[PATCH v2 3/5] drm/tinydrm: Use struct drm_rect

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This prepares for the switch to drm_atomic_helper_dirtyfb() in the next
patch. The damage helper returns a drm_rect so switch to that everywhere
including using a pointer in the dirty functions.

This is a non-functional change except for the debug print which looks a
bit different.

Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Acked-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
 .../gpu/drm/tinydrm/core/tinydrm-helpers.c    | 19 ++++----
 drivers/gpu/drm/tinydrm/ili9225.c             | 43 ++++++++++---------
 drivers/gpu/drm/tinydrm/mipi-dbi.c            | 21 ++++-----
 drivers/gpu/drm/tinydrm/repaper.c             |  3 +-
 drivers/gpu/drm/tinydrm/st7586.c              | 27 ++++++------
 include/drm/tinydrm/mipi-dbi.h                |  3 +-
 include/drm/tinydrm/tinydrm-helpers.h         | 11 ++---
 7 files changed, 67 insertions(+), 60 deletions(-)

diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
index bf6bfbc5d412..d0ece6ad4a1c 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
@@ -18,6 +18,7 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_print.h>
+#include <drm/drm_rect.h>
 #include <drm/tinydrm/tinydrm.h>
 #include <drm/tinydrm/tinydrm-helpers.h>
 #include <uapi/drm/drm.h>
@@ -41,7 +42,7 @@ MODULE_PARM_DESC(spi_max, "Set a lower SPI max transfer size");
  * Returns:
  * true if it's a full clip, false otherwise
  */
-bool tinydrm_merge_clips(struct drm_clip_rect *dst,
+bool tinydrm_merge_clips(struct drm_rect *dst,
 			 struct drm_clip_rect *src, unsigned int num_clips,
 			 unsigned int flags, u32 max_width, u32 max_height)
 {
@@ -63,10 +64,10 @@ bool tinydrm_merge_clips(struct drm_clip_rect *dst,
 	for (i = 0; i < num_clips; i++) {
 		if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY)
 			i++;
-		dst->x1 = min(dst->x1, src[i].x1);
-		dst->x2 = max(dst->x2, src[i].x2);
-		dst->y1 = min(dst->y1, src[i].y1);
-		dst->y2 = max(dst->y2, src[i].y2);
+		dst->x1 = min_t(int, dst->x1, src[i].x1);
+		dst->x2 = max_t(int, dst->x2, src[i].x2);
+		dst->y1 = min_t(int, dst->y1, src[i].y1);
+		dst->y2 = max_t(int, dst->y2, src[i].y2);
 	}
 
 	if (dst->x2 > max_width || dst->y2 > max_height ||
@@ -122,7 +123,7 @@ EXPORT_SYMBOL(tinydrm_fb_dirty);
  * @clip: Clip rectangle area to copy
  */
 void tinydrm_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
-		    struct drm_clip_rect *clip)
+		    struct drm_rect *clip)
 {
 	unsigned int cpp = drm_format_plane_cpp(fb->format->format, 0);
 	unsigned int pitch = fb->pitches[0];
@@ -146,7 +147,7 @@ EXPORT_SYMBOL(tinydrm_memcpy);
  * @clip: Clip rectangle area to copy
  */
 void tinydrm_swab16(u16 *dst, void *vaddr, struct drm_framebuffer *fb,
-		    struct drm_clip_rect *clip)
+		    struct drm_rect *clip)
 {
 	size_t len = (clip->x2 - clip->x1) * sizeof(u16);
 	unsigned int x, y;
@@ -186,7 +187,7 @@ EXPORT_SYMBOL(tinydrm_swab16);
  */
 void tinydrm_xrgb8888_to_rgb565(u16 *dst, void *vaddr,
 				struct drm_framebuffer *fb,
-				struct drm_clip_rect *clip, bool swap)
+				struct drm_rect *clip, bool swap)
 {
 	size_t len = (clip->x2 - clip->x1) * sizeof(u32);
 	unsigned int x, y;
@@ -235,7 +236,7 @@ EXPORT_SYMBOL(tinydrm_xrgb8888_to_rgb565);
  * ITU BT.601 is used for the RGB -> luma (brightness) conversion.
  */
 void tinydrm_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb,
-			       struct drm_clip_rect *clip)
+			       struct drm_rect *clip)
 {
 	unsigned int len = (clip->x2 - clip->x1) * sizeof(u32);
 	unsigned int x, y;
diff --git a/drivers/gpu/drm/tinydrm/ili9225.c b/drivers/gpu/drm/tinydrm/ili9225.c
index b0ad58b97227..ad644069089f 100644
--- a/drivers/gpu/drm/tinydrm/ili9225.c
+++ b/drivers/gpu/drm/tinydrm/ili9225.c
@@ -25,6 +25,7 @@
 #include <drm/drm_fourcc.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_rect.h>
 #include <drm/tinydrm/mipi-dbi.h>
 #include <drm/tinydrm/tinydrm-helpers.h>
 
