[PATCH v9 RESEND 1/3] watchdog: at91sam9_wdt: add device tree support
Nicolas Ferre
nicolas.ferre at atmel.com
Fri Nov 16 09:56:15 EST 2012
On 11/12/2012 09:37 AM, Fabio Porcedda :
> Tested on an at91sam9260 board (evk-pro3)
>
> Signed-off-by: Fabio Porcedda <fabio.porcedda at gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre at atmel.com>
(and to the whole patch series actually)
Wim, can you tell me if it is possible to merge this part through
arm-soc git tree with the rest of material for AT91? If yes, I would
need your Acked-by...
Thanks, best regards,
> ---
> Documentation/devicetree/bindings/watchdog/atmel-wdt.txt | 15 +++++++++++++++
> drivers/watchdog/at91sam9_wdt.c | 11 +++++++++++
> 2 files changed, 26 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
>
> diff --git a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
> new file mode 100644
> index 0000000..2957ebb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt
> @@ -0,0 +1,15 @@
> +* Atmel Watchdog Timers
> +
> +** at91sam9-wdt
> +
> +Required properties:
> +- compatible: must be "atmel,at91sam9260-wdt".
> +- reg: physical base address of the controller and length of memory mapped
> + region.
> +
> +Example:
> +
> + watchdog at fffffd40 {
> + compatible = "atmel,at91sam9260-wdt";
> + reg = <0xfffffd40 0x10>;
> + };
> diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
> index 05e1be8..dc42e44 100644
> --- a/drivers/watchdog/at91sam9_wdt.c
> +++ b/drivers/watchdog/at91sam9_wdt.c
> @@ -32,6 +32,7 @@
> #include <linux/timer.h>
> #include <linux/bitops.h>
> #include <linux/uaccess.h>
> +#include <linux/of.h>
>
> #include "at91sam9_wdt.h"
>
> @@ -302,11 +303,21 @@ static int __exit at91wdt_remove(struct platform_device *pdev)
> return res;
> }
>
> +#if defined(CONFIG_OF)
> +static const struct of_device_id at91_wdt_dt_ids[] __initconst = {
> + { .compatible = "atmel,at91sam9260-wdt" },
> + { /* sentinel */ }
> +};
> +
> +MODULE_DEVICE_TABLE(of, at91_wdt_dt_ids);
> +#endif
> +
> static struct platform_driver at91wdt_driver = {
> .remove = __exit_p(at91wdt_remove),
> .driver = {
> .name = "at91_wdt",
> .owner = THIS_MODULE,
> + .of_match_table = of_match_ptr(at91_wdt_dt_ids),
> },
> };
>
>
--
Nicolas Ferre
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