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Message-ID: <be6c72090cdbf79d86dab5cc75a05db81cd1585c.camel@ndufresne.ca>
Date: Wed, 24 Dec 2025 10:05:57 -0500
From: Nicolas Dufresne <nicolas@...fresne.ca>
To: Sven Püschel <s.pueschel@...gutronix.de>, Jacob Chen
	 <jacob-chen@...wrt.com>, Ezequiel Garcia <ezequiel@...guardiasur.com.ar>, 
 Mauro Carvalho Chehab
	 <mchehab@...nel.org>, Heiko Stuebner <heiko@...ech.de>, Rob Herring
	 <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
	 <conor+dt@...nel.org>
Cc: linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH v2 07/22] media: rockchip: rga: move hw specific parts
 to a dedicated struct

Le mercredi 03 décembre 2025 à 16:52 +0100, Sven Püschel a écrit :
> In preparation for the RGA3 unit, move RGA2 specific parts from rga.c
> to rga-hw.c and create a struct to reference the RGA2 specific functions
> and formats. This also allows to remove the rga-hw.h reference from the
> include list of the rga driver.
> 
> Also document the command finish interrupt with a dedicated define.
> 
> Signed-off-by: Sven Püschel <s.pueschel@...gutronix.de>

Reviewed-by: Nicolas Dufresne <nicolas.dufresne@...labora.com>

> ---
>  drivers/media/platform/rockchip/rga/rga-hw.c | 183 ++++++++++++++++++++-
>  drivers/media/platform/rockchip/rga/rga-hw.h |   5 +-
>  drivers/media/platform/rockchip/rga/rga.c    | 228 +++++----------------------
>  drivers/media/platform/rockchip/rga/rga.h    |  23 ++-
>  4 files changed, 245 insertions(+), 194 deletions(-)
> 
> diff --git a/drivers/media/platform/rockchip/rga/rga-hw.c b/drivers/media/platform/rockchip/rga/rga-hw.c
> index f1d5237472941..7419784efc693 100644
> --- a/drivers/media/platform/rockchip/rga/rga-hw.c
> +++ b/drivers/media/platform/rockchip/rga/rga-hw.c
> @@ -437,8 +437,8 @@ static void rga_cmd_set(struct rga_ctx *ctx,
>  		PAGE_SIZE, DMA_BIDIRECTIONAL);
>  }
>  
> -void rga_hw_start(struct rockchip_rga *rga,
> -		  struct rga_vb_buffer *src, struct rga_vb_buffer *dst)
> +static void rga_hw_start(struct rockchip_rga *rga,
> +			 struct rga_vb_buffer *src,  struct rga_vb_buffer *dst)
>  {
>  	struct rga_ctx *ctx = rga->curr;
>  
> @@ -452,3 +452,182 @@ void rga_hw_start(struct rockchip_rga *rga,
>  
>  	rga_write(rga, RGA_CMD_CTRL, 0x1);
>  }
> +
> +static bool rga_handle_irq(struct rockchip_rga *rga)
> +{
> +	int intr;
> +
> +	intr = rga_read(rga, RGA_INT) & 0xf;
> +
> +	rga_mod(rga, RGA_INT, intr << 4, 0xf << 4);
> +
> +	return intr & RGA_INT_COMMAND_FINISHED;
> +}
> +
> +static void rga_get_version(struct rockchip_rga *rga)
> +{
> +	rga->version.major = (rga_read(rga, RGA_VERSION_INFO) >> 24) & 0xFF;
> +	rga->version.minor = (rga_read(rga, RGA_VERSION_INFO) >> 20) & 0x0F;
> +}
> +
> +static struct rga_fmt formats[] = {
> +	{
> +		.fourcc = V4L2_PIX_FMT_ARGB32,
> +		.color_swap = RGA_COLOR_ALPHA_SWAP,
> +		.hw_format = RGA_COLOR_FMT_ABGR8888,
> +		.depth = 32,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_ABGR32,
> +		.color_swap = RGA_COLOR_RB_SWAP,
> +		.hw_format = RGA_COLOR_FMT_ABGR8888,
> +		.depth = 32,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_XBGR32,
> +		.color_swap = RGA_COLOR_RB_SWAP,
> +		.hw_format = RGA_COLOR_FMT_XBGR8888,
