[PATCH v5 6/8] drm/exynos: Add driver for Exynos Scaler module

Inki Dae inki.dae at samsung.com
Thu Nov 9 04:46:27 UTC 2017


Warnigs,

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#110: 
new file mode 100644

WARNING: please write a paragraph that describes the config symbol fully
#150: FILE: drivers/gpu/drm/exynos/Kconfig:112:
+config DRM_EXYNOS_SCALER

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#238: FILE: drivers/gpu/drm/exynos/exynos_drm_scaler.c:36:
+	unsigned	num_clk;

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
#240: FILE: drivers/gpu/drm/exynos/exynos_drm_scaler.c:38:
+	unsigned	num_formats;

WARNING: line over 80 characters
#698: FILE: drivers/gpu/drm/exynos/exynos_drm_scaler.c:496:
+		scaler->clock[i] = devm_clk_get(dev, scaler->scaler_data->clk_name[i]);

Thanks,
Inki Dae

2017년 11월 08일 18:41에 Marek Szyprowski 이(가) 쓴 글:
> From: Andrzej Pietrasiewicz <andrzej.p at samsung.com>
> 
> Exynos Scaler is a hardware module, which processes graphic data fetched
> from memory and transfers the resultant dato another memory buffer.
> Graphics data can be up/down-scaled, rotated, flipped and converted color
> space. Scaler hardware modules are a part of Exynos5420 and newer Exynos
> SoCs.
> 
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p at samsung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
> Acked-by: Rob Herring <robh at kernel.org>
> ---
>  .../devicetree/bindings/gpu/samsung-scaler.txt     |  27 +
>  drivers/gpu/drm/exynos/Kconfig                     |   6 +
>  drivers/gpu/drm/exynos/Makefile                    |   1 +
>  drivers/gpu/drm/exynos/exynos_drm_drv.c            |   3 +
>  drivers/gpu/drm/exynos/exynos_drm_drv.h            |   1 +
>  drivers/gpu/drm/exynos/exynos_drm_scaler.c         | 693 +++++++++++++++++++++
>  drivers/gpu/drm/exynos/regs-scaler.h               | 426 +++++++++++++
>  7 files changed, 1157 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpu/samsung-scaler.txt
>  create mode 100644 drivers/gpu/drm/exynos/exynos_drm_scaler.c
>  create mode 100644 drivers/gpu/drm/exynos/regs-scaler.h
> 
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-scaler.txt b/Documentation/devicetree/bindings/gpu/samsung-scaler.txt
> new file mode 100644
> index 000000000000..9c3d98105dfd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/samsung-scaler.txt
> @@ -0,0 +1,27 @@
> +* Samsung Exynos Image Scaler
> +
> +Required properties:
> +  - compatible : value should be one of the following:
> +	(a) "samsung,exynos5420-scaler" for Scaler IP in Exynos5420
> +	(b) "samsung,exynos5433-scaler" for Scaler IP in Exynos5433
> +
> +  - reg : Physical base address of the IP registers and length of memory
> +	  mapped region.
> +
> +  - interrupts : Interrupt specifier for scaler interrupt, according to format
> +		 specific to interrupt parent.
> +
> +  - clocks : Clock specifier for scaler clock, according to generic clock
> +	     bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt)
> +
> +  - clock-names : Names of clocks. For exynos scaler, it should be "mscl"
> +		  on 5420 and "pclk", "aclk" and "aclk_xiu" on 5433.
> +
> +Example:
> +	scaler at 12800000 {
> +		compatible = "samsung,exynos5420-scaler";
> +		reg = <0x12800000 0x1294>;
> +		interrupts = <0 220 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&clock CLK_MSCL0>;
> +		clock-names = "mscl";
> +	};
> diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
> index 73f06a3a8bec..bb6fad57e18a 100644
> --- a/drivers/gpu/drm/exynos/Kconfig
> +++ b/drivers/gpu/drm/exynos/Kconfig
> @@ -109,6 +109,12 @@ config DRM_EXYNOS_ROTATOR
>  	help
>  	  Choose this option if you want to use Exynos Rotator for DRM.
>  
> +config DRM_EXYNOS_SCALER
> +	bool "Scaler"
> +	select DRM_EXYNOS_IPP
> +	help
> +	  Choose this option if you want to use Exynos Scaler for DRM.
> +
>  config DRM_EXYNOS_GSC
>  	bool "GScaler"
>  	depends on VIDEO_SAMSUNG_EXYNOS_GSC=n
> diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
> index bdf4212dde7b..3b323f1e0475 100644
> --- a/drivers/gpu/drm/exynos/Makefile
> +++ b/drivers/gpu/drm/exynos/Makefile
> @@ -21,6 +21,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS_G2D)	+= exynos_drm_g2d.o
>  exynosdrm-$(CONFIG_DRM_EXYNOS_IPP)	+= exynos_drm_ipp.o
>  exynosdrm-$(CONFIG_DRM_EXYNOS_FIMC)	+= exynos_drm_fimc.o
>  exynosdrm-$(CONFIG_DRM_EXYNOS_ROTATOR)	+= exynos_drm_rotator.o
> +exynosdrm-$(CONFIG_DRM_EXYNOS_SCALER)	+= exynos_drm_scaler.o
>  exynosdrm-$(CONFIG_DRM_EXYNOS_GSC)	+= exynos_drm_gsc.o
>  exynosdrm-$(CONFIG_DRM_EXYNOS_MIC)     += exynos_drm_mic.o
>  
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index 3bd671a5620c..da01ef9314fe 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -263,6 +263,9 @@ static struct exynos_drm_driver_info exynos_drm_drivers[] = {
>  	}, {
>  		DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR),
>  		DRM_COMPONENT_DRIVER
> +	}, {
> +		DRV_PTR(scaler_driver, CONFIG_DRM_EXYNOS_SCALER),
> +		DRM_COMPONENT_DRIVER
>  	}, {
>  		DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC),
>  		DRM_COMPONENT_DRIVER
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> index 9dfe005805b9..68a68e37fdc7 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> @@ -300,6 +300,7 @@ extern struct platform_driver vidi_driver;
>  extern struct platform_driver g2d_driver;
>  extern struct platform_driver fimc_driver;
>  extern struct platform_driver rotator_driver;
> +extern struct platform_driver scaler_driver;
>  extern struct platform_driver gsc_driver;
