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2014-10-14rtc: ds1307: add trickle charger device tree bindingMatti Vaittinen1-4/+63
Some DS13XX devices have "trickle chargers". Introduce a device tree binding for specifying the trickle charger configuration for ds1339. Only ds1339 dt binding is supported because this is the only chip I have. I _assume_ the code would have worked on other allready supported chips. However I cannot check the resistor values for the other chips or test them. For other chips the driver code works as earlier Eg. it does not check the dt bindings at all Signed-off-by: Matti Vaittinen <matti.vaittinen@nsn.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pavel Machek <pavel@denx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14RTC: RK808: add RTC driver for RK808Chris Zhong3-0/+425
This is the initial version of the RK808 PMIC. This is a power management IC for multimedia products. It provides regulators that are able to supply power to processor cores and other components. The chip provides other modules including RTC, Clockout. Add RTC driver for supporting RTC device present inside RK808 PMIC. [akpm@linux-foundation.org: make tm_def static] Signed-off-by: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Zhang Qing <zhangqing@rock-chips.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Samuel Ortiz <sameo@linux.intel.com> says: Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Olof Johansson <olof@lixom.net> Cc: Dmitry Torokhov <dtor@chromium.org> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Kever Yang <kever.yang@rock-chips.com> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: make of_device_ids constUwe Kleine-König2-2/+2
of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. This allows to mark all struct of_device_id below drivers/rtc const, too. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: s3c: add support for RTC of Exynos3250 SoCChanwoo Choi1-1/+92
Add support for RTC of Exynos3250 SoC. The Exynos3250 needs source clock(32.768KHz) for RTC block. If source clock of RTC is registerd on clock list of common clk framework, Exynos RTC drvier have to control this clock. Clock list for s3c-rtc device: - rtc : CLK_RTC of CLK_GATE_IP_PERIR is gate clock for RTC. - rtc_src : XrtcXTI is 32.768.kHz source clock for RTC. (XRTCXTI: Specifies a clock from 32.768 kHz crystal pad with XRTCXTI and XRTCXTO pins. RTC uses this clock as the source of a real-time clock.) Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: s3c: add s3c_rtc_data structure to use variant data instead of s3c_cpu_typeChanwoo Choi1-172/+289
Add s3c_rtc_data structure to variant data according to SoC type. The s3c_rtc_data structure includes some functions to control RTC operation and specific data dependent on SoC type. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: s3c: remove warning message when checking coding style with checkpatch ↵Chanwoo Choi1-12/+14
script Remove warning message when checking codeing style with checkpatch script and reduce un-necessary i2c read operation on s3c_rtc_enable. WARNING: line over 80 characters #406: FILE: drivers/rtc/rtc-s3c.c:406: + if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0) { WARNING: line over 80 characters #414: FILE: drivers/rtc/rtc-s3c.c:414: + if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)) { WARNING: line over 80 characters #422: FILE: drivers/rtc/rtc-s3c.c:422: + if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)) { WARNING: Missing a blank line after declarations #451: FILE: drivers/rtc/rtc-s3c.c:451: + struct s3c_rtc_drv_data *data; + if (pdev->dev.of_node) { WARNING: Missing a blank line after declarations #453: FILE: drivers/rtc/rtc-s3c.c:453: + const struct of_device_id *match; + match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node); WARNING: DT compatible string "samsung,s3c2416-rtc" appears un-documented -- check ./Documentation/devicetree/bindings/ #650: FILE: drivers/rtc/rtc-s3c.c:650: + .compatible = "samsung,s3c2416-rtc", WARNING: DT compatible string "samsung,s3c2443-rtc" appears un-documented -- check ./Documentation/devicetree/bindings/ #653: FILE: drivers/rtc/rtc-s3c.c:653: + .compatible = "samsung,s3c2443-rtc", Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: s3c: define s3c_rtc structure to remove global variables.Chanwoo Choi1-215/+216
