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Re: [PATCH] fbdev: claim Cyber2000 SPARC I/O aperture before ioremap To: Chintan Patel Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux@armlinux.org.uk References: <20260611035243.16192-1-chintanlike@gmail.com> Content-Language: en-US From: Helge Deller Autocrypt: addr=deller@gmx.de; keydata= xsFNBF3Ia3MBEAD3nmWzMgQByYAWnb9cNqspnkb2GLVKzhoH2QD4eRpyDLA/3smlClbeKkWT HLnjgkbPFDmcmCz5V0Wv1mKYRClAHPCIBIJgyICqqUZo2qGmKstUx3pFAiztlXBANpRECgwJ r+8w6mkccOM9GhoPU0vMaD/UVJcJQzvrxVHO8EHS36aUkjKd6cOpdVbCt3qx8cEhCmaFEO6u CL+k5AZQoABbFQEBocZE1/lSYzaHkcHrjn4cQjc3CffXnUVYwlo8EYOtAHgMDC39s9a7S90L 69l6G73lYBD/Br5lnDPlG6dKfGFZZpQ1h8/x+Qz366Ojfq9MuuRJg7ZQpe6foiOtqwKym/zV dVvSdOOc5sHSpfwu5+BVAAyBd6hw4NddlAQUjHSRs3zJ9OfrEx2d3mIfXZ7+pMhZ7qX0Axlq Lq+B5cfLpzkPAgKn11tfXFxP+hcPHIts0bnDz4EEp+HraW+oRCH2m57Y9zhcJTOJaLw4YpTY GRUlF076vZ2Hz/xMEvIJddRGId7UXZgH9a32NDf+BUjWEZvFt1wFSW1r7zb7oGCwZMy2LI/G aHQv/N0NeFMd28z+deyxd0k1CGefHJuJcOJDVtcE1rGQ43aDhWSpXvXKDj42vFD2We6uIo9D 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the Cyber2000 SPARC MMIO > aperture before accessing it. >=20 > This is part of the effort to request memory regions in fbdev drivers. >=20 > Signed-off-by: Chintan Patel > --- > drivers/video/fbdev/cyber2000fb.c | 7 +++++++ > 1 file changed, 7 insertions(+) >=20 > diff --git a/drivers/video/fbdev/cyber2000fb.c b/drivers/video/fbdev/cyb= er2000fb.c > index 2d12f8e96c7e..16ed56180ce2 100644 > --- a/drivers/video/fbdev/cyber2000fb.c > +++ b/drivers/video/fbdev/cyber2000fb.c > @@ -47,6 +47,7 @@ > #include > #include > #include > +#include > =20 > #ifdef __arm__ > #include > @@ -1620,9 +1621,14 @@ static int cyberpro_pci_enable_mmio(struct cfb_in= fo *cfb) > */ > unsigned char __iomem *iop; > =20 > + if (!request_mem_region(0x3000000, 0x5000, "cyber2000fb iop")) { > + printk(KERN_ERR "iga5000: cannot reserve I/O area 0x3000000\n"); pci_err() or pr_err() please. > + return -EBUSY; > + } > iop =3D ioremap(0x3000000, 0x5000); > if (iop =3D=3D NULL) { > printk(KERN_ERR "iga5000: cannot map I/O\n"); while at it, use pci_err() here too then. Helge