[deliverable/linux.git] / drivers / media / platform / vsp1 / vsp1_uds.c

/*
 * vsp1_uds.c  --  R-Car VSP1 Up and Down Scaler
 *
 * Copyright (C) 2013-2014 Renesas Electronics Corporation
 *
 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/device.h>
#include <linux/gfp.h>

#include <media/v4l2-subdev.h>

#include "vsp1.h"
#include "vsp1_dl.h"
#include "vsp1_uds.h"

#define UDS_MIN_SIZE				4U
#define UDS_MAX_SIZE				8190U

#define UDS_MIN_FACTOR				0x0100
#define UDS_MAX_FACTOR				0xffff

/* -----------------------------------------------------------------------------
 * Device Access
 */

static inline void vsp1_uds_write(struct vsp1_uds *uds, struct vsp1_dl_list *dl,
				  u32 reg, u32 data)
{
	vsp1_dl_list_write(dl, reg + uds->entity.index * VI6_UDS_OFFSET, data);
}

/* -----------------------------------------------------------------------------
 * Scaling Computation
 */

void vsp1_uds_set_alpha(struct vsp1_uds *uds, struct vsp1_dl_list *dl,
			unsigned int alpha)
{
	vsp1_uds_write(uds, dl, VI6_UDS_ALPVAL,
		       alpha << VI6_UDS_ALPVAL_VAL0_SHIFT);
}

/*
 * uds_output_size - Return the output size for an input size and scaling ratio
 * @input: input size in pixels
 * @ratio: scaling ratio in U4.12 fixed-point format
 */
static unsigned int uds_output_size(unsigned int input, unsigned int ratio)
{
	if (ratio > 4096) {
		/* Down-scaling */
		unsigned int mp;

		mp = ratio / 4096;
		mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);

		return (input - 1) / mp * mp * 4096 / ratio + 1;
	} else {
		/* Up-scaling */
		return (input - 1) * 4096 / ratio + 1;
	}
}

/*
 * uds_output_limits - Return the min and max output sizes for an input size
 * @input: input size in pixels
 * @minimum: minimum output size (returned)
 * @maximum: maximum output size (returned)
 */
static void uds_output_limits(unsigned int input,
			      unsigned int *minimum, unsigned int *maximum)
{
	*minimum = max(uds_output_size(input, UDS_MAX_FACTOR), UDS_MIN_SIZE);
	*maximum = min(uds_output_size(input, UDS_MIN_FACTOR), UDS_MAX_SIZE);
}

/*
 * uds_passband_width - Return the passband filter width for a scaling ratio
 * @ratio: scaling ratio in U4.12 fixed-point format
 */
static unsigned int uds_passband_width(unsigned int ratio)
{
	if (ratio >= 4096) {
		/* Down-scaling */
		unsigned int mp;

		mp = ratio / 4096;
		mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);

		return 64 * 4096 * mp / ratio;
	} else {
		/* Up-scaling */
		return 64;
	}
}

static unsigned int uds_compute_ratio(unsigned int input, unsigned int output)
{
	/* TODO: This is an approximation that will need to be refined. */
	return (input - 1) * 4096 / (output - 1);
}

/* -----------------------------------------------------------------------------
 * V4L2 Subdevice Pad Operations
 */

static int uds_enum_mbus_code(struct v4l2_subdev *subdev,
			      struct v4l2_subdev_pad_config *cfg,
			      struct v4l2_subdev_mbus_code_enum *code)
{
	static const unsigned int codes[] = {
		MEDIA_BUS_FMT_ARGB8888_1X32,
		MEDIA_BUS_FMT_AYUV8_1X32,
	};

	return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
					  ARRAY_SIZE(codes));
}

static int uds_enum_frame_size(struct v4l2_subdev *subdev,
			       struct v4l2_subdev_pad_config *cfg,
			       struct v4l2_subdev_frame_size_enum *fse)
{
	struct vsp1_uds *uds = to_uds(subdev);
	struct v4l2_subdev_pad_config *config;
	struct v4l2_mbus_framefmt *format;

