Re: [PATCH] fbdev: claim Cyber2000 SPARC I/O aperture before ioremap

[Helge Deller <deller@gmx.de>]

On 6/11/26 05:52, Chintan Patel wrote:
> Claim the memory resource associated with the Cyber2000 SPARC MMIO
> aperture before accessing it.
> 
> This is part of the effort to request memory regions in fbdev drivers.
> 
> Signed-off-by: Chintan Patel <chintanlike@gmail.com>
> ---
>   drivers/video/fbdev/cyber2000fb.c | 7 +++++++
>   1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/video/fbdev/cyber2000fb.c b/drivers/video/fbdev/cyber2000fb.c
> index 2d12f8e96c7e..16ed56180ce2 100644
> --- a/drivers/video/fbdev/cyber2000fb.c
> +++ b/drivers/video/fbdev/cyber2000fb.c
> @@ -47,6 +47,7 @@
>   #include <linux/io.h>
>   #include <linux/i2c.h>
>   #include <linux/i2c-algo-bit.h>
> +#include <linux/ioport.h>
>   
>   #ifdef __arm__
>   #include <asm/mach-types.h>
> @@ -1620,9 +1621,14 @@ static int cyberpro_pci_enable_mmio(struct cfb_info *cfb)
>   	 */
>   	unsigned char __iomem *iop;
>   
> +	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 = ioremap(0x3000000, 0x5000);
>   	if (iop == NULL) {
>   		printk(KERN_ERR "iga5000: cannot map I/O\n");

while at it, use pci_err() here too then.

Helge