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SubjectRe: [PATCH v4 4/9] power: reset: Add AT91RM9200 reset driver
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On Thu, 2015-03-05 at 16:49 +0100, Alexandre Belloni wrote:
> --- a/drivers/power/reset/Kconfig
> +++ b/drivers/power/reset/Kconfig
> @@ -30,6 +30,13 @@ config POWER_RESET_AT91_RESET
> This driver supports restart for Atmel AT91SAM9 and SAMA5
> SoCs
>
> +config POWER_RESET_AT91RM9200_RESET
> + bool "Atmel AT91RM9200 reset driver"

This adds a bool symbol.

> + depends on ARCH_AT91 && MFD_SYSCON
> + default SOC_AT91RM9200
> + help
> + This driver supports restart for Atmel AT91RM9200.
> +
> config POWER_RESET_AXXIA
> bool "LSI Axxia reset driver"
> depends on ARCH_AXXIA
> diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
> index 11de15bae52e..96e972bbb922 100644
> --- a/drivers/power/reset/Makefile
> +++ b/drivers/power/reset/Makefile
> @@ -1,6 +1,7 @@
> obj-$(CONFIG_POWER_RESET_AS3722) += as3722-poweroff.o
> obj-$(CONFIG_POWER_RESET_AT91_POWEROFF) += at91-poweroff.o
> obj-$(CONFIG_POWER_RESET_AT91_RESET) += at91-reset.o
> +obj-$(CONFIG_POWER_RESET_AT91RM9200_RESET) += at91rm9200-reset.o

This objectfile will never be modular.

> obj-$(CONFIG_POWER_RESET_AXXIA) += axxia-reset.o
> obj-$(CONFIG_POWER_RESET_BRCMSTB) += brcmstb-reboot.o
> obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o
> diff --git a/drivers/power/reset/at91rm9200-reset.c b/drivers/power/reset/at91rm9200-reset.c
> new file mode 100644
> index 000000000000..b739ac82b9c9
> --- /dev/null
> +++ b/drivers/power/reset/at91rm9200-reset.c
> @@ -0,0 +1,72 @@

> +#include <linux/module.h>

Is this needed?

> +static struct platform_driver at91rm9200_reset_driver = {
> + .probe = at91rm9200_reset_probe,
> + .driver = {
> + .name = "at91rm9200-reset",
> + .of_match_table = at91rm9200_reset_of_match,
> + },
> +};
> +module_platform_driver(at91rm9200_reset_driver);

This should, perhaps, be replaced by a wrapper that calls
platform_driver_register(at91rm9200_reset_driver)

while that wrapper is, well, called through
device_initcall()

or something similar. I didn't test this suggestion.

> +MODULE_ALIAS("platform:at91rm9200-reset");
> +MODULE_AUTHOR("Alexandre Belloni <alexandre.belloni@free-electrons.com>");
> +MODULE_DESCRIPTION("Atmel at91rm9200 System Timer Reset driver");
> +MODULE_LICENSE("GPL v2");

All these macros will be, basically, preprocessed away.


Paul Bolle



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