Define s3c_rtc structure including necessary variables for S3C RTC device instead of global variables. This patch improves the readability by removing global variables. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-14rtc: use c99 initializers in structuresJulia Lawall1-3/+15
Use c99 initializers for structures. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @decl@ identifier i1,fld; type T; field list[n] fs; @@ struct i1 { fs T fld; ...}; @bad@ identifier decl.i1,i2; expression e; initializer list[decl.n] is; @@ struct i1 i2 = { is, + .fld = e - e ,...}; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-08Merge tag 'drivers-for-linus' of ↵Linus Torvalds3-1/+456
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "These are changes for drivers that are intimately tied to some SoC and for some reason could not get merged through the respective subsystem maintainer tree. Most of the new code is for the Keystone Navigator driver, which is new base support that is going to be needed for their hardware accelerated network driver and other units. Most of the commits are for moving old code around from at91 and omap for things that are done in device drivers nowadays. - at91: move reset, poweroff, memory and clocksource code into drivers directories - socfpga: add edac driver (through arm-soc, as requested by Boris) - omap: move omap-intc code to drivers/irqchip - sunxi: added an RTC driver for sun6i - omap: mailbox driver related changes - keystone: support for the "Navigator" component - versatile: new reboot, led and soc drivers" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (92 commits) bus: arm-ccn: Fix spurious warning message leds: add device tree bindings for register bit LEDs soc: add driver for the ARM RealView power: reset: driver for the Versatile syscon reboot leds: add a driver for syscon-based LEDs drivers/soc: ti: fix build break with modules MAINTAINERS: Add Keystone Multicore Navigator drivers entry soc: ti: add Keystone Navigator DMA support Documentation: dt: soc: add Keystone Navigator DMA bindings soc: ti: add Keystone Navigator QMSS driver Documentation: dt: soc: add Keystone Navigator QMSS bindings rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtc rtc: sun6i: Add sun6i RTC driver irqchip: omap-intc: remove unnecessary comments irqchip: omap-intc: correct maximum number or MIR registers irqchip: omap-intc: enable TURBO idle mode irqchip: omap-intc: enable IP protection irqchip: omap-intc: remove unnecesary of_address_to_resource() call irqchip: omap-intc: comment style cleanup irqchip: omap-intc: minor improvement to omap_irq_pending() ...
2014-10-08Merge tag 'fixes-nc-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC non-critical bug fixes from Arnd Bergmann: "These are bug fixes for harmless problems that were not important enough to get fixed in 3.17. The majority of these are OMAP specific, but there are also a couple for Marvell mvebu, cns3xxx, and others, as well as some updates for the MAINTAINERS file. In particular, Robert Jarzmik and Daniel Mack now volunteered to help out maintaining the PXA platform, Krzysztof Halasa took over the cns3xxx platform, Carlo Caione is the maintainer for the new Amlogic meson platform, and Matthias Brugger is now listed for the mediatek platform he recently contributed" * tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) MAINTAINERS: update Shawn's email address MAINTAINERS: condense some Tegra related entries MAINTAINERS: add Alexandre Courbot for Tegra MAINTAINERS: CNS3xxx and IXP4xx update. MAINTAINERS: Add maintainers entry for Mediatek SoCs arm, vt8500, LLVMLlinux: Use mcr instead of mcr% for mach-vt8500 MAINTAINERS: add a third maintainer to mach-bcm CNS3xxx: Fix PCIe read size limit. CNS3xxx: Fix logical PCIe topology. CNS3xxx: Fix debug UART. MAINTAINERS: Add entry for the Amlogic MesonX SoCs MAINTAINERS: update ARM pxa maintainers ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks ARM: at91: fix at91sam9263ek DT mmc pinmuxing settings ARM: mvebu: Netgear RN102: Use Hardware BCH ECC ARM: Kirkwood: Fix DT based DSA. ARM: OMAP2+: make of_device_ids const ARM: omap2: make arrays containing machine compatible strings const ARM: LPC32xx: Fix reset function ARM: mvebu: Netgear RN2120: Use Hardware BCH ECC ...
