From: Michael Riesch <michael.riesch@collabora.com>
To: Amin Gattout <amin.gattout@gmail.com>,
Mehdi Djait <mehdi.djait@linux.intel.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Heiko Stuebner <heiko@sntech.de>
Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] media: rockchip: rkcif: add support for rk3576 vicap mipi capture
Date: Fri, 18 Sep 2026 23:10:06 +0200 [thread overview]
Message-ID: <5fac8efb-f8e6-46d0-8063-49f3914efaf3@collabora.com> (raw)
In-Reply-To: <20260915-vicap-rk3576-v1-2-d3f5eb58a0b5@gmail.com>
Hi Amin,
Thanks for the patches. Thrilled to see this going forward!
On 9/15/26 14:27, Amin Gattout wrote:
> The RK3576 Video Capture (VICAP) unit features a Digital Video Port
> (DVP) and five MIPI CSI-2 capture interfaces. Compared to the RK3588
> variant, the MIPI register blocks are laid out differently (there is
> no block at offset 0x200), the ID_CTRL0 bit layout has changed, and
> the VC/DT filter has moved from ID_CTRL0 to ID_CTRL1. The capture
> size, which the other variants configure in ID_CTRL1, lives in the
> new ID_SET_SIZE register.
>
> Introduce a mipi_ctrl1 callback and a SET_SIZE register index so that
> each variant can declare what ID_CTRL1 holds and where the capture
> size is configured. The RK3568 and RK3588 variants keep their
> previous behavior.
I feel these should go into separate patches, i.e.,
- one patch introduces the SET_SIZE register
- one patch introduces the callback
- one patch introduces RK3576 support.
Apart from this, the changes LGTM!
Best regards,
Michael
>
> On the RK3576 the pixel clock of each MIPI port enters the VICAP
> through a dedicated CRU gate (CLK_VICAP_I0CLK to CLK_VICAP_I4CLK),
> so the variant claims these five clocks in addition to aclk, hclk
> and dclk.
>
> Signed-off-by: Amin Gattout <amin.gattout@gmail.com>
> ---
> .../platform/rockchip/rkcif/rkcif-capture-mipi.c | 155 ++++++++++++++++++++-
> .../platform/rockchip/rkcif/rkcif-capture-mipi.h | 1 +
> .../media/platform/rockchip/rkcif/rkcif-common.h | 4 +-
> drivers/media/platform/rockchip/rkcif/rkcif-dev.c | 21 +++
> drivers/media/platform/rockchip/rkcif/rkcif-regs.h | 1 +
> 5 files changed, 180 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c
> index bc9518f8db50..53e62d059764 100644
> --- a/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c
> +++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c
> @@ -30,6 +30,14 @@
> #define RK3568_MIPI_CTRL0_CROP_EN BIT(5)
> #define RK3568_MIPI_CTRL0_WRDDR(type) ((type) << 1)
>
> +#define RK3576_MIPI_CTRL0_HIGH_ALIGN BIT(11)
> +#define RK3576_MIPI_CTRL0_WRDDR(type) ((type) << 8)
> +#define RK3576_MIPI_CTRL0_PARSE(type) ((type) << 4)
> +#define RK3576_MIPI_CTRL0_DMA_EN BIT(3)
> +#define RK3576_MIPI_CTRL0_CROP_EN BIT(1)
> +
> +#define RK3576_MIPI_CTRL1_DT(dt) ((dt) << 2)
> +
> #define RK3588_MIPI_CTRL0_DMA_EN BIT(28)
> #define RK3588_MIPI_CTRL0_HIGH_ALIGN BIT(27)
> #define RK3588_MIPI_CTRL0_WRDDR(type) ((type) << 5)
> @@ -438,6 +446,7 @@ const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = 0x38,
> [RKCIF_MIPI_FRAME1_VLW_UV] = 0x40,
> [RKCIF_MIPI_CROP_START] = 0xbc,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> [RKCIF_ID1] = {
> [RKCIF_MIPI_CTRL0] = 0x08,
> @@ -451,6 +460,7 @@ const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = 0x58,
> [RKCIF_MIPI_FRAME1_VLW_UV] = 0x60,
> [RKCIF_MIPI_CROP_START] = 0xc0,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> [RKCIF_ID2] = {
