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ARM: arm-soc: late cleanups

Browse source 
These are cleanups and smaller changes that either depend on earlier
 feature branches or came in late during the development cycle.
 We normally try to get all cleanups early, so these are the exceptions:
 
 - A follow-up on the clocksource reworks, hopefully the last time
   we need to merge clocksource subsystem changes through arm-soc.
   A first set of patches was part of the original 3.10 arm-soc cleanup
   series because of interdependencies with timer drivers now moved out
   of arch/arm.
 
 - Migrating the SPEAr13xx platform away from using auxdata for DMA
   channel descriptions towards using information in device tree,
   based on the earlier SPEAr multiplatform series
 
 - A few follow-ups on the Atmel SAMA5 support and other changes
   for Atmel at91 based on the larger at91 reworks.
 
 - Moving the armada irqchip implementation to drivers/irqchip
 
 - Several OMAP cleanups following up on the larger series already
   merged in 3.10.
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Merge tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late cleanups from Arnd Bergmann:
 "These are cleanups and smaller changes that either depend on earlier
  feature branches or came in late during the development cycle.  We
  normally try to get all cleanups early, so these are the exceptions:

   - A follow-up on the clocksource reworks, hopefully the last time we
     need to merge clocksource subsystem changes through arm-soc.

     A first set of patches was part of the original 3.10 arm-soc
     cleanup series because of interdependencies with timer drivers now
     moved out of arch/arm.

   - Migrating the SPEAr13xx platform away from using auxdata for DMA
     channel descriptions towards using information in device tree,
     based on the earlier SPEAr multiplatform series

   - A few follow-ups on the Atmel SAMA5 support and other changes for
     Atmel at91 based on the larger at91 reworks.

   - Moving the armada irqchip implementation to drivers/irqchip

   - Several OMAP cleanups following up on the larger series already
     merged in 3.10."

* tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
  ARM: OMAP4: change the device names in usb_bind_phy
  ARM: OMAP2+: Fix mismerge for timer.c between ff931c82 and da4a686a
  ARM: SPEAr: conditionalize SMP code
  ARM: arch_timer: Silence debug preempt warnings
  ARM: OMAP: remove unused variable
  serial: amba-pl011: fix !CONFIG_DMA_ENGINE case
  ata: arasan: remove the need for platform_data
  ARM: at91/sama5d34ek.dts: remove not needed compatibility string
  ARM: at91: dts: add MCI DMA support
  ARM: at91: dts: add i2c dma support
  ARM: at91: dts: set #dma-cells to the correct value
  ARM: at91: suspend both memory controllers on at91sam9263
  irqchip: armada-370-xp: slightly cleanup irq controller driver
  irqchip: armada-370-xp: move IRQ handler to avoid forward declaration
  irqchip: move IRQ driver for Armada 370/XP
  ARM: mvebu: move L2 cache initialization in init_early()
  devtree: add binding documentation for sp804
  ARM: integrator-cp: convert use CLKSRC_OF for timer init
  ARM: versatile: use OF init for sp804 timer
  ARM: versatile: add versatile dtbs to dtbs target
  ...
This commit is contained in:
Linus Torvalds 2013-05-07 11:22:14 -07:00
commit 1bf25e78af
79 changed files with 777 additions and 1041 deletions
Download patch file Download diff file Expand all files Collapse all files

