The patch titled
platinumfb: fix resource management
has been removed from the -mm tree. Its filename was
platinumfb-fix-resource-management.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: platinumfb: fix resource management
From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Current kernels have a non-working platinumfb due to some resource management
issues. This fixes it.
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Antonino Daplas <adaplas@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN drivers/video/platinumfb.c~platinumfb-fix-resource-management drivers/video/platinumfb.c
--- a/drivers/video/platinumfb.c~platinumfb-fix-resource-management
+++ a/drivers/video/platinumfb.c
@@ -17,6 +17,8 @@
* more details.
*/
+#undef DEBUG
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -535,33 +537,35 @@ static int __devinit platinumfb_probe(st
volatile __u8 *fbuffer;
int bank0, bank1, bank2, bank3, rc;
- printk(KERN_INFO "platinumfb: Found Apple Platinum video hardware\n");
+ dev_info(&odev->dev, "Found Apple Platinum video hardware\n");
info = framebuffer_alloc(sizeof(*pinfo), &odev->dev);
- if (info == NULL)
+ if (info == NULL) {
+ dev_err(&odev->dev, "Failed to allocate fbdev !\n");
return -ENOMEM;
+ }
pinfo = info->par;
if (of_address_to_resource(dp, 0, &pinfo->rsrc_reg) ||
of_address_to_resource(dp, 1, &pinfo->rsrc_fb)) {
- printk(KERN_ERR "platinumfb: Can't get resources\n");
- framebuffer_release(info);
- return -ENXIO;
- }
- if (!request_mem_region(pinfo->rsrc_reg.start,
- pinfo->rsrc_reg.start -
- pinfo->rsrc_reg.end + 1,
- "platinumfb registers")) {
+ dev_err(&odev->dev, "Can't get resources\n");
framebuffer_release(info);
return -ENXIO;
}
+ dev_dbg(&odev->dev, " registers : 0x%llx...0x%llx\n",
+ (unsigned long long)pinfo->rsrc_reg.start,
+ (unsigned long long)pinfo->rsrc_reg.end);
+ dev_dbg(&odev->dev, " framebuffer: 0x%llx...0x%llx\n",
+ (unsigned long long)pinfo->rsrc_fb.start,
+ (unsigned long long)pinfo->rsrc_fb.end);
+
+ /* Do not try to request register space, they overlap with the
+ * northbridge and that can fail. Only request framebuffer
+ */
if (!request_mem_region(pinfo->rsrc_fb.start,
- pinfo->rsrc_fb.start
- - pinfo->rsrc_fb.end + 1,
+ pinfo->rsrc_fb.end - pinfo->rsrc_fb.start + 1,
"platinumfb framebuffer")) {
- release_mem_region(pinfo->rsrc_reg.start,
- pinfo->rsrc_reg.end -
- pinfo->rsrc_reg.start + 1);
+ printk(KERN_ERR "platinumfb: Can't request framebuffer !\n");
framebuffer_release(info);
return -ENXIO;
}
@@ -600,7 +604,8 @@ static int __devinit platinumfb_probe(st
bank2 = fbuffer[0x200000] == 0x56;
bank3 = fbuffer[0x300000] == 0x78;
pinfo->total_vram = (bank0 + bank1 + bank2 + bank3) * 0x100000;
- printk(KERN_INFO "platinumfb: Total VRAM = %dMB (%d%d%d%d)\n", (int) (pinfo->total_vram / 1024 / 1024),
+ printk(KERN_INFO "platinumfb: Total VRAM = %dMB (%d%d%d%d)\n",
+ (unsigned int) (pinfo->total_vram / 1024 / 1024),
bank3, bank2, bank1, bank0);
/*
@@ -644,16 +649,15 @@ static int __devexit platinumfb_remove(s
unregister_framebuffer (info);
/* Unmap frame buffer and registers */
+ iounmap(pinfo->frame_buffer);
+ iounmap(pinfo->platinum_regs);
+ iounmap(pinfo->cmap_regs);
+
release_mem_region(pinfo->rsrc_fb.start,
pinfo->rsrc_fb.end -
pinfo->rsrc_fb.start + 1);
- release_mem_region(pinfo->rsrc_reg.start,
- pinfo->rsrc_reg.end -
- pinfo->rsrc_reg.start + 1);
- iounmap(pinfo->frame_buffer);
- iounmap(pinfo->platinum_regs);
+
release_mem_region(pinfo->cmap_regs_phys, 0x1000);
- iounmap(pinfo->cmap_regs);
framebuffer_release(info);
_
Patches currently in -mm which might be from benh@xxxxxxxxxxxxxxxxxxx are
git-cpufreq.patch
git-powerpc.patch
adbhid-produce-all-capslock-key-events.patch
git-kbuild.patch
git-libata-all.patch
convert-cpu_sibling_map-to-a-per_cpu-data-array-ppc64.patch
convert-cpu_sibling_map-to-a-per_cpu-data-array-ppc64-fix.patch
convert-cpu_sibling_map-to-a-per_cpu-data-array-ppc64-fix-2.patch
sparsemem-clean-up-spelling-error-in-comments.patch
sparsemem-record-when-a-section-has-a-valid-mem_map.patch
generic-virtual-memmap-support-for-sparsemem.patch
ppc64-sparsemem_vmemmap-support.patch
ppc64-sparsemem_vmemmap-support-vmemmap-ppc64-convert-vmm_-macros-to-a-real-function.patch
ppc64-sparsemem_vmemmap-support-convert-to-new-config-options.patch
during-vm-oom-condition-kill-all-threads-in-process-group.patch
remove-frv-usage-of-flush_tlb_pgtables.patch
softlockup-make-asm-irq_regsh-available-on-every-platform.patch
unexport-asm-shmparamh.patch
kconfig-make-instrumentation-support-non-experimental.patch
pcmcia-compactflash-driver-for-pa-semi-electra-boards.patch
pcmcia-compactflash-driver-for-pa-semi-electra-boards-fix.patch
report-the-per-irq-statistics-on-allarches.patch
add-linux-elfcore-compath.patch
x86_64-use-linux-elfcore-compath.patch
powerpc-use-linux-elfcore-compath.patch
fix-discrepancy-between-vdso-based-gettimeofday-and-sys_gettimeofday.patch
increase-at_vector_size-to-terminate-saved_auxv-properly.patch
delay-creation-of-khcvd-thread.patch
radeonfb-xpress-200m-rc410-support-patch.patch
intel-iommu-fix-for-iommu-early-crash-2.patch
add-scaled-time-to-taskstats-based-process-accounting.patch
add-missing-newlines-to-some-uses-of-dev_level-messages-fix.patch
powerpc-add-scaled-time-accounting.patch
powerpc-add-scaled-time-accounting-speedup.patch
define-global-bit-macro.patch
bitops-introduce-lock-ops.patch
powerpc-lock-bitops.patch
powerpc-lock-bitops-fix.patch
extended-crashkernel-command-line.patch
use-extended-crashkernel-command-line-on-ppc64.patch
add-documentation-for-extended-crashkernel-syntax.patch
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