@@ -84,7 +85,8 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
 	struct tinydrm_device *tdev = fb->dev->dev_private;
 	struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
 	bool swap = mipi->swap_bytes;
-	struct drm_clip_rect clip;
+	struct drm_rect clip;
+	struct drm_rect *rect = &clip;
 	u16 x_start, y_start;
 	u16 x1, x2, y1, y2;
 	int ret = 0;
@@ -97,13 +99,12 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
 	full = tinydrm_merge_clips(&clip, clips, num_clips, flags,
 				   fb->width, fb->height);
 
-	DRM_DEBUG("Flushing [FB:%d] x1=%u, x2=%u, y1=%u, y2=%u\n", fb->base.id,
-		  clip.x1, clip.x2, clip.y1, clip.y2);
+	DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
 
 	if (!mipi->dc || !full || swap ||
 	    fb->format->format == DRM_FORMAT_XRGB8888) {
 		tr = mipi->tx_buf;
-		ret = mipi_dbi_buf_copy(mipi->tx_buf, fb, &clip, swap);
+		ret = mipi_dbi_buf_copy(mipi->tx_buf, fb, rect, swap);
 		if (ret)
 			return ret;
 	} else {
@@ -112,34 +113,34 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
 
 	switch (mipi->rotation) {
 	default:
-		x1 = clip.x1;
-		x2 = clip.x2 - 1;
-		y1 = clip.y1;
-		y2 = clip.y2 - 1;
+		x1 = rect->x1;
+		x2 = rect->x2 - 1;
+		y1 = rect->y1;
+		y2 = rect->y2 - 1;
 		x_start = x1;
 		y_start = y1;
 		break;
 	case 90:
-		x1 = clip.y1;
-		x2 = clip.y2 - 1;
-		y1 = fb->width - clip.x2;
-		y2 = fb->width - clip.x1 - 1;
+		x1 = rect->y1;
+		x2 = rect->y2 - 1;
+		y1 = fb->width - rect->x2;
+		y2 = fb->width - rect->x1 - 1;
 		x_start = x1;
 		y_start = y2;
 		break;
 	case 180:
-		x1 = fb->width - clip.x2;
-		x2 = fb->width - clip.x1 - 1;
-		y1 = fb->height - clip.y2;
-		y2 = fb->height - clip.y1 - 1;
+		x1 = fb->width - rect->x2;
+		x2 = fb->width - rect->x1 - 1;
+		y1 = fb->height - rect->y2;
+		y2 = fb->height - rect->y1 - 1;
 		x_start = x2;
 		y_start = y2;
 		break;
 	case 270:
-		x1 = fb->height - clip.y2;
-		x2 = fb->height - clip.y1 - 1;
-		y1 = clip.x1;
-		y2 = clip.x2 - 1;
+		x1 = fb->height - rect->y2;
+		x2 = fb->height - rect->y1 - 1;
+		y1 = rect->x1;
+		y2 = rect->x2 - 1;
 		x_start = x2;
 		y_start = y1;
 		break;
@@ -154,7 +155,7 @@ static int ili9225_fb_dirty(struct drm_framebuffer *fb,
 	ili9225_command(mipi, ILI9225_RAM_ADDRESS_SET_2, y_start);
 
