Acquire ownership of the firmware scanout buffer by calling Linux'
aperture helpers. Remove the use of struct fb_info.apertures and do
not set FBINFO_MISC_FIRMWARE; both of which previously configured
buffer ownership.
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
drivers/video/fbdev/simplefb.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index e770b4a356b5..10d71879d340 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -12,6 +12,7 @@
* Copyright (C) 1996 Paul Mackerras
*/
+#include <linux/aperture.h>
#include <linux/errno.h>
#include <linux/fb.h>
#include <linux/io.h>
@@ -68,6 +69,8 @@ static int simplefb_setcolreg(u_int regno, u_int red, u_int
green, u_int blue,
struct simplefb_par {
u32 palette[PSEUDO_PALETTE_SIZE];
+ resource_size_t base;
+ resource_size_t size;
struct resource *mem;
#if defined CONFIG_OF && defined CONFIG_COMMON_CLK
bool clks_enabled;
@@ -472,16 +475,11 @@ static int simplefb_probe(struct platform_device *pdev)
info->var.blue = params.format->blue;
info->var.transp = params.format->transp;
- info->apertures = alloc_apertures(1);
- if (!info->apertures) {
- ret = -ENOMEM;
- goto error_fb_release;
- }
- info->apertures->ranges[0].base = info->fix.smem_start;
- info->apertures->ranges[0].size = info->fix.smem_len;
+ par->base = info->fix.smem_start;
+ par->size = info->fix.smem_len;
info->fbops = &simplefb_ops;
- info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE;
+ info->flags = FBINFO_DEFAULT;
info->screen_base = ioremap_wc(info->fix.smem_start,
info->fix.smem_len);
if (!info->screen_base) {
@@ -511,6 +509,11 @@ static int simplefb_probe(struct platform_device *pdev)
if (mem != res)
par->mem = mem; /* release in clean-up handler */
+ ret = devm_aperture_acquire_for_platform_device(pdev, par->base,
par->size);
+ if (ret) {
+ dev_err(&pdev->dev, "Unable to acquire aperture: %d\n", ret);
+ goto error_regulators;
+ }
ret = register_framebuffer(info);
if (ret < 0) {
dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret);
--
2.39.0