>  extern struct platform_driver mic_driver;
>  #endif
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_scaler.c b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
> new file mode 100644
> index 000000000000..3183742e4b8d
> --- /dev/null
> +++ b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
> @@ -0,0 +1,693 @@
> +/*
> + * Copyright (C) 2017 Samsung Electronics Co.Ltd
> + * Author:
> + *	Andrzej Pietrasiewicz <andrzej.p at samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundationr
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/component.h>
> +#include <linux/err.h>
> +#include <linux/interrupt.h>
> +#include <linux/io.h>
> +#include <linux/platform_device.h>
> +#include <linux/clk.h>
> +#include <linux/of_device.h>
> +#include <linux/pm_runtime.h>
> +
> +#include <drm/drmP.h>
> +#include <drm/exynos_drm.h>
> +#include "regs-scaler.h"
> +#include "exynos_drm_fb.h"
> +#include "exynos_drm_drv.h"
> +#include "exynos_drm_iommu.h"
> +#include "exynos_drm_ipp.h"
> +
> +#define scaler_read(offset)		readl(scaler->regs + (offset))
> +#define scaler_write(cfg, offset)	writel(cfg, scaler->regs + (offset))
> +#define SCALER_MAX_CLK			4
> +#define SCALER_AUTOSUSPEND_DELAY	2000
> +
> +struct scaler_data {
> +	const char	*clk_name[SCALER_MAX_CLK];
> +	unsigned	num_clk;
> +	const struct exynos_drm_ipp_formats *formats;
> +	unsigned	num_formats;
> +};
> +
> +struct scaler_context {
> +	struct exynos_drm_ipp		ipp;
> +	struct drm_device		*drm_dev;
> +	struct device			*dev;
> +	void __iomem			*regs;
> +	struct clk			*clock[SCALER_MAX_CLK];
> +	struct exynos_drm_ipp_task	*task;
> +	const struct scaler_data	*scaler_data;
> +};
> +
> +static u32 scaler_get_format(u32 drm_fmt)
> +{
> +	switch (drm_fmt) {
> +	case DRM_FORMAT_NV21:
> +		return SCALER_YUV420_2P_UV;
> +	case DRM_FORMAT_NV12:
> +		return SCALER_YUV420_2P_VU;
> +	case DRM_FORMAT_YUV420:
> +		return SCALER_YUV420_3P;
> +	case DRM_FORMAT_YUYV:
> +		return SCALER_YUV422_1P_YUYV;
> +	case DRM_FORMAT_UYVY:
> +		return SCALER_YUV422_1P_UYVY;
> +	case DRM_FORMAT_YVYU:
> +		return SCALER_YUV422_1P_YVYU;
> +	case DRM_FORMAT_NV61:
> +		return SCALER_YUV422_2P_UV;
> +	case DRM_FORMAT_NV16:
> +		return SCALER_YUV422_2P_VU;
> +	case DRM_FORMAT_YUV422:
> +		return SCALER_YUV422_3P;
> +	case DRM_FORMAT_NV42:
> +		return SCALER_YUV444_2P_UV;
> +	case DRM_FORMAT_NV24:
> +		return SCALER_YUV444_2P_VU;
> +	case DRM_FORMAT_YUV444:
> +		return SCALER_YUV444_3P;
> +	case DRM_FORMAT_RGB565:
> +		return SCALER_RGB_565;
> +	case DRM_FORMAT_XRGB1555:
> +		return SCALER_ARGB1555;
> +	case DRM_FORMAT_ARGB1555:
> +		return SCALER_ARGB1555;
> +	case DRM_FORMAT_XRGB4444:
> +		return SCALER_ARGB4444;
> +	case DRM_FORMAT_ARGB4444:
> +		return SCALER_ARGB4444;
> +	case DRM_FORMAT_XRGB8888:
> +		return SCALER_ARGB8888;
> +	case DRM_FORMAT_ARGB8888:
> +		return SCALER_ARGB8888;
> +	case DRM_FORMAT_RGBX8888:
> +		return SCALER_RGBA8888;
> +	case DRM_FORMAT_RGBA8888:
> +		return SCALER_RGBA8888;
> +	default:
> +		break;
> +	}
> +
> +	return 0;
> +}
> +
> +static inline void scaler_enable_int(struct scaler_context *scaler)
> +{
> +	u32 val;
> +
> +	val = SCALER_INT_EN_TIMEOUT |
> +		SCALER_INT_EN_ILLEGAL_BLEND |
> +		SCALER_INT_EN_ILLEGAL_RATIO |
> +		SCALER_INT_EN_ILLEGAL_DST_HEIGHT |
> +		SCALER_INT_EN_ILLEGAL_DST_WIDTH |
> +		SCALER_INT_EN_ILLEGAL_DST_V_POS |
> +		SCALER_INT_EN_ILLEGAL_DST_H_POS |
> +		SCALER_INT_EN_ILLEGAL_DST_C_SPAN |
> +		SCALER_INT_EN_ILLEGAL_DST_Y_SPAN |
> +		SCALER_INT_EN_ILLEGAL_DST_CR_BASE |
> +		SCALER_INT_EN_ILLEGAL_DST_CB_BASE |
> +		SCALER_INT_EN_ILLEGAL_DST_Y_BASE |
> +		SCALER_INT_EN_ILLEGAL_DST_COLOR |
> +		SCALER_INT_EN_ILLEGAL_SRC_HEIGHT |
> +		SCALER_INT_EN_ILLEGAL_SRC_WIDTH |
> +		SCALER_INT_EN_ILLEGAL_SRC_CV_POS |
> +		SCALER_INT_EN_ILLEGAL_SRC_CH_POS |
> +		SCALER_INT_EN_ILLEGAL_SRC_YV_POS |
> +		SCALER_INT_EN_ILLEGAL_SRC_YH_POS |
> +		SCALER_INT_EN_ILLEGAL_DST_SPAN |
> +		SCALER_INT_EN_ILLEGAL_SRC_Y_SPAN |
> +		SCALER_INT_EN_ILLEGAL_SRC_CR_BASE |
> +		SCALER_INT_EN_ILLEGAL_SRC_CB_BASE |
> +		SCALER_INT_EN_ILLEGAL_SRC_Y_BASE |
> +		SCALER_INT_EN_ILLEGAL_SRC_COLOR |
> +		SCALER_INT_EN_FRAME_END;
> +	scaler_write(val, SCALER_INT_EN);
> +}
> +
> +static inline void scaler_set_src_fmt(struct scaler_context *scaler,
> +	u32 src_fmt)
> +{
> +	u32 val;
> +
> +	val = SCALER_SRC_CFG_SET_COLOR_FORMAT(src_fmt);
> +	scaler_write(val, SCALER_SRC_CFG);
> +}
> +
> +static inline void scaler_set_src_base(struct scaler_context *scaler,
> +	struct exynos_drm_ipp_buffer *src_buf)
> +{
> +	static unsigned int bases[] = {
> +		SCALER_SRC_Y_BASE,
> +		SCALER_SRC_CB_BASE,
> +		SCALER_SRC_CR_BASE,
> +	};
> +	int i;
> +
> +	for (i = 0; i < src_buf->format->num_planes; ++i)
> +		scaler_write(src_buf->dma_addr[i], bases[i]);
> +}
> +
> +static inline void scaler_set_src_span(struct scaler_context *scaler,
> +	struct exynos_drm_ipp_buffer *src_buf)
> +{
> +	u32 val;
> +
> +	val = SCALER_SRC_SPAN_SET_Y_SPAN(src_buf->buf.pitch[0] /
> +		src_buf->format->cpp[0]);
> +
> +	if (src_buf->format->num_planes > 1)
> +		val |= SCALER_SRC_SPAN_SET_C_SPAN(src_buf->buf.pitch[1]);
> +
> +	scaler_write(val, SCALER_SRC_SPAN);
> +}
> +
> +static inline void scaler_set_src_luma_pos(struct scaler_context *scaler,
> +	struct drm_exynos_ipp_task_rect *src_pos)
> +{
> +	u32 val;
> +
> +	val = SCALER_SRC_Y_POS_SET_YH_POS(src_pos->x << 2);
> +	val |=  SCALER_SRC_Y_POS_SET_YV_POS(src_pos->y << 2);
> +	scaler_write(val, SCALER_SRC_Y_POS);
> +	scaler_write(val, SCALER_SRC_C_POS); /* ATTENTION! */
> +}
> +
