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 <[email protected]>
---
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