 	ret = mipi_dbi_command_buf(mipi, ILI9225_WRITE_DATA_TO_GRAM, tr,
-				(clip.x2 - clip.x1) * (clip.y2 - clip.y1) * 2);
+				   (rect->x2 - rect->x1) * (rect->y2 - rect->y1) * 2);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/tinydrm/mipi-dbi.c b/drivers/gpu/drm/tinydrm/mipi-dbi.c
index 10294e1283dd..1e7e8cfc99f0 100644
--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -22,6 +22,7 @@
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_rect.h>
 #include <drm/tinydrm/mipi-dbi.h>
 #include <drm/tinydrm/tinydrm-helpers.h>
 #include <uapi/drm/drm.h>
@@ -172,7 +173,7 @@ EXPORT_SYMBOL(mipi_dbi_command_buf);
  * Zero on success, negative error code on failure.
  */
 int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
-		      struct drm_clip_rect *clip, bool swap)
+		      struct drm_rect *clip, bool swap)
 {
 	struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
 	struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
@@ -221,7 +222,8 @@ static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
 	struct tinydrm_device *tdev = fb->dev->dev_private;
 	struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
 	bool swap = mipi->swap_bytes;
-	struct drm_clip_rect clip;
+	struct drm_rect clip;
+	struct drm_rect *rect = &clip;
 	int ret = 0;
 	bool full;
 	void *tr;
@@ -232,13 +234,12 @@ static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
 	full = tinydrm_merge_clips(&clip, clips, num_clips, flags,
 				   fb->width, fb->height);
 
-	DRM_DEBUG("Flushing [FB:%d] x1=%u, x2=%u, y1=%u, y2=%u\n", fb->base.id,
-		  clip.x1, clip.x2, clip.y1, clip.y2);
+	DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
 
 	if (!mipi->dc || !full || swap ||
 	    fb->format->format == DRM_FORMAT_XRGB8888) {
 		tr = mipi->tx_buf;
-		ret = mipi_dbi_buf_copy(mipi->tx_buf, fb, &clip, swap);
+		ret = mipi_dbi_buf_copy(mipi->tx_buf, fb, rect, swap);
 		if (ret)
 			return ret;
 	} else {
@@ -246,14 +247,14 @@ static int mipi_dbi_fb_dirty(struct drm_framebuffer *fb,
 	}
 
 	mipi_dbi_command(mipi, MIPI_DCS_SET_COLUMN_ADDRESS,
-			 (clip.x1 >> 8) & 0xFF, clip.x1 & 0xFF,
-			 ((clip.x2 - 1) >> 8) & 0xFF, (clip.x2 - 1) & 0xFF);
+			 (rect->x1 >> 8) & 0xff, rect->x1 & 0xff,
+			 ((rect->x2 - 1) >> 8) & 0xff, (rect->x2 - 1) & 0xff);
 	mipi_dbi_command(mipi, MIPI_DCS_SET_PAGE_ADDRESS,
-			 (clip.y1 >> 8) & 0xFF, clip.y1 & 0xFF,
-			 ((clip.y2 - 1) >> 8) & 0xFF, (clip.y2 - 1) & 0xFF);
+			 (rect->y1 >> 8) & 0xff, rect->y1 & 0xff,
+			 ((rect->y2 - 1) >> 8) & 0xff, (rect->y2 - 1) & 0xff);
 
 	ret = mipi_dbi_command_buf(mipi, MIPI_DCS_WRITE_MEMORY_START, tr,
-				(clip.x2 - clip.x1) * (clip.y2 - clip.y1) * 2);
+				   (rect->x2 - rect->x1) * (rect->y2 - rect->y1) * 2);
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/tinydrm/repaper.c b/drivers/gpu/drm/tinydrm/repaper.c
index b2a8f894946a..238515de449e 100644
--- a/drivers/gpu/drm/tinydrm/repaper.c
+++ b/drivers/gpu/drm/tinydrm/repaper.c
@@ -30,6 +30,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_rect.h>
 #include <drm/tinydrm/tinydrm.h>
 #include <drm/tinydrm/tinydrm-helpers.h>
 