	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fse->which);
	if (!config)
		return -EINVAL;

	format = vsp1_entity_get_pad_format(&uds->entity, config,
					    UDS_PAD_SINK);

	if (fse->index || fse->code != format->code)
		return -EINVAL;

	if (fse->pad == UDS_PAD_SINK) {
		fse->min_width = UDS_MIN_SIZE;
		fse->max_width = UDS_MAX_SIZE;
		fse->min_height = UDS_MIN_SIZE;
		fse->max_height = UDS_MAX_SIZE;
	} else {
		uds_output_limits(format->width, &fse->min_width,
				  &fse->max_width);
		uds_output_limits(format->height, &fse->min_height,
				  &fse->max_height);
	}

	return 0;
}

static void uds_try_format(struct vsp1_uds *uds,
			   struct v4l2_subdev_pad_config *config,
			   unsigned int pad, struct v4l2_mbus_framefmt *fmt)
{
	struct v4l2_mbus_framefmt *format;
	unsigned int minimum;
	unsigned int maximum;

	switch (pad) {
	case UDS_PAD_SINK:
		/* Default to YUV if the requested format is not supported. */
		if (fmt->code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
		    fmt->code != MEDIA_BUS_FMT_AYUV8_1X32)
			fmt->code = MEDIA_BUS_FMT_AYUV8_1X32;

		fmt->width = clamp(fmt->width, UDS_MIN_SIZE, UDS_MAX_SIZE);
		fmt->height = clamp(fmt->height, UDS_MIN_SIZE, UDS_MAX_SIZE);
		break;

	case UDS_PAD_SOURCE:
		/* The UDS scales but can't perform format conversion. */
		format = vsp1_entity_get_pad_format(&uds->entity, config,
						    UDS_PAD_SINK);
		fmt->code = format->code;

		uds_output_limits(format->width, &minimum, &maximum);
		fmt->width = clamp(fmt->width, minimum, maximum);
		uds_output_limits(format->height, &minimum, &maximum);
		fmt->height = clamp(fmt->height, minimum, maximum);
		break;
	}

	fmt->field = V4L2_FIELD_NONE;
	fmt->colorspace = V4L2_COLORSPACE_SRGB;
}

static int uds_set_format(struct v4l2_subdev *subdev,
			  struct v4l2_subdev_pad_config *cfg,
			  struct v4l2_subdev_format *fmt)
{
	struct vsp1_uds *uds = to_uds(subdev);
	struct v4l2_subdev_pad_config *config;
	struct v4l2_mbus_framefmt *format;

	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fmt->which);
	if (!config)
		return -EINVAL;

	uds_try_format(uds, config, fmt->pad, &fmt->format);

	format = vsp1_entity_get_pad_format(&uds->entity, config, fmt->pad);
	*format = fmt->format;

	if (fmt->pad == UDS_PAD_SINK) {
		/* Propagate the format to the source pad. */
		format = vsp1_entity_get_pad_format(&uds->entity, config,
						    UDS_PAD_SOURCE);
		*format = fmt->format;

		uds_try_format(uds, config, UDS_PAD_SOURCE, format);
	}

	return 0;
}

/* -----------------------------------------------------------------------------
 * V4L2 Subdevice Operations
 */

static const struct v4l2_subdev_pad_ops uds_pad_ops = {
	.init_cfg = vsp1_entity_init_cfg,
	.enum_mbus_code = uds_enum_mbus_code,
	.enum_frame_size = uds_enum_frame_size,
	.get_fmt = vsp1_subdev_get_pad_format,
	.set_fmt = uds_set_format,
};

static const struct v4l2_subdev_ops uds_ops = {
	.pad    = &uds_pad_ops,
};

/* -----------------------------------------------------------------------------
 * VSP1 Entity Operations
 */

static void uds_configure(struct vsp1_entity *entity,
			  struct vsp1_pipeline *pipe,
			  struct vsp1_dl_list *dl)
{
	struct vsp1_uds *uds = to_uds(&entity->subdev);
	const struct v4l2_mbus_framefmt *output;
	const struct v4l2_mbus_framefmt *input;
	unsigned int hscale;
	unsigned int vscale;
	bool multitap;

	input = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
					   UDS_PAD_SINK);
	output = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
					    UDS_PAD_SOURCE);

	hscale = uds_compute_ratio(input->width, output->width);
	vscale = uds_compute_ratio(input->height, output->height);

	dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n", hscale, vscale);

