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gxt4500: Use arch_phys_wc_* for framebuffer

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Add arch_phys_wc_* calls to allow write-combining using MTRR.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Ondrej Zary 2015-10-01 23:22:54 +02:00 committed by Tomi Valkeinen
parent 3c083aa9d2
commit 38fc4d45fa
1 changed files with 5 additions and 1 deletions
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6
drivers/video/fbdev/gxt4500.c
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@ -142,7 +142,7 @@ static const unsigned char watfmt[] = {
struct gxt4500_par {
void __iomem *regs;
int wc_cookie;
int pixfmt; /* pixel format, see DFA_PIX_* values */
/* PLL parameters */
@ -671,6 +671,9 @@ static int gxt4500_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_set_drvdata(pdev, info);
par->wc_cookie = arch_phys_wc_add(info->fix.smem_start,
info->fix.smem_len);
#ifdef __BIG_ENDIAN
/* Set byte-swapping for DFA aperture for all pixel sizes */
pci_write_config_dword(pdev, CFG_ENDIAN0, 0x333300);
@ -735,6 +738,7 @@ static void gxt4500_remove(struct pci_dev *pdev)
return;
par = info->par;
unregister_framebuffer(info);
arch_phys_wc_del(par->wc_cookie);
fb_dealloc_cmap(&info->cmap);
iounmap(par->regs);
iounmap(info->screen_base);