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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:19:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 18:19:05 -0700
commit61464c8357c8f6b780e4c44f5c79471799c51ca7 (patch)
tree4509cf075403965528f380f2f825c46908fb7d4e /arch/arm/plat-omap/dma.c
parent47061eda2584b9e4516d1e3a9713406a3a559ac8 (diff)
parent9cf1c871526cf6bfec2a653e1e068ee72592542c (diff)
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc general cleanups from Olof Johansson: "This is a large branch that contains a handful of different cleanups: - Fixing up the I/O space remapping on PCI on ARM. This is a series from Rob Herring that restructures how all pci devices allocate I/O space, and it's part of the work to allow multiplatform kernels. - A number of cleanup series for OMAP, moving and removing some headers, sparse irq rework and in general preparation for multiplatform. - Final removal of all non-DT boards for Tegra, it is now device-tree-only! - Removal of a stale platform, nxp4008. It's an old mobile chipset that is no longer in use, and was very likely never really used with a mainline kernel. We have not been able to find anyone interested in keeping it around in the kernel. - Removal of the legacy dmaengine driver on tegra + A handful of other things that I haven't described above." Fix up some conflicts with the staging tree (and because nxp4008 was removed) * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits) ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6 ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus ARM: mmp: using for_each_set_bit to simplify the code ARM: tegra: harmony: fix ldo7 regulator-name ARM: OMAP2+: Make omap4-keypad.h local ARM: OMAP2+: Make l4_3xxx.h local ARM: OMAP2+: Make l4_2xxx.h local ARM: OMAP2+: Make l3_3xxx.h local ARM: OMAP2+: Make l3_2xxx.h local ARM: OMAP1: Move irda.h from plat to mach ARM: OMAP2+: Make hdq1w.h local ARM: OMAP2+: Make gpmc-smsc911x.h local ARM: OMAP2+: Make gpmc-smc91x.h local ARM: OMAP1: Move flash.h from plat to mach ARM: OMAP2+: Make debug-devices.h local ARM: OMAP1: Move board-voiceblue.h from plat to mach ARM: OMAP1: Move board-sx1.h from plat to mach ARM: OMAP2+: Make omap-wakeupgen.h local ARM: OMAP2+: Make omap-secure.h local ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local ...
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
-rw-r--r--arch/arm/plat-omap/dma.c54
1 files changed, 23 insertions, 31 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 7fe626761e5..c76ed8bff83 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -36,9 +36,8 @@
#include <linux/slab.h>
#include <linux/delay.h>
-#include <mach/hardware.h>
+#include <plat/cpu.h>
#include <plat/dma.h>
-
#include <plat/tc.h>
/*
@@ -969,8 +968,7 @@ void omap_stop_dma(int lch)
l = p->dma_read(CCR, lch);
}
if (i >= 100)
- printk(KERN_ERR "DMA drain did not complete on "
- "lch %d\n", lch);
+ pr_err("DMA drain did not complete on lch %d\n", lch);
/* Restore OCP_SYSCONFIG */
p->dma_write(sys_cf, OCP_SYSCONFIG, lch);
} else {
@@ -1154,8 +1152,7 @@ void omap_dma_link_lch(int lch_head, int lch_queue)
if ((dma_chan[lch_head].dev_id == -1) ||
(dma_chan[lch_queue].dev_id == -1)) {
- printk(KERN_ERR "omap_dma: trying to link "
- "non requested channels\n");
+ pr_err("omap_dma: trying to link non requested channels\n");
dump_stack();
}
@@ -1181,15 +1178,13 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue)
if (dma_chan[lch_head].next_lch != lch_queue ||
dma_chan[lch_head].next_lch == -1) {
- printk(KERN_ERR "omap_dma: trying to unlink "
- "non linked channels\n");