> [RKCIF_MIPI_CTRL0] = 0x10,
> @@ -464,6 +474,7 @@ const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = 0x78,
> [RKCIF_MIPI_FRAME1_VLW_UV] = 0x80,
> [RKCIF_MIPI_CROP_START] = 0xc4,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> [RKCIF_ID3] = {
> [RKCIF_MIPI_CTRL0] = 0x18,
> @@ -477,6 +488,7 @@ const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = 0x98,
> [RKCIF_MIPI_FRAME1_VLW_UV] = 0xa0,
> [RKCIF_MIPI_CROP_START] = 0xc8,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> },
> .blocks = {
> @@ -486,6 +498,138 @@ const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data = {
> },
> };
>
> +static u32
> +rkcif_rk3576_mipi_ctrl0(struct rkcif_stream *stream,
> + const struct rkcif_output_fmt *active_out_fmt)
> +{
> + u32 ctrl0 = RKCIF_MIPI_CTRL0_CAP_EN | RK3576_MIPI_CTRL0_DMA_EN |
> + RK3576_MIPI_CTRL0_CROP_EN;
> +
> + switch (active_out_fmt->mipi.type) {
> + case RKCIF_MIPI_TYPE_RAW8:
> + break;
> + case RKCIF_MIPI_TYPE_RAW10:
> + ctrl0 |= RK3576_MIPI_CTRL0_PARSE(0x1);
> + if (!active_out_fmt->mipi.compact)
> + ctrl0 |= RK3576_MIPI_CTRL0_WRDDR(0x1);
> + break;
> + case RKCIF_MIPI_TYPE_RAW12:
> + ctrl0 |= RK3576_MIPI_CTRL0_PARSE(0x2);
> + if (!active_out_fmt->mipi.compact)
> + ctrl0 |= RK3576_MIPI_CTRL0_WRDDR(0x1);
> + break;
> + case RKCIF_MIPI_TYPE_RGB888:
> + ctrl0 |= RK3576_MIPI_CTRL0_PARSE(0x7);
> + break;
> + case RKCIF_MIPI_TYPE_YUV422SP:
> + ctrl0 |= RK3576_MIPI_CTRL0_WRDDR(0x4);
> + break;
> + case RKCIF_MIPI_TYPE_YUV420SP:
> + ctrl0 |= RK3576_MIPI_CTRL0_WRDDR(0x5);
> + break;
> + case RKCIF_MIPI_TYPE_YUV400:
> + ctrl0 |= RK3576_MIPI_CTRL0_WRDDR(0x3);
> + break;
> + default:
> + break;
> + }
> +
> + return ctrl0;
> +}
> +
> +static u32
> +rkcif_rk3576_mipi_ctrl1(struct rkcif_stream *stream,
> + const struct rkcif_output_fmt *active_out_fmt)
> +{
> + return RK3576_MIPI_CTRL1_DT(active_out_fmt->mipi.dt);
> +}
> +
> +const struct rkcif_mipi_match_data rkcif_rk3576_vicap_mipi_match_data = {
> + .mipi_num = 5,
> + .mipi_ctrl0 = rkcif_rk3576_mipi_ctrl0,
> + .mipi_ctrl1 = rkcif_rk3576_mipi_ctrl1,
> + .regs = {
> + [RKCIF_MIPI_CTRL] = 0x20,
> + [RKCIF_MIPI_INTEN] = 0x74,
> + [RKCIF_MIPI_INTSTAT] = 0x78,
> + },
> + .regs_id = {
> + [RKCIF_ID0] = {
> + [RKCIF_MIPI_CTRL0] = 0x00,
> + [RKCIF_MIPI_CTRL1] = 0x04,
> + [RKCIF_MIPI_FRAME0_ADDR_Y] = 0x24,
> + [RKCIF_MIPI_FRAME0_ADDR_UV] = 0x2c,
> + [RKCIF_MIPI_FRAME0_VLW_Y] = 0x34,
> + [RKCIF_MIPI_FRAME0_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_ADDR_Y] = 0x28,
> + [RKCIF_MIPI_FRAME1_ADDR_UV] = 0x30,
> + [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_CROP_START] = 0x90,
> + [RKCIF_MIPI_SET_SIZE] = 0xa0,
> + },
> + [RKCIF_ID1] = {
> + [RKCIF_MIPI_CTRL0] = 0x08,
> + [RKCIF_MIPI_CTRL1] = 0x0c,
> + [RKCIF_MIPI_FRAME0_ADDR_Y] = 0x38,
> + [RKCIF_MIPI_FRAME0_ADDR_UV] = 0x40,
> + [RKCIF_MIPI_FRAME0_VLW_Y] = 0x48,
> + [RKCIF_MIPI_FRAME0_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_ADDR_Y] = 0x3c,
> + [RKCIF_MIPI_FRAME1_ADDR_UV] = 0x44,
> + [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_CROP_START] = 0x94,
> + [RKCIF_MIPI_SET_SIZE] = 0xa4,
> + },
> + [RKCIF_ID2] = {
> + [RKCIF_MIPI_CTRL0] = 0x10,
> + [RKCIF_MIPI_CTRL1] = 0x14,
> + [RKCIF_MIPI_FRAME0_ADDR_Y] = 0x4c,
> + [RKCIF_MIPI_FRAME0_ADDR_UV] = 0x54,
> + [RKCIF_MIPI_FRAME0_VLW_Y] = 0x5c,
> + [RKCIF_MIPI_FRAME0_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_ADDR_Y] = 0x50,