	/* Multi-tap scaling can't be enabled along with alpha scaling when
	 * scaling down with a factor lower than or equal to 1/2 in either
	 * direction.
	 */
	if (uds->scale_alpha && (hscale >= 8192 || vscale >= 8192))
		multitap = false;
	else
		multitap = true;

	vsp1_uds_write(uds, dl, VI6_UDS_CTRL,
		       (uds->scale_alpha ? VI6_UDS_CTRL_AON : 0) |
		       (multitap ? VI6_UDS_CTRL_BC : 0));

	vsp1_uds_write(uds, dl, VI6_UDS_PASS_BWIDTH,
		       (uds_passband_width(hscale)
				<< VI6_UDS_PASS_BWIDTH_H_SHIFT) |
		       (uds_passband_width(vscale)
				<< VI6_UDS_PASS_BWIDTH_V_SHIFT));

	/* Set the scaling ratios and the output size. */
	vsp1_uds_write(uds, dl, VI6_UDS_SCALE,
		       (hscale << VI6_UDS_SCALE_HFRAC_SHIFT) |
		       (vscale << VI6_UDS_SCALE_VFRAC_SHIFT));
	vsp1_uds_write(uds, dl, VI6_UDS_CLIP_SIZE,
		       (output->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) |
		       (output->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT));
}

static const struct vsp1_entity_operations uds_entity_ops = {
	.configure = uds_configure,
};

/* -----------------------------------------------------------------------------
 * Initialization and Cleanup
 */

struct vsp1_uds *vsp1_uds_create(struct vsp1_device *vsp1, unsigned int index)
{
	struct vsp1_uds *uds;
	char name[6];
	int ret;

	uds = devm_kzalloc(vsp1->dev, sizeof(*uds), GFP_KERNEL);
	if (uds == NULL)
		return ERR_PTR(-ENOMEM);

	uds->entity.ops = &uds_entity_ops;
	uds->entity.type = VSP1_ENTITY_UDS;
	uds->entity.index = index;

	sprintf(name, "uds.%u", index);
	ret = vsp1_entity_init(vsp1, &uds->entity, name, 2, &uds_ops);
	if (ret < 0)
		return ERR_PTR(ret);