2014-09-26drivers/rtc/rtc-efi.c: add missing module aliasPali Rohár1-0/+1
Without proper alias kernel module is not loaded for rtc-efi driver. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Cc: dann frazier <dannf@dannf.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-25Merge tag 'sunxi-drivers-for-3.18' of ↵Arnd Bergmann3-1/+456
git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/drivers Pull "Allwinner drivers additions for 3.18" from Maxime Ripard: Nothing major, just handling the RTC driver changes needed for the A31/A23. Signed-off-by: Arnd Bergmann <arnd@arndb.de> * tag 'sunxi-drivers-for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtc rtc: sun6i: Add sun6i RTC driver
2014-09-23Merge tag 'mvebu-fixes-3.17' of git://git.infradead.org/linux-mvebu into ↵Olof Johansson1-1/+1
next/fixes-non-critical Merge "mvebu fixes for v3.17" from Jason Cooper: - kirkwood - final driver cleanup of ARCH_KIRKWOOD removal - fix DT based DSA - mvebu - use BCH ECC for the RN2120 and RN104/2 nand chips * tag 'mvebu-fixes-3.17' of git://git.infradead.org/linux-mvebu: ARM: mvebu: Netgear RN102: Use Hardware BCH ECC ARM: Kirkwood: Fix DT based DSA. ARM: mvebu: Netgear RN2120: Use Hardware BCH ECC ARM: mvebu: Netgear RN104: Use Hardware BCH ECC cpufreq: Remove ARCH_KIRKWOOD dependency watchdog: Remove ARCH_KIRKWOOD dependency rtc: Remove ARCH_KIRKWOOD dependency leds: Remove ARCH_KIRKWOOD dependency thermal: Remove ARCH_KIRKWOOD dependency ata: Remove ARCH_KIRKWOOD dependency cpuidle: kirkwood: Remove ARCH_KIRKWOOD dependency
2014-09-19rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtcChen-Yu Tsai1-1/+1
Now that we have Kconfig options for individual sunxi platforms, let the rtc-sunxi driver depend on the platforms that actually have this hardware, sun4i and sun7i. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-09-19rtc: sun6i: Add sun6i RTC driverChen-Yu Tsai3-0/+455
This patch introduces the driver for the RTC in the Allwinner A31 and A23 SoCs. Unlike the RTC found in A10/A20 SoCs, which was part of the timer, the RTC in A31/A23 are a separate hardware block, which also contain a few controls for the RTC block hardware (a regulator and RTC block GPIO pin latches), while also having separate interrupts for the alarms. The hardware is different enough to make a different driver for it. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-09-09rtc: Remove ARCH_KIRKWOOD dependencyAndrew Lunn1-1/+1
mach-kirkwood has been removed, now that kirkwood lives in mach-mvebu. ARCH_MVEBU is sufficient. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: rtc-linux@googlegroups.com Link: https://lkml.kernel.org/r/1409417172-6846-6-git-send-email-andrew@lunn.ch Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-08-29drivers/rtc/rtc-s5m.c: re-add support for devices without irq specifiedBartlomiej Zolnierkiewicz1-7/+14
The rtc-s5m driver used to support devices without irq specified in the past. Re-add this support. The patch fixes boot for Insignal's Exynos4412 based Origen board. Error messages before the patch: ... Unable to handle kernel NULL pointer dereference at virtual address 00000094 pgd = c0004000 [00000094] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.16.0-next-20140804-00008-ga59480f-dirty #701 task: ea80f000 ti: ea882000 task.ti: ea882000 PC is at regmap_irq_get_virq+0x0/0x28 LR is at s5m_rtc_probe+0xdc/0x310 pc : [<c02574fc>] lr : [<c02de75c>] psr: 80000153 sp : ea883e48 ip : 00000000 fp : 00000000 r10: 0000000c r9 : c05de7ac r8 : eaabc600 r7 : eaa6b4d0 r6 : c0439e8c r5 : eaabc610 r4 : eab30e50 r3 : 00000000 r2 : 00000000 r1 : 0000000c r0 : 00000000 Flags: Nzcv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 4000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xea882240) Backtrace: regmap_irq_get_virq s5m_rtc_probe platform_drv_probe driver_probe_device __driver_attach bus_for_each_dev bus_add_driver driver_register do_one_initcall kernel_init_freeable kernel_init ---[ end trace a954d7f019122700 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ... Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08Merge branch 'akpm' (second patchbomb from Andrew Morton)Linus Torvalds12-52/+591
Merge more incoming from Andrew Morton: "Two new syscalls: memfd_create in "shm: add memfd_create() syscall" kexec_file_load in "kexec: implementation of new syscall kexec_file_load" And: - Most (all?) of the rest of MM - Lots of the usual misc bits - fs/autofs4 - drivers/rtc - fs/nilfs - procfs - fork.c, exec.c - more in lib/ - rapidio - Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs, fs/cramfs, fs/romfs, fs/qnx6. - initrd/initramfs work - "file sealing" and the memfd_create() syscall, in tmpfs - add pci_zalloc_consistent, use it in lots of places - MAINTAINERS maintenance - kexec feature work" * emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits) MAINTAINERS: update nomadik patterns MAINTAINERS: update usb/gadget patterns MAINTAINERS: update DMA BUFFER SHARING patterns kexec: verify the signature of signed PE bzImage kexec: support kexec/kdump on EFI systems kexec: support for kexec on panic using new system call kexec-bzImage64: support for loading bzImage using 64bit entry kexec: load and relocate purgatory at kernel load time purgatory: core purgatory functionality purgatory/sha256: provide implementation of sha256 in purgaotory context kexec: implementation of new syscall kexec_file_load kexec: new syscall kexec_file_load() declaration kexec: make kexec_segment user buffer pointer a union resource: provide new functions to walk through resources kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc() kexec: move segment verification code in a separate function kexec: rename unusebale_pages to unusable_pages kernel: build bin2c based on config option CONFIG_BUILD_BIN2C bin2c: move bin2c in scripts/basic shm: wait for pins to be released when sealing ...
