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2021-07-20mfd: cpcap: Fix cpcap dmamask not set warningsTony Lindgren
[ Upstream commit 0b7cbe811ca524295ea43d9a4d73d3427e419c54 ] We have started to get a bunch of pointless dmamask not set warnings that makes the output of dmesg -l err,warn hard to read with many extra warnings: cpcap-regulator cpcap-regulator.0: DMA mask not set cpcap_adc cpcap_adc.0: DMA mask not set cpcap_battery cpcap_battery.0: DMA mask not set cpcap-charger cpcap-charger.0: DMA mask not set cpcap-pwrbutton cpcap-pwrbutton.0: DMA mask not set cpcap-led cpcap-led.0: DMA mask not set cpcap-led cpcap-led.1: DMA mask not set cpcap-led cpcap-led.2: DMA mask not set cpcap-led cpcap-led.3: DMA mask not set cpcap-led cpcap-led.4: DMA mask not set cpcap-rtc cpcap-rtc.0: DMA mask not set cpcap-usb-phy cpcap-usb-phy.0: DMA mask not set This seems to have started with commit 4d8bde883bfb ("OF: Don't set default coherent DMA mask"). We have the parent SPI controller use DMA, while CPCAP driver and it's children do not. For audio, the DMA is handled over I2S bus with the McBSP driver. Cc: Carl Philipp Klemm <philipp@uvos.xyz> Cc: Ivan Jelincic <parazyd@dyne.org> Cc: Merlijn Wajer <merlijn@wizzup.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Sebastian Reichel <sre@kernel.org> Cc: Sicelo A. Mhlongo <absicsz@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20mfd: da9052/stmpe: Add and modify MODULE_DEVICE_TABLEZou Wei
[ Upstream commit 4700ef326556ed74aba188f12396740a8c1c21dd ] This patch adds/modifies MODULE_DEVICE_TABLE definition which generates correct modalias for automatic loading of this driver when it is built as an external module. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zou Wei <zou_wei@huawei.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14mfd: stm32-timers: Avoid clearing auto reload registerFabrice Gasnier
[ Upstream commit 4917e498c6894ba077867aff78f82cffd5ffbb5c ] The ARR register is cleared unconditionally upon probing, after the maximum value has been read. This initial condition is rather not intuitive, when considering the counter child driver. It rather expects the maximum value by default: - The counter interface shows a zero value by default for 'ceiling' attribute. - Enabling the counter without any prior configuration makes it doesn't count. The reset value of ARR register is the maximum. So Choice here is to backup it, and restore it then, instead of clearing its value. It also fixes the initial condition seen by the counter driver. Fixes: d0f949e220fd ("mfd: Add STM32 Timers driver") Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-11mfd: arizona: Fix rumtime PM imbalance on errorDinghao Liu
[ Upstream commit fe6df2b48043bbe1e852b2320501d3b169363c35 ] pm_runtime_get_sync() will increase the rumtime PM counter even it returns an error. Thus a pairing decrement is needed to prevent refcount leak. Fix this by replacing this API with pm_runtime_resume_and_get(), which will not change the runtime PM counter on error. Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()Dan Carpenter
[ Upstream commit 26783d74cc6a440ee3ef9836a008a697981013d0 ] The "req" struct is always added to the "wm831x->auxadc_pending" list, but it's only removed from the list on the success path. If a failure occurs then the "req" struct is freed but it's still on the list, leading to a use after free. Fixes: 78bb3688ea18 ("mfd: Support multiple active WM831x AUXADC conversions") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04mfd: bd9571mwv: Use devm_mfd_add_devices()Yoshihiro Shimoda
[ Upstream commit c58ad0f2b052b5675d6394e03713ee41e721b44c ] To remove mfd devices when unload this driver, should use devm_mfd_add_devices() instead. Fixes: d3ea21272094 ("mfd: Add ROHM BD9571MWV-M MFD PMIC driver") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-18mfd: sprd: Add wakeup capability for PMIC IRQBaolin Wang
commit a75bfc824a2d33f57ebdc003bfe6b7a9e11e9cb9 upstream. When changing to use suspend-to-idle to save power, the PMIC irq can not wakeup the system due to lack of wakeup capability, which will cause the sub-irqs (such as power key) of the PMIC can not wake up the system. Thus we can add the wakeup capability for PMIC irq to solve this issue, as well as removing the IRQF_NO_SUSPEND flag to allow PMIC irq to be a wakeup source. Reported-by: Chunyan Zhang <zhang.lyra@gmail.com> Signed-off-by: Baolin Wang <baolin.wang7@gmail.com> Tested-by: Chunyan Zhang <chunyan.zhang@unisoc.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-29mfd: sm501: Fix leaks in probe()Dan Carpenter
[ Upstream commit 8ce24f8967df2836b4557a23e74dc4bb098249f1 ] This code should clean up if sm501_init_dev() fails. Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01mfd: mfd-core: Protect against NULL call-back function pointerLee Jones