> +		.depth = 32,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_RGB24,
> +		.color_swap = RGA_COLOR_NONE_SWAP,
> +		.hw_format = RGA_COLOR_FMT_RGB888,
> +		.depth = 24,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_BGR24,
> +		.color_swap = RGA_COLOR_RB_SWAP,
> +		.hw_format = RGA_COLOR_FMT_RGB888,
> +		.depth = 24,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_ARGB444,
> +		.color_swap = RGA_COLOR_RB_SWAP,
> +		.hw_format = RGA_COLOR_FMT_ABGR4444,
> +		.depth = 16,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_ARGB555,
> +		.color_swap = RGA_COLOR_RB_SWAP,
> +		.hw_format = RGA_COLOR_FMT_ABGR1555,
> +		.depth = 16,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_RGB565,
> +		.color_swap = RGA_COLOR_RB_SWAP,
> +		.hw_format = RGA_COLOR_FMT_BGR565,
> +		.depth = 16,
> +		.uv_factor = 1,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV21,
> +		.color_swap = RGA_COLOR_UV_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV420SP,
> +		.depth = 12,
> +		.uv_factor = 4,
> +		.y_div = 2,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV61,
> +		.color_swap = RGA_COLOR_UV_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV422SP,
> +		.depth = 16,
> +		.uv_factor = 2,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV12,
> +		.color_swap = RGA_COLOR_NONE_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV420SP,
> +		.depth = 12,
> +		.uv_factor = 4,
> +		.y_div = 2,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV12M,
> +		.color_swap = RGA_COLOR_NONE_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV420SP,
> +		.depth = 12,
> +		.uv_factor = 4,
> +		.y_div = 2,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_NV16,
> +		.color_swap = RGA_COLOR_NONE_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV422SP,
> +		.depth = 16,
> +		.uv_factor = 2,
> +		.y_div = 1,
> +		.x_div = 1,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_YUV420,
> +		.color_swap = RGA_COLOR_NONE_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV420P,
> +		.depth = 12,
> +		.uv_factor = 4,
> +		.y_div = 2,
> +		.x_div = 2,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_YUV422P,
> +		.color_swap = RGA_COLOR_NONE_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV422P,
> +
> +		.depth = 16,
> +		.uv_factor = 2,
> +		.y_div = 1,
> +		.x_div = 2,
> +	},
> +	{
> +		.fourcc = V4L2_PIX_FMT_YVU420,
> +		.color_swap = RGA_COLOR_UV_SWAP,
> +		.hw_format = RGA_COLOR_FMT_YUV420P,
> +		.depth = 12,
> +		.uv_factor = 4,
> +		.y_div = 2,
> +		.x_div = 2,
> +	},
> +};
> +
> +const struct rga_hw rga2_hw = {
> +	.formats = formats,
> +	.num_formats = ARRAY_SIZE(formats),
> +	.cmdbuf_size = RGA_CMDBUF_SIZE,
> +	.min_width = MIN_WIDTH,
> +	.max_width = MAX_WIDTH,
> +	.min_height = MIN_HEIGHT,
> +	.max_height = MAX_HEIGHT,
> +
> +	.start = rga_hw_start,
> +	.handle_irq = rga_handle_irq,
> +	.get_version = rga_get_version,
> +};
> diff --git a/drivers/media/platform/rockchip/rga/rga-hw.h b/drivers/media/platform/rockchip/rga/rga-hw.h
> index cc6bd7f5b0300..f4752aa823051 100644
> --- a/drivers/media/platform/rockchip/rga/rga-hw.h
> +++ b/drivers/media/platform/rockchip/rga/rga-hw.h
> @@ -15,9 +15,6 @@
>  #define MIN_WIDTH 34
>  #define MIN_HEIGHT 34