> +static inline void scaler_set_src_wh(struct scaler_context *scaler,
> +	struct drm_exynos_ipp_task_rect *src_pos)
> +{
> +	u32 val;
> +
> +	val = SCALER_SRC_WH_SET_WIDTH(src_pos->w);
> +	val |= SCALER_SRC_WH_SET_HEIGHT(src_pos->h);
> +	scaler_write(val, SCALER_SRC_WH);
> +}
> +
> +static inline void scaler_set_dst_fmt(struct scaler_context *scaler,
> +	u32 dst_fmt)
> +{
> +	u32 val;
> +
> +	val = SCALER_DST_CFG_SET_COLOR_FORMAT(dst_fmt);
> +	scaler_write(val, SCALER_DST_CFG);
> +}
> +
> +static inline void scaler_set_dst_base(struct scaler_context *scaler,
> +	struct exynos_drm_ipp_buffer *dst_buf)
> +{
> +	static unsigned int bases[] = {
> +		SCALER_DST_Y_BASE,
> +		SCALER_DST_CB_BASE,
> +		SCALER_DST_CR_BASE,
> +	};
> +	int i;
> +
> +	for (i = 0; i < dst_buf->format->num_planes; ++i)
> +		scaler_write(dst_buf->dma_addr[i], bases[i]);
> +}
> +
> +static inline void scaler_set_dst_span(struct scaler_context *scaler,
> +	struct exynos_drm_ipp_buffer *dst_buf)
> +{
> +	u32 val;
> +
> +	val = SCALER_DST_SPAN_SET_Y_SPAN(dst_buf->buf.pitch[0] /
> +		dst_buf->format->cpp[0]);
> +
> +	if (dst_buf->format->num_planes > 1)
> +		val |= SCALER_DST_SPAN_SET_C_SPAN(dst_buf->buf.pitch[1]);
> +
> +	scaler_write(val, SCALER_DST_SPAN);
> +}
> +
> +static inline void scaler_set_dst_luma_pos(struct scaler_context *scaler,
> +	struct drm_exynos_ipp_task_rect *dst_pos)
> +{
> +	u32 val;
> +
> +	val = SCALER_DST_WH_SET_WIDTH(dst_pos->w);
> +	val |= SCALER_DST_WH_SET_HEIGHT(dst_pos->h);
> +	scaler_write(val, SCALER_DST_WH);
> +}
> +
> +static inline void scaler_set_dst_wh(struct scaler_context *scaler,
> +	struct drm_exynos_ipp_task_rect *dst_pos)
> +{
> +	u32 val;
> +
> +	val = SCALER_DST_POS_SET_H_POS(dst_pos->x);
> +	val |= SCALER_DST_POS_SET_V_POS(dst_pos->y);
> +	scaler_write(val, SCALER_DST_POS);
> +}
> +
> +static inline void scaler_set_hv_ratio(struct scaler_context *scaler,
> +	unsigned int rotation,
> +	struct drm_exynos_ipp_task_rect *src_pos,
> +	struct drm_exynos_ipp_task_rect *dst_pos)
> +{
> +	u32 val, h_ratio, v_ratio;
> +
> +	if (drm_rotation_90_or_270(rotation)) {
> +		h_ratio = (src_pos->h << 16) / dst_pos->w;
> +		v_ratio = (src_pos->w << 16) / dst_pos->h;
> +	} else {
> +		h_ratio = (src_pos->w << 16) / dst_pos->w;
> +		v_ratio = (src_pos->h << 16) / dst_pos->h;
> +	}
> +
> +	val = SCALER_H_RATIO_SET(h_ratio);
> +	scaler_write(val, SCALER_H_RATIO);
> +
> +	val = SCALER_V_RATIO_SET(v_ratio);
> +	scaler_write(val, SCALER_V_RATIO);
> +}
> +
> +static inline void scaler_set_rotation(struct scaler_context *scaler,
> +	unsigned int rotation)
> +{
> +	u32 val = 0;
> +
> +	if (rotation & DRM_MODE_ROTATE_90)
> +		val |= SCALER_ROT_CFG_SET_ROTMODE(SCALER_ROT_MODE_90);
> +	else if (rotation & DRM_MODE_ROTATE_180)
> +		val |= SCALER_ROT_CFG_SET_ROTMODE(SCALER_ROT_MODE_180);
> +	else if (rotation & DRM_MODE_ROTATE_270)
> +		val |= SCALER_ROT_CFG_SET_ROTMODE(SCALER_ROT_MODE_270);
> +	if (rotation & DRM_MODE_REFLECT_X)
> +		val |= SCALER_ROT_CFG_FLIP_X_EN;
> +	if (rotation & DRM_MODE_REFLECT_Y)
> +		val |= SCALER_ROT_CFG_FLIP_Y_EN;
> +	scaler_write(val, SCALER_ROT_CFG);
> +}
> +
> +static inline void scaler_set_csc(struct scaler_context *scaler,
> +	const struct drm_format_info *fmt)
> +{
> +	static const u32 csc_mtx[2][3][3] = {
> +		{ /* YCbCr to RGB */
> +			{0x254, 0x000, 0x331},
> +			{0x254, 0xf38, 0xe60},
> +			{0x254, 0x409, 0x000},
> +		},
> +		{ /* RGB to YCbCr */
> +			{0x084, 0x102, 0x032},
> +			{0xfb4, 0xf6b, 0x0e1},
> +			{0x0e1, 0xf44, 0xfdc},
> +		},
> +	};
> +	int i, j, dir;
> +
> +	switch (fmt->format) {
> +	case DRM_FORMAT_RGB565:
> +	case DRM_FORMAT_XRGB1555:
> +	case DRM_FORMAT_ARGB1555:
> +	case DRM_FORMAT_XRGB4444:
> +	case DRM_FORMAT_ARGB4444:
> +	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_RGBX8888:
> +	case DRM_FORMAT_RGBA8888:
> +		dir = 1;
> +		break;
> +	default:
> +		dir = 0;
> +	}
> +
> +	for (i = 0; i < 3; i++)
> +		for (j = 0; j < 3; j++)
> +			scaler_write(csc_mtx[dir][i][j], SCALER_CSC_COEF(j, i));
> +}
> +
> +static inline void scaler_set_timer(struct scaler_context *scaler,
> +	unsigned int timer, unsigned int divider)
> +{
> +	u32 val;
> +
> +	val = SCALER_TIMEOUT_CTRL_TIMER_ENABLE;
> +	val |= SCALER_TIMEOUT_CTRL_SET_TIMER_VALUE(timer);
> +	val |= SCALER_TIMEOUT_CTRL_SET_TIMER_DIV(divider);
> +	scaler_write(val, SCALER_TIMEOUT_CTRL);
> +}
> +
> +static inline void scaler_start_hw(struct scaler_context *scaler)
> +{
> +	scaler_write(SCALER_CFG_START_CMD, SCALER_CFG);
> +}
> +
> +static int scaler_commit(struct exynos_drm_ipp *ipp,
> +			  struct exynos_drm_ipp_task *task)
> +{
> +	struct scaler_context *scaler =
> +			container_of(ipp, struct scaler_context, ipp);
> +
> +	u32 src_fmt = scaler_get_format(task->src.buf.fourcc);
> +	struct drm_exynos_ipp_task_rect *src_pos = &task->src.rect;
> +
> +	u32 dst_fmt = scaler_get_format(task->dst.buf.fourcc);
> +	struct drm_exynos_ipp_task_rect *dst_pos = &task->dst.rect;
> +
> +	scaler->task = task;
> +
> +	pm_runtime_get_sync(scaler->dev);
> +
> +	scaler_set_src_fmt(scaler, src_fmt);
> +	scaler_set_src_base(scaler, &task->src);
> +	scaler_set_src_span(scaler, &task->src);
> +	scaler_set_src_luma_pos(scaler, src_pos);
> +	scaler_set_src_wh(scaler, src_pos);
> +
> +	scaler_set_dst_fmt(scaler, dst_fmt);
> +	scaler_set_dst_base(scaler, &task->dst);
> +	scaler_set_dst_span(scaler, &task->dst);
> +	scaler_set_dst_luma_pos(scaler, dst_pos);
> +	scaler_set_dst_wh(scaler, dst_pos);
> +
> +	scaler_set_hv_ratio(scaler, task->transform.rotation, src_pos, dst_pos);