[ Upstream commit b195e101580db390f50b0d587b7f66f241d2bc88 ] If a child device calls mfd_cell_{en,dis}able() without an appropriate call-back being set, we are likely to encounter a panic. Avoid this by adding suitable checking. Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-03mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDsAndy Shevchenko
[ Upstream commit bb7fcad48d3804d814b97c785514e2d1657e157f ] Intel Tiger Lake PCH-H has the same LPSS than Intel Broxton. Add the new IDs to the list of supported devices. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-03mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDsAndy Shevchenko
[ Upstream commit 3ea2e4eab64cefa06055bb0541fcdedad4b48565 ] Intel Emmitsburg PCH has the same LPSS than Intel Ice Lake. Add the new IDs to the list of supported devices. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-21mfd: dln2: Run event handler loop under spinlockAndy Shevchenko
[ Upstream commit 3d858942250820b9adc35f963a257481d6d4c81d ] The event handler loop must be run with interrupts disabled. Otherwise we will have a warning: [ 1970.785649] irq 31 handler lineevent_irq_handler+0x0/0x20 enabled interrupts [ 1970.792739] WARNING: CPU: 0 PID: 0 at kernel/irq/handle.c:159 __handle_irq_event_percpu+0x162/0x170 [ 1970.860732] RIP: 0010:__handle_irq_event_percpu+0x162/0x170 ... [ 1970.946994] Call Trace: [ 1970.949446] <IRQ> [ 1970.951471] handle_irq_event_percpu+0x2c/0x80 [ 1970.955921] handle_irq_event+0x23/0x43 [ 1970.959766] handle_simple_irq+0x57/0x70 [ 1970.963695] generic_handle_irq+0x42/0x50 [ 1970.967717] dln2_rx+0xc1/0x210 [dln2] [ 1970.971479] ? usb_hcd_unmap_urb_for_dma+0xa6/0x1c0 [ 1970.976362] __usb_hcd_giveback_urb+0x77/0xe0 [ 1970.980727] usb_giveback_urb_bh+0x8e/0xe0 [ 1970.984837] tasklet_action_common.isra.0+0x4a/0xe0 ... Recently xHCI driver switched to tasklets in the commit 36dc01657b49 ("usb: host: xhci: Support running urb giveback in tasklet context"). The handle_irq_event_* functions are expected to be called with interrupts disabled and they rightfully complain here because we run in tasklet context with interrupts enabled. Use a event spinlock to protect event handler from being interrupted. Note, that there are only two users of this GPIO and ADC drivers and both of them are using generic_handle_irq() which makes above happen. Fixes: 338a12814297 ("mfd: Add support for Diolan DLN-2 devices") Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-21mfd: arizona: Ensure 32k clock is put on driver unbind and errorCharles Keepax
[ Upstream commit ddff6c45b21d0437ce0c85f8ac35d7b5480513d7 ] Whilst it doesn't matter if the internal 32k clock register settings are cleaned up on exit, as the part will be turned off losing any settings, hence the driver hasn't historially bothered. The external clock should however be cleaned up, as it could cause clocks to be left on, and will at best generate a warning on unbind. Add clean up on both the probe error path and unbind for the 32k clock. Fixes: cdd8da8cc66b ("mfd: arizona: Add gating of external MCLKn clocks") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24mfd: stmfx: Disable IRQ in suspend to avoid spurious interruptAmelie Delaunay
[ Upstream commit 97eda5dcc2cde5dcc778bef7a9344db3b6bf8ef5 ] When STMFX supply is stopped, spurious interrupt can occur. To avoid that, disable the interrupt in suspend before disabling the regulator and re-enable it at the end of resume. Fixes: 06252ade9156 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver") Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24mfd: stmfx: Fix stmfx_irq_init error pathAmelie Delaunay
[ Upstream commit 60c2c4bcb9202acad4cc26af20b44b6bd7874f7b ] In case the interrupt signal can't be configured, IRQ domain needs to be removed. Fixes: 06252ade9156 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver") Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24mfd: stmfx: Reset chip on resume as supply was disabledAmelie Delaunay
[ Upstream commit e583649d87ec090444aa5347af0927cd6e8581ae ] STMFX supply is disabled during suspend. To avoid a too early access to the STMFX firmware on resume, reset the chip and wait for its firmware to be loaded. Fixes: 06252ade9156 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver") Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24mfd: wm8994: Fix driver operation if loaded as modulesMarek Szyprowski
[ Upstream commit d4f9b5428b53dd67f49ee8deed8d4366ed6b1933 ] WM8994 chip has built-in regulators, which might be used for chip operation. They are controlled by a separate wm8994-regulator driver, which should be loaded before this driver calls regulator_get(), because that driver also provides consumer-supply mapping for the them. If that driver is not yet loaded, regulator core substitute them with dummy regulator, what breaks chip operation, because the built-in regulators are never enabled. Fix this by annotating this driver with MODULE_SOFTDEP() "pre" dependency to "wm8994_regulator" module. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-05-10mfd: intel-lpss: Use devm_ioremap_uc for MMIOTuowen Zhao
