[PATCH 07/12] drm/format-helper: Rework RGB565-to-XRGB8888 conversion

[Thomas Zimmermann]

Update RGB565-to-XRGB8888 conversion to support struct iosys_map
and convert all users. Although these are single-plane color formats,
the new interface supports multi-plane formats for consistency with
drm_fb_blit().

Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
 drivers/gpu/drm/drm_format_helper.c | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_format_helper.c 
b/drivers/gpu/drm/drm_format_helper.c
index 4edab44336d8..5ef06f696657 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -430,12 +430,24 @@ static void drm_fb_rgb565_to_xrgb8888_line(void *dbuf, 
const void *sbuf, unsigne
        }
 }
 
-static void drm_fb_rgb565_to_xrgb8888_toio(void __iomem *dst, unsigned int 
dst_pitch,
-                                          const void *vaddr, const struct 
drm_framebuffer *fb,
-                                          const struct drm_rect *clip)
+static void drm_fb_rgb565_to_xrgb8888(struct iosys_map *dst, const unsigned 
int *dst_pitch,
+                                     const struct iosys_map *vmap,
+                                     const struct drm_framebuffer *fb,
+                                     const struct drm_rect *clip)
 {
-       drm_fb_xfrm_toio(dst, dst_pitch, 4, vaddr, fb, clip, false,
-                        drm_fb_rgb565_to_xrgb8888_line);
+       static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
+               0, 0, 0, 0
+       };
+
+       if (!dst_pitch)
+               dst_pitch = default_dst_pitch;
+
+       if (dst[0].is_iomem)
+               drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, 
vmap[0].vaddr, fb,
+                                clip, false, drm_fb_rgb565_to_xrgb8888_line);
+       else
+               drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb,
+                           clip, false, drm_fb_rgb565_to_xrgb8888_line);
 }
 
 static void drm_fb_rgb888_to_xrgb8888_line(void *dbuf, const void *sbuf, 
unsigned int pixels)
@@ -600,8 +612,7 @@ int drm_fb_blit(struct iosys_map *dst, const unsigned int 
*dst_pitch, uint32_t d
                                                       vmap[0].vaddr, fb, clip);
                        return 0;
                } else if (fb_format == DRM_FORMAT_RGB565) {
-                       drm_fb_rgb565_to_xrgb8888_toio(dst[0].vaddr_iomem, 
dst_pitch[0],
-                                                      vmap[0].vaddr, fb, clip);
+                       drm_fb_rgb565_to_xrgb8888(dst, dst_pitch, vmap, fb, 
clip);
                        return 0;
                }
        } else if (dst_format == DRM_FORMAT_XRGB2101010) {
-- 
2.37.1