From 61598093bbdd283a7edc367d900f223070ead8d2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:03 +0000
Subject: [PATCH] add ax88772C AX88772C_eeprom_tools
---
kernel/drivers/video/fbdev/au1200fb.c | 30 ++++++++++++------------------
1 files changed, 12 insertions(+), 18 deletions(-)
diff --git a/kernel/drivers/video/fbdev/au1200fb.c b/kernel/drivers/video/fbdev/au1200fb.c
index 3872cce..80f5411 100644
--- a/kernel/drivers/video/fbdev/au1200fb.c
+++ b/kernel/drivers/video/fbdev/au1200fb.c
@@ -147,6 +147,7 @@
struct au1200fb_device {
struct fb_info *fb_info; /* FB driver info record */
struct au1200fb_platdata *pd;
+ struct device *dev;
int plane;
unsigned char* fb_mem; /* FrameBuffer memory map */
@@ -1039,6 +1040,9 @@
u32 pixclock;
int screen_size, plane;
+ if (!var->pixclock)
+ return -EINVAL;
+
plane = fbdev->plane;
/* Make sure that the mode respect all LCD controller and
@@ -1232,10 +1236,8 @@
{
struct au1200fb_device *fbdev = info->par;
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */
-
- return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len);
+ return dma_mmap_attrs(fbdev->dev, vma, fbdev->fb_mem, fbdev->fb_phys,
+ fbdev->fb_len, 0);
}
static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
@@ -1484,7 +1486,7 @@
}
-static struct fb_ops au1200fb_fb_ops = {
+static const struct fb_ops au1200fb_fb_ops = {
.owner = THIS_MODULE,
.fb_check_var = au1200fb_fb_check_var,
.fb_set_par = au1200fb_fb_set_par,
@@ -1647,7 +1649,6 @@
struct au1200fb_device *fbdev;
struct au1200fb_platdata *pd;
struct fb_info *fbi = NULL;
- unsigned long page;
int bpp, plane, ret, irq;
print_info("" DRIVER_DESC "");
@@ -1685,6 +1686,7 @@
fbdev = fbi->par;
fbdev->fb_info = fbi;
fbdev->pd = pd;
+ fbdev->dev = &dev->dev;
fbdev->plane = plane;
@@ -1693,8 +1695,7 @@
fbdev->fb_mem = dmam_alloc_attrs(&dev->dev,
PAGE_ALIGN(fbdev->fb_len),
- &fbdev->fb_phys, GFP_KERNEL,
- DMA_ATTR_NON_CONSISTENT);
+ &fbdev->fb_phys, GFP_KERNEL, 0);
if (!fbdev->fb_mem) {
print_err("fail to allocate framebuffer (size: %dK))",
fbdev->fb_len / 1024);
@@ -1702,16 +1703,6 @@
goto failed;
}
- /*
- * Set page reserved so that mmap will work. This is necessary
- * since we'll be remapping normal memory.
- */
- for (page = (unsigned long)fbdev->fb_phys;
- page < PAGE_ALIGN((unsigned long)fbdev->fb_phys +
- fbdev->fb_len);
- page += PAGE_SIZE) {
- SetPageReserved(pfn_to_page(page >> PAGE_SHIFT)); /* LCD DMA is NOT coherent on Au1200 */
- }
print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
@@ -1741,6 +1732,9 @@
/* Now hook interrupt too */
irq = platform_get_irq(dev, 0);
+ if (irq < 0)
+ return irq;
+
ret = request_irq(irq, au1200fb_handle_irq,
IRQF_SHARED, "lcd", (void *)dev);
if (ret) {
--
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