[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <dfa95116-d430-48f4-8f36-0c0461d3b7ac@collabora.com>
Date: Tue, 17 Oct 2023 11:44:52 +0200
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
To: Hsiao Chien Sung <shawn.sung@...iatek.com>,
CK Hu <ck.hu@...iatek.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Rob Herring <robh+dt@...nel.org>
Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>, Fei Shao <fshao@...omium.org>,
Sean Paul <sean@...rly.run>,
Johnson Wang <johnson.wang@...iatek.corp-partner.google.com>,
"Nancy . Lin" <nancy.lin@...iatek.com>,
Moudy Ho <moudy.ho@...iatek.com>,
"Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
Nathan Lu <nathan.lu@...iatek.com>,
Yongqiang Niu <yongqiang.niu@...iatek.com>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org,
linux-mediatek@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v8 17/23] drm/mediatek: Support MT8188 Padding in display
driver
Il 16/10/23 12:40, Hsiao Chien Sung ha scritto:
> Padding is a new display module on MT8188, it provides ability
> to add pixels to width and height of a layer with specified colors.
>
> Due to hardware design, Mixer in VDOSYS1 requires width of a layer
> to be 2-pixel-align, or 4-pixel-align when ETHDR is enabled,
> we need Padding to deal with odd width.
>
> Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>
> ---
> drivers/gpu/drm/mediatek/Makefile | 3 +-
> drivers/gpu/drm/mediatek/mtk_disp_drv.h | 4 +
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 +
> drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 +-
> drivers/gpu/drm/mediatek/mtk_padding.c | 160 ++++++++++++++++++++++++
> 5 files changed, 168 insertions(+), 2 deletions(-)
> create mode 100644 drivers/gpu/drm/mediatek/mtk_padding.c
>
> diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
> index d4d193f60271..5e4436403b8d 100644
> --- a/drivers/gpu/drm/mediatek/Makefile
> +++ b/drivers/gpu/drm/mediatek/Makefile
> @@ -16,7 +16,8 @@ mediatek-drm-y := mtk_disp_aal.o \
> mtk_dsi.o \
> mtk_dpi.o \
> mtk_ethdr.o \
> - mtk_mdp_rdma.o
> + mtk_mdp_rdma.o \
> + mtk_padding.o
>
> obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index bf06ccb65652..e2b602037ac3 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -159,4 +159,8 @@ void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg,
> const u32 *mtk_mdp_rdma_get_formats(struct device *dev);
> size_t mtk_mdp_rdma_get_num_formats(struct device *dev);
>
> +int mtk_padding_clk_enable(struct device *dev);
> +void mtk_padding_clk_disable(struct device *dev);
> +void mtk_padding_start(struct device *dev);
> +void mtk_padding_stop(struct device *dev);
> #endif
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index cdce165c092e..62e6e9785443 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -1025,6 +1025,7 @@ static struct platform_driver * const mtk_drm_drivers[] = {
> &mtk_dsi_driver,
> &mtk_ethdr_driver,
> &mtk_mdp_rdma_driver,
> + &mtk_padding_driver,
> };
>
> static int __init mtk_drm_init(void)
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> index 8dca68ea1b94..d2efd715699f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> @@ -72,5 +72,5 @@ extern struct platform_driver mtk_dpi_driver;
> extern struct platform_driver mtk_dsi_driver;
> extern struct platform_driver mtk_ethdr_driver;
> extern struct platform_driver mtk_mdp_rdma_driver;
> -
> +extern struct platform_driver mtk_padding_driver;
> #endif /* MTK_DRM_DRV_H */
> diff --git a/drivers/gpu/drm/mediatek/mtk_padding.c b/drivers/gpu/drm/mediatek/mtk_padding.c
> new file mode 100644
> index 000000000000..fa2e7fc9c7bd
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_padding.c
> @@ -0,0 +1,160 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2023 MediaTek Inc.
> + */
> +
..snip..
> +
> +static const struct of_device_id mtk_padding_driver_dt_match[] = {
> + { .compatible = "mediatek,mt8188-padding" },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, mtk_padding_driver_dt_match);
> +
> +struct platform_driver mtk_padding_driver = {
> + .probe = mtk_padding_probe,
> + .remove = mtk_padding_remove,
> + .driver = {
> + .name = "mediatek-padding",
Please let's be consistent with the driver names, this should be
"mediatek-disp-padding".
After changing that,
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Powered by blists - more mailing lists