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path: root/drivers/rtc/rtc-palmas.c
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2023-03-18rtc: palmas: Convert to platform remove callback returning voidUwe Kleine-König1-3/+2
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230304133028.2135435-23-u.kleine-koenig@pengutronix.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2021-07-10rtc: palmas: convert to SPDX identifierNobuhiro Iwamatsu1-14/+1
Use SPDX-License-Identifier instead of a verbose license text. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210707075804.337458-5-nobuhiro1.iwamatsu@toshiba.co.jp
2016-09-02rtc: constify rtc_class_ops structuresJulia Lawall1-1/+1
Check for rtc_class_ops structures that are only passed to devm_rtc_device_register, rtc_device_register, platform_device_register_data, all of which declare the corresponding parameter as const. Declare rtc_class_ops structures that have these properties as const. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct rtc_class_ops i@p = { ... }; @ok@ identifier r.i; expression e1,e2,e3,e4; position p; @@ ( devm_rtc_device_register(e1,e2,&i@p,e3) | rtc_device_register(e1,e2,&i@p,e3) | platform_device_register_data(e1,e2,e3,&i@p,e4) ) @bad@ position p != {r.p,ok.p}; identifier r.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct rtc_class_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-03-14rtc: palmas: Drop IRQF_EARLY_RESUME flagGrygorii Strashko1-2/+1
Palams RTC IRQ is nested threaded and wired to the Palmas inerrupt controller. So, this flag is not required for nested irqs anymore, since commit 3c646f2c6aa9 ("genirq: Don't suspend nested_thread irqs over system suspend") was merged. Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Nishanth Menon <nm@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-06-25rtc: palmas: Initialise bb_charging flag before using itLaxman Dewangan1-1/+1
Initialise the variable high_bb_charging before using it to avoid configuring wrong value and fix following compilation warning: /* rtc-palmas.c: In function ‘palmas_rtc_probe’: rtc-palmas.c:242:7: warning: ‘high_bb_charging’ may be used uninitialized in this function */ Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-10-20rtc: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-06-07rtc: rtc-palmas: make of_device_id array constJingoo Han1-1/+1
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-04drivers/rtc/rtc-palmas.c: use SIMPLE_DEV_PM_OPS macroJingoo Han1-3/+2
Use SIMPLE_DEV_PM_OPS macro in order to make the code simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-12drivers/rtc/rtc-palmas.c: support for backup battery chargingLaxman Dewangan1-0/+35
Palmas series device like TPS65913, TPS80036 supports the backup battery for powering the RTC when no other energy source is available. The backup battery is optional, connected to the VBACKUP pin, and can be nonrechargeable or rechargeable. The rechargeable battery can be charged from the system supply using the backup battery charger. Add support for enabling charging of this backup battery. Also add the DT binding document and the new properties to have this support. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Acked-by: Kumar Gala <galak@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-04drivers/rtc/rtc-palmas.c: init wakeup before device registerWei Ni1-1/+1
Enable dev as wakeup device before calling rtc_device_register(), so that it can create the "wakealarm" sysfs. Signed-off-by: Wei Ni <wni@nvidia.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30drivers/rtc/rtc-palmas.c: add dt supportLaxman Dewangan1-0/+10
Add of_device_id table for Palma RTC to be enable the driver from DT file. The driver can be registered from DT file as: palmas: tps65913@58 { ::::::::::: palmas_rtc { compatible = "ti,palmas-rtc"; interrupt-parent = <&palmas>; interrupts = <8 0>; }; }; Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30rtc: rtc-palmas: use devm_rtc_device_register() and devm_request_threaded_irq()Jingoo Han1-7/+2
devm_rtc_device_register() is device managed and makes cleanup paths simpler. Also, use devm_request_threaded_irq() to make cleanup paths more simple. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-14rtc: palmas: Add RTC driver Palmas series PMICLaxman Dewangan1-0/+339
TI Palmas series PMIC support the RTC and alarm functionality. Add RTC driver with alarm support for this device. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>