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Date: Tue, 8 Nov 2022 18:46:51 +0100
From: Matthias Brugger <matthias.bgg@...il.com>
To: "Nancy.Lin" <nancy.lin@...iatek.com>,
Rob Herring <robh+dt@...nel.org>,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>, wim@...ux-watchdog.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>, linux@...ck-us.net,
nfraprado@...labora.com
Cc: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
"jason-jh . lin" <jason-jh.lin@...iatek.com>,
Yongqiang Niu <yongqiang.niu@...iatek.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org,
dri-devel@...ts.freedesktop.org, llvm@...ts.linux.dev,
singo.chang@...iatek.com,
Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v28 06/11] soc: mediatek: add mtk-mmsys config API for
mt8195 vdosys1
On 07/11/2022 08:22, Nancy.Lin wrote:
> Add four mmsys config APIs. The config APIs are used for config
> mmsys reg. Some mmsys regs need to be set according to the
> HW engine binding to the mmsys simultaneously.
>
> 1. mtk_mmsys_merge_async_config: config merge async width/height.
> async is used for cross-clock domain synchronization.
> 2. mtk_mmsys_hdr_confing: config hdr backend async width/height.
> 3. mtk_mmsys_mixer_in_config and mtk_mmsys_mixer_in_config:
> config mixer related settings.
>
> Signed-off-by: Nancy.Lin <nancy.lin@...iatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: CK Hu <ck.hu@...iatek.com>
> Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Tested-by: Bo-Chen Chen <rex-bc.chen@...iatek.com>
Not something we need to fix in this series, but it would make sense instead of
adding all the EXPORTS to pass the functions as callbacks in the
platform_device_register_data. But I realize you don't pass the VDOSYS number to
the DRM driver to distinguish between the different MMSYS devices that created
the platform device. I hadn't had a deep look on the DRM implementation but I
suppose it will be challenge...
Regards,
Matthias
> ---
> drivers/soc/mediatek/mt8195-mmsys.h | 6 +++++
> drivers/soc/mediatek/mtk-mmsys.c | 35 ++++++++++++++++++++++++++
> include/linux/soc/mediatek/mtk-mmsys.h | 9 +++++++
> 3 files changed, 50 insertions(+)
>
> diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
> index fd7b455bd675..454944a9409c 100644
> --- a/drivers/soc/mediatek/mt8195-mmsys.h
> +++ b/drivers/soc/mediatek/mt8195-mmsys.h
> @@ -75,6 +75,12 @@
> #define MT8195_SOUT_DSC_WRAP1_OUT_TO_SINA_VIRTUAL0 (2 << 16)
> #define MT8195_SOUT_DSC_WRAP1_OUT_TO_VPP_MERGE (3 << 16)
>
> +#define MT8195_VDO1_MERGE0_ASYNC_CFG_WD 0xe30
> +#define MT8195_VDO1_HDRBE_ASYNC_CFG_WD 0xe70
> +#define MT8195_VDO1_HDR_TOP_CFG 0xd00
> +#define MT8195_VDO1_MIXER_IN1_ALPHA 0xd30
> +#define MT8195_VDO1_MIXER_IN1_PAD 0xd40
> +
> #define MT8195_VDO1_VPP_MERGE0_P0_SEL_IN 0xf04
> #define MT8195_VPP_MERGE0_P0_SEL_IN_FROM_MDP_RDMA0 1
>
> diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
> index 73c8bd27e6ae..6040a3cff6f8 100644
> --- a/drivers/soc/mediatek/mtk-mmsys.c
> +++ b/drivers/soc/mediatek/mtk-mmsys.c
> @@ -137,6 +137,41 @@ void mtk_mmsys_ddp_disconnect(struct device *dev,
> }
> EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect);
>
> +void mtk_mmsys_merge_async_config(struct device *dev, int idx, int width, int height)
> +{
> + mtk_mmsys_update_bits(dev_get_drvdata(dev), MT8195_VDO1_MERGE0_ASYNC_CFG_WD + 0x10 * idx,
> + ~0, height << 16 | width);
> +}
> +EXPORT_SYMBOL_GPL(mtk_mmsys_merge_async_config);
> +
> +void mtk_mmsys_hdr_config(struct device *dev, int be_width, int be_height)
> +{
> + mtk_mmsys_update_bits(dev_get_drvdata(dev), MT8195_VDO1_HDRBE_ASYNC_CFG_WD, ~0,
> + be_height << 16 | be_width);
> +}
> +EXPORT_SYMBOL_GPL(mtk_mmsys_hdr_config);
> +
> +void mtk_mmsys_mixer_in_config(struct device *dev, int idx, bool alpha_sel, u16 alpha,
> + u8 mode, u32 biwidth)
> +{
> + struct mtk_mmsys *mmsys = dev_get_drvdata(dev);
> +
> + mtk_mmsys_update_bits(mmsys, MT8195_VDO1_MIXER_IN1_ALPHA + (idx - 1) * 4, ~0,
> + alpha << 16 | alpha);
> + mtk_mmsys_update_bits(mmsys, MT8195_VDO1_HDR_TOP_CFG, BIT(19 + idx),
> + alpha_sel << (19 + idx));
> + mtk_mmsys_update_bits(mmsys, MT8195_VDO1_MIXER_IN1_PAD + (idx - 1) * 4,
> + GENMASK(31, 16) | GENMASK(1, 0), biwidth << 16 | mode);
> +}
> +EXPORT_SYMBOL_GPL(mtk_mmsys_mixer_in_config);
> +
> +void mtk_mmsys_mixer_in_channel_swap(struct device *dev, int idx, bool channel_swap)
> +{
> + mtk_mmsys_update_bits(dev_get_drvdata(dev), MT8195_VDO1_MIXER_IN1_PAD + (idx - 1) * 4,
> + BIT(4), channel_swap << 4);
> +}
> +EXPORT_SYMBOL_GPL(mtk_mmsys_mixer_in_channel_swap);
> +
> void mtk_mmsys_ddp_dpi_fmt_config(struct device *dev, u32 val)
> {
> if (val)
> diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h
> index 127f1b888ace..a4708859c188 100644
> --- a/include/linux/soc/mediatek/mtk-mmsys.h
> +++ b/include/linux/soc/mediatek/mtk-mmsys.h
> @@ -75,4 +75,13 @@ void mtk_mmsys_ddp_disconnect(struct device *dev,
>
> void mtk_mmsys_ddp_dpi_fmt_config(struct device *dev, u32 val);
>
> +void mtk_mmsys_merge_async_config(struct device *dev, int idx, int width, int height);
> +
> +void mtk_mmsys_hdr_config(struct device *dev, int be_width, int be_height);
> +
> +void mtk_mmsys_mixer_in_config(struct device *dev, int idx, bool alpha_sel, u16 alpha,
> + u8 mode, u32 biwidth);
> +
> +void mtk_mmsys_mixer_in_channel_swap(struct device *dev, int idx, bool channel_swap);
> +
> #endif /* __MTK_MMSYS_H */
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