>  
> -#define DEFAULT_WIDTH 100
> -#define DEFAULT_HEIGHT 100
> -
>  #define RGA_TIMEOUT 500
>  
>  /* Registers address */
> @@ -178,6 +175,8 @@
>  #define RGA_ALPHA_COLOR_NORMAL 0
>  #define RGA_ALPHA_COLOR_MULTIPLY_CAL 1
>  
> +#define RGA_INT_COMMAND_FINISHED 4
> +
>  /* Registers union */
>  union rga_mode_ctrl {
>  	unsigned int val;
> diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
> index f50fbbab0645e..d8b14c2d9f6a4 100644
> --- a/drivers/media/platform/rockchip/rga/rga.c
> +++ b/drivers/media/platform/rockchip/rga/rga.c
> @@ -25,7 +25,6 @@
>  #include <media/videobuf2-dma-sg.h>
>  #include <media/videobuf2-v4l2.h>
>  
> -#include "rga-hw.h"
>  #include "rga.h"
>  
>  static int debug;
> @@ -47,7 +46,7 @@ static void device_run(void *prv)
>  
>  	dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
>  
> -	rga_hw_start(rga, vb_to_rga(src), vb_to_rga(dst));
> +	rga->hw->start(rga, vb_to_rga(src), vb_to_rga(dst));
>  
>  	spin_unlock_irqrestore(&rga->ctrl_lock, flags);
>  }
> @@ -55,13 +54,8 @@ static void device_run(void *prv)
>  static irqreturn_t rga_isr(int irq, void *prv)
>  {
>  	struct rockchip_rga *rga = prv;
> -	int intr;
>  
> -	intr = rga_read(rga, RGA_INT) & 0xf;
> -
> -	rga_mod(rga, RGA_INT, intr << 4, 0xf << 4);
> -
> -	if (intr & 0x04) {
> +	if (rga->hw->handle_irq(rga)) {
>  		struct vb2_v4l2_buffer *src, *dst;
>  		struct rga_ctx *ctx = rga->curr;
>  
> @@ -184,174 +178,17 @@ static int rga_setup_ctrls(struct rga_ctx *ctx)
>  	return 0;
>  }
>  
> -static struct rga_fmt formats[] = {
> -	{
> -		.fourcc = V4L2_PIX_FMT_ARGB32,
> -		.color_swap = RGA_COLOR_ALPHA_SWAP,
> -		.hw_format = RGA_COLOR_FMT_ABGR8888,
> -		.depth = 32,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_ABGR32,
> -		.color_swap = RGA_COLOR_RB_SWAP,
> -		.hw_format = RGA_COLOR_FMT_ABGR8888,
> -		.depth = 32,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_XBGR32,
> -		.color_swap = RGA_COLOR_RB_SWAP,
> -		.hw_format = RGA_COLOR_FMT_XBGR8888,
> -		.depth = 32,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_RGB24,
> -		.color_swap = RGA_COLOR_NONE_SWAP,
> -		.hw_format = RGA_COLOR_FMT_RGB888,
> -		.depth = 24,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_BGR24,
> -		.color_swap = RGA_COLOR_RB_SWAP,
> -		.hw_format = RGA_COLOR_FMT_RGB888,
> -		.depth = 24,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_ARGB444,
> -		.color_swap = RGA_COLOR_RB_SWAP,
> -		.hw_format = RGA_COLOR_FMT_ABGR4444,
> -		.depth = 16,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_ARGB555,
> -		.color_swap = RGA_COLOR_RB_SWAP,
> -		.hw_format = RGA_COLOR_FMT_ABGR1555,
> -		.depth = 16,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_RGB565,
> -		.color_swap = RGA_COLOR_RB_SWAP,
> -		.hw_format = RGA_COLOR_FMT_BGR565,
> -		.depth = 16,
> -		.uv_factor = 1,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_NV21,
> -		.color_swap = RGA_COLOR_UV_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV420SP,
> -		.depth = 12,
> -		.uv_factor = 4,
> -		.y_div = 2,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_NV61,
> -		.color_swap = RGA_COLOR_UV_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV422SP,
> -		.depth = 16,