	return uds;
}
Commit	Line	Data
26e0ca22 LP	1	/*
	2	* vsp1_uds.c -- R-Car VSP1 Up and Down Scaler
	3	*
8a1edc55	4	* Copyright (C) 2013-2014 Renesas Electronics Corporation
26e0ca22 LP	5	*
	6	* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*/
	13
	14	#include <linux/device.h>
	15	#include <linux/gfp.h>
	16
	17	#include <media/v4l2-subdev.h>
	18
	19	#include "vsp1.h"
5e8dbbf3	20	#include "vsp1_dl.h"
26e0ca22 LP	21	#include "vsp1_uds.h"
	22
	23	#define UDS_MIN_SIZE 4U
	24	#define UDS_MAX_SIZE 8190U
	25
	26	#define UDS_MIN_FACTOR 0x0100
	27	#define UDS_MAX_FACTOR 0xffff
	28
	29	/* -----------------------------------------------------------------------------
	30	* Device Access
	31	*/
	32
5e8dbbf3 LP	33	static inline void vsp1_uds_write(struct vsp1_uds uds, struct vsp1_dl_list dl,
5e8dbbf3 LP	34	u32 reg, u32 data)
26e0ca22	35	{
5e8dbbf3	36	vsp1_dl_list_write(dl, reg + uds->entity.index * VI6_UDS_OFFSET, data);
26e0ca22 LP	37	}
	38
	39	/* -----------------------------------------------------------------------------
	40	* Scaling Computation
	41	*/
	42
5e8dbbf3 LP	43	void vsp1_uds_set_alpha(struct vsp1_uds uds, struct vsp1_dl_list dl,
5e8dbbf3 LP	44	unsigned int alpha)
bdc2df62	45	{
5e8dbbf3 LP	46	vsp1_uds_write(uds, dl, VI6_UDS_ALPVAL,
5e8dbbf3 LP	47	alpha << VI6_UDS_ALPVAL_VAL0_SHIFT);
bdc2df62 LP	48	}
bdc2df62 LP	49
26e0ca22 LP	50	/*
	51	* uds_output_size - Return the output size for an input size and scaling ratio
	52	* @input: input size in pixels
	53	* @ratio: scaling ratio in U4.12 fixed-point format
	54	*/
	55	static unsigned int uds_output_size(unsigned int input, unsigned int ratio)
	56	{
	57	if (ratio > 4096) {
	58	/* Down-scaling */
	59	unsigned int mp;
	60
	61	mp = ratio / 4096;
	62	mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);
	63
	64	return (input - 1) / mp * mp * 4096 / ratio + 1;
	65	} else {
	66	/* Up-scaling */
	67	return (input - 1) * 4096 / ratio + 1;
	68	}
	69	}
	70
	71	/*
	72	* uds_output_limits - Return the min and max output sizes for an input size
	73	* @input: input size in pixels
	74	* @minimum: minimum output size (returned)
	75	* @maximum: maximum output size (returned)
	76	*/
	77	static void uds_output_limits(unsigned int input,
	78	unsigned int minimum, unsigned int maximum)
	79	{
	80	*minimum = max(uds_output_size(input, UDS_MAX_FACTOR), UDS_MIN_SIZE);
	81	*maximum = min(uds_output_size(input, UDS_MIN_FACTOR), UDS_MAX_SIZE);
	82	}
	83
	84	/*
	85	* uds_passband_width - Return the passband filter width for a scaling ratio
	86	* @ratio: scaling ratio in U4.12 fixed-point format
	87	*/
	88	static unsigned int uds_passband_width(unsigned int ratio)
	89	{
	90	if (ratio >= 4096) {
	91	/* Down-scaling */
	92	unsigned int mp;
	93
	94	mp = ratio / 4096;
	95	mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);
	96
	97	return 64 * 4096 * mp / ratio;
	98	} else {
	99	/* Up-scaling */
	100	return 64;
	101	}
	102	}
	103
	104	static unsigned int uds_compute_ratio(unsigned int input, unsigned int output)
	105	{
	106	/* TODO: This is an approximation that will need to be refined. */
	107	return (input - 1) * 4096 / (output - 1);
	108	}
	109
26e0ca22 LP	110	/* -----------------------------------------------------------------------------
	111	* V4L2 Subdevice Pad Operations
	112	*/
	113
	114	static int uds_enum_mbus_code(struct v4l2_subdev *subdev,
f7234138	115	struct v4l2_subdev_pad_config *cfg,
26e0ca22 LP	116	struct v4l2_subdev_mbus_code_enum *code)
	117	{
	118	static const unsigned int codes[] = {
27ffaeb0 BB	119	MEDIA_BUS_FMT_ARGB8888_1X32,
27ffaeb0 BB	120	MEDIA_BUS_FMT_AYUV8_1X32,