> + [RKCIF_MIPI_FRAME1_ADDR_UV] = 0x58,
> + [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_CROP_START] = 0x98,
> + [RKCIF_MIPI_SET_SIZE] = 0xa8,
> + },
> + [RKCIF_ID3] = {
> + [RKCIF_MIPI_CTRL0] = 0x18,
> + [RKCIF_MIPI_CTRL1] = 0x1c,
> + [RKCIF_MIPI_FRAME0_ADDR_Y] = 0x60,
> + [RKCIF_MIPI_FRAME0_ADDR_UV] = 0x68,
> + [RKCIF_MIPI_FRAME0_VLW_Y] = 0x70,
> + [RKCIF_MIPI_FRAME0_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_ADDR_Y] = 0x64,
> + [RKCIF_MIPI_FRAME1_ADDR_UV] = 0x6c,
> + [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> + [RKCIF_MIPI_CROP_START] = 0x9c,
> + [RKCIF_MIPI_SET_SIZE] = 0xac,
> + },
> + },
> + .blocks = {
> + {
> + .offset = 0x100,
> + },
> + {
> + .offset = 0x300,
> + },
> + {
> + .offset = 0x400,
> + },
> + {
> + .offset = 0x500,
> + },
> + {
> + .offset = 0x600,
> + },
> + },
> +};
> +
> static u32
> rkcif_rk3588_mipi_ctrl0(struct rkcif_stream *stream,
> const struct rkcif_output_fmt *active_out_fmt)
> @@ -549,6 +693,7 @@ const struct rkcif_mipi_match_data rkcif_rk3588_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_CROP_START] = 0x8c,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> [RKCIF_ID1] = {
> [RKCIF_MIPI_CTRL0] = 0x08,
> @@ -562,6 +707,7 @@ const struct rkcif_mipi_match_data rkcif_rk3588_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_CROP_START] = 0x90,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> [RKCIF_ID2] = {
> [RKCIF_MIPI_CTRL0] = 0x10,
> @@ -575,6 +721,7 @@ const struct rkcif_mipi_match_data rkcif_rk3588_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_CROP_START] = 0x94,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> [RKCIF_ID3] = {
> [RKCIF_MIPI_CTRL0] = 0x18,
> @@ -588,6 +735,7 @@ const struct rkcif_mipi_match_data rkcif_rk3588_vicap_mipi_match_data = {
> [RKCIF_MIPI_FRAME1_VLW_Y] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_FRAME1_VLW_UV] = RKCIF_REGISTER_NOTSUPPORTED,
> [RKCIF_MIPI_CROP_START] = 0x98,
> + [RKCIF_MIPI_SET_SIZE] = RKCIF_REGISTER_NOTSUPPORTED,
> },
> },
> .blocks = {
> @@ -741,7 +889,10 @@ static int rkcif_mipi_start_streaming(struct rkcif_stream *stream)
> if (match_data->mipi_ctrl0)
> ctrl0 = match_data->mipi_ctrl0(stream, active_out_fmt);
>
> - ctrl1 = RKCIF_XY_COORD(width, height);
> + if (match_data->mipi_ctrl1)
> + ctrl1 = match_data->mipi_ctrl1(stream, active_out_fmt);
> + else
> + ctrl1 = RKCIF_XY_COORD(width, height);
>
> int_mask |= RKCIF_MIPI_INT_FRAME0_END(stream->id);
> int_mask |= RKCIF_MIPI_INT_FRAME1_END(stream->id);
> @@ -759,6 +910,8 @@ static int rkcif_mipi_start_streaming(struct rkcif_stream *stream)
> rkcif_mipi_stream_write(stream, RKCIF_MIPI_FRAME0_VLW_UV, vlw);
> rkcif_mipi_stream_write(stream, RKCIF_MIPI_FRAME1_VLW_UV, vlw);
> rkcif_mipi_stream_write(stream, RKCIF_MIPI_CROP_START, 0x0);
> + rkcif_mipi_stream_write(stream, RKCIF_MIPI_SET_SIZE,
> + RKCIF_XY_COORD(width, height));
> rkcif_mipi_stream_write(stream, RKCIF_MIPI_CTRL1, ctrl1);
> rkcif_mipi_stream_write(stream, RKCIF_MIPI_CTRL0, ctrl0);
>
> diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h
> index 7edaca44f653..4e17cbc04b76 100644
> --- a/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h
> +++ b/drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.h
> @@ -13,6 +13,7 @@
> #include "rkcif-common.h"
>
> extern const struct rkcif_mipi_match_data rkcif_rk3568_vicap_mipi_match_data;