> -		.uv_factor = 2,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_NV12,
> -		.color_swap = RGA_COLOR_NONE_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV420SP,
> -		.depth = 12,
> -		.uv_factor = 4,
> -		.y_div = 2,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_NV12M,
> -		.color_swap = RGA_COLOR_NONE_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV420SP,
> -		.depth = 12,
> -		.uv_factor = 4,
> -		.y_div = 2,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_NV16,
> -		.color_swap = RGA_COLOR_NONE_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV422SP,
> -		.depth = 16,
> -		.uv_factor = 2,
> -		.y_div = 1,
> -		.x_div = 1,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_YUV420,
> -		.color_swap = RGA_COLOR_NONE_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV420P,
> -		.depth = 12,
> -		.uv_factor = 4,
> -		.y_div = 2,
> -		.x_div = 2,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_YUV422P,
> -		.color_swap = RGA_COLOR_NONE_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV422P,
> -		.depth = 16,
> -		.uv_factor = 2,
> -		.y_div = 1,
> -		.x_div = 2,
> -	},
> -	{
> -		.fourcc = V4L2_PIX_FMT_YVU420,
> -		.color_swap = RGA_COLOR_UV_SWAP,
> -		.hw_format = RGA_COLOR_FMT_YUV420P,
> -		.depth = 12,
> -		.uv_factor = 4,
> -		.y_div = 2,
> -		.x_div = 2,
> -	},
> -};
> -
> -#define NUM_FORMATS ARRAY_SIZE(formats)
> -
> -static struct rga_fmt *rga_fmt_find(u32 pixelformat)
> +static struct rga_fmt *rga_fmt_find(struct rockchip_rga *rga, u32 pixelformat)
>  {
>  	unsigned int i;
>  
> -	for (i = 0; i < NUM_FORMATS; i++) {
> -		if (formats[i].fourcc == pixelformat)
> -			return &formats[i];
> +	for (i = 0; i < rga->hw->num_formats; i++) {
> +		if (rga->hw->formats[i].fourcc == pixelformat)
> +			return &rga->hw->formats[i];
>  	}
>  	return NULL;
>  }
>  
> -static struct rga_frame def_frame = {
> -	.crop.left = 0,
> -	.crop.top = 0,
> -	.crop.width = DEFAULT_WIDTH,
> -	.crop.height = DEFAULT_HEIGHT,
> -	.fmt = &formats[0],
> -};
> -
>  struct rga_frame *rga_get_frame(struct rga_ctx *ctx, enum v4l2_buf_type type)
>  {
>  	if (V4L2_TYPE_IS_OUTPUT(type))
> @@ -366,6 +203,18 @@ static int rga_open(struct file *file)
>  	struct rockchip_rga *rga = video_drvdata(file);
>  	struct rga_ctx *ctx = NULL;
>  	int ret = 0;
> +	u32 def_width = clamp(DEFAULT_WIDTH, rga->hw->min_width, rga->hw->max_width);
> +	u32 def_height = clamp(DEFAULT_HEIGHT, rga->hw->min_height, rga->hw->max_height);
> +	struct rga_frame def_frame = {
> +		.crop.left = 0,
> +		.crop.top = 0,
> +		.crop.width = def_width,
> +		.crop.height = def_height,
> +		.fmt = &rga->hw->formats[0],
> +	};
> +
> +	def_frame.stride = (def_width * def_frame.fmt->depth) >> 3;
> +	def_frame.size = def_frame.stride * def_height;
>  
>  	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
>  	if (!ctx)
> @@ -376,9 +225,9 @@ static int rga_open(struct file *file)
>  	ctx->out = def_frame;
>  
>  	v4l2_fill_pixfmt_mp(&ctx->in.pix,
> -			    ctx->in.fmt->fourcc, DEFAULT_WIDTH, DEFAULT_HEIGHT);
> +			    ctx->in.fmt->fourcc, def_width, def_height);
>  	v4l2_fill_pixfmt_mp(&ctx->out.pix,
> -			    ctx->out.fmt->fourcc, DEFAULT_WIDTH, DEFAULT_HEIGHT);
> +			    ctx->out.fmt->fourcc, def_width, def_height);