37
drivers/ata/pata_arasan_cf.c
View file

@ -209,8 +209,6 @@ struct arasan_cf_dev {
struct dma_chan *dma_chan;
/* Mask for DMA transfers */
dma_cap_mask_t mask;
/* dma channel private data */
void *dma_priv;
/* DMA transfer work */
struct work_struct work;
/* DMA delayed finish work */
@ -308,6 +306,7 @@ static void cf_card_detect(struct arasan_cf_dev *acdev, bool hotplugged)
static int cf_init(struct arasan_cf_dev *acdev)
{
struct arasan_cf_pdata *pdata = dev_get_platdata(acdev->host->dev);
unsigned int if_clk;
unsigned long flags;
int ret = 0;
@ -325,8 +324,12 @@ static int cf_init(struct arasan_cf_dev *acdev)
spin_lock_irqsave(&acdev->host->lock, flags);
/* configure CF interface clock */
writel((pdata->cf_if_clk <= CF_IF_CLK_200M) ? pdata->cf_if_clk :
CF_IF_CLK_166M, acdev->vbase + CLK_CFG);
/* TODO: read from device tree */
if_clk = CF_IF_CLK_166M;
if (pdata && pdata->cf_if_clk <= CF_IF_CLK_200M)
if_clk = pdata->cf_if_clk;
writel(if_clk, acdev->vbase + CLK_CFG);
writel(TRUE_IDE_MODE | CFHOST_ENB, acdev->vbase + OP_MODE);
cf_interrupt_enable(acdev, CARD_DETECT_IRQ, 1);
@ -357,12 +360,6 @@ static void dma_callback(void *dev)
complete(&acdev->dma_completion);
}
static bool filter(struct dma_chan *chan, void *slave)
{
chan->private = slave;
return true;
}
static inline void dma_complete(struct arasan_cf_dev *acdev)
{
struct ata_queued_cmd *qc = acdev->qc;
@ -530,8 +527,7 @@ static void data_xfer(struct work_struct *work)
/* request dma channels */
/* dma_request_channel may sleep, so calling from process context */
acdev->dma_chan = dma_request_channel(acdev->mask, filter,
acdev->dma_priv);
acdev->dma_chan = dma_request_slave_channel(acdev->host->dev, "data");
if (!acdev->dma_chan) {
dev_err(acdev->host->dev, "Unable to get dma_chan\n");
goto chan_request_fail;
@ -798,6 +794,7 @@ static int arasan_cf_probe(struct platform_device *pdev)
struct ata_host *host;
struct ata_port *ap;
struct resource *res;
u32 quirk;
irq_handler_t irq_handler = NULL;
int ret = 0;
@ -817,12 +814,17 @@ static int arasan_cf_probe(struct platform_device *pdev)
return -ENOMEM;
}
if (pdata)
quirk = pdata->quirk;
else
quirk = CF_BROKEN_UDMA; /* as it is on spear1340 */
/* if irq is 0, support only PIO */
acdev->irq = platform_get_irq(pdev, 0);
if (acdev->irq)
irq_handler = arasan_cf_interrupt;
else
pdata->quirk |= CF_BROKEN_MWDMA | CF_BROKEN_UDMA;
quirk |= CF_BROKEN_MWDMA | CF_BROKEN_UDMA;
acdev->pbase = res->start;
acdev->vbase = devm_ioremap_nocache(&pdev->dev, res->start,
@ -859,17 +861,16 @@ static int arasan_cf_probe(struct platform_device *pdev)
INIT_WORK(&acdev->work, data_xfer);
INIT_DELAYED_WORK(&acdev->dwork, delayed_finish);
dma_cap_set(DMA_MEMCPY, acdev->mask);
acdev->dma_priv = pdata->dma_priv;
/* Handle platform specific quirks */
if (pdata->quirk) {
if (pdata->quirk & CF_BROKEN_PIO) {
if (quirk) {
if (quirk & CF_BROKEN_PIO) {
ap->ops->set_piomode = NULL;
ap->pio_mask = 0;
}
if (pdata->quirk & CF_BROKEN_MWDMA)
if (quirk & CF_BROKEN_MWDMA)
ap->mwdma_mask = 0;
if (pdata->quirk & CF_BROKEN_UDMA)
if (quirk & CF_BROKEN_UDMA)
ap->udma_mask = 0;
}
ap->flags |= ATA_FLAG_PIO_POLLING | ATA_FLAG_NO_ATAPI;