commit a8ff78f7f773142eb8a8befe5a95dd6858ebd635 upstream. Some BIOS erroneously specifies write-combining BAR for intel-lpss-pci in MTRR. This will cause the system to hang during boot. If possible, this bug could be corrected with a firmware update. This patch use devm_ioremap_uc to overwrite/ignore the MTRR settings by forcing the use of strongly uncachable pages for intel-lpss. The BIOS bug is present on Dell XPS 13 7390 2-in-1: [ 0.001734] 5 base 4000000000 mask 6000000000 write-combining 4000000000-7fffffffff : PCI Bus 0000:00 4000000000-400fffffff : 0000:00:02.0 (i915) 4010000000-4010000fff : 0000:00:15.0 (intel-lpss-pci) Link: https://bugzilla.kernel.org/show_bug.cgi?id=203485 Cc: <stable@vger.kernel.org> # v4.19+ Tested-by: AceLan Kao <acelan.kao@canonical.com> Signed-off-by: Tuowen Zhao <ztuowen@gmail.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Roman Gilg <subdiff@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-17mfd: dln2: Fix sanity checking for endpointsAndy Shevchenko
[ Upstream commit fb945c95a482200876993977008b67ea658bd938 ] While the commit 2b8bd606b1e6 ("mfd: dln2: More sanity checking for endpoints") tries to harden the sanity checks it made at the same time a regression, i.e. mixed in and out endpoints. Obviously it should have been not tested on real hardware at that time, but unluckily it didn't happen. So, fix above mentioned typo and make device being enumerated again. While here, introduce an enumerator for magic values to prevent similar issue to happen in the future. Fixes: 2b8bd606b1e6 ("mfd: dln2: More sanity checking for endpoints") Cc: Oliver Neukum <oneukum@suse.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-14mfd: max77650: Select REGMAP_IRQ in KconfigBartosz Golaszewski
commit cb7a374a5e7a5af3f8c839f74439193add6d0589 upstream. MAX77650 MFD driver uses regmap_irq API but doesn't select the required REGMAP_IRQ option in Kconfig. This can cause the following build error if regmap irq is not enabled implicitly by someone else: ld: drivers/mfd/max77650.o: in function `max77650_i2c_probe': max77650.c:(.text+0xcb): undefined reference to `devm_regmap_add_irq_chip' ld: max77650.c:(.text+0xdb): undefined reference to `regmap_irq_get_domain' make: *** [Makefile:1079: vmlinux] Error 1 Fix it by adding the missing option. Fixes: d0f60334500b ("mfd: Add new driver for MAX77650 PMIC") Reported-by: Paul Gazzillo <paul@pgazz.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11mfd: rn5t618: Mark ADC control register volatileAndreas Kemnade
commit 2f3dc25c0118de03a00ddc88b61f7216854f534d upstream. There is a bit which gets cleared after conversion. Fixes: 9bb9e29c78f8 ("mfd: Add Ricoh RN5T618 PMIC core driver") Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11mfd: da9062: Fix watchdog compatible stringMarco Felsch
commit 1112ba02ff1190ca9c15a912f9269e54b46d2d82 upstream. The watchdog driver compatible is "dlg,da9062-watchdog" and not "dlg,da9062-wdt". Therefore the mfd-core can't populate the of_node and fwnode. As result the watchdog driver can't parse the devicetree. Fixes: 9b40b030c4ad ("mfd: da9062: Supply core driver") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatileSamuel Holland
commit dc91c3b6fe66a13ac76f6cb3b2100c0779cd3350 upstream. On AXP288 and newer PMICs, bit 7 of AXP20X_VBUS_IPSOUT_MGMT can be set to prevent using the VBUS input. However, when the VBUS unplugged and plugged back in, the bit automatically resets to zero. We need to set the register as volatile to prevent regmap from caching that bit. Otherwise, regcache will think the bit is already set and not write the register. Fixes: cd53216625a0 ("mfd: axp20x: Fix axp288 volatile ranges") Cc: stable@vger.kernel.org Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11mfd: dln2: More sanity checking for endpointsOliver Neukum
commit 2b8bd606b1e60ca28c765f69c1eedd7d2a2e9dca upstream. It is not enough to check for the number of endpoints. The types must also be correct. Reported-and-tested-by: syzbot+48a2851be24583b864dc@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum <oneukum@suse.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-01mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDsAndy Shevchenko
[ Upstream commit dd047dce3a6f5233b98e792e2287cc549da35879 ] Intel Comet Lake PCH-H has the same LPSS than Intel Cannon Lake. Add the new IDs to the list of supported devices. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-26mfd: intel-lpss: Add default I2C device properties for Gemini LakeJarkko Nikula
