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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2014-12-04 17:20:49 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-12-04 18:49:54 +0100 |
| commit | 530834b13feff543a49b214eb750e97fbd7a22be (patch) | |
| tree | 3a04e119e82f1b465754491d586631679a29702f /drivers/i2c | |
| parent | 86261fdd65ce076c0aa05dbf3f5f5fe10aab1bcf (diff) | |
| download | linux-530834b13feff543a49b214eb750e97fbd7a22be.tar.gz linux-530834b13feff543a49b214eb750e97fbd7a22be.tar.bz2 linux-530834b13feff543a49b214eb750e97fbd7a22be.zip | |
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.c | 9 |
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; |