26e0ca22	121	};
26e0ca22	122
6ad9ba9c LP	123	return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
6ad9ba9c LP	124	ARRAY_SIZE(codes));
26e0ca22 LP	125	}
	126
	127	static int uds_enum_frame_size(struct v4l2_subdev *subdev,
f7234138	128	struct v4l2_subdev_pad_config *cfg,
26e0ca22 LP	129	struct v4l2_subdev_frame_size_enum *fse)
26e0ca22 LP	130	{
5778e749	131	struct vsp1_uds *uds = to_uds(subdev);
e790c3cb	132	struct v4l2_subdev_pad_config *config;
26e0ca22 LP	133	struct v4l2_mbus_framefmt *format;
26e0ca22 LP	134
e790c3cb LP	135	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fse->which);
	136	if (!config)
	137	return -EINVAL;
	138
	139	format = vsp1_entity_get_pad_format(&uds->entity, config,
	140	UDS_PAD_SINK);
26e0ca22 LP	141
	142	if (fse->index \|\| fse->code != format->code)
	143	return -EINVAL;
	144
	145	if (fse->pad == UDS_PAD_SINK) {
	146	fse->min_width = UDS_MIN_SIZE;
	147	fse->max_width = UDS_MAX_SIZE;
	148	fse->min_height = UDS_MIN_SIZE;
	149	fse->max_height = UDS_MAX_SIZE;
	150	} else {
	151	uds_output_limits(format->width, &fse->min_width,
	152	&fse->max_width);
	153	uds_output_limits(format->height, &fse->min_height,
	154	&fse->max_height);
	155	}
	156
	157	return 0;
	158	}
	159
1bd0a1bd	160	static void uds_try_format(struct vsp1_uds *uds,
e790c3cb LP	161	struct v4l2_subdev_pad_config *config,
e790c3cb LP	162	unsigned int pad, struct v4l2_mbus_framefmt *fmt)
26e0ca22 LP	163	{
	164	struct v4l2_mbus_framefmt *format;
	165	unsigned int minimum;
	166	unsigned int maximum;
	167
	168	switch (pad) {
	169	case UDS_PAD_SINK:
	170	/* Default to YUV if the requested format is not supported. */
27ffaeb0 BB	171	if (fmt->code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
	172	fmt->code != MEDIA_BUS_FMT_AYUV8_1X32)
	173	fmt->code = MEDIA_BUS_FMT_AYUV8_1X32;
26e0ca22 LP	174
	175	fmt->width = clamp(fmt->width, UDS_MIN_SIZE, UDS_MAX_SIZE);
	176	fmt->height = clamp(fmt->height, UDS_MIN_SIZE, UDS_MAX_SIZE);
	177	break;
	178
	179	case UDS_PAD_SOURCE:
	180	/* The UDS scales but can't perform format conversion. */
e790c3cb LP	181	format = vsp1_entity_get_pad_format(&uds->entity, config,
e790c3cb LP	182	UDS_PAD_SINK);
26e0ca22 LP	183	fmt->code = format->code;
	184
	185	uds_output_limits(format->width, &minimum, &maximum);
	186	fmt->width = clamp(fmt->width, minimum, maximum);
	187	uds_output_limits(format->height, &minimum, &maximum);
	188	fmt->height = clamp(fmt->height, minimum, maximum);
	189	break;
	190	}
	191
	192	fmt->field = V4L2_FIELD_NONE;
	193	fmt->colorspace = V4L2_COLORSPACE_SRGB;
	194	}
	195
1bd0a1bd LP	196	static int uds_set_format(struct v4l2_subdev *subdev,
1bd0a1bd LP	197	struct v4l2_subdev_pad_config *cfg,
26e0ca22 LP	198	struct v4l2_subdev_format *fmt)
	199	{
	200	struct vsp1_uds *uds = to_uds(subdev);
e790c3cb	201	struct v4l2_subdev_pad_config *config;
26e0ca22 LP	202	struct v4l2_mbus_framefmt *format;
26e0ca22 LP	203
e790c3cb LP	204	config = vsp1_entity_get_pad_config(&uds->entity, cfg, fmt->which);
	205	if (!config)
	206	return -EINVAL;
	207
	208	uds_try_format(uds, config, fmt->pad, &fmt->format);
26e0ca22	209
e790c3cb	210	format = vsp1_entity_get_pad_format(&uds->entity, config, fmt->pad);
26e0ca22 LP	211	*format = fmt->format;
	212
	213	if (fmt->pad == UDS_PAD_SINK) {
	214	/* Propagate the format to the source pad. */
e790c3cb LP	215	format = vsp1_entity_get_pad_format(&uds->entity, config,
e790c3cb LP	216	UDS_PAD_SOURCE);
26e0ca22 LP	217	*format = fmt->format;
26e0ca22 LP	218
e790c3cb	219	uds_try_format(uds, config, UDS_PAD_SOURCE, format);
26e0ca22 LP	220	}
26e0ca22 LP	221