commit 3f31bc67e4dc6a555341dffefe328ddd58e8b431 upstream. It turned out Intel Gemini Lake doesn't use the same I2C timing parameters as Broxton. I got confirmation from the Windows team that Gemini Lake systems should use updated timing parameters that differ from those used in Broxton based systems. Fixes: f80e78aa11ad ("mfd: intel-lpss: Add Intel Gemini Lake PCI IDs") Tested-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-24mfd: mt6397: Fix probe after changing mt6397-coreFrank Wunderlich
Part 3 from this series [1] was not merged due to wrong splitting and breaks mt6323 pmic on bananapi-r2 dmesg prints this line and at least switch is not initialized on bananapi-r2 mt6397 1000d000.pwrap:mt6323: unsupported chip: 0x0 this patch contains only the probe-changes and chip_data structs from original part 3 by Hsin-Hsiung Wang [1] https://patchwork.kernel.org/project/linux-mediatek/list/?series=164155 Fixes: a4872e80ce7d ("mfd: mt6397: Extract IRQ related code from core driver") Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-29Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal Pull thermal SoC updates from Eduardo Valentin: "This is a really small pull in the midst of a lot of pending patches. We are in the middle of restructuring how we are maintaining the thermal subsystem, as per discussion in our last LPC. For now, I am sending just some changes that were pending in my tree. Looking forward to get a more streamlined process in the next merge window" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: thermal: db8500: Rewrite to be a pure OF sensor thermal: db8500: Use dev helper variable thermal: db8500: Finalize device tree conversion thermal: thermal_mmio: remove some dead code
2019-09-24thermal: db8500: Finalize device tree conversionLinus Walleij
At some point there was an attempt to convert the DB8500 thermal sensor to device tree: a probe path was added and the device tree was augmented for the Snowball board. The switchover was never completed: instead the thermal devices came from from the PRCMU MFD device and the probe on the Snowball was confused as another set of configuration appeared from the device tree. Move over to a device-tree only approach, as we fixed up the device trees. Cc: Vincent Guittot <vincent.guittot@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-09-23Merge tag 'mfd-next-5.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for Merrifield Basin Cove PMIC New Device Support: - Add support for Intel Tiger Lake to Intel LPSS PCI - Add support for Intel Sky Lake to Intel LPSS PCI - Add support for ST-Ericsson DB8520 to DB8500 PRCMU New Functionality: - Add RTC and PWRC support to MT6323 Fix-ups: - Clean-up include files; davinci_voicecodec, asic3, sm501, mt6397 - Ignore return values from debugfs_create*(); ab3100-*, ab8500-debugfs, aat2870-core - Device Tree changes; rn5t618, mt6397 - Use new I2C API; tps80031, 88pm860x-core, ab3100-core, bcm590xx, da9150-core, max14577, max77693, max77843, max8907, max8925-i2c, max8997, max8998, palmas, twl-core, - Remove obsolete code; da9063, jz4740-adc - Simplify semantics; timberdale, htc-i2cpld - Add 'fall-through' tags; omap-usb-host, db8500-prcmu - Remove superfluous prints; ab8500-debugfs, db8500-prcmu, fsl-imx25-tsadc, intel_soc_pmic_bxtwc, qcom_rpm, sm501 - Trivial rename/whitespace/typo fixes; mt6397-core, MAINTAINERS - Reorganise code structure; mt6397-* - Improve code consistency; intel-lpss - Use MODULE_SOFTDEP() helper; intel-lpss - Use DEFINE_RES_*() helpers; mt6397-core Bug Fixes: - Clean-up resources; max77620 - Prevent input events being dropped on resume; intel-lpss-pci - Prevent sleeping in IRQ context; ezx-pcap" * tag 'mfd-next-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (48 commits) mfd: mt6323: Add MT6323 RTC and PWRC mfd: mt6323: Replace boilerplate resource code with DEFINE_RES_* macros mfd: mt6397: Add mutex include dt-bindings: mfd: mediatek: Add MT6323 Power Controller dt-bindings: mfd: mediatek: Update RTC to include MT6323 dt-bindings: mfd: mediatek: mt6397: Change to relative paths mfd: db8500-prcmu: Support the higher DB8520 ARMSS mfd: intel-lpss: Use MODULE_SOFTDEP() instead of implicit request mfd: htc-i2cpld: Drop check because i2c_unregister_device() is NULL safe mfd: sm501: Include the GPIO driver header mfd: intel-lpss: Add Intel Skylake ACPI IDs mfd: intel-lpss: Consistently use GENMASK() mfd: Add support for Merrifield Basin Cove PMIC mfd: ezx-pcap: Replace mutex_lock with spin_lock mfd: asic3: Include the right header MAINTAINERS: altera-sysmgr: Fix typo in a filepath mfd: mt6397: Extract IRQ related code from core driver mfd: mt6397: Rename macros to something more readable mfd: Remove dev_err() usage after platform_get_irq() mfd: db8500-prcmu: Mark expected switch fall-throughs ...