2014-08-08drivers/rtc/rtc-tps65910.c: fix potential NULL-pointer dereferenceThierry Reding1-2/+2
The interrupt handler gets the driver data associated with the RTC device and doesn't check it for validity. This can cause a NULL pointer being dereferenced when and interrupt fires before the driver data was properly set up. Fix this by setting the driver data earlier (before the interrupt is requested). Signed-off-by: Thierry Reding <treding@nvidia.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08driver/rtc/class.c: check the error after rtc_read_time()Hyogi Gim1-2/+14
In rtc_suspend() and rtc_resume(), the error after rtc_read_time() is not checked. If rtc device fail to read time, we cannot guarantee the following process. Add the verification code for returned rtc_read_time() error. Signed-off-by: Hyogi Gim <hyogi.gim@lge.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08rtc: add pcf85063 supportSøren Andersen3-0/+213
Add support for the pcf85063 rtc chip. [akpm@linux-foundation.org: fix comment typo, tweak conding style] Signed-off-by: Soeren Andersen <san@rosetechnology.dk> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/rtc-isl12022.c: device tree supportStuart Longland1-0/+12
Add support for configuring the ISL12022 real-time clock via the Device tree framework. This is based on what I've seen in the related ISL12057 driver, it has been tested and works on a Technologic Systems TS-7670 device which uses a ISL12020 RTC device, my device tree looks like this: apbx@80040000 { i2c0: i2c@80058000 { pinctrl-names = "default"; pinctrl-0 = <&i2c0_pins_a>; clock-frequency = <400000>; status = "okay"; isl12022@0x6f { compatible = "isl,isl12022"; reg = <0x6f>; }; }; ... etc }; Signed-off-by: Stuart Longland <stuartl@vrt.com.au> Cc: Roman Fietze <roman.fietze@telemotive.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/rtc-pcf8563.c: add alarm supportVincent Donnefort1-4/+153
This patch adds alarm support for the NXP PCF8563 chip. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Cc: Simon Guinot <simon.guinot@sequanux.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/rtc-pcf8563.c: introduce read|write_block_dataVincent Donnefort1-26/+48
This functions allow to factorize I2C I/O operations. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Cc: Simon Guinot <simon.guinot@sequanux.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08rtc: ia64: allow other architectures to use EFI RTCMark Salter3-1/+36
Currently, the rtc-efi driver is restricted to ia64 only. Newer architectures with EFI support may want to also use that driver. This patch moves the platform device setup from ia64 into drivers/rtc and allow any architecture with CONFIG_EFI=y to use the rtc-efi driver. Signed-off-by: Mark Salter <msalter@redhat.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/interface.c: check the error after __rtc_read_time()Hyogi Gim1-0/+2
In __rtc_set_alarm(), the error after __rtc_read_time() is not checked. If rtc device fail to read time, we cannot guarantee the following process. Add the verification code for returned __rtc_read_time() error. Signed-off-by: Hyogi Gim <hyogi.gim@lge.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/rtc-efi.c: check for invalid data coming back from UEFIJan Beulich1-5/+27
In particular seeing zero in eft->month is problematic, as it results in -1 (converted to unsigned int, i.e. yielding 0xffffffff) getting passed to rtc_year_days(), where the value gets used as an array index (normally resulting in a crash). This was observed with the driver enabled on x86 on some Fujitsu system (with possibly not up to date firmware, but anyway). Perhaps efi_read_alarm() should not fail if neither enabled nor pending are set, but the returned time is invalid? Signed-off-by: Jan Beulich <jbeulich@suse.com> Reported-by: Raymund Will <rw@suse.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee, Chun-Yi <jlee@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/rtc-ds1742.c: revert "drivers/rtc/rtc-ds1742.c: remove redundant ↵Alexander Shiyan1-1/+1
