diff options
Diffstat (limited to 'arch/arm/common')
| -rw-r--r-- | arch/arm/common/edma.c | 63 | ||||
| -rw-r--r-- | arch/arm/common/sa1111.c | 14 |
2 files changed, 67 insertions, 10 deletions
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index d86771abbf57..5662a872689b 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -26,6 +26,7 @@ #include <linux/io.h> #include <linux/slab.h> #include <linux/edma.h> +#include <linux/dma-mapping.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/of_dma.h> @@ -244,6 +245,8 @@ struct edma { /* list of channels with no even trigger; terminated by "-1" */ const s8 *noevent; + struct edma_soc_info *info; + /* The edma_inuse bit for each PaRAM slot is clear unless the * channel is in use ... by ARM or DSP, for QDMA, or whatever. */ @@ -295,7 +298,7 @@ static void map_dmach_queue(unsigned ctlr, unsigned ch_no, ~(0x7 << bit), queue_no << bit); } -static void __init assign_priority_to_queue(unsigned ctlr, int queue_no, +static void assign_priority_to_queue(unsigned ctlr, int queue_no, int priority) { int bit = queue_no * 4; @@ -314,7 +317,7 @@ static void __init assign_priority_to_queue(unsigned ctlr, int queue_no, * included in that particular EDMA variant (Eg : dm646x) * */ -static void __init map_dmach_param(unsigned ctlr) +static void map_dmach_param(unsigned ctlr) { int i; for (i = 0; i < EDMA_MAX_DMACH; i++) @@ -1623,6 +1626,11 @@ static int edma_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; struct device *dev = &pdev->dev; int ret; + struct platform_device_info edma_dev_info = { + .name = "edma-dma-engine", + .dma_mask = DMA_BIT_MASK(32), + .parent = &pdev->dev, + }; if (node) { /* Check if this is a second instance registered */ @@ -1792,15 +1800,66 @@ static int edma_probe(struct platform_device *pdev) edma_write_array2(j, EDMA_DRAE, i, 1, 0x0); edma_write_array(j, EDMA_QRAE, i, 0x0); } + edma_cc[j]->info = info[j]; arch_num_cc++; + + edma_dev_info.id = j; + platform_device_register_full(&edma_dev_info); + } + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int edma_pm_resume(struct device *dev) +{ + int i, j; + + for (j = 0; j < arch_num_cc; j++) { + struct edma *cc = edma_cc[j]; + + s8 (*queue_priority_mapping)[2]; + + queue_priority_mapping = cc->info->queue_priority_mapping; + + /* Event queue priority mapping */ + for (i = 0; queue_priority_mapping[i][0] != -1; i++) + assign_priority_to_queue(j, + queue_priority_mapping[i][0], + queue_priority_mapping[i][1]); + + /* + * Map the channel to param entry if channel mapping logic + * exist + */ + if (edma_read(j, EDMA_CCCFG) & CHMAP_EXIST) + map_dmach_param(j); + + for (i = 0; i < cc->num_channels; i++) { + if (test_bit(i, cc->edma_inuse)) { + /* ensure access through shadow region 0 */ + edma_or_array2(j, EDMA_DRAE, 0, i >> 5, + BIT(i & 0x1f)); + + setup_dma_interrupt(i, + cc->intr_data[i].callback, + cc->intr_data[i].data); + } + } } return 0; } +#endif + +static const struct dev_pm_ops edma_pm_ops = { + SET_LATE_SYSTEM_SLEEP_PM_OPS(NULL, edma_pm_resume) +}; static struct platform_driver edma_driver = { .driver = { .name = "edma", + .pm = &edma_pm_ops, .of_match_table = edma_of_ids, }, .probe = edma_probe, diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index e57d7e5bf96a..5cc779c8e9c6 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -282,8 +282,8 @@ static int sa1111_retrigger_lowirq(struct irq_data *d) } if (i == 8) - printk(KERN_ERR "Danger Will Robinson: failed to " - "re-trigger IRQ%d\n", d->irq); + pr_err("Danger Will Robinson: failed to re-trigger IRQ%d\n", + d->irq); return i == 8 ? -1 : 0; } @@ -384,8 +384,8 @@ static int sa1111_retrigger_highirq(struct irq_data *d) } if (i == 8) - printk(KERN_ERR "Danger Will Robinson: failed to " - "re-trigger IRQ%d\n", d->irq); + pr_err("Danger Will Robinson: failed to re-trigger IRQ%d\n", + d->irq); return i == 8 ? -1 : 0; } @@ -740,9 +740,8 @@ static int __sa1111_probe(struct device *me, struct resource *mem, int irq) goto err_unmap; } - printk(KERN_INFO "SA1111 Microprocessor Companion Chip: " - "silicon revision %lx, metal revision %lx\n", - (id & SKID_SIREV_MASK)>>4, (id & SKID_MTREV_MASK)); + pr_info("SA1111 Microprocessor Companion Chip: silicon revision %lx, metal revision %lx\n", + (id & SKID_SIREV_MASK) >> 4, id & SKID_MTREV_MASK); /* * We found it. Wake the chip up, and initialise. @@ -1057,7 +1056,6 @@ static struct platform_driver sa1111_device_driver = { .resume = sa1111_resume, .driver = { .name = "sa1111", - .owner = THIS_MODULE, }, }; |