Re: [PATCH V3 7/9] watchdog: da9062/61: watchdog driver

Guenter Roeck
2016-10-31T16:28:17Z

On 10/31/2016 09:02 AM, Steve Twiss wrote:
> From: Steve Twiss <stwiss.opensource@diasemi.com>
>
> The of_device_id match array is added to support "dlg,da9062-watchdog"
> as a valid .compatible string. A MODULE_DEVICE_TABLE() macro is added.
>
> This patch assumes the use of a DA9062 fallback compatible string for the
> DTS to pick up the DA9062 device driver for use with the DA9061 watchdog
> hardware
>
> Copyright header is updated to add DA9061 in its description and the module
> description macro is extended to include DA9061.
>
> Kconfig is updated to reflect support for DA9061/62.
>
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

>
> ---
> This patch applies against linux-next and v4.8
>
> v2 -> v3
> - Patch renamed from [PATCH V2 08/10] to [PATCH V3 7/9]
> - Removal of match->data and of_match_node search. There is only one
> compatible string now. and delete the .data = &da9062_watchdog_info
> association in the struct of_device_id compatible table.
> - Addition of MODULE_DEVICE_TABLE macro to allow modinfo additions:
> da9062_wdt.ko platform:da9062_watchdog
> of:N*T*Cdlg,da9062_watchdogC*
> of:N*T*Cdlg,da9062_watchdog
>
> v1 -> v2
> - Patch renamed from [PATCH V1 04/10] to [PATCH V2 08/10] -- these
> changes were made to fix checkpatch warnings caused by the patch
> set dependency order
> - Removal of the DA9061 compatible entries for this device driver.
> - Additional explanation in the patch description for the use of a
> fall-back compatible DTS string
>
> Guenter,
>
> Alterations have been made in accordance with the previous e-mail thread
> on the use of compatible strings: https://lkml.org/lkml/2016/10/7/641
> This patch now assumes the use of a fallback compatible string in the DTS.
> Of the form: compatible = "dlg,da9061-watchdog", "dlg,da9062-watchdog";
>
> Regards,
> Steve Twiss, Dialog Semiconductor Ltd.
>
>
> drivers/watchdog/Kconfig | 4 ++--
> drivers/watchdog/da9062_wdt.c | 12 ++++++++++--
> 2 files changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index 1bffe00..d6b4088 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -104,11 +104,11 @@ config DA9063_WATCHDOG
> This driver can be built as a module. The module name is da9063_wdt.
>
> config DA9062_WATCHDOG
> - tristate "Dialog DA9062 Watchdog"
> + tristate "Dialog DA9062/61 Watchdog"
> depends on MFD_DA9062
> select WATCHDOG_CORE
> help
> - Support for the watchdog in the DA9062 PMIC.
> + Support for the watchdog in the DA9062 and DA9061 PMICs.
>
> This driver can be built as a module. The module name is da9062_wdt.
>
> diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c
> index 7386111..a02cee6 100644
> --- a/drivers/watchdog/da9062_wdt.c
> +++ b/drivers/watchdog/da9062_wdt.c
> @@ -1,5 +1,5 @@
> /*
> - * da9062_wdt.c - WDT device driver for DA9062
> + * Watchdog device driver for DA9062 and DA9061 PMICs
> * Copyright (C) 2015 Dialog Semiconductor Ltd.
> *
> * This program is free software; you can redistribute it and/or
> @@ -188,6 +188,13 @@ static const struct watchdog_ops da9062_watchdog_ops = {
> .set_timeout = da9062_wdt_set_timeout,
> };
>
> +static const struct of_device_id da9062_compatible_id_table[] = {
> + { .compatible = "dlg,da9062-watchdog", },
> + { },
> +};
> +
> +MODULE_DEVICE_TABLE(of, da9062_compatible_id_table);
> +
> static int da9062_wdt_probe(struct platform_device *pdev)
> {
> int ret;
> @@ -244,11 +251,12 @@ static struct platform_driver da9062_wdt_driver = {
> .remove = da9062_wdt_remove,
> .driver = {
> .name = "da9062-watchdog",
> + .of_match_table = da9062_compatible_id_table,
> },
> };
> module_platform_driver(da9062_wdt_driver);
>
> MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");
> -MODULE_DESCRIPTION("WDT device driver for Dialog DA9062");
> +MODULE_DESCRIPTION("WDT device driver for Dialog DA9062 and DA9061");
> MODULE_LICENSE("GPL");
> MODULE_ALIAS("platform:da9062-watchdog");
>