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SubjectRe: [PATCH 10/61] gpio: simplify getting .drvdata
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Hi Wolfram,

On 19.4.2018 16:05, Wolfram Sang wrote:
> We should get drvdata from struct device directly. Going via
> platform_device is an unneeded step back and forth.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> ---
>
> Build tested only. buildbot is happy. Please apply individually.
>
> drivers/gpio/gpio-dwapb.c | 6 ++----
> drivers/gpio/gpio-lynxpoint.c | 3 +--
> drivers/gpio/gpio-omap.c | 12 ++++--------
> drivers/gpio/gpio-tegra.c | 6 ++----
> drivers/gpio/gpio-zynq.c | 6 ++----
> 5 files changed, 11 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
> index 226977f78482..caaabb79e31f 100644
> --- a/drivers/gpio/gpio-dwapb.c
> +++ b/drivers/gpio/gpio-dwapb.c
> @@ -732,8 +732,7 @@ static int dwapb_gpio_remove(struct platform_device *pdev)
> #ifdef CONFIG_PM_SLEEP
> static int dwapb_gpio_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
> + struct dwapb_gpio *gpio = dev_get_drvdata(dev);
> struct gpio_chip *gc = &gpio->ports[0].gc;
> unsigned long flags;
> int i;
> @@ -777,8 +776,7 @@ static int dwapb_gpio_suspend(struct device *dev)
>
> static int dwapb_gpio_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
> + struct dwapb_gpio *gpio = dev_get_drvdata(dev);
> struct gpio_chip *gc = &gpio->ports[0].gc;
> unsigned long flags;
> int i;
> diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
> index 1e557b10d73e..55fa33b7209f 100644
> --- a/drivers/gpio/gpio-lynxpoint.c
> +++ b/drivers/gpio/gpio-lynxpoint.c
> @@ -408,8 +408,7 @@ static int lp_gpio_runtime_resume(struct device *dev)
>
> static int lp_gpio_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct lp_gpio *lg = platform_get_drvdata(pdev);
> + struct lp_gpio *lg = dev_get_drvdata(dev);
> unsigned long reg;
> int i;
>
> diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
> index 35971a341c40..b4f8a048a2a1 100644
> --- a/drivers/gpio/gpio-omap.c
> +++ b/drivers/gpio/gpio-omap.c
> @@ -856,8 +856,7 @@ static void omap_gpio_unmask_irq(struct irq_data *d)
>
> static int omap_mpuio_suspend_noirq(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct gpio_bank *bank = platform_get_drvdata(pdev);
> + struct gpio_bank *bank = dev_get_drvdata(dev);
> void __iomem *mask_reg = bank->base +
> OMAP_MPUIO_GPIO_MASKIT / bank->stride;
> unsigned long flags;
> @@ -871,8 +870,7 @@ static int omap_mpuio_suspend_noirq(struct device *dev)
>
> static int omap_mpuio_resume_noirq(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct gpio_bank *bank = platform_get_drvdata(pdev);
> + struct gpio_bank *bank = dev_get_drvdata(dev);
> void __iomem *mask_reg = bank->base +
> OMAP_MPUIO_GPIO_MASKIT / bank->stride;
> unsigned long flags;
> @@ -1284,8 +1282,7 @@ static void omap_gpio_restore_context(struct gpio_bank *bank);
>
> static int omap_gpio_runtime_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct gpio_bank *bank = platform_get_drvdata(pdev);
> + struct gpio_bank *bank = dev_get_drvdata(dev);
> u32 l1 = 0, l2 = 0;
> unsigned long flags;
> u32 wake_low, wake_hi;
> @@ -1352,8 +1349,7 @@ static void omap_gpio_init_context(struct gpio_bank *p);
>
> static int omap_gpio_runtime_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct gpio_bank *bank = platform_get_drvdata(pdev);
> + struct gpio_bank *bank = dev_get_drvdata(dev);
> u32 l = 0, gen, gen0, gen1;
> unsigned long flags;
> int c;
> diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
> index 94396caaca75..04c963f03b68 100644
> --- a/drivers/gpio/gpio-tegra.c
> +++ b/drivers/gpio/gpio-tegra.c
> @@ -403,8 +403,7 @@ static void tegra_gpio_irq_handler(struct irq_desc *desc)
> #ifdef CONFIG_PM_SLEEP
> static int tegra_gpio_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct tegra_gpio_info *tgi = platform_get_drvdata(pdev);
> + struct tegra_gpio_info *tgi = dev_get_drvdata(dev);
> unsigned long flags;
> unsigned int b, p;
>
> @@ -443,8 +442,7 @@ static int tegra_gpio_resume(struct device *dev)
>
> static int tegra_gpio_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct tegra_gpio_info *tgi = platform_get_drvdata(pdev);
> + struct tegra_gpio_info *tgi = dev_get_drvdata(dev);
> unsigned long flags;
> unsigned int b, p;
>
> diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
> index 75ee877e5cd5..49534241bb1e 100644
> --- a/drivers/gpio/gpio-zynq.c
> +++ b/drivers/gpio/gpio-zynq.c
> @@ -697,8 +697,7 @@ static int __maybe_unused zynq_gpio_resume(struct device *dev)
>
> static int __maybe_unused zynq_gpio_runtime_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct zynq_gpio *gpio = platform_get_drvdata(pdev);
> + struct zynq_gpio *gpio = dev_get_drvdata(dev);
>
> clk_disable_unprepare(gpio->clk);
>
> @@ -707,8 +706,7 @@ static int __maybe_unused zynq_gpio_runtime_suspend(struct device *dev)
>
> static int __maybe_unused zynq_gpio_runtime_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct zynq_gpio *gpio = platform_get_drvdata(pdev);
> + struct zynq_gpio *gpio = dev_get_drvdata(dev);
>
> return clk_prepare_enable(gpio->clk);
> }
>

There are two more occurences in this gpio-zynq driver.
zynq_gpio_resume, zynq_gpio_suspend. It wasn't detected because these
two lines are not together. But the same change can be applied for them too.

Thanks,
Michal


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