of_match_ptr() helper" Commit 5516f0971793 ("drivers/rtc/rtc-ds1742.c: remove redundant of_match_ptr() helper") has description as: "'ds1742_rtc_of_match' is always compiled in. Hence the helper macro is not needed". It is not true, of_match_ptr() macro makes of_device_id parameter unused and this constant is declared with __maybe_unused attribute, so normally this variable should be discarded by linker. This patch revers this commit, since there are no reason to compile of_device_id constant for non-DT systems. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/Kconfig: add hardware dependency to rtc-moxartJean Delvare1-0/+1
The rtc-moxart driver is only useful on MOXA ART systems so it should depend on ARCH_MOXART as all other MOXA ART drivers already do. Add COMPILE_TEST as an alternative to allow for build testing on other systems. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Jonas Jensen <jonas.jensen@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/Kconfig: move DS2404 entry where it belongsJean Delvare1-9/+9
Move the DS2404 entry together with the other Dallas entries, and add Maxim so that it looks nicer (and more correct, too.) Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Sven Schnelle <svens@stackframe.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08drivers/rtc/rtc-ds1343.c: add support of nvram for maxim dallas rtc ds1343Raghavendra Ganiga1-2/+73
This is a patch to add support of nvram for maxim dallas rtc ds1343. Signed-off-by: Raghavendra Chandra Ganiga <ravi23ganiga@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-07Merge tag 'mfd-for-linus-3.17' of ↵Linus Torvalds2-36/+45
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD update from Lee Jones: "Changes to existing drivers: - checkpatch fixes throughout the subsystem - use Regmap to handle IRQs in max77686, extcon-max77693 and mc13xxx-core - use DMA in rtsx_pcr - restrict building on unsupported architectures on timberdale, cs5535 - SPI hardening in cros_ec_spi - more robust error handing in asic3, cros_ec, ab8500-debugfs, max77686 and pcf50633-core - reorder PM runtime and regulator handing during shutdown in arizona - enable wakeup in cros_ec_spi - unused variable/code clean-up in pm8921-core, cros_ec, htc-i2cpld, tps65912-spi, wm5110-tables and ab8500-debugfs - add regulator handing into suspend() in sec-core - remove pointless wrapper functions in extcon-max77693 and i2c-cros-ec-tunnel - use cross-architecture friendly data sizes in stmpe-i2c, arizona, max77686 and tps65910 - devicetree documentation updates throughout - provide power management support in max77686 - few OF clean-ups in max77686 - use manged resources in tps6105x New drivers/supported devices: - add support for s2mpu02 to sec-core - add support for Allwinner A32 to sun6i-prcm - add support for Maxim 77802 in max77686 - add support for DA9063 AD in da9063 - new driver for Intel PMICs (generic) and specifically Crystal Cove (Re-)moved drivers == - move out keyboard functionality cros_ec ==> input/keyboard/cros_ec_keyb" * tag 'mfd-for-linus-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (101 commits) MAINTAINERS: Update MFD repo location mfd: omap-usb-host: Fix improper mask use. mfd: arizona: Only free the CTRLIF_ERR IRQ if we requested it mfd: arizona: Add missing handling for ISRC3 under/overclocked mfd: wm5110: Add new interrupt register definitions mfd: arizona: Rename thermal shutdown interrupt mfd: wm5110: Add in the output done interrupts mfd: wm5110: Remove non-existant interrupts mfd: tps65912-spi: Remove unused variable mfd: htc-i2cpld: Remove unused code mfd: da9063: Add support for AD silicon variant mfd: arizona: Map MICVDD from extcon device to the Arizona core mfd: arizona: Add MICVDD to mapped regulators for wm8997 mfd: max77686: Ensure device type IDs are architecture agnostic mfd: max77686: Add Maxim 77802 PMIC support mfd: tps6105x: Use managed resources when allocating memory mfd: wm8997-tables: Suppress 'line over 80 chars' warnings mfd: kempld-core: Correct a variety of checkpatch warnings mfd: ipaq-micro: Fix coding style errors/warnings reported by checkpatch mfd: si476x-cmd: Remedy checkpatch style complains ...