> +	scaler_set_rotation(scaler, task->transform.rotation);
> +
> +	scaler_set_csc(scaler, task->src.format);
> +
> +	scaler_set_timer(scaler, 0xffff, 0xf);
> +
> +	scaler_enable_int(scaler);
> +	scaler_start_hw(scaler);
> +
> +	return 0;
> +}
> +
> +static struct exynos_drm_ipp_funcs ipp_funcs = {
> +	.commit = scaler_commit,
> +};
> +
> +static inline void scaler_disable_int(struct scaler_context *scaler)
> +{
> +	scaler_write(0, SCALER_INT_EN);
> +}
> +
> +static inline u32 scaler_get_int_status(struct scaler_context *scaler)
> +{
> +	return scaler_read(SCALER_INT_STATUS);
> +}
> +
> +static inline bool scaler_task_done(u32 val)
> +{
> +	return val & SCALER_INT_STATUS_FRAME_END ? 0 : -EINVAL;
> +}
> +
> +static irqreturn_t scaler_irq_handler(int irq, void *arg)
> +{
> +	struct scaler_context *scaler = arg;
> +
> +	u32 val = scaler_get_int_status(scaler);
> +
> +	scaler_disable_int(scaler);
> +
> +	if (scaler->task) {
> +		struct exynos_drm_ipp_task *task = scaler->task;
> +
> +		scaler->task = NULL;
> +		pm_runtime_mark_last_busy(scaler->dev);
> +		pm_runtime_put_autosuspend(scaler->dev);
> +		exynos_drm_ipp_task_done(task, scaler_task_done(val));
> +	}
> +
> +	return IRQ_HANDLED;
> +}
> +
> +static int scaler_bind(struct device *dev, struct device *master, void *data)
> +{
> +	struct scaler_context *scaler = dev_get_drvdata(dev);
> +	struct drm_device *drm_dev = data;
> +	struct exynos_drm_ipp *ipp = &scaler->ipp;
> +
> +	scaler->drm_dev = drm_dev;
> +	drm_iommu_attach_device(drm_dev, dev);
> +
> +	exynos_drm_ipp_register(drm_dev, ipp, &ipp_funcs,
> +			DRM_EXYNOS_IPP_CAP_CROP | DRM_EXYNOS_IPP_CAP_ROTATE |
> +			DRM_EXYNOS_IPP_CAP_SCALE | DRM_EXYNOS_IPP_CAP_CONVERT,
> +			scaler->scaler_data->formats,
> +			scaler->scaler_data->num_formats, "scaler");
> +
> +	dev_info(dev, "The exynos scaler has been probed successfully\n");
> +
> +	return 0;
> +}
> +
> +static void scaler_unbind(struct device *dev, struct device *master,
> +			void *data)
> +{
> +	struct scaler_context *scaler = dev_get_drvdata(dev);
> +	struct drm_device *drm_dev = data;
> +	struct exynos_drm_ipp *ipp = &scaler->ipp;
> +
> +	exynos_drm_ipp_unregister(drm_dev, ipp);
> +	drm_iommu_detach_device(scaler->drm_dev, scaler->dev);
> +}
> +
> +static const struct component_ops scaler_component_ops = {
> +	.bind	= scaler_bind,
> +	.unbind = scaler_unbind,
> +};
> +
> +static int scaler_probe(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +	struct resource	*regs_res;
> +	struct scaler_context *scaler;
> +	int irq;
> +	int ret, i;
> +
> +	scaler = devm_kzalloc(dev, sizeof(*scaler), GFP_KERNEL);
> +	if (!scaler)
> +		return -ENOMEM;
> +
> +	scaler->scaler_data =
> +		(struct scaler_data *)of_device_get_match_data(dev);
> +
> +	scaler->dev = dev;
> +	regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	scaler->regs = devm_ioremap_resource(dev, regs_res);
> +	if (IS_ERR(scaler->regs))
> +		return PTR_ERR(scaler->regs);
> +
> +	irq = platform_get_irq(pdev, 0);
> +	if (irq < 0) {
> +		dev_err(dev, "failed to get irq\n");
> +		return irq;
> +	}
> +
> +	ret = devm_request_threaded_irq(dev, irq, NULL,	scaler_irq_handler,
> +					IRQF_ONESHOT, "drm_scaler", scaler);
> +	if (ret < 0) {
> +		dev_err(dev, "failed to request irq\n");
> +		return ret;
> +	}
> +
> +	for (i = 0; i < scaler->scaler_data->num_clk; ++i) {
> +		scaler->clock[i] = devm_clk_get(dev, scaler->scaler_data->clk_name[i]);
> +		if (IS_ERR(scaler->clock[i])) {
> +			dev_err(dev, "failed to get clock\n");
> +			return PTR_ERR(scaler->clock[i]);
> +		}
> +	}
> +
> +	pm_runtime_use_autosuspend(dev);
> +	pm_runtime_set_autosuspend_delay(dev, SCALER_AUTOSUSPEND_DELAY);
> +	pm_runtime_enable(dev);
> +	platform_set_drvdata(pdev, scaler);
> +
> +	ret = component_add(dev, &scaler_component_ops);
> +	if (ret)
> +		goto err_ippdrv_register;
> +
> +	return 0;
> +
> +err_ippdrv_register:
> +	pm_runtime_dont_use_autosuspend(dev);
> +	pm_runtime_disable(dev);
> +	return ret;
> +}
> +
> +static int scaler_remove(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +
> +	component_del(dev, &scaler_component_ops);
> +	pm_runtime_dont_use_autosuspend(dev);
> +	pm_runtime_disable(dev);
> +
> +	return 0;
> +}
> +
> +#ifdef CONFIG_PM
> +
> +static int clk_disable_unprepare_wrapper(struct clk *clk)
> +{
> +	clk_disable_unprepare(clk);
> +
> +	return 0;
> +}
> +
> +static int scaler_clk_ctrl(struct scaler_context *scaler, bool enable)
> +{
> +	int (*clk_fun)(struct clk *clk), i;
> +
> +	clk_fun = enable ? clk_prepare_enable : clk_disable_unprepare_wrapper;
> +
> +	for (i = 0; i < scaler->scaler_data->num_clk; ++i)
> +		clk_fun(scaler->clock[i]);
> +
> +	return 0;
> +}
> +
> +static int scaler_runtime_suspend(struct device *dev)
> +{
> +	struct scaler_context *scaler = dev_get_drvdata(dev);
> +
> +	return  scaler_clk_ctrl(scaler, false);
> +}
> +
> +static int scaler_runtime_resume(struct device *dev)
> +{
> +	struct scaler_context *scaler = dev_get_drvdata(dev);
> +
> +	return  scaler_clk_ctrl(scaler, true);
> +}
> +#endif
> +
> +static const struct dev_pm_ops scaler_pm_ops = {
> +	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
> +				pm_runtime_force_resume)
> +	SET_RUNTIME_PM_OPS(scaler_runtime_suspend, scaler_runtime_resume, NULL)
> +};
> +
> +static const struct drm_exynos_ipp_limit scaler_5420_two_pixel_hv_limits[] = {
> +	{ IPP_SIZE_LIMIT(BUFFER, .h = { 16, SZ_8K }, .v = { 16, SZ_8K }) },
> +	{ IPP_SIZE_LIMIT(AREA, .h.align = 2, .v.align = 2) },
> +	{ IPP_SCALE_LIMIT(.h = { 65536 * 1 / 4, 65536 * 16 },
> +			  .v = { 65536 * 1 / 4, 65536 * 16 }) },