>  
>  	if (mutex_lock_interruptible(&rga->mutex)) {
>  		kfree(ctx);
> @@ -445,12 +294,13 @@ vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
>  
>  static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f)
>  {
> +	struct rockchip_rga *rga = video_drvdata(file);
>  	struct rga_fmt *fmt;
>  
> -	if (f->index >= NUM_FORMATS)
> +	if (f->index >= rga->hw->num_formats)
>  		return -EINVAL;
>  
> -	fmt = &formats[f->index];
> +	fmt = &rga->hw->formats[f->index];
>  	f->pixelformat = fmt->fourcc;
>  
>  	return 0;
> @@ -475,16 +325,18 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
>  static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
>  {
>  	struct v4l2_pix_format_mplane *pix_fmt = &f->fmt.pix_mp;
> +	struct rockchip_rga *rga = video_drvdata(file);
> +	const struct rga_hw *hw = rga->hw;
>  	struct rga_fmt *fmt;
>  
> -	fmt = rga_fmt_find(pix_fmt->pixelformat);
> +	fmt = rga_fmt_find(rga, pix_fmt->pixelformat);
>  	if (!fmt)
> -		fmt = &formats[0];
> +		fmt = &hw->formats[0];
>  
>  	pix_fmt->width = clamp(pix_fmt->width,
> -			       (u32)MIN_WIDTH, (u32)MAX_WIDTH);
> +			       hw->min_width, hw->max_width);
>  	pix_fmt->height = clamp(pix_fmt->height,
> -				(u32)MIN_HEIGHT, (u32)MAX_HEIGHT);
> +				hw->min_height, hw->max_height);
>  
>  	v4l2_fill_pixfmt_mp(pix_fmt, fmt->fourcc, pix_fmt->width, pix_fmt->height);
>  	pix_fmt->field = V4L2_FIELD_NONE;
> @@ -519,7 +371,7 @@ static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
>  	frm->size = 0;
>  	for (i = 0; i < pix_fmt->num_planes; i++)
>  		frm->size += pix_fmt->plane_fmt[i].sizeimage;
> -	frm->fmt = rga_fmt_find(pix_fmt->pixelformat);
> +	frm->fmt = rga_fmt_find(rga, pix_fmt->pixelformat);
>  	frm->stride = pix_fmt->plane_fmt[0].bytesperline;
>  
>  	/* Reset crop settings */
> @@ -639,7 +491,7 @@ static int vidioc_s_selection(struct file *file, void *priv,
>  
>  	if (s->r.left + s->r.width > f->pix.width ||
>  	    s->r.top + s->r.height > f->pix.height ||
> -	    s->r.width < MIN_WIDTH || s->r.height < MIN_HEIGHT) {
> +	    s->r.width < rga->hw->min_width || s->r.height < rga->hw->min_height) {
>  		v4l2_dbg(debug, 1, &rga->v4l2_dev, "unsupported crop value.\n");
>  		return -EINVAL;
>  	}
> @@ -748,6 +600,10 @@ static int rga_probe(struct platform_device *pdev)
>  	if (!rga)
>  		return -ENOMEM;
>  
> +	rga->hw = of_device_get_match_data(&pdev->dev);
> +	if (!rga->hw)
> +		return dev_err_probe(&pdev->dev, -ENODEV, "failed to get match data\n");
> +
>  	rga->dev = &pdev->dev;
>  	spin_lock_init(&rga->ctrl_lock);
>  	mutex_init(&rga->mutex);
> @@ -811,8 +667,7 @@ static int rga_probe(struct platform_device *pdev)
>  	if (ret < 0)
>  		goto rel_m2m;
>  
> -	rga->version.major = (rga_read(rga, RGA_VERSION_INFO) >> 24) & 0xFF;
> -	rga->version.minor = (rga_read(rga, RGA_VERSION_INFO) >> 20) & 0x0F;
> +	rga->hw->get_version(rga);
>  
>  	v4l2_info(&rga->v4l2_dev, "HW Version: 0x%02x.%02x\n",
>  		  rga->version.major, rga->version.minor);
> @@ -820,7 +675,7 @@ static int rga_probe(struct platform_device *pdev)
>  	pm_runtime_put(rga->dev);
>  
>  	/* Create CMD buffer */
> -	rga->cmdbuf_virt = dma_alloc_attrs(rga->dev, RGA_CMDBUF_SIZE,
