diff mbox series

[v1,1/7] gpio-amdpt: ACPI: Use the ACPI_COMPANION() macro directly

Message ID 2179627.iZASKD2KPV@kreacher
State New
Headers show
Series [v1,1/7] gpio-amdpt: ACPI: Use the ACPI_COMPANION() macro directly | expand

Commit Message

Rafael J. Wysocki Oct. 12, 2021, 5:44 p.m. UTC 
From: Rafael J. Wysocki <rafael@kernel.org>

The ACPI_HANDLE() macro is a wrapper arond the ACPI_COMPANION()
macro and the ACPI handle produced by the former comes from the
ACPI device object produced by the latter, so it is way more
straightforward to evaluate the latter directly instead of passing
the handle produced by the former to acpi_bus_get_device().

Modify pt_gpio_probe() accordingly (no intentional functional impact).

Signed-off-by: Rafael J. Wysocki <rafael@kernel.org>
---
 drivers/gpio/gpio-amdpt.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

Comments

Bartosz Golaszewski Oct. 13, 2021, 2:44 p.m. UTC | #1 
On Tue, Oct 12, 2021 at 7:51 PM Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
>
> From: Rafael J. Wysocki <rafael@kernel.org>
>
> The ACPI_HANDLE() macro is a wrapper arond the ACPI_COMPANION()
> macro and the ACPI handle produced by the former comes from the
> ACPI device object produced by the latter, so it is way more
> straightforward to evaluate the latter directly instead of passing
> the handle produced by the former to acpi_bus_get_device().
>
> Modify pt_gpio_probe() accordingly (no intentional functional impact).
>
> Signed-off-by: Rafael J. Wysocki <rafael@kernel.org>
> ---
>  drivers/gpio/gpio-amdpt.c |    4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> Index: linux-pm/drivers/gpio/gpio-amdpt.c
> ===================================================================
> --- linux-pm.orig/drivers/gpio/gpio-amdpt.c
> +++ linux-pm/drivers/gpio/gpio-amdpt.c
> @@ -72,12 +72,10 @@ static void pt_gpio_free(struct gpio_chi
>  static int pt_gpio_probe(struct platform_device *pdev)
>  {
>         struct device *dev = &pdev->dev;
> -       struct acpi_device *acpi_dev;
> -       acpi_handle handle = ACPI_HANDLE(dev);
>         struct pt_gpio_chip *pt_gpio;
>         int ret = 0;
>
> -       if (acpi_bus_get_device(handle, &acpi_dev)) {
> +       if (!ACPI_COMPANION(dev)) {
>                 dev_err(dev, "PT GPIO device node not found\n");
>                 return -ENODEV;
>         }
>
>
>

Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
diff mbox series

Patch

Index: linux-pm/drivers/gpio/gpio-amdpt.c
===================================================================
--- linux-pm.orig/drivers/gpio/gpio-amdpt.c
+++ linux-pm/drivers/gpio/gpio-amdpt.c
@@ -72,12 +72,10 @@  static void pt_gpio_free(struct gpio_chi
 static int pt_gpio_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct acpi_device *acpi_dev;
-	acpi_handle handle = ACPI_HANDLE(dev);
 	struct pt_gpio_chip *pt_gpio;
 	int ret = 0;
 
-	if (acpi_bus_get_device(handle, &acpi_dev)) {
+	if (!ACPI_COMPANION(dev)) {
 		dev_err(dev, "PT GPIO device node not found\n");
 		return -ENODEV;
 	}