2014-07-30MIPS: Alchemy: introduce helpers to access SYS register block.Manuel Lauss1-10/+8
This patch changes all absolute SYS_XY registers to offsets from the SYS block base, prefixes them with AU1000 to avoid silent failures due to changed addresses, and introduces helper functions to read/write them. No functional changes, comparing assembly of a few select functions shows no differences. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/7464/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-07-28mfd: da9063: Add support for AD silicon variantOpensource [Steve Twiss]1-17/+37
Add register definitions for DA9063 AD (0x3) silicon variant ID the ability to choose the silicon variant at run-time using regmap configuration. This patch also adds RTC support for the AD silicon changes. It adds both BB and AD support as regmap ranges and then makes the distinction between the two tables at run-time. This allows both AD and BB silicon variants to be supported at the same time. Suggested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Opensource [Steve Twiss] <stwiss.opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-07-21mfd: max77686: Convert to use regmap_irqJavier Martinez Canillas1-19/+8
By using the generic IRQ support in the Register map API, it is possible to get rid max77686-irq.c and simplify the code. Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-06-20drivers/rtc/rtc-puv3.c: remove "&dev->" for typo issue MIME-Version: 1.0Chen Gang1-1/+1
It is only a typo issue, the related commit: "1fbc4c4 drivers/rtc/rtc-puv3.c: use dev_dbg() instead of pr_debug()" The related error (for unicore32 with allmodconfig): CC [M] drivers/rtc/rtc-puv3.o drivers/rtc/rtc-puv3.c: In function 'puv3_rtc_setalarm': drivers/rtc/rtc-puv3.c:143: error: 'struct device' has no member named 'dev' Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
2014-06-20drivers/rtc/rtc-puv3.c: use dev_dbg() instead of dev_debug() for typo issueChen Gang1-1/+1
It is only a typo issue, the related commit: "1fbc4c4 drivers/rtc/rtc-puv3.c: use dev_dbg() instead of pr_debug()" The related error (unicore32 with allmodconfig): CC [M] drivers/rtc/rtc-puv3.o drivers/rtc/rtc-puv3.c: In function 'puv3_rtc_setpie': drivers/rtc/rtc-puv3.c:74: error: implicit declaration of function 'dev_debug' Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: Xuetao Guan <gxt@mprc.pku.edu.cn>
2014-06-10rtc: s5m: consolidate two device type switch statementsKrzysztof Kozlowski1-19/+8
In probe the configuration of driver for different chipsets was done in two switch (pdata->device_type) statements. Consolidate them into one switch statement to increase code readability. Additionally check the return value of regmap_irq_get_virq and exit probe on error. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-10rtc: s5m: add support for S2MPS14 RTCKrzysztof Kozlowski2-19/+86
Add support for S2MPS14 to the rtc-s5m driver. Differences in S2MPS14 (in comparison to S5M8767): - Layout of registers - Lack of century support for time and alarms (7 registers used for storing time/alarm) - Two buffer control registers: WUDR and RUDR - No register for enabling writing time - RTC interrupts are reported in main PMIC I2C device Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-10rtc: s5m: support different register layoutKrzysztof Kozlowski1-48/+109
Prepare for adding support for S2MPS14 RTC device to the rtc-s5m driver: 1. Add a map of registers used by the driver which differ between the chipsets (S5M876X and S2MPS14). 2. Move code of checking for alarm pending to separate function. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-10rtc: s5m: use shorter time of register updateKrzysztof Kozlowski1-0/+7
Set the time needed for updating alarm and time registers to 0.45 ms. The default is 7.32 ms which is too long and leads to warnings when setting alarm or time: s5m-rtc: waiting for UDR update, reached max number of retries Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-10rtc: s5m: remove undocumented time init on first bootKrzysztof Kozlowski1-30/+0
Remove the code for initializing time if this is first boot. The code for detecting first boot uses undocumented field RTC_TCON in RTC_UDR_CON register. According to S5M8767's datasheet this field is reserved. On S2MPS14 it is not documented at all. On device first boot the registers will be initialized with reset value (2000-01-01 00:00:00). The code might work on S5M8763 but still this does not look like a task for RTC driver. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-10mfd/rtc: sec/s5m: rename SEC* symbols to S5MKrzysztof Kozlowski1-33/+33
