Re: [PATCH v4 03/13] drm/armada: Use regular fbdev I/O helpers

2023-05-29 Thread Sam Ravnborg
On Wed, May 24, 2023 at 11:21:40AM +0200, Thomas Zimmermann wrote:
> Use the regular fbdev helpers for framebuffer I/O instead of DRM's
> helpers. Armada does not use damage handling, so DRM's fbdev helpers
> are mere wrappers around the fbdev code.
> 
> By using fbdev helpers directly within each DRM fbdev emulation,
> we can eventually remove DRM's wrapper functions entirely.
> 
> v4:
>   * use initializer macros for struct fb_ops
> v2:
>   * use FB_IO_HELPERS option
> 
> Signed-off-by: Thomas Zimmermann 
> Cc: Russell King 
Acked-by: Sam Ravnborg 


[PATCH v4 03/13] drm/armada: Use regular fbdev I/O helpers

2023-05-24 Thread Thomas Zimmermann
Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Armada does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_IO_HELPERS option

Signed-off-by: Thomas Zimmermann 
Cc: Russell King 
---
 drivers/gpu/drm/armada/Kconfig| 1 +
 drivers/gpu/drm/armada/armada_fbdev.c | 7 ++-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/armada/Kconfig b/drivers/gpu/drm/armada/Kconfig
index f5c66d89ba99..5afade25e217 100644
--- a/drivers/gpu/drm/armada/Kconfig
+++ b/drivers/gpu/drm/armada/Kconfig
@@ -3,6 +3,7 @@ config DRM_ARMADA
tristate "DRM support for Marvell Armada SoCs"
depends on DRM && HAVE_CLK && ARM && MMU
select DRM_KMS_HELPER
+   select FB_IO_HELPERS if DRM_FBDEV_EMULATION
help
  Support the "LCD" controllers found on the Marvell Armada 510
  devices.  There are two controllers on the device, each controller
diff --git a/drivers/gpu/drm/armada/armada_fbdev.c 
b/drivers/gpu/drm/armada/armada_fbdev.c
index 0a5fd1aa86eb..3943e89cc06c 100644
--- a/drivers/gpu/drm/armada/armada_fbdev.c
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@@ -5,6 +5,7 @@
  */
 
 #include 
+#include 
 #include 
 #include 
 
@@ -33,12 +34,8 @@ static void armada_fbdev_fb_destroy(struct fb_info *info)
 
 static const struct fb_ops armada_fb_ops = {
.owner  = THIS_MODULE,
+   FB_DEFAULT_IO_OPS,
DRM_FB_HELPER_DEFAULT_OPS,
-   .fb_read= drm_fb_helper_cfb_read,
-   .fb_write   = drm_fb_helper_cfb_write,
-   .fb_fillrect= drm_fb_helper_cfb_fillrect,
-   .fb_copyarea= drm_fb_helper_cfb_copyarea,
-   .fb_imageblit   = drm_fb_helper_cfb_imageblit,
.fb_destroy = armada_fbdev_fb_destroy,
 };
 
-- 
2.40.1