> +	rga->cmdbuf_virt = dma_alloc_attrs(rga->dev, rga->hw->cmdbuf_size,
>  					   &rga->cmdbuf_phy, GFP_KERNEL,
>  					   DMA_ATTR_WRITE_COMBINE);
>  	if (!rga->cmdbuf_virt) {
> @@ -828,9 +683,6 @@ static int rga_probe(struct platform_device *pdev)
>  		goto rel_m2m;
>  	}
>  
> -	def_frame.stride = (DEFAULT_WIDTH * def_frame.fmt->depth) >> 3;
> -	def_frame.size = def_frame.stride * DEFAULT_HEIGHT;
> -
>  	ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
>  	if (ret) {
>  		v4l2_err(&rga->v4l2_dev, "Failed to register video device\n");
> @@ -843,7 +695,7 @@ static int rga_probe(struct platform_device *pdev)
>  	return 0;
>  
>  free_dma:
> -	dma_free_attrs(rga->dev, RGA_CMDBUF_SIZE, rga->cmdbuf_virt,
> +	dma_free_attrs(rga->dev, rga->hw->cmdbuf_size, rga->cmdbuf_virt,
>  		       rga->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE);
>  rel_m2m:
>  	v4l2_m2m_release(rga->m2m_dev);
> @@ -861,7 +713,7 @@ static void rga_remove(struct platform_device *pdev)
>  {
>  	struct rockchip_rga *rga = platform_get_drvdata(pdev);
>  
> -	dma_free_attrs(rga->dev, RGA_CMDBUF_SIZE, rga->cmdbuf_virt,
> +	dma_free_attrs(rga->dev, rga->hw->cmdbuf_size, rga->cmdbuf_virt,
>  		       rga->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE);
>  
>  	v4l2_info(&rga->v4l2_dev, "Removing\n");
> @@ -897,9 +749,11 @@ static const struct dev_pm_ops rga_pm = {
>  static const struct of_device_id rockchip_rga_match[] = {
>  	{
>  		.compatible = "rockchip,rk3288-rga",
> +		.data = &rga2_hw,
>  	},
>  	{
>  		.compatible = "rockchip,rk3399-rga",
> +		.data = &rga2_hw,
>  	},
>  	{},
>  };
> diff --git a/drivers/media/platform/rockchip/rga/rga.h b/drivers/media/platform/rockchip/rga/rga.h
> index 7ec1fcc03ed32..98635ddd50d7c 100644
> --- a/drivers/media/platform/rockchip/rga/rga.h
> +++ b/drivers/media/platform/rockchip/rga/rga.h
> @@ -14,6 +14,9 @@
>  
>  #define RGA_NAME "rockchip-rga"
>  
> +#define DEFAULT_WIDTH 100
> +#define DEFAULT_HEIGHT 100
> +
>  struct rga_fmt {
>  	u32 fourcc;
>  	int depth;
> @@ -69,6 +72,8 @@ static inline struct rga_ctx *file_to_rga_ctx(struct file *filp)
>  	return container_of(file_to_v4l2_fh(filp), struct rga_ctx, fh);
>  }
>  
> +struct rga_hw;
> +
>  struct rockchip_rga {
>  	struct v4l2_device v4l2_dev;
>  	struct v4l2_m2m_dev *m2m_dev;
> @@ -88,6 +93,8 @@ struct rockchip_rga {
>  	struct rga_ctx *curr;
>  	dma_addr_t cmdbuf_phy;
>  	void *cmdbuf_virt;
> +
> +	const struct rga_hw *hw;
>  };
>  
>  struct rga_addr_offset {
> @@ -138,7 +145,19 @@ static inline void rga_mod(struct rockchip_rga *rga, u32 reg, u32 val, u32 mask)
>  	rga_write(rga, reg, temp);
>  };
>  
> -void rga_hw_start(struct rockchip_rga *rga,
> -		  struct rga_vb_buffer *src, struct rga_vb_buffer *dst);
> +struct rga_hw {
> +	struct rga_fmt *formats;
> +	u32 num_formats;
> +	size_t cmdbuf_size;
> +	u32 min_width, min_height;
> +	u32 max_width, max_height;
> +
> +	void (*start)(struct rockchip_rga *rga,
> +		      struct rga_vb_buffer *src, struct rga_vb_buffer *dst);
> +	bool (*handle_irq)(struct rockchip_rga *rga);
> +	void (*get_version)(struct rockchip_rga *rga);
> +};
> +
> +extern const struct rga_hw rga2_hw;
>  
>  #endif

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