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authorWolfram Sang <wsa+renesas@sang-engineering.com>2014-12-04 17:20:49 +0100
committerWolfram Sang <wsa@the-dreams.de>2014-12-04 18:49:54 +0100
commit530834b13feff543a49b214eb750e97fbd7a22be (patch)
tree3a04e119e82f1b465754491d586631679a29702f /drivers/i2c
parent86261fdd65ce076c0aa05dbf3f5f5fe10aab1bcf (diff)
downloadlinux-530834b13feff543a49b214eb750e97fbd7a22be.tar.bz2
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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-sh_mobile.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index c7f36c1ce688..a758ccc29752 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -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;