| Message ID | 20230706154831.19100-2-henning.schild@siemens.com |
|---|---|
| State | New |
| Headers | show |
| Series | platform/x86: add CMOS battery monitoring for simatic IPCs | expand |
On 7/6/23 08:48, Henning Schild wrote: > The IO region used for the watchdog also hold CMOS battery monitoring > information. Make the access muxed so that a hwmon driver can use the > region as well. > > Signed-off-by: Henning Schild <henning.schild@siemens.com> Acked-by: Guenter Roeck <linux@roeck-us.net> > --- > drivers/watchdog/simatic-ipc-wdt.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-) > > diff --git a/drivers/watchdog/simatic-ipc-wdt.c b/drivers/watchdog/simatic-ipc-wdt.c > index 6599695dc672..cdc1a2e15180 100644 > --- a/drivers/watchdog/simatic-ipc-wdt.c > +++ b/drivers/watchdog/simatic-ipc-wdt.c > @@ -155,9 +155,8 @@ static int simatic_ipc_wdt_probe(struct platform_device *pdev) > > switch (plat->devmode) { > case SIMATIC_IPC_DEVICE_227E: > - if (!devm_request_region(dev, gp_status_reg_227e_res.start, > - resource_size(&gp_status_reg_227e_res), > - KBUILD_MODNAME)) { > + res = &gp_status_reg_227e_res; > + if (!request_muxed_region(res->start, resource_size(res), res->name)) { > dev_err(dev, > "Unable to register IO resource at %pR\n", > &gp_status_reg_227e_res); > @@ -210,6 +209,10 @@ static int simatic_ipc_wdt_probe(struct platform_device *pdev) > if (wdd_data.bootstatus) > dev_warn(dev, "last reboot caused by watchdog reset\n"); > > + if (plat->devmode == SIMATIC_IPC_DEVICE_227E) > + release_region(gp_status_reg_227e_res.start, > + resource_size(&gp_status_reg_227e_res)); > + > watchdog_set_nowayout(&wdd_data, nowayout); > watchdog_stop_on_reboot(&wdd_data); > return devm_watchdog_register_device(dev, &wdd_data);
Am Mon, 10 Jul 2023 06:45:14 -0700 schrieb Guenter Roeck <linux@roeck-us.net>: > On Mon, Jul 10, 2023 at 03:33:45PM +0200, Hans de Goede wrote: > > Hi Guenter, > > > > On 7/6/23 18:03, Guenter Roeck wrote: > > > On 7/6/23 08:48, Henning Schild wrote: > > >> The IO region used for the watchdog also hold CMOS battery > > >> monitoring information. Make the access muxed so that a hwmon > > >> driver can use the region as well. > > >> > > >> Signed-off-by: Henning Schild <henning.schild@siemens.com> > > > > > > Acked-by: Guenter Roeck <linux@roeck-us.net> > > > > Thank you. Is it ok if I pick up his patch and merge it together > > with 2/2 through the pdx86 tree ? > > > > Yes. That was my assumption. Thanks guys. Cant believe i made it with v1. Getting better at this ;) Henning > Guenter > > > Regards, > > > > Hans > > > > > > > > > >> --- > > >> drivers/watchdog/simatic-ipc-wdt.c | 9 ++++++--- > > >> 1 file changed, 6 insertions(+), 3 deletions(-) > > >> > > >> diff --git a/drivers/watchdog/simatic-ipc-wdt.c > > >> b/drivers/watchdog/simatic-ipc-wdt.c index > > >> 6599695dc672..cdc1a2e15180 100644 --- > > >> a/drivers/watchdog/simatic-ipc-wdt.c +++ > > >> b/drivers/watchdog/simatic-ipc-wdt.c @@ -155,9 +155,8 @@ static > > >> int simatic_ipc_wdt_probe(struct platform_device *pdev) switch > > >> (plat->devmode) { case SIMATIC_IPC_DEVICE_227E: > > >> - if (!devm_request_region(dev, > > >> gp_status_reg_227e_res.start, > > >> - resource_size(&gp_status_reg_227e_res), > > >> - KBUILD_MODNAME)) { > > >> + res = &gp_status_reg_227e_res; > > >> + if (!request_muxed_region(res->start, > > >> resource_size(res), res->name)) { dev_err(dev, > > >> "Unable to register IO resource at %pR\n", > > >> &gp_status_reg_227e_res); > > >> @@ -210,6 +209,10 @@ static int simatic_ipc_wdt_probe(struct > > >> platform_device *pdev) if (wdd_data.bootstatus) > > >> dev_warn(dev, "last reboot caused by watchdog > > >> reset\n"); > > >> + if (plat->devmode == SIMATIC_IPC_DEVICE_227E) > > >> + release_region(gp_status_reg_227e_res.start, > > >> + resource_size(&gp_status_reg_227e_res)); > > >> + > > >> watchdog_set_nowayout(&wdd_data, nowayout); > > >> watchdog_stop_on_reboot(&wdd_data); > > >> return devm_watchdog_register_device(dev, &wdd_data); > > > > >
diff --git a/drivers/watchdog/simatic-ipc-wdt.c b/drivers/watchdog/simatic-ipc-wdt.c index 6599695dc672..cdc1a2e15180 100644 --- a/drivers/watchdog/simatic-ipc-wdt.c +++ b/drivers/watchdog/simatic-ipc-wdt.c @@ -155,9 +155,8 @@ static int simatic_ipc_wdt_probe(struct platform_device *pdev) switch (plat->devmode) { case SIMATIC_IPC_DEVICE_227E: - if (!devm_request_region(dev, gp_status_reg_227e_res.start, - resource_size(&gp_status_reg_227e_res), - KBUILD_MODNAME)) { + res = &gp_status_reg_227e_res; + if (!request_muxed_region(res->start, resource_size(res), res->name)) { dev_err(dev, "Unable to register IO resource at %pR\n", &gp_status_reg_227e_res); @@ -210,6 +209,10 @@ static int simatic_ipc_wdt_probe(struct platform_device *pdev) if (wdd_data.bootstatus) dev_warn(dev, "last reboot caused by watchdog reset\n"); + if (plat->devmode == SIMATIC_IPC_DEVICE_227E) + release_region(gp_status_reg_227e_res.start, + resource_size(&gp_status_reg_227e_res)); + watchdog_set_nowayout(&wdd_data, nowayout); watchdog_stop_on_reboot(&wdd_data); return devm_watchdog_register_device(dev, &wdd_data);
The IO region used for the watchdog also hold CMOS battery monitoring information. Make the access muxed so that a hwmon driver can use the region as well. Signed-off-by: Henning Schild <henning.schild@siemens.com> --- drivers/watchdog/simatic-ipc-wdt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)