Move the channel setup code from sh_cmt_setup to a new
sh_cmt_setup_channel function and call it from sh_cmt_setup.
Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
---
drivers/clocksource/sh_cmt.c | 87 ++++++++++++++++++++++++++------------------
1 file changed, 51 insertions(+), 36 deletions(-)
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 68cca0a..3a3cc83 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -695,12 +695,59 @@ static int sh_cmt_register(struct sh_cmt_channel *ch,
char *name,
return 0;
}
+static int sh_cmt_setup_channel(struct sh_cmt_channel *ch,
+ struct sh_cmt_device *cmt)
+{
+ struct sh_timer_config *cfg = cmt->pdev->dev.platform_data;
+ int irq;
+ int ret;
+
+ memset(ch, 0, sizeof(*ch));
+ ch->cmt = cmt;
+
+ /* Request irq using setup_irq() (too early for request_irq()). */
+ irq = platform_get_irq(cmt->pdev, 0);
+ if (irq < 0) {
+ dev_err(&cmt->pdev->dev, "failed to get irq\n");
+ return irq;
+ }
+
+ ch->irqaction.name = dev_name(&cmt->pdev->dev);
+ ch->irqaction.handler = sh_cmt_interrupt;
+ ch->irqaction.dev_id = ch;
+ ch->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING;
+
+ if (cmt->width == (sizeof(ch->max_match_value) * 8))
+ ch->max_match_value = ~0;
+ else
+ ch->max_match_value = (1 << cmt->width) - 1;
+
+ ch->match_value = ch->max_match_value;
+ raw_spin_lock_init(&ch->lock);
+
+ ret = sh_cmt_register(ch, (char *)dev_name(&cmt->pdev->dev),
+ cfg->clockevent_rating,
+ cfg->clocksource_rating);
+ if (ret) {
+ dev_err(&cmt->pdev->dev, "registration failed\n");
+ return ret;
+ }
+ ch->cs_enabled = false;
+
+ ret = setup_irq(irq, &ch->irqaction);
+ if (ret) {
+ dev_err(&cmt->pdev->dev, "failed to request irq %d\n", irq);
+ return ret;
+ }
+
+ return 0;
+}
+
static int sh_cmt_setup(struct sh_cmt_device *cmt, struct platform_device
*pdev)
{
struct sh_timer_config *cfg = pdev->dev.platform_data;
- struct sh_cmt_channel *ch = &cmt->channel;
struct resource *res, *res2;
- int irq, ret;
+ int ret;
ret = -ENXIO;
memset(cmt, 0, sizeof(*cmt));
@@ -720,12 +767,6 @@ static int sh_cmt_setup(struct sh_cmt_device *cmt, struct
platform_device *pdev)
/* optional resource for the shared timer start/stop register */
res2 = platform_get_resource(cmt->pdev, IORESOURCE_MEM, 1);
- irq = platform_get_irq(cmt->pdev, 0);
- if (irq < 0) {
- dev_err(&cmt->pdev->dev, "failed to get irq\n");
- goto err0;
- }
-
/* map memory, let mapbase point to our channel */
cmt->mapbase = ioremap_nocache(res->start, resource_size(res));
if (cmt->mapbase == NULL) {
@@ -742,12 +783,6 @@ static int sh_cmt_setup(struct sh_cmt_device *cmt, struct
platform_device *pdev)
goto err1;
}
- /* request irq using setup_irq() (too early for request_irq()) */
- ch->irqaction.name = dev_name(&cmt->pdev->dev);
- ch->irqaction.handler = sh_cmt_interrupt;
- ch->irqaction.dev_id = ch;
- ch->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING;
-
/* get hold of clock */
cmt->clk = clk_get(&cmt->pdev->dev, "cmt_fck");
if (IS_ERR(cmt->clk)) {
@@ -783,29 +818,9 @@ static int sh_cmt_setup(struct sh_cmt_device *cmt, struct
platform_device *pdev)
cmt->clear_bits = ~0xc000;
}
- if (cmt->width == (sizeof(ch->max_match_value) * 8))
- ch->max_match_value = ~0;
- else
- ch->max_match_value = (1 << cmt->width) - 1;
-
- ch->cmt = cmt;
- ch->match_value = ch->max_match_value;
- raw_spin_lock_init(&ch->lock);
-
- ret = sh_cmt_register(ch, (char *)dev_name(&cmt->pdev->dev),
- cfg->clockevent_rating,
- cfg->clocksource_rating);
- if (ret) {
- dev_err(&cmt->pdev->dev, "registration failed\n");
- goto err4;
- }
- ch->cs_enabled = false;
-
- ret = setup_irq(irq, &ch->irqaction);
- if (ret) {
- dev_err(&cmt->pdev->dev, "failed to request irq %d\n", irq);
+ ret = sh_cmt_setup_channel(&cmt->channel, cmt);
+ if (ret < 0)
goto err4;
- }
platform_set_drvdata(pdev, cmt);
--
1.8.3.2
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