> +};
> +
> +static const struct drm_exynos_ipp_limit scaler_5420_two_pixel_h_limits[] = {
> +	{ IPP_SIZE_LIMIT(BUFFER, .h = { 16, SZ_8K }, .v = { 16, SZ_8K }) },
> +	{ IPP_SIZE_LIMIT(AREA, .h.align = 2, .v.align = 1) },
> +	{ IPP_SCALE_LIMIT(.h = { 65536 * 1 / 4, 65536 * 16 },
> +			  .v = { 65536 * 1 / 4, 65536 * 16 }) },
> +};
> +
> +static const struct drm_exynos_ipp_limit scaler_5420_one_pixel_limits[] = {
> +	{ IPP_SIZE_LIMIT(BUFFER, .h = { 16, SZ_8K }, .v = { 16, SZ_8K }) },
> +	{ IPP_SCALE_LIMIT(.h = { 65536 * 1 / 4, 65536 * 16 },
> +			  .v = { 65536 * 1 / 4, 65536 * 16 }) },
> +};
> +
> +static const struct exynos_drm_ipp_formats exynos5420_formats[] = {
> +	/* SCALER_YUV420_2P_UV */
> +	{ IPP_SRCDST_FORMAT(NV21, scaler_5420_two_pixel_hv_limits) },
> +
> +	/* SCALER_YUV420_2P_VU */
> +	{ IPP_SRCDST_FORMAT(NV12, scaler_5420_two_pixel_hv_limits) },
> +
> +	/* SCALER_YUV420_3P */
> +	{ IPP_SRCDST_FORMAT(YUV420, scaler_5420_two_pixel_hv_limits) },
> +
> +	/* SCALER_YUV422_1P_YUYV */
> +	{ IPP_SRCDST_FORMAT(YUYV, scaler_5420_two_pixel_h_limits) },
> +
> +	/* SCALER_YUV422_1P_UYVY */
> +	{ IPP_SRCDST_FORMAT(UYVY, scaler_5420_two_pixel_h_limits) },
> +
> +	/* SCALER_YUV422_1P_YVYU */
> +	{ IPP_SRCDST_FORMAT(YVYU, scaler_5420_two_pixel_h_limits) },
> +
> +	/* SCALER_YUV422_2P_UV */
> +	{ IPP_SRCDST_FORMAT(NV61, scaler_5420_two_pixel_h_limits) },
> +
> +	/* SCALER_YUV422_2P_VU */
> +	{ IPP_SRCDST_FORMAT(NV16, scaler_5420_two_pixel_h_limits) },
> +
> +	/* SCALER_YUV422_3P */
> +	{ IPP_SRCDST_FORMAT(YUV422, scaler_5420_two_pixel_h_limits) },
> +
> +	/* SCALER_YUV444_2P_UV */
> +	{ IPP_SRCDST_FORMAT(NV42, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_YUV444_2P_VU */
> +	{ IPP_SRCDST_FORMAT(NV24, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_YUV444_3P */
> +	{ IPP_SRCDST_FORMAT(YUV444, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_RGB_565 */
> +	{ IPP_SRCDST_FORMAT(RGB565, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_ARGB1555 */
> +	{ IPP_SRCDST_FORMAT(XRGB1555, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_ARGB1555 */
> +	{ IPP_SRCDST_FORMAT(ARGB1555, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_ARGB4444 */
> +	{ IPP_SRCDST_FORMAT(XRGB4444, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_ARGB4444 */
> +	{ IPP_SRCDST_FORMAT(ARGB4444, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_ARGB8888 */
> +	{ IPP_SRCDST_FORMAT(XRGB8888, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_ARGB8888 */
> +	{ IPP_SRCDST_FORMAT(ARGB8888, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_RGBA8888 */
> +	{ IPP_SRCDST_FORMAT(RGBX8888, scaler_5420_one_pixel_limits) },
> +
> +	/* SCALER_RGBA8888 */
> +	{ IPP_SRCDST_FORMAT(RGBA8888, scaler_5420_one_pixel_limits) },
> +};
> +
> +static const struct scaler_data exynos5420_data = {
> +	.clk_name	= {"mscl"},
> +	.num_clk	= 1,
> +	.formats	= exynos5420_formats,
> +	.num_formats	= ARRAY_SIZE(exynos5420_formats),
> +};
> +
> +static const struct scaler_data exynos5433_data = {
> +	.clk_name	= {"pclk", "aclk", "aclk_xiu"},
> +	.num_clk	= 3,
> +	.formats	= exynos5420_formats, /* intentional */
> +	.num_formats	= ARRAY_SIZE(exynos5420_formats),
> +};
> +
> +static const struct of_device_id exynos_scaler_match[] = {
> +	{
> +		.compatible = "samsung,exynos5420-scaler",
> +		.data = &exynos5420_data,
> +	}, {
> +		.compatible = "samsung,exynos5433-scaler",
> +		.data = &exynos5433_data,
> +	}, {
> +	},
> +};
> +MODULE_DEVICE_TABLE(of, exynos_scaler_match);
> +
> +struct platform_driver scaler_driver = {
> +	.probe		= scaler_probe,
> +	.remove		= scaler_remove,
> +	.driver		= {
> +		.name	= "exynos-scaler",
> +		.owner	= THIS_MODULE,
> +		.pm	= &scaler_pm_ops,
> +		.of_match_table = exynos_scaler_match,
> +	},
> +};
> diff --git a/drivers/gpu/drm/exynos/regs-scaler.h b/drivers/gpu/drm/exynos/regs-scaler.h
> new file mode 100644
> index 000000000000..fc7ccad75e74
> --- /dev/null
> +++ b/drivers/gpu/drm/exynos/regs-scaler.h
> @@ -0,0 +1,426 @@
> +/* drivers/gpu/drm/exynos/regs-scaler.h
> + *
> + * Copyright (c) 2017 Samsung Electronics Co., Ltd.
> + *		http://www.samsung.com/
> + * Author: Andrzej Pietrasiewicz <andrzej.p at samsung.com>
> + *
> + * Register definition file for Samsung scaler driver
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#ifndef EXYNOS_REGS_SCALER_H
> +#define EXYNOS_REGS_SCALER_H
> +
> +/* Register part */
> +
> +/* Global setting */
> +#define SCALER_STATUS			0x0	/* no shadow */
> +#define SCALER_CFG			0x4
> +
> +/* Interrupt */
> +#define SCALER_INT_EN			0x8	/* no shadow */
> +#define SCALER_INT_STATUS		0xc	/* no shadow */
> +
> +/* SRC */
> +#define SCALER_SRC_CFG			0x10
> +#define SCALER_SRC_Y_BASE		0x14
> +#define SCALER_SRC_CB_BASE		0x18
> +#define SCALER_SRC_CR_BASE		0x294
> +#define SCALER_SRC_SPAN			0x1c
> +#define SCALER_SRC_Y_POS		0x20
> +#define SCALER_SRC_WH			0x24
> +#define SCALER_SRC_C_POS		0x28
> +
> +/* DST */
> +#define SCALER_DST_CFG			0x30
> +#define SCALER_DST_Y_BASE		0x34
> +#define SCALER_DST_CB_BASE		0x38
> +#define SCALER_DST_CR_BASE		0x298
> +#define SCALER_DST_SPAN			0x3c
> +#define SCALER_DST_WH			0x40
> +#define SCALER_DST_POS			0x44
> +
> +/* Ratio */
> +#define SCALER_H_RATIO			0x50
> +#define SCALER_V_RATIO			0x54
> +
> +/* Rotation */
> +#define SCALER_ROT_CFG			0x58
> +
> +/* Coefficient */
> +/*
> + * YHCOEF_{x}{A|B|C|D}			CHCOEF_{x}{A|B|C|D}
> + *
> + *	A	B	C	D	A	B	C	D
> + * 0	60	64	68	6c	140	144	148	14c
> + * 1	70	74	78	7c	150	154	158	15c
> + * 2	80	84	88	8c	160	164	168	16c