Prepare for adding support for S2MPS14 RTC device to the rtc-s5m driver: 1. Rename SEC* symbols to S5M. 2. Add S5M prefix to some of defines which are different between S5M876X and S2MPS14. This is only a rename-like patch, new code is not added. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-06Merge branch 'akpm' (patches from Andrew Morton) into nextLinus Torvalds22-224/+1838
Merge more updates from Andrew Morton: - Most of the rest of MM. This includes "mark remap_file_pages syscall as deprecated" but the actual "replace remap_file_pages syscall with emulation" is held back. I guess we'll need to work out when to pull the trigger on that one. - various minor cleanups to obscure filesystems - the drivers/rtc queue - hfsplus updates - ufs, hpfs, fatfs, affs, reiserfs - Documentation/ - signals - procfs - cpu hotplug - lib/idr.c - rapidio - sysctl - ipc updates * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (171 commits) ufs: sb mutex merge + mutex_destroy powerpc: update comments for generic idle conversion cris: update comments for generic idle conversion idle: remove cpu_idle() forward declarations nbd: zero from and len fields in NBD_CMD_DISCONNECT. mm: convert some level-less printks to pr_* MAINTAINERS: adi-buildroot-devel is moderated MAINTAINERS: add linux-api for review of API/ABI changes mm/kmemleak-test.c: use pr_fmt for logging fs/dlm/debug_fs.c: replace seq_printf by seq_puts fs/dlm/lockspace.c: convert simple_str to kstr fs/dlm/config.c: convert simple_str to kstr mm: mark remap_file_pages() syscall as deprecated mm: memcontrol: remove unnecessary memcg argument from soft limit functions mm: memcontrol: clean up memcg zoneinfo lookup mm/memblock.c: call kmemleak directly from memblock_(alloc|free) mm/mempool.c: update the kmemleak stack trace for mempool allocations lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations mm: introduce kmemleak_update_trace() mm/kmemleak.c: use %u to print ->checksum ...
2014-06-06drivers/rtc/rtc-pxa.c: 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>
2014-06-06drivers/rtc/rtc-sa1100.c: 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>
2014-06-06drivers/rtc/rtc-omap.c: enable RTC_IRQWAKEEN bits when Alarm is setLokesh Vutla1-34/+33
When RTC CLKTRCTRL bit is configured in HW_AUTO, module goes to sleep in IDLE state. The Alarm SWakeup event can be used to wakeup the RTC when it is in IDLE state. In order to do so, the alarm needs to be set and enabled before RTC enters the IDLE state. Also the wakeup generation for alarm/timer event needs to be set (bits [1:0] in RTC_IRQWAKEEN register). Currently RTC_IRQWAKEEN bits are set only in suspend/resume paths. With this ALARM interrupts are not generated when it enters IDLE state. So programming the RTC_IRQWAKEEN bits when ever ALARM is set. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-06rtc: rtc-at91rm9200: fix infinite wait for ACKUPD irqBoris BREZILLON1-2/+14
The rtc user must wait at least 1 sec between each time/calandar update (see atmel's datasheet chapter "Updating Time/Calendar"). Use the 1Hz interrupt to update the at91_rtc_upd_rdy flag and wait for the at91_rtc_wait_upd_rdy event if the rtc is not ready. This patch fixes a deadlock in an uninterruptible wait when the RTC is updated more than once every second. AFAICT the bug is here from the beginning, but I think we should at least backport this fix to 3.10 and the following longterm and stable releases. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Reported-by: Bryan Evenson <bevenson@melinkcorp.com> Tested-by: Bryan Evenson <bevenson@melinkcorp.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-06drivers/rtc/rtc-hym8563.c: add optional clock-output-names propertyHeiko Stuebner1-0/+3
This enables the setting of a custom clock name for the clock provided by the hym8563 rtc. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-06drivers/rtc/rtc-bfin.c: do not abort when requesting irq failsMike Frysinger1-9/+7
The RTC framework does not let you return an error once a call to devm_rtc_device_register has succeeded. Avoid doing that when the IRQ request fails as we can still support reading/writing the clock without the IRQ. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reported-by: Ales Novak <alnovak@suse.cz> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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