> +extern const struct rkcif_mipi_match_data rkcif_rk3576_vicap_mipi_match_data;
> extern const struct rkcif_mipi_match_data rkcif_rk3588_vicap_mipi_match_data;
>
> int rkcif_mipi_register(struct rkcif_device *rkcif);
> diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-common.h b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
> index 4d9211ba9bda..08a213438d34 100644
> --- a/drivers/media/platform/rockchip/rkcif/rkcif-common.h
> +++ b/drivers/media/platform/rockchip/rkcif/rkcif-common.h
> @@ -27,7 +27,7 @@
> #include "rkcif-regs.h"
>
> #define RKCIF_DRIVER_NAME "rockchip-cif"
> -#define RKCIF_CLK_MAX 5
> +#define RKCIF_CLK_MAX 8
>
> enum rkcif_format_type {
> RKCIF_FMT_TYPE_INVALID,
> @@ -207,6 +207,8 @@ struct rkcif_mipi_match_data {
> unsigned int regs_id[RKCIF_ID_MAX][RKCIF_MIPI_ID_REGISTER_MAX];
> u32 (*mipi_ctrl0)(struct rkcif_stream *stream,
> const struct rkcif_output_fmt *active_out_fmt);
> + u32 (*mipi_ctrl1)(struct rkcif_stream *stream,
> + const struct rkcif_output_fmt *active_out_fmt);
> struct {
> unsigned int offset;
> } blocks[RKCIF_MIPI_MAX - RKCIF_MIPI_BASE];
> diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
> index be3a174b9aab..2a5758776b3e 100644
> --- a/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
> +++ b/drivers/media/platform/rockchip/rkcif/rkcif-dev.c
> @@ -53,6 +53,23 @@ static const struct rkcif_match_data rk3568_vicap_match_data = {
> .mipi = &rkcif_rk3568_vicap_mipi_match_data,
> };
>
> +static const char *const rk3576_vicap_clks[] = {
> + "aclk",
> + "hclk",
> + "dclk",
> + "iclk",
> + "iclk1",
> + "iclk2",
> + "iclk3",
> + "iclk4",
> +};
> +
> +static const struct rkcif_match_data rk3576_vicap_match_data = {
> + .clks = rk3576_vicap_clks,
> + .clks_num = ARRAY_SIZE(rk3576_vicap_clks),
> + .mipi = &rkcif_rk3576_vicap_mipi_match_data,
> +};
> +
> static const char *const rk3588_vicap_clks[] = {
> "aclk",
> "hclk",
> @@ -76,6 +93,10 @@ static const struct of_device_id rkcif_plat_of_match[] = {
> .compatible = "rockchip,rk3568-vicap",
> .data = &rk3568_vicap_match_data,
> },
> + {
> + .compatible = "rockchip,rk3576-vicap",
> + .data = &rk3576_vicap_match_data,
> + },
> {
> .compatible = "rockchip,rk3588-vicap",
> .data = &rk3588_vicap_match_data,
> diff --git a/drivers/media/platform/rockchip/rkcif/rkcif-regs.h b/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
> index 3cf7ee19de30..0460e963b154 100644
> --- a/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
> +++ b/drivers/media/platform/rockchip/rkcif/rkcif-regs.h
> @@ -147,6 +147,7 @@ enum rkcif_mipi_id_register_index {
> RKCIF_MIPI_FRAME1_VLW_Y,
> RKCIF_MIPI_FRAME1_VLW_UV,
> RKCIF_MIPI_CROP_START,
> + RKCIF_MIPI_SET_SIZE,
> RKCIF_MIPI_ID_REGISTER_MAX
> };
>
>
next prev parent reply other threads:[~2026-09-18 21:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-15 12:27 [PATCH 0/3] media: rockchip: add support for the RK3576 Video Capture unit Amin Gattout
2026-09-15 12:27 ` [PATCH 1/3] media: dt-bindings: add rockchip rk3576 vicap Amin Gattout
2026-09-15 16:31 ` Conor Dooley
2026-09-18 21:21 ` Michael Riesch
2026-09-15 12:27 ` [PATCH 2/3] media: rockchip: rkcif: add support for rk3576 vicap mipi capture Amin Gattout
2026-09-18 21:10 ` Michael Riesch [this message]
2026-09-15 12:27 ` [PATCH 3/3] arm64: dts: rockchip: add vicap node to rk3576 Amin Gattout
2026-09-18 21:20 ` Michael Riesch
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