> + * 3	90	94	98	9c	170	174	178	17c
> + * 4	a0	a4	a8	ac	180	184	188	18c
> + * 5	b0	b4	b8	bc	190	194	198	19c
> + * 6	c0	c4	c8	cc	1a0	1a4	1a8	1ac
> + * 7	d0	d4	d8	dc	1b0	1b4	1b8	1bc
> + * 8	e0	e4	e8	ec	1c0	1c4	1c8	1cc
> + *
> + *
> + * YVCOEF_{x}{A|B}			CVCOEF_{x}{A|B}
> + *
> + *	A	B			A	B
> + * 0	f0	f4			1d0	1d4
> + * 1	f8	fc			1d8	1dc
> + * 2	100	104			1e0	1e4
> + * 3	108	10c			1e8	1ec
> + * 4	110	114			1f0	1f4
> + * 5	118	11c			1f8	1fc
> + * 6	120	124			200	204
> + * 7	128	12c			208	20c
> + * 8	130	134			210	214
> + */
> +#define _SCALER_HCOEF_DELTA(r, c)	((r) * 0x10 + (c) * 0x4)
> +#define _SCALER_VCOEF_DELTA(r, c)	((r) * 0x8 + (c) * 0x4)
> +
> +#define SCALER_YHCOEF(r, c)		(0x60 + _SCALER_HCOEF_DELTA((r), (c)))
> +#define SCALER_YVCOEF(r, c)		(0xf0 + _SCALER_VCOEF_DELTA((r), (c)))
> +#define SCALER_CHCOEF(r, c)		(0x140 + _SCALER_HCOEF_DELTA((r), (c)))
> +#define SCALER_CVCOEF(r, c)		(0x1d0 + _SCALER_VCOEF_DELTA((r), (c)))
> +
> +
> +/* Color Space Conversion */
> +#define SCALER_CSC_COEF(x, y)		(0x220 + (y) * 0xc + (x) * 0x4)
> +
> +/* Dithering */
> +#define SCALER_DITH_CFG			0x250
> +
> +/* Version Number */
> +#define SCALER_VER			0x260	/* no shadow */
> +
> +/* Cycle count and Timeout */
> +#define SCALER_CYCLE_COUNT		0x278	/* no shadow */
> +#define SCALER_TIMEOUT_CTRL		0x2c0	/* no shadow */
> +#define SCALER_TIMEOUT_CNT		0x2c4	/* no shadow */
> +
> +/* Blending */
> +#define SCALER_SRC_BLEND_COLOR		0x280
> +#define SCALER_SRC_BLEND_ALPHA		0x284
> +#define SCALER_DST_BLEND_COLOR		0x288
> +#define SCALER_DST_BLEND_ALPHA		0x28c
> +
> +/* Color Fill */
> +#define SCALER_FILL_COLOR		0x290
> +
> +/* Multiple Command Queue */
> +#define SCALER_ADDR_Q_CONFIG		0x2a0	/* no shadow */
> +#define SCALER_SRC_ADDR_Q_STATUS	0x2a4	/* no shadow */
> +#define SCALER_SRC_ADDR_Q		0x2a8	/* no shadow */
> +
> +/* CRC */
> +#define SCALER_CRC_COLOR00_10		0x2b0	/* no shadow */
> +#define SCALER_CRC_COLOR20_30		0x2b4	/* no shadow */
> +#define SCALER_CRC_COLOR01_11		0x2b8	/* no shadow */
> +#define SCALER_CRC_COLOR21_31		0x2bc	/* no shadow */
> +
> +/* Shadow Registers */
> +#define SCALER_SHADOW_OFFSET		0x1000
> +
> +
> +/* Bit definition part */
> +#define SCALER_MASK(hi_b, lo_b)		((1 << ((hi_b) - (lo_b) + 1)) - 1)
> +#define SCALER_GET(reg, hi_b, lo_b)	\
> +	(((reg) >> (lo_b)) & SCALER_MASK(hi_b, lo_b))
> +#define SCALER_SET(val, hi_b, lo_b) \
> +	(((val) & SCALER_MASK(hi_b, lo_b)) << lo_b)
> +
> +/* SCALER_STATUS */
> +#define SCALER_STATUS_SCALER_RUNNING		(1 << 1)
> +#define SCALER_STATUS_SCALER_READY_CLK_DOWN	(1 << 0)
> +
> +/* SCALER_CFG */
> +#define SCALER_CFG_FILL_EN			(1 << 24)
> +#define SCALER_CFG_BLEND_COLOR_DIVIDE_ALPHA_EN	(1 << 17)
> +#define SCALER_CFG_BLEND_EN			(1 << 16)
> +#define SCALER_CFG_CSC_Y_OFFSET_SRC_EN		(1 << 10)
> +#define SCALER_CFG_CSC_Y_OFFSET_DST_EN		(1 << 9)
> +#define SCALER_CFG_16_BURST_MODE		(1 << 8)
> +#define SCALER_CFG_SOFT_RESET			(1 << 1)
> +#define SCALER_CFG_START_CMD			(1 << 0)
> +
> +/* SCALER_INT_EN */
> +#define SCALER_INT_EN_TIMEOUT			(1 << 31)
> +#define SCALER_INT_EN_ILLEGAL_BLEND		(1 << 24)
> +#define SCALER_INT_EN_ILLEGAL_RATIO		(1 << 23)
> +#define SCALER_INT_EN_ILLEGAL_DST_HEIGHT	(1 << 22)
> +#define SCALER_INT_EN_ILLEGAL_DST_WIDTH		(1 << 21)
> +#define SCALER_INT_EN_ILLEGAL_DST_V_POS		(1 << 20)
> +#define SCALER_INT_EN_ILLEGAL_DST_H_POS		(1 << 19)
> +#define SCALER_INT_EN_ILLEGAL_DST_C_SPAN	(1 << 18)
> +#define SCALER_INT_EN_ILLEGAL_DST_Y_SPAN	(1 << 17)
> +#define SCALER_INT_EN_ILLEGAL_DST_CR_BASE	(1 << 16)
> +#define SCALER_INT_EN_ILLEGAL_DST_CB_BASE	(1 << 15)
> +#define SCALER_INT_EN_ILLEGAL_DST_Y_BASE	(1 << 14)
> +#define SCALER_INT_EN_ILLEGAL_DST_COLOR		(1 << 13)
> +#define SCALER_INT_EN_ILLEGAL_SRC_HEIGHT	(1 << 12)
> +#define SCALER_INT_EN_ILLEGAL_SRC_WIDTH		(1 << 11)
> +#define SCALER_INT_EN_ILLEGAL_SRC_CV_POS	(1 << 10)
> +#define SCALER_INT_EN_ILLEGAL_SRC_CH_POS	(1 << 9)
> +#define SCALER_INT_EN_ILLEGAL_SRC_YV_POS	(1 << 8)
> +#define SCALER_INT_EN_ILLEGAL_SRC_YH_POS	(1 << 7)
> +#define SCALER_INT_EN_ILLEGAL_DST_SPAN		(1 << 6)
> +#define SCALER_INT_EN_ILLEGAL_SRC_Y_SPAN	(1 << 5)
> +#define SCALER_INT_EN_ILLEGAL_SRC_CR_BASE	(1 << 4)
> +#define SCALER_INT_EN_ILLEGAL_SRC_CB_BASE	(1 << 3)
> +#define SCALER_INT_EN_ILLEGAL_SRC_Y_BASE	(1 << 2)
> +#define SCALER_INT_EN_ILLEGAL_SRC_COLOR		(1 << 1)
> +#define SCALER_INT_EN_FRAME_END			(1 << 0)
> +
> +/* SCALER_INT_STATUS */
> +#define SCALER_INT_STATUS_TIMEOUT		(1 << 31)
> +#define SCALER_INT_STATUS_ILLEGAL_BLEND		(1 << 24)
> +#define SCALER_INT_STATUS_ILLEGAL_RATIO		(1 << 23)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_HEIGHT	(1 << 22)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_WIDTH	(1 << 21)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_V_POS	(1 << 20)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_H_POS	(1 << 19)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_C_SPAN	(1 << 18)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_Y_SPAN	(1 << 17)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_CR_BASE	(1 << 16)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_CB_BASE	(1 << 15)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_Y_BASE	(1 << 14)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_COLOR	(1 << 13)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_HEIGHT	(1 << 12)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_WIDTH	(1 << 11)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_CV_POS	(1 << 10)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_CH_POS	(1 << 9)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_YV_POS	(1 << 8)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_YH_POS	(1 << 7)