2019-09-22Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds
Pull MIPS updates from Paul Burton: "Main MIPS changes: - boot_mem_map is removed, providing a nice cleanup made possible by the recent removal of bootmem. - Some fixes to atomics, in general providing compiler barriers for smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs or MIPS32 systems using cmpxchg64(). - Conversion to the new generic VDSO infrastructure courtesy of Vincenzo Frascino. - Removal of undefined behavior in set_io_port_base(), fixing the behavior of some MIPS kernel configurations when built with recent clang versions. - Initial MIPS32 huge page support, functional on at least Ingenic SoCs. - pte_special() is now supported for some configurations, allowing among other things generic fast GUP to be used. - Miscellaneous fixes & cleanups. And platform specific changes: - Major improvements to Ingenic SoC support from Paul Cercueil, mostly enabled by the inclusion of the new TCU (timer-counter unit) drivers he's spent a very patient year or so working on. Plus some fixes for X1000 SoCs from Zhou Yanjie. - Netgear R6200 v1 systems are now supported by the bcm47xx platform. - DT updates for BMIPS, Lantiq & Microsemi Ocelot systems" * tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits) MIPS: Detect bad _PFN_SHIFT values MIPS: Disable pte_special() for MIPS32 with RiXi MIPS: ralink: deactivate PCI support for SOC_MT7621 mips: compat: vdso: Use legacy syscalls as fallback MIPS: Drop Loongson _CACHE_* definitions MIPS: tlbex: Remove cpu_has_local_ebase MIPS: tlbex: Simplify r3k check MIPS: Select R3k-style TLB in Kconfig MIPS: PCI: refactor ioc3 special handling mips: remove ioremap_cachable mips/atomic: Fix smp_mb__{before,after}_atomic() mips/atomic: Fix loongson_llsc_mb() wreckage mips/atomic: Fix cmpxchg64 barriers MIPS: Octeon: remove duplicated include from dma-octeon.c firmware: bcm47xx_nvram: Allow COMPILE_TEST firmware: bcm47xx_nvram: Correct size_t printf format MIPS: Treat Loongson Extensions as ASEs MIPS: Remove dev_err() usage after platform_get_irq() MIPS: dts: mscc: describe the PTP ready interrupt MIPS: dts: mscc: describe the PTP register range ...
2019-09-19Merge tag 'tag-chrome-platform-for-v5.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Benson Leung: "CrOS EC / MFD Migration: - Move cros_ec core driver from mfd into chrome platform. Wilco EC: - Add batt_ppid_info command to Wilco telemetry driver. CrOS EC: - cros_ec_rpmsg : Add support to inform EC of suspend/resume status - cros_ec_rpmsg : Fix race condition on probe failed - cros_ec_chardev : Add a poll handler to receive MKBP events Misc: - bugfixes in cros_usbpd_logger and cros_ec_ishtp" * tag 'tag-chrome-platform-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: cros_usbpd_logger: null check create_singlethread_workqueue platform/chrome: cros_ec_chardev: Add a poll handler to receive MKBP events platform/chrome: cros_ec_rpmsg: Fix race with host command when probe failed platform/chrome: chromeos_tbmc: Report wake events mfd: cros_ec: Use mfd_add_hotplug_devices() helper mfd: cros_ec: Add convenience struct to define autodetectable CrOS EC subdevices mfd: cros_ec: Add convenience struct to define dedicated CrOS EC MCUs mfd: cros_ec: Use kzalloc and cros_ec_cmd_xfer_status helper mfd / platform: cros_ec: Reorganize platform and mfd includes mfd / platform: cros_ec: Rename config to a better name mfd: cros_ec: Switch to use the new cros-ec-chardev driver mfd / platform: cros_ec: Miscellaneous character device to talk with the EC mfd / platform: cros_ec: Move cros-ec core driver out from MFD mfd / platform: cros_ec: Handle chained ECs as platform devices platform/chrome: cros_ec_rpmsg: Add host command AP sleep state support platform/chrome: chromeos_laptop: drop checks of NULL-safe functions platform/chrome: wilco_ec: Add batt_ppid_info command to telemetry driver
2019-09-18Merge tag 'usb-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB updates from Greg KH: "Here is the big set of USB patches for 5.4-rc1. Two major chunks of code are moving out of the tree and into the staging directory, uwb and wusb (wireless USB support), because there are no devices that actually use this protocol anymore, and what we have today probably doesn't work at all given that the maintainers left many many years ago. So move it to staging where it will be removed in a few releases if no one screams. Other than that, lots of little things. The usual gadget and xhci and usb serial driver updates, along with a bunch of sysfs file cleanups due to the driver core changes to support that. Nothing really major, just constant forward progress. All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (159 commits) USB: usbcore: Fix slab-out-of-bounds bug during device reset usb: cdns3: Remove redundant dev_err call in cdns3_probe() USB: rio500: Fix lockdep violation USB: rio500: simplify locking usb: mtu3: register a USB Role Switch for dual role mode usb: common: add USB GPIO based connection detection driver usb: common: create Kconfig file usb: roles: get usb-role-switch from parent usb: roles: Add fwnode_usb_role_switch_get() function device connection: Add fwnode_connection_find_match() usb: roles: Introduce stubs for the exiting functions in role.h dt-bindings: usb: mtu3: add properties about USB Role Switch dt-bindings: usb: add binding for USB GPIO based connection detection driver dt-bindings: connector: add optional properties for Type-B dt-binding: usb: add usb-role-switch property usbip: Implement SG support to vhci-hcd and stub driver usb: roles: intel: Enable static DRD mode for role switch xhci-ext-caps.c: Add property to disable Intel SW switch usb: dwc3: remove generic PHY calibrate() calls usb: core: phy: add support for PHY calibration ...