26e0ca22 LP	222	return 0;
	223	}
	224
	225	/* -----------------------------------------------------------------------------
	226	* V4L2 Subdevice Operations
	227	*/
	228
eb9163d3	229	static const struct v4l2_subdev_pad_ops uds_pad_ops = {
0efdf0f5	230	.init_cfg = vsp1_entity_init_cfg,
26e0ca22 LP	231	.enum_mbus_code = uds_enum_mbus_code,
26e0ca22 LP	232	.enum_frame_size = uds_enum_frame_size,
3f557220	233	.get_fmt = vsp1_subdev_get_pad_format,
26e0ca22 LP	234	.set_fmt = uds_set_format,
	235	};
	236
eb9163d3	237	static const struct v4l2_subdev_ops uds_ops = {
26e0ca22 LP	238	.pad = &uds_pad_ops,
	239	};
	240
7b905f05 LP	241	/* -----------------------------------------------------------------------------
	242	* VSP1 Entity Operations
	243	*/
	244
83dd019d LP	245	static void uds_configure(struct vsp1_entity *entity,
	246	struct vsp1_pipeline *pipe,
	247	struct vsp1_dl_list *dl)
7b905f05 LP	248	{
	249	struct vsp1_uds *uds = to_uds(&entity->subdev);
	250	const struct v4l2_mbus_framefmt *output;
	251	const struct v4l2_mbus_framefmt *input;
	252	unsigned int hscale;
	253	unsigned int vscale;
	254	bool multitap;
	255
	256	input = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
	257	UDS_PAD_SINK);
	258	output = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config,
	259	UDS_PAD_SOURCE);
	260
	261	hscale = uds_compute_ratio(input->width, output->width);
	262	vscale = uds_compute_ratio(input->height, output->height);
	263
	264	dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n", hscale, vscale);
	265
	266	/* Multi-tap scaling can't be enabled along with alpha scaling when
	267	* scaling down with a factor lower than or equal to 1/2 in either
	268	* direction.
	269	*/
	270	if (uds->scale_alpha && (hscale >= 8192 \|\| vscale >= 8192))
	271	multitap = false;
	272	else
	273	multitap = true;
	274
5e8dbbf3	275	vsp1_uds_write(uds, dl, VI6_UDS_CTRL,
7b905f05 LP	276	(uds->scale_alpha ? VI6_UDS_CTRL_AON : 0) \|
	277	(multitap ? VI6_UDS_CTRL_BC : 0));
	278
5e8dbbf3	279	vsp1_uds_write(uds, dl, VI6_UDS_PASS_BWIDTH,
7b905f05 LP	280	(uds_passband_width(hscale)
	281	<< VI6_UDS_PASS_BWIDTH_H_SHIFT) \|
	282	(uds_passband_width(vscale)
	283	<< VI6_UDS_PASS_BWIDTH_V_SHIFT));
	284
	285	/* Set the scaling ratios and the output size. */
5e8dbbf3	286	vsp1_uds_write(uds, dl, VI6_UDS_SCALE,
7b905f05 LP	287	(hscale << VI6_UDS_SCALE_HFRAC_SHIFT) \|
7b905f05 LP	288	(vscale << VI6_UDS_SCALE_VFRAC_SHIFT));
5e8dbbf3	289	vsp1_uds_write(uds, dl, VI6_UDS_CLIP_SIZE,
7b905f05 LP	290	(output->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) \|
	291	(output->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT));
	292	}
	293
	294	static const struct vsp1_entity_operations uds_entity_ops = {
	295	.configure = uds_configure,
	296	};
	297
26e0ca22 LP	298	/* -----------------------------------------------------------------------------
	299	* Initialization and Cleanup
	300	*/
	301
	302	struct vsp1_uds vsp1_uds_create(struct vsp1_device vsp1, unsigned int index)
	303	{
26e0ca22	304	struct vsp1_uds *uds;
823329df	305	char name[6];
26e0ca22 LP	306	int ret;
	307
	308	uds = devm_kzalloc(vsp1->dev, sizeof(*uds), GFP_KERNEL);
	309	if (uds == NULL)
	310	return ERR_PTR(-ENOMEM);
	311
7b905f05	312	uds->entity.ops = &uds_entity_ops;
26e0ca22 LP	313	uds->entity.type = VSP1_ENTITY_UDS;
26e0ca22 LP	314	uds->entity.index = index;
26e0ca22	315
823329df LP	316	sprintf(name, "uds.%u", index);
823329df LP	317	ret = vsp1_entity_init(vsp1, &uds->entity, name, 2, &uds_ops);
26e0ca22 LP	318	if (ret < 0)
	319	return ERR_PTR(ret);
	320
26e0ca22 LP	321	return uds;
26e0ca22 LP	322	}