@@ -532,7 +533,7 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb,
 	struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
 	struct tinydrm_device *tdev = fb->dev->dev_private;
 	struct repaper_epd *epd = epd_from_tinydrm(tdev);
-	struct drm_clip_rect clip;
+	struct drm_rect clip;
 	u8 *buf = NULL;
 	int ret = 0;
 
diff --git a/drivers/gpu/drm/tinydrm/st7586.c b/drivers/gpu/drm/tinydrm/st7586.c
index bf518167760a..a52bc3b02606 100644
--- a/drivers/gpu/drm/tinydrm/st7586.c
+++ b/drivers/gpu/drm/tinydrm/st7586.c
@@ -21,6 +21,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_rect.h>
 #include <drm/tinydrm/mipi-dbi.h>
 #include <drm/tinydrm/tinydrm-helpers.h>
 
@@ -62,7 +63,7 @@ static const u8 st7586_lookup[] = { 0x7, 0x4, 0x2, 0x0 };
 
 static void st7586_xrgb8888_to_gray332(u8 *dst, void *vaddr,
 				       struct drm_framebuffer *fb,
-				       struct drm_clip_rect *clip)
+				       struct drm_rect *clip)
 {
 	size_t len = (clip->x2 - clip->x1) * (clip->y2 - clip->y1);
 	unsigned int x, y;
@@ -88,7 +89,7 @@ static void st7586_xrgb8888_to_gray332(u8 *dst, void *vaddr,
 }
 
 static int st7586_buf_copy(void *dst, struct drm_framebuffer *fb,
-			   struct drm_clip_rect *clip)
+			   struct drm_rect *clip)
 {
 	struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
 	struct dma_buf_attachment *import_attach = cma_obj->base.import_attach;
@@ -118,7 +119,8 @@ static int st7586_fb_dirty(struct drm_framebuffer *fb,
 {
 	struct tinydrm_device *tdev = fb->dev->dev_private;
 	struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
-	struct drm_clip_rect clip;
+	struct drm_rect clip;
+	struct drm_rect *rect = &clip;
 	int start, end;
 	int ret = 0;
 
@@ -129,30 +131,29 @@ static int st7586_fb_dirty(struct drm_framebuffer *fb,
 			    fb->height);
 
 	/* 3 pixels per byte, so grow clip to nearest multiple of 3 */
-	clip.x1 = rounddown(clip.x1, 3);
-	clip.x2 = roundup(clip.x2, 3);
+	rect->x1 = rounddown(rect->x1, 3);
+	rect->x2 = roundup(rect->x2, 3);
 
-	DRM_DEBUG("Flushing [FB:%d] x1=%u, x2=%u, y1=%u, y2=%u\n", fb->base.id,
-		  clip.x1, clip.x2, clip.y1, clip.y2);
+	DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
 
-	ret = st7586_buf_copy(mipi->tx_buf, fb, &clip);
+	ret = st7586_buf_copy(mipi->tx_buf, fb, rect);
 	if (ret)
 		return ret;
 
