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video: simplefb: Map framebuffer region on probe on ARM64

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The framebuffer buffer might not be mapped on some devices.

This is #ifdef'ed for ARM64 since mmu_map_region() is not defined for
any other architecture.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Acked-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
This commit is contained in:
Luca Weiss
2026-04-08 14:04:28 +02:00
committed by Tom Rini
parent df08b27590
commit 1c8b592611
1 changed files with 9 additions and 0 deletions
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9
drivers/video/simplefb.c
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@@ -9,6 +9,8 @@
#include <log.h>
#include <video.h>
#include <asm/global_data.h>
#include <asm/system.h>
#include <linux/sizes.h>
static int simple_video_probe(struct udevice *dev)
{
@@ -37,6 +39,13 @@ static int simple_video_probe(struct udevice *dev)
plat->base = base;
plat->size = size;
#ifdef CONFIG_ARM64
/* The framebuffer buffer might not be mapped on some devices */
if (plat->base % SZ_4K)
log_warning("Framebuffer base %lx is not 4k aligned!\n", plat->base);
mmu_map_region((phys_addr_t)plat->base, (phys_addr_t)ALIGN(plat->size, SZ_4K), false);
#endif
video_set_flush_dcache(dev, true);
debug("%s: Query resolution...\n", __func__);