> +#define SCALER_INT_STATUS_ILLEGAL_DST_SPAN	(1 << 6)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_Y_SPAN	(1 << 5)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_CR_BASE	(1 << 4)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_CB_BASE	(1 << 3)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_Y_BASE	(1 << 2)
> +#define SCALER_INT_STATUS_ILLEGAL_SRC_COLOR	(1 << 1)
> +#define SCALER_INT_STATUS_FRAME_END		(1 << 0)
> +
> +/* SCALER_SRC_CFG */
> +#define SCALER_SRC_CFG_TILE_EN			(1 << 10)
> +#define SCALER_SRC_CFG_GET_BYTE_SWAP(r)		SCALER_GET(r, 6, 5)
> +#define SCALER_SRC_CFG_SET_BYTE_SWAP(v)		SCALER_SET(v, 6, 5)
> +#define SCALER_SRC_CFG_GET_COLOR_FORMAT(r)	SCALER_GET(r, 4, 0)
> +#define SCALER_SRC_CFG_SET_COLOR_FORMAT(v)	SCALER_SET(v, 4, 0)
> +#define SCALER_YUV420_2P_UV			0
> +#define SCALER_YUV422_2P_UV			2
> +#define SCALER_YUV444_2P_UV			3
> +#define SCALER_RGB_565				4
> +#define SCALER_ARGB1555				5
> +#define SCALER_ARGB8888				6
> +#define SCALER_ARGB8888_PRE			7
> +#define SCALER_YUV422_1P_YVYU			9
> +#define SCALER_YUV422_1P_YUYV			10
> +#define SCALER_YUV422_1P_UYVY			11
> +#define SCALER_ARGB4444				12
> +#define SCALER_L8A8				13
> +#define SCALER_RGBA8888				14
> +#define SCALER_L8				15
> +#define SCALER_YUV420_2P_VU			16
> +#define SCALER_YUV422_2P_VU			18
> +#define SCALER_YUV444_2P_VU			19
> +#define SCALER_YUV420_3P			20
> +#define SCALER_YUV422_3P			22
> +#define SCALER_YUV444_3P			23
> +
> +/* SCALER_SRC_SPAN */
> +#define SCALER_SRC_SPAN_GET_C_SPAN(r)		SCALER_GET(r, 29, 16)
> +#define SCALER_SRC_SPAN_SET_C_SPAN(v)		SCALER_SET(v, 29, 16)
> +#define SCALER_SRC_SPAN_GET_Y_SPAN(r)		SCALER_GET(r, 13, 0)
> +#define SCALER_SRC_SPAN_SET_Y_SPAN(v)		SCALER_SET(v, 13, 0)
> +
> +/* SCALER_SRC_Y_POS */
> +#define SCALER_SRC_Y_POS_GET_YH_POS(r)		SCALER_GET(r, 31, 16)
> +#define SCALER_SRC_Y_POS_SET_YH_POS(v)		SCALER_SET(v, 31, 16)
> +#define SCALER_SRC_Y_POS_GET_YV_POS(r)		SCALER_GET(r, 15, 0)
> +#define SCALER_SRC_Y_POS_SET_YV_POS(v)		SCALER_SET(v, 15, 0)
> +
> +/* SCALER_SRC_WH */
> +#define SCALER_SRC_WH_GET_WIDTH(r)		SCALER_GET(r, 29, 16)
> +#define SCALER_SRC_WH_SET_WIDTH(v)		SCALER_SET(v, 29, 16)
> +#define SCALER_SRC_WH_GET_HEIGHT(r)		SCALER_GET(r, 13, 0)
> +#define SCALER_SRC_WH_SET_HEIGHT(v)		SCALER_SET(v, 13, 0)
> +
> +/* SCALER_SRC_C_POS */
> +#define SCALER_SRC_C_POS_GET_CH_POS(r)		SCALER_GET(r, 31, 16)
> +#define SCALER_SRC_C_POS_SET_CH_POS(v)		SCALER_SET(v, 31, 16)
> +#define SCALER_SRC_C_POS_GET_CV_POS(r)		SCALER_GET(r, 15, 0)
> +#define SCALER_SRC_C_POS_SET_CV_POS(v)		SCALER_SET(v, 15, 0)
> +
> +/* SCALER_DST_CFG */
> +#define SCALER_DST_CFG_GET_BYTE_SWAP(r)		SCALER_GET(r, 6, 5)
> +#define SCALER_DST_CFG_SET_BYTE_SWAP(v)		SCALER_SET(v, 6, 5)
> +#define SCALER_DST_CFG_GET_COLOR_FORMAT(r)	SCALER_GET(r, 4, 0)
> +#define SCALER_DST_CFG_SET_COLOR_FORMAT(v)	SCALER_SET(v, 4, 0)
> +
> +/* SCALER_DST_SPAN */
> +#define SCALER_DST_SPAN_GET_C_SPAN(r)		SCALER_GET(r, 29, 16)
> +#define SCALER_DST_SPAN_SET_C_SPAN(v)		SCALER_SET(v, 29, 16)
> +#define SCALER_DST_SPAN_GET_Y_SPAN(r)		SCALER_GET(r, 13, 0)
> +#define SCALER_DST_SPAN_SET_Y_SPAN(v)		SCALER_SET(v, 13, 0)
> +
> +/* SCALER_DST_WH */
> +#define SCALER_DST_WH_GET_WIDTH(r)		SCALER_GET(r, 29, 16)
> +#define SCALER_DST_WH_SET_WIDTH(v)		SCALER_SET(v, 29, 16)
> +#define SCALER_DST_WH_GET_HEIGHT(r)		SCALER_GET(r, 13, 0)
> +#define SCALER_DST_WH_SET_HEIGHT(v)		SCALER_SET(v, 13, 0)
> +
> +/* SCALER_DST_POS */
> +#define SCALER_DST_POS_GET_H_POS(r)		SCALER_GET(r, 29, 16)
> +#define SCALER_DST_POS_SET_H_POS(v)		SCALER_SET(v, 29, 16)
> +#define SCALER_DST_POS_GET_V_POS(r)		SCALER_GET(r, 13, 0)
> +#define SCALER_DST_POS_SET_V_POS(v)		SCALER_SET(v, 13, 0)
> +
> +/* SCALER_H_RATIO */
> +#define SCALER_H_RATIO_GET(r)			SCALER_GET(r, 18, 0)
> +#define SCALER_H_RATIO_SET(v)			SCALER_SET(v, 18, 0)
> +
> +/* SCALER_V_RATIO */
> +#define SCALER_V_RATIO_GET(r)			SCALER_GET(r, 18, 0)
> +#define SCALER_V_RATIO_SET(v)			SCALER_SET(v, 18, 0)
> +
> +/* SCALER_ROT_CFG */
> +#define SCALER_ROT_CFG_FLIP_X_EN		(1 << 3)
> +#define SCALER_ROT_CFG_FLIP_Y_EN		(1 << 2)
> +#define SCALER_ROT_CFG_GET_ROTMODE(r)		SCALER_GET(r, 1, 0)
> +#define SCALER_ROT_CFG_SET_ROTMODE(v)		SCALER_SET(v, 1, 0)
> +#define SCALER_ROT_MODE_90			1
> +#define SCALER_ROT_MODE_180			2
> +#define SCALER_ROT_MODE_270			3
> +
> +/* SCALER_HCOEF, SCALER_VCOEF */
> +#define SCALER_COEF_SHIFT(i)			(16 * (1 - (i) % 2))
> +#define SCALER_COEF_GET(r, i)			\
> +				(((r) >> SCALER_COEF_SHIFT(i)) & 0x1ff)
> +#define SCALER_COEF_SET(v, i)			\
> +				(((v) & 0x1ff) << SCALER_COEF_SHIFT(i))
> +
> +/* SCALER_CSC_COEFxy */
> +#define SCALER_CSC_COEF_GET(r)			SCALER_GET(r, 11, 0)
> +#define SCALER_CSC_COEF_SET(v)			SCALER_SET(v, 11, 0)
> +
> +/* SCALER_DITH_CFG */
> +#define SCALER_DITH_CFG_GET_R_TYPE(r)		SCALER_GET(r, 8, 6)
> +#define SCALER_DITH_CFG_SET_R_TYPE(v)		SCALER_SET(v, 8, 6)
> +#define SCALER_DITH_CFG_GET_G_TYPE(r)		SCALER_GET(r, 5, 3)
> +#define SCALER_DITH_CFG_SET_G_TYPE(v)		SCALER_SET(v, 5, 3)
> +#define SCALER_DITH_CFG_GET_B_TYPE(r)		SCALER_GET(r, 2, 0)
> +#define SCALER_DITH_CFG_SET_B_TYPE(v)		SCALER_SET(v, 2, 0)
> +
> +/* SCALER_TIMEOUT_CTRL */
> +#define SCALER_TIMEOUT_CTRL_GET_TIMER_VALUE(r)	SCALER_GET(r, 31, 16)
> +#define SCALER_TIMEOUT_CTRL_SET_TIMER_VALUE(v)	SCALER_SET(v, 31, 16)
> +#define SCALER_TIMEOUT_CTRL_GET_TIMER_DIV(r)	SCALER_GET(r, 7, 4)
> +#define SCALER_TIMEOUT_CTRL_SET_TIMER_DIV(v)	SCALER_SET(v, 7, 4)
