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i2c: sh_mobile: optimize irq entry 

We can simply pass the pointer to the private structure to the irq
routine instead of passing the platform device and looking up its
driver_data.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Wolfram Sang 2014-12-04 17:20:49 +01:00 committed by Wolfram Sang
parent 86261fdd65
commit 530834b13f
1 changed files with 4 additions and 5 deletions
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9
drivers/i2c/busses/i2c-sh_mobile.c
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@ -466,8 +466,7 @@ static int sh_mobile_i2c_isr_rx(struct sh_mobile_i2c_data *pd)
static irqreturn_t sh_mobile_i2c_isr(int irq, void *dev_id)
{
struct platform_device *dev = dev_id;
struct sh_mobile_i2c_data *pd = platform_get_drvdata(dev);
struct sh_mobile_i2c_data *pd = dev_id;
unsigned char sr;
int wakeup = 0;
@ -804,7 +803,7 @@ static void sh_mobile_i2c_release_dma(struct sh_mobile_i2c_data *pd)
}
}
static int sh_mobile_i2c_hook_irqs(struct platform_device *dev)
static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, struct sh_mobile_i2c_data *pd)
{
struct resource *res;
resource_size_t n;
@ -813,7 +812,7 @@ static int sh_mobile_i2c_hook_irqs(struct platform_device *dev)
while ((res = platform_get_resource(dev, IORESOURCE_IRQ, k))) {
for (n = res->start; n <= res->end; n++) {
ret = devm_request_irq(&dev->dev, n, sh_mobile_i2c_isr,
0, dev_name(&dev->dev), dev);
0, dev_name(&dev->dev), pd);
if (ret) {
dev_err(&dev->dev, "cannot request IRQ %pa\n", &n);
return ret;
@ -844,7 +843,7 @@ static int sh_mobile_i2c_probe(struct platform_device *dev)
return PTR_ERR(pd->clk);
}
ret = sh_mobile_i2c_hook_irqs(dev);
ret = sh_mobile_i2c_hook_irqs(dev, pd);
if (ret)
return ret;