2019-09-18Merge tag 'driver-core-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here is the big driver core update for 5.4-rc1. There was a bit of a churn in here, with a number of core and OF platform patches being added to the tree, and then after much discussion and review and a day-long in-person meeting, they were decided to be reverted and a new set of patches is currently being reviewed on the mailing list. Other than that churn, there are two "persistent" branches in here that other trees will be pulling in as well during the merge window. One branch to add support for drivers to have the driver core automatically add sysfs attribute files when a driver is bound to a device so that the driver doesn't have to manually do it (and then clean it up, as it always gets it wrong). There's another branch in here for generic lookup helpers for the driver core that lots of busses are starting to use. That's the majority of the non-driver-core changes in this patch series. There's also some on-going debugfs file creation cleanup that has been slowly happening over the past few releases, with the goal to hopefully get that done sometime next year. All of these have been in linux-next for a while now with no reported issues" [ Note that the above-mentioned generic lookup helpers branch was already brought in by the LED merge (commit 4feaab05dc1e) that had shared it. Also note that that common branch introduced an i2c bug due to a bad conversion, which got fixed here. - Linus ] * tag 'driver-core-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (49 commits) coccinelle: platform_get_irq: Fix parse error driver-core: add include guard to linux/container.h sysfs: add BIN_ATTR_WO() macro driver core: platform: Export platform_get_irq_optional() hwmon: pwm-fan: Use platform_get_irq_optional() driver core: platform: Introduce platform_get_irq_optional() Revert "driver core: Add support for linking devices during device addition" Revert "driver core: Add edit_links() callback for drivers" Revert "of/platform: Add functional dependency link from DT bindings" Revert "driver core: Add sync_state driver/bus callback" Revert "of/platform: Pause/resume sync state during init and of_platform_populate()" Revert "of/platform: Create device links for all child-supplier depencencies" Revert "of/platform: Don't create device links for default busses" Revert "of/platform: Fix fn definitons for of_link_is_valid() and of_link_property()" Revert "of/platform: Fix device_links_supplier_sync_state_resume() warning" Revert "of/platform: Disable generic device linking code for PowerPC" devcoredump: fix typo in comment devcoredump: use memory_read_from_buffer of/platform: Disable generic device linking code for PowerPC device.h: Fix warnings for mismatched parameter names in comments ...
