dsi/dpi select input into mtk_ddp_sel_in Yongqiang Niu
2020-01-02 5:03 ` CK Hu
2020-01-02 5:39 ` Yongqiang Niu
2020-01-02 6:02 ` CK Hu
2020-01-02 6:21 ` Yongqiang Niu
2020-01-02 6:40 ` CK Hu
2020-01-02 7:00 ` Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 03/14] drm/mediatek: make sout select function format same with select input Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 04/14] drm/mediatek: add mmsys private data for ddp path config Yongqiang Niu
2020-01-02 5:33 ` CK Hu
2020-01-02 5:45 ` Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 05/14] drm/mediatek: move rdma sout from mtk_ddp_mout_en into mtk_ddp_sout_sel Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 06/14] drm/mediatek: add connection from OVL0 to OVL_2L0 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 07/14] drm/mediatek: add connection from RDMA0 to COLOR0 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 08/14] drm/mediatek: add connection from RDMA1 to DSI0 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 09/14] drm/mediatek: add connection from OVL_2L0 to RDMA0 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 10/14] drm/mediatek: add connection from OVL_2L1 to RDMA1 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 11/14] drm/mediatek: add connection from DITHER0 to DSI0 Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 12/14] drm/mediatek: add connection from RDMA0 " Yongqiang Niu
2020-01-02 4:00 ` [PATCH v6, 13/14] drm/mediatek: add fifo_size into rdma private data Yongqiang Niu
2020-01-02 5:20 ` CK Hu [this message]
2020-01-02 5:42 ` Yongqiang Niu
2020-01-02 7:31 ` CK Hu
2020-01-02 4:00 ` [PATCH v6, 14/14] drm/mediatek: add support for mediatek SOC MT8183 Yongqiang Niu
2020-01-02 5:46 ` CK Hu
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