+ pr_err("omap_dma: trying to unlink non linked channels\n");
dump_stack();
}
if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) ||
(dma_chan[lch_queue].flags & OMAP_DMA_ACTIVE)) {
- printk(KERN_ERR "omap_dma: You need to stop the DMA channels "
- "before unlinking\n");
+ pr_err("omap_dma: You need to stop the DMA channels before unlinking\n");
dump_stack();
}
@@ -1831,16 +1826,15 @@ static int omap1_dma_handle_ch(int ch)
if ((csr & 0x3f) == 0)
return 0;
if (unlikely(dma_chan[ch].dev_id == -1)) {
- printk(KERN_WARNING "Spurious interrupt from DMA channel "
- "%d (CSR %04x)\n", ch, csr);
+ pr_warn("Spurious interrupt from DMA channel %d (CSR %04x)\n",
+ ch, csr);
return 0;
}
if (unlikely(csr & OMAP1_DMA_TOUT_IRQ))
- printk(KERN_WARNING "DMA timeout with device %d\n",
- dma_chan[ch].dev_id);
+ pr_warn("DMA timeout with device %d\n", dma_chan[ch].dev_id);
if (unlikely(csr & OMAP_DMA_DROP_IRQ))
- printk(KERN_WARNING "DMA synchronization event drop occurred "
- "with device %d\n", dma_chan[ch].dev_id);
+ pr_warn("DMA synchronization event drop occurred with device %d\n",
+ dma_chan[ch].dev_id);
if (likely(csr & OMAP_DMA_BLOCK_IRQ))
dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE;
if (likely(dma_chan[ch].callback != NULL))
@@ -1880,21 +1874,19 @@ static int omap2_dma_handle_ch(int ch)
if (!status) {
if (printk_ratelimit())
- printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n",
- ch);
+ pr_warn("Spurious DMA IRQ for lch %d\n", ch);
p->dma_write(1 << ch, IRQSTATUS_L0, ch);
return 0;
}
if (unlikely(dma_chan[ch].dev_id == -1)) {
if (printk_ratelimit())
- printk(KERN_WARNING "IRQ %04x for non-allocated DMA"
- "channel %d\n", status, ch);
+ pr_warn("IRQ %04x for non-allocated DMA channel %d\n",
+ status, ch);
return 0;
}
if (unlikely(status & OMAP_DMA_DROP_IRQ))
- printk(KERN_INFO
- "DMA synchronization event drop occurred with device "
- "%d\n", dma_chan[ch].dev_id);
+ pr_info("DMA synchronization event drop occurred with device %d\n",
+ dma_chan[ch].dev_id);
if (unlikely(status & OMAP2_DMA_TRANS_ERR_IRQ)) {
printk(KERN_INFO "DMA transaction error with device %d\n",
dma_chan[ch].dev_id);
@@ -2014,8 +2006,9 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
p = pdev->dev.platform_data;
if (!p) {
- dev_err(&pdev->dev, "%s: System DMA initialized without"
- "platform data\n", __func__);
+ dev_err(&pdev->dev,
+ "%s: System DMA initialized without platform data\n",
+ __func__);
return -EINVAL;
}
@@ -2090,8 +2083,8 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
}
ret = setup_irq(dma_irq, &omap24xx_dma_irq);
if (ret) {
- dev_err(&pdev->dev, "set_up failed for IRQ %d"
- "for DMA (error %d)\n", dma_irq, ret);
+ dev_err(&pdev->dev, "set_up failed for IRQ %d for DMA (error %d)\n",
+ dma_irq, ret);
goto exit_dma_lch_fail;
}
}
@@ -2099,8 +2092,7 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
/* reserve dma channels 0 and 1 in high security devices */
if (cpu_is_omap34xx() &&
(omap_type() != OMAP2_DEVICE_TYPE_GP)) {
- printk(KERN_INFO "Reserving DMA channels 0 and 1 for "
- "HS ROM code\n");
+ pr_info("Reserving DMA channels 0 and 1 for HS ROM code\n");
dma_chan[0].dev_id = 0;
dma_chan[1].dev_id = 1;
}
@@ -2108,8 +2100,8 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
return 0;
exit_dma_irq_fail:
- dev_err(&pdev->dev, "unable to request IRQ %d"
- "for DMA (error %d)\n", dma_irq, ret);
+ dev_err(&pdev->dev, "unable to request IRQ %d for DMA (error %d)\n",
+ dma_irq, ret);
for (irq_rel = 0; irq_rel < ch; irq_rel++) {
dma_irq = platform_get_irq(pdev, irq_rel);
free_irq(dma_irq, (void *)(irq_rel + 1));