2019-09-17Merge tag 'leds-for-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED updates from Jacek Anaszewski: "In this cycle we've finally managed to contribute the patch set sorting out LED naming issues. Besides that there are many changes scattered among various LED class drivers and triggers. LED naming related improvements: - add new 'function' and 'color' fwnode properties and deprecate 'label' property which has been frequently abused for conveying vendor specific names that have been available in sysfs anyway - introduce a set of standard LED_FUNCTION* definitions - introduce a set of standard LED_COLOR_ID* definitions - add a new {devm_}led_classdev_register_ext() API with the capability of automatic LED name composition basing on the properties available in the passed fwnode; the function is backwards compatible in a sense that it uses 'label' data, if present in the fwnode, for creating LED name - add tools/leds/get_led_device_info.sh script for retrieving LED vendor, product and bus names, if applicable; it also performs basic validation of an LED name - update following drivers and their DT bindings to use the new LED registration API: - leds-an30259a, leds-gpio, leds-as3645a, leds-aat1290, leds-cr0014114, leds-lm3601x, leds-lm3692x, leds-lp8860, leds-lt3593, leds-sc27xx-blt Other LED class improvements: - replace {devm_}led_classdev_register() macros with inlines - allow to call led_classdev_unregister() unconditionally - switch to use fwnode instead of be stuck with OF one LED triggers improvements: - led-triggers: - fix dereferencing of null pointer - fix a memory leak bug - ledtrig-gpio: - GPIO 0 is valid Drop superseeded apu2/3 support from leds-apu since for apu2+ a newer, more complete driver exists, based on a generic driver for the AMD SOCs gpio-controller, supporting LEDs as well other devices: - drop profile field from priv data - drop iosize field from priv data - drop enum_apu_led_platform_types - drop superseeded apu2/3 led support - add pr_fmt prefix for better log output - fix error message on probing failure Other misc fixes and improvements to existing LED class drivers: - leds-ns2, leds-max77650: - add of_node_put() before return - leds-pwm, leds-is31fl32xx: - use struct_size() helper - leds-lm3697, leds-lm36274, leds-lm3532: - switch to use fwnode_property_count_uXX() - leds-lm3532: - fix brightness control for i2c mode - change the define for the fs current register - fixes for the driver for stability - add full scale current configuration - dt: Add property for full scale current. - avoid potentially unpaired regulator calls - move static keyword to the front of declarations - fix optional led-max-microamp prop error handling - leds-max77650: - add of_node_put() before return - add MODULE_ALIAS() - Switch to fwnode property API - leds-as3645a: - fix misuse of strlcpy - leds-netxbig: - add of_node_put() in netxbig_leds_get_of_pdata() - remove legacy board-file support - leds-is31fl319x: - simplify getting the adapter of a client - leds-ti-lmu-common: - fix coccinelle issue - move static keyword to the front of declaration - leds-syscon: - use resource managed variant of device register - leds-ktd2692: - fix a typo in the name of a constant - leds-lp5562: - allow firmware files up to the maximum length - leds-an30259a: - fix typo - leds-pca953x: - include the right header" * tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (72 commits) leds: lm3532: Fix optional led-max-microamp prop error handling led: triggers: Fix dereferencing of null pointer leds: ti-lmu-common: Move static keyword to the front of declaration leds: lm3532: Move static keyword to the front of declarations leds: trigger: gpio: GPIO 0 is valid leds: pwm: Use struct_size() helper leds: is31fl32xx: Use struct_size() helper leds: ti-lmu-common: Fix coccinelle issue in TI LMU leds: lm3532: Avoid potentially unpaired regulator calls leds: syscon: Use resource managed variant of device register leds: Replace {devm_}led_classdev_register() macros with inlines leds: Allow to call led_classdev_unregister() unconditionally leds: lm3532: Add full scale current configuration dt: lm3532: Add property for full scale current. leds: lm3532: Fixes for the driver for stability leds: lm3532: Change the define for the fs current register leds: lm3532: Fix brightness control for i2c mode leds: Switch to use fwnode instead of be stuck with OF one leds: max77650: Switch to fwnode property API led: triggers: Fix a memory leak bug ...
2019-09-03Merge generic_lookup_helpers into usb-nextGreg Kroah-Hartman
The lookup helpers are needed here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-03mfd: don't select DMA_DECLARE_COHERENT for the sm501 and tc6393xb driversChristoph Hellwig
Now that these drivers use the usb localmem pool there is no need to select DMA_DECLARE_COHERENT. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20190903084615.19161-7-hch@lst.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-02mfd: cros_ec: Use mfd_add_hotplug_devices() helperEnric Balletbo i Serra
Use mfd_add_hotplug_devices() helper to register the subdevices. The helper allows us to reduce the boiler plate and also registers the subdevices in the same way as used in other functions used in this files. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: cros_ec: Add convenience struct to define autodetectable CrOS EC subdevicesEnric Balletbo i Serra
The CrOS EC is gaining lots of subdevices that are autodetectable by sending the EC_FEATURE_GET_CMD, it takes fair amount of boiler plate code to add those devices. So, add a struct that can be used to quickly add new subdevices without having to duplicate code. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: cros_ec: Add convenience struct to define dedicated CrOS EC MCUsEnric Balletbo i Serra
With the increasing use of dedicated CrOS EC MCUs, it takes a fair amount of boiler plate code to add those devices, add a struct that can be used to specify a dedicated CrOS EC MCU so we can just add a new item to it to define a new dedicated MCU. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: cros_ec: Use kzalloc and cros_ec_cmd_xfer_status helperEnric Balletbo i Serra