> +#define SCALER_TIMEOUT_CTRL_TIMER_ENABLE	(1 << 0)
> +
> +/* SCALER_TIMEOUT_CNT */
> +#define SCALER_TIMEOUT_CTRL_GET_TIMER_COUNT(r)	SCALER_GET(r, 31, 16)
> +
> +/* SCALER_SRC_BLEND_COLOR */
> +#define SCALER_SRC_BLEND_COLOR_SEL_INV		(1 << 31)
> +#define SCALER_SRC_BLEND_COLOR_GET_SEL(r)	SCALER_GET(r, 30, 29)
> +#define SCALER_SRC_BLEND_COLOR_SET_SEL(v)	SCALER_SET(v, 30, 29)
> +#define SCALER_SRC_BLEND_COLOR_OP_SEL_INV	(1 << 28)
> +#define SCALER_SRC_BLEND_COLOR_GET_OP_SEL(r)	SCALER_GET(r, 27, 24)
> +#define SCALER_SRC_BLEND_COLOR_SET_OP_SEL(v)	SCALER_SET(v, 27, 24)
> +#define SCALER_SRC_BLEND_COLOR_GET_COLOR0(r)	SCALER_GET(r, 23, 16)
> +#define SCALER_SRC_BLEND_COLOR_SET_COLOR0(v)	SCALER_SET(v, 23, 16)
> +#define SCALER_SRC_BLEND_COLOR_GET_COLOR1(r)	SCALER_GET(r, 15, 8)
> +#define SCALER_SRC_BLEND_COLOR_SET_COLOR1(v)	SCALER_SET(v, 15, 8)
> +#define SCALER_SRC_BLEND_COLOR_GET_COLOR2(r)	SCALER_GET(r, 7, 0)
> +#define SCALER_SRC_BLEND_COLOR_SET_COLOR2(v)	SCALER_SET(v, 7, 0)
> +
> +/* SCALER_SRC_BLEND_ALPHA */
> +#define SCALER_SRC_BLEND_ALPHA_SEL_INV		(1 << 31)
> +#define SCALER_SRC_BLEND_ALPHA_GET_SEL(r)	SCALER_GET(r, 30, 29)
> +#define SCALER_SRC_BLEND_ALPHA_SET_SEL(v)	SCALER_SET(v, 30, 29)
> +#define SCALER_SRC_BLEND_ALPHA_OP_SEL_INV	(1 << 28)
> +#define SCALER_SRC_BLEND_ALPHA_GET_OP_SEL(r)	SCALER_GET(r, 27, 24)
> +#define SCALER_SRC_BLEND_ALPHA_SET_OP_SEL(v)	SCALER_SET(v, 27, 24)
> +#define SCALER_SRC_BLEND_ALPHA_GET_ALPHA(r)	SCALER_GET(r, 7, 0)
> +#define SCALER_SRC_BLEND_ALPHA_SET_ALPHA(v)	SCALER_SET(v, 7, 0)
> +
> +/* SCALER_DST_BLEND_COLOR */
> +#define SCALER_DST_BLEND_COLOR_SEL_INV		(1 << 31)
> +#define SCALER_DST_BLEND_COLOR_GET_SEL(r)	SCALER_GET(r, 30, 29)
> +#define SCALER_DST_BLEND_COLOR_SET_SEL(v)	SCALER_SET(v, 30, 29)
> +#define SCALER_DST_BLEND_COLOR_OP_SEL_INV	(1 << 28)
> +#define SCALER_DST_BLEND_COLOR_GET_OP_SEL(r)	SCALER_GET(r, 27, 24)
> +#define SCALER_DST_BLEND_COLOR_SET_OP_SEL(v)	SCALER_SET(v, 27, 24)
> +#define SCALER_DST_BLEND_COLOR_GET_COLOR0(r)	SCALER_GET(r, 23, 16)
> +#define SCALER_DST_BLEND_COLOR_SET_COLOR0(v)	SCALER_SET(v, 23, 16)
> +#define SCALER_DST_BLEND_COLOR_GET_COLOR1(r)	SCALER_GET(r, 15, 8)
> +#define SCALER_DST_BLEND_COLOR_SET_COLOR1(v)	SCALER_SET(v, 15, 8)
> +#define SCALER_DST_BLEND_COLOR_GET_COLOR2(r)	SCALER_GET(r, 7, 0)
> +#define SCALER_DST_BLEND_COLOR_SET_COLOR2(v)	SCALER_SET(v, 7, 0)
> +
> +/* SCALER_DST_BLEND_ALPHA */
> +#define SCALER_DST_BLEND_ALPHA_SEL_INV		(1 << 31)
> +#define SCALER_DST_BLEND_ALPHA_GET_SEL(r)	SCALER_GET(r, 30, 29)
> +#define SCALER_DST_BLEND_ALPHA_SET_SEL(v)	SCALER_SET(v, 30, 29)
> +#define SCALER_DST_BLEND_ALPHA_OP_SEL_INV	(1 << 28)
> +#define SCALER_DST_BLEND_ALPHA_GET_OP_SEL(r)	SCALER_GET(r, 27, 24)
> +#define SCALER_DST_BLEND_ALPHA_SET_OP_SEL(v)	SCALER_SET(v, 27, 24)
> +#define SCALER_DST_BLEND_ALPHA_GET_ALPHA(r)	SCALER_GET(r, 7, 0)
> +#define SCALER_DST_BLEND_ALPHA_SET_ALPHA(v)	SCALER_SET(v, 7, 0)
> +
> +/* SCALER_FILL_COLOR */
> +#define SCALER_FILL_COLOR_GET_ALPHA(r)		SCALER_GET(r, 31, 24)
> +#define SCALER_FILL_COLOR_SET_ALPHA(v)		SCALER_SET(v, 31, 24)
> +#define SCALER_FILL_COLOR_GET_FILL_COLOR0(r)	SCALER_GET(r, 23, 16)
> +#define SCALER_FILL_COLOR_SET_FILL_COLOR0(v)	SCALER_SET(v, 23, 16)
> +#define SCALER_FILL_COLOR_GET_FILL_COLOR1(r)	SCALER_GET(r, 15, 8)
> +#define SCALER_FILL_COLOR_SET_FILL_COLOR1(v)	SCALER_SET(v, 15, 8)
> +#define SCALER_FILL_COLOR_GET_FILL_COLOR2(r)	SCALER_GET(r, 7, 0)
> +#define SCALER_FILL_COLOR_SET_FILL_COLOR2(v)	SCALER_SET(v, 7, 0)
> +
> +/* SCALER_ADDR_Q_CONFIG */
> +#define SCALER_ADDR_Q_CONFIG_RST		(1 << 0)
> +
> +/* SCALER_SRC_ADDR_Q_STATUS */
> +#define SCALER_SRC_ADDR_Q_STATUS_Y_FULL		(1 << 23)
> +#define SCALER_SRC_ADDR_Q_STATUS_Y_EMPTY	(1 << 22)
> +#define SCALER_SRC_ADDR_Q_STATUS_GET_Y_WR_IDX(r)	SCALER_GET(r, 21, 16)
> +#define SCALER_SRC_ADDR_Q_STATUS_CB_FULL	(1 << 15)
> +#define SCALER_SRC_ADDR_Q_STATUS_CB_EMPTY	(1 << 14)
> +#define SCALER_SRC_ADDR_Q_STATUS_GET_CB_WR_IDX(r)	SCALER_GET(r, 13, 8)
> +#define SCALER_SRC_ADDR_Q_STATUS_CR_FULL	(1 << 7)
> +#define SCALER_SRC_ADDR_Q_STATUS_CR_EMPTY	(1 << 6)
> +#define SCALER_SRC_ADDR_Q_STATUS_GET_CR_WR_IDX(r)	SCALER_GET(r, 5, 0)
> +
> +/* SCALER_DST_ADDR_Q_STATUS */
> +#define SCALER_DST_ADDR_Q_STATUS_Y_FULL		(1 << 23)
> +#define SCALER_DST_ADDR_Q_STATUS_Y_EMPTY	(1 << 22)
> +#define SCALER_DST_ADDR_Q_STATUS_GET_Y_WR_IDX(r)	SCALER_GET(r, 21, 16)
> +#define SCALER_DST_ADDR_Q_STATUS_CB_FULL	(1 << 15)
> +#define SCALER_DST_ADDR_Q_STATUS_CB_EMPTY	(1 << 14)
> +#define SCALER_DST_ADDR_Q_STATUS_GET_CB_WR_IDX(r)	SCALER_GET(r, 13, 8)
> +#define SCALER_DST_ADDR_Q_STATUS_CR_FULL	(1 << 7)
> +#define SCALER_DST_ADDR_Q_STATUS_CR_EMPTY	(1 << 6)
> +#define SCALER_DST_ADDR_Q_STATUS_GET_CR_WR_IDX(r)	SCALER_GET(r, 5, 0)
> +
> +/* SCALER_CRC_COLOR00_10 */
> +#define SCALER_CRC_COLOR00_10_GET_00(r)		SCALER_GET(r, 31, 16)
> +#define SCALER_CRC_COLOR00_10_GET_10(r)		SCALER_GET(r, 15, 0)
> +
> +/* SCALER_CRC_COLOR20_30 */
> +#define SCALER_CRC_COLOR20_30_GET_20(r)		SCALER_GET(r, 31, 16)
> +#define SCALER_CRC_COLOR20_30_GET_30(r)		SCALER_GET(r, 15, 0)
> +
> +/* SCALER_CRC_COLOR01_11 */
> +#define SCALER_CRC_COLOR01_11_GET_01(r)		SCALER_GET(r, 31, 16)
> +#define SCALER_CRC_COLOR01_11_GET_11(r)		SCALER_GET(r, 15, 0)
> +
> +/* SCALER_CRC_COLOR21_31 */
> +#define SCALER_CRC_COLOR21_31_GET_21(r)		SCALER_GET(r, 31, 16)
> +#define SCALER_CRC_COLOR21_31_GET_31(r)		SCALER_GET(r, 15, 0)
> +
> +#endif /* EXYNOS_REGS_SCALER_H */
> 


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