 	/* Pixels are packed 3 per byte */
-	start = clip.x1 / 3;
-	end = clip.x2 / 3;
+	start = rect->x1 / 3;
+	end = rect->x2 / 3;
 
 	mipi_dbi_command(mipi, MIPI_DCS_SET_COLUMN_ADDRESS,
 			 (start >> 8) & 0xFF, start & 0xFF,
 			 (end >> 8) & 0xFF, (end - 1) & 0xFF);
 	mipi_dbi_command(mipi, MIPI_DCS_SET_PAGE_ADDRESS,
-			 (clip.y1 >> 8) & 0xFF, clip.y1 & 0xFF,
-			 (clip.y2 >> 8) & 0xFF, (clip.y2 - 1) & 0xFF);
+			 (rect->y1 >> 8) & 0xFF, rect->y1 & 0xFF,
+			 (rect->y2 >> 8) & 0xFF, (rect->y2 - 1) & 0xFF);
 
 	ret = mipi_dbi_command_buf(mipi, MIPI_DCS_WRITE_MEMORY_START,
 				   (u8 *)mipi->tx_buf,
-				   (end - start) * (clip.y2 - clip.y1));
+				   (end - start) * (rect->y2 - rect->y1));
 
 	return ret;
 }
diff --git a/include/drm/tinydrm/mipi-dbi.h b/include/drm/tinydrm/mipi-dbi.h
index b8ba58861986..b52f32897f23 100644
--- a/include/drm/tinydrm/mipi-dbi.h
+++ b/include/drm/tinydrm/mipi-dbi.h
@@ -14,6 +14,7 @@
 
 #include <drm/tinydrm/tinydrm.h>
 
+struct drm_rect;
 struct spi_device;
 struct gpio_desc;
 struct regulator;
@@ -80,7 +81,7 @@ u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len);
 int mipi_dbi_command_read(struct mipi_dbi *mipi, u8 cmd, u8 *val);
 int mipi_dbi_command_buf(struct mipi_dbi *mipi, u8 cmd, u8 *data, size_t len);
 int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
-		      struct drm_clip_rect *clip, bool swap);
+		      struct drm_rect *clip, bool swap);
 /**
  * mipi_dbi_command - MIPI DCS command with optional parameter(s)
  * @mipi: MIPI structure
diff --git a/include/drm/tinydrm/tinydrm-helpers.h b/include/drm/tinydrm/tinydrm-helpers.h
index 5b96f0b12c8c..8edb75df4e31 100644
--- a/include/drm/tinydrm/tinydrm-helpers.h
+++ b/include/drm/tinydrm/tinydrm-helpers.h
@@ -13,6 +13,7 @@
 struct backlight_device;
 struct tinydrm_device;
 struct drm_clip_rect;
+struct drm_rect;
 struct spi_transfer;
 struct spi_message;
 struct spi_device;
@@ -33,7 +34,7 @@ static inline bool tinydrm_machine_little_endian(void)
 #endif
 }
 
-bool tinydrm_merge_clips(struct drm_clip_rect *dst,
+bool tinydrm_merge_clips(struct drm_rect *dst,
 			 struct drm_clip_rect *src, unsigned int num_clips,
 			 unsigned int flags, u32 max_width, u32 max_height);
 int tinydrm_fb_dirty(struct drm_framebuffer *fb,
@@ -42,14 +43,14 @@ int tinydrm_fb_dirty(struct drm_framebuffer *fb,
 		     struct drm_clip_rect *clips,
 		     unsigned int num_clips);
 void tinydrm_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
-		    struct drm_clip_rect *clip);
+		    struct drm_rect *clip);
 void tinydrm_swab16(u16 *dst, void *vaddr, struct drm_framebuffer *fb,
-		    struct drm_clip_rect *clip);
+		    struct drm_rect *clip);
 void tinydrm_xrgb8888_to_rgb565(u16 *dst, void *vaddr,
 				struct drm_framebuffer *fb,
-				struct drm_clip_rect *clip, bool swap);
+				struct drm_rect *clip, bool swap);
 void tinydrm_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb,
-			       struct drm_clip_rect *clip);
+			       struct drm_rect *clip);
 
 size_t tinydrm_spi_max_transfer_size(struct spi_device *spi, size_t max_len);
 bool tinydrm_spi_bpw_supported(struct spi_device *spi, u8 bpw);
-- 
2.20.1

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