This patch makes use of cros_ec_cmd_xfer_status() instead of cros_ec_cmd_xfer() so we can remove some redundant code. It also uses kzalloc instead of kmalloc so we can remove more redundant code. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd / platform: cros_ec: Reorganize platform and mfd includesEnric Balletbo i Serra
There is a bit of mess between cros-ec mfd includes and platform includes. For example, we have a linux/mfd/cros_ec.h include that exports the interface implemented in platform/chrome/cros_ec_proto.c. Or we have a linux/mfd/cros_ec_commands.h file that is non related to the multifunction device (in the sense that is not exporting any function of the mfd device). This causes crossed includes between mfd and platform/chrome subsystems and makes the code difficult to read, apart from creating 'curious' situations where a platform/chrome driver includes a linux/mfd/cros_ec.h file just to get the exported functions that are implemented in another platform/chrome driver. In order to have a better separation on what the cros-ec multifunction driver does and what the cros-ec core provides move and rework the affected includes doing: - Move cros_ec_commands.h to include/linux/platform_data/cros_ec_commands.h - Get rid of the parts that are implemented in the platform/chrome/cros_ec_proto.c driver from include/linux/mfd/cros_ec.h to a new file include/linux/platform_data/cros_ec_proto.h - Update all the drivers with the new includes, so - Drivers that only need to know about the protocol include - linux/platform_data/cros_ec_proto.h - linux/platform_data/cros_ec_commands.h - Drivers that need to know about the cros-ec mfd device also include - linux/mfd/cros_ec.h Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Series changes: 3 - Fix dereferencing pointer to incomplete type 'struct cros_ec_dev' (lkp) Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd / platform: cros_ec: Rename config to a better nameEnric Balletbo i Serra
The cros-ec-dev is a multifunction device that now doesn't implement any chardev communication interface. MFD_CROS_EC_CHARDEV doesn't look a good name to describe that device and can cause confusion. Hence rename it to CROS_EC_DEV. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: cros_ec: Switch to use the new cros-ec-chardev driverEnric Balletbo i Serra
With the purpose of remove the things that far extends the bounds of what a MFD was designed to do, instantiate the new platform misc cros-ec-chardev driver and get rid of all the unneeded code. After this patch the misc chardev driver is a sub-device of the MFD, and all the new file operations should be implemented there. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd / platform: cros_ec: Miscellaneous character device to talk with the ECEnric Balletbo i Serra
That's a driver to talk with the ChromeOS Embedded Controller via a miscellaneous character device, it creates an entry in /dev for every instance and implements basic file operations for communicating with the Embedded Controller with an userspace application. The API is moved to the uapi folder, which is supposed to contain the user space API of the kernel. Note that this will replace current character device interface implemented in the cros-ec-dev driver in the MFD subsystem. The idea is to move all the functionality that extends the bounds of what MFD was designed to platform/chrome subsystem. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd / platform: cros_ec: Move cros-ec core driver out from MFDEnric Balletbo i Serra
Now, the ChromeOS EC core driver has nothing related to an MFD device, so move that driver from the MFD subsystem to the platform/chrome subsystem. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd / platform: cros_ec: Handle chained ECs as platform devicesEnric Balletbo i Serra
An MFD is a device that contains several sub-devices (cells). For instance, the ChromeOS EC fits in this description as usually contains a charger and can have other devices with different functions like a Real-Time Clock, an Audio codec, a Real-Time Clock, ... If you look at the driver, though, we're doing something odd. We have two MFD cros-ec drivers where one of them (cros-ec-core) instantiates another MFD driver as sub-driver (cros-ec-dev), and the latest instantiates the different sub-devices (Real-Time Clock, Audio codec, etc). MFD ------------------------------------------ cros-ec-core |___ mfd-cellA (cros-ec-dev) | |__ mfd-cell0 | |__ mfd-cell1 | |__ ... | |___ mfd-cellB (cros-ec-dev) |__ mfd-cell0 |__ mfd-cell1 |__ ... The problem that was trying to solve is to describe some kind of topology for the case where we have an EC (cros-ec) chained with another EC (cros-pd). Apart from that this extends the bounds of what MFD was designed to do we might be interested on have other kinds of topology that can't be implemented in that way. Let's prepare the code to move the cros-ec-core part from MFD to platform/chrome as this is clearly a platform specific thing non-related to a MFD device. platform/chrome | MFD ------------------------------------------ | cros-ec ________|___ cros-ec-dev | |__ mfd-cell0 | |__ mfd-cell1 | |__ ... | cros-pd ________|___ cros-ec-dev | |__ mfd-cell0 | |__ mfd-cell1 | |__ ... Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Gwendal Grignou <gwendal@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: mt6323: Add MT6323 RTC and PWRCJosef Friedl
Add entry for RTC and Power Controller to MT6323. Signed-off-by: Josef Friedl <josef.friedl@speed.at> Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: mt6323: Replace boilerplate resource code with DEFINE_RES_* macrosJosef Friedl
Simplifies and reduces LoC. Signed-off-by: Josef Friedl <josef.friedl@speed.at> Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-09-02mfd: db8500-prcmu: Support the higher DB8520 ARMSSLinus Walleij
The DB8520 used in a lot of Samsung phones has a slightly higher maximum ARMSS frequency than the DB8500. In order to not confuse the OPP framework and cpufreq, make sure the PRCMU driver returns the correct frequency. Cc: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>