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* mfd: sec: Remove unused platform data membersKrzysztof Kozlowski2021-06-021-25/+0
| | | | | | | | | | | | The Samsung PMIC drivers for early chipsets like S5M8767 stored quite a lot in platform data (struct sec_platform_data). The s5m8767 regulator driver currently references only some of its fields. Newer regulator drivers (e.g. s2mps11) use even less platform data fields. Clean up the structure to reduce memory footprint and source code size. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec: Enable wakeup from suspend via devicetree propertyKrzysztof Kozlowski2021-06-021-3/+0
| | | | | | | | | | | | | Set device wakeup capability from devicetree property (done by drivers core), instead of always setting it to 0 (because value in platform data is not assigned). This should not have visible effect on actual resuming from suspend because the child device - S5M RTC driver - is responsible for waking up and sets device wakeup unconditionally. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec: Remove unused irq_base in platform dataKrzysztof Kozlowski2021-06-021-3/+0
| | | | | | | | | The 'irq_base' field of platform data structure is not assigned, therefore its default value of 0 has no impact and can be safely dropped. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec: Remove unused device_type in platform dataKrzysztof Kozlowski2021-06-021-1/+0
| | | | | | | | The 'device_type' field of platform data structure is not used and can be safely dropped. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec: Remove unused cfg_pmic_irq in platform dataKrzysztof Kozlowski2021-06-021-1/+0
| | | | | | | | The 'cfg_pmic_irq' field of platform data structure is not used and can be safely dropped. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* regulator: s2mps11: Adjust supported buck voltages to real valuesKrzysztof Kozlowski2019-07-021-0/+1
| | | | | | | | | | | | | | | | | The driver was registering buck regulators with unsupported range of voltages for S2MPS11 devices. Basically it assumed that all 256 values are possible for a single 8-bit I2C register controlling buck's voltage. This is not true, as datasheet describes subset of these which can be used. For example for buck[12346] the minimum voltage is 650 mV which corresponds to register value of 0x8. The driver was however registering regulator starting at 600 mV, so for a step of 6.25 mV this gave the same result. However this allowed to try to configure regulators to unsupported values. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* mfd: sec-core: Add SPDX license identifiersKrzysztof Kozlowski2018-10-231-9/+2
| | | | | | | Replace GPL v2.0+ license statements with SPDX license identifiers. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* regulator: s5m8767: Pass descriptor instead of GPIO numberLinus Walleij2018-05-241-1/+3
| | | | | | | | | | | | | | Instead of passing a global GPIO number for the enable GPIO, pass a descriptor looked up from the device tree node for the regulator. This regulator supports passing platform data, but enable/sleep regulators are looked up from the device tree exclusively, so we can need not touch other files. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* regulator: s2mps11: Set default ramp delay for S2MPS11 LDOsKrzysztof Kozlowski2016-04-181-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Driver did not provide default value for ramp delay for LDOs which lead to warning in dmesg, e.g. on Odroid XU4: [ 1.486076] vdd_ldo9: ramp_delay not set [ 1.506875] vddq_mmc2: ramp_delay not set [ 1.523766] vdd_ldo15: ramp_delay not set [ 1.544702] vdd_sd: ramp_delay not set The datasheet for all the S2MPS1x family is inconsistent here and does not specify unambiguously the value of ramp delay for LDO. It mentions 30 mV/us in one timing diagram but then omits it completely in LDO regulator characteristics table (it is specified for bucks). However the vendor kernels for Galaxy S5 and Odroid XU3 use values of 12 mV/us or 24 mV/us. Without the ramp delay value the consumers do not wait for voltage settle after changing it. Although the proper value of ramp delay for LDOs is unknown, it seems safer to use at least some value from reference kernel than to leave it unset. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* mfd: sec: Add support for S2MPS15 PMICThomas Abraham2015-11-231-0/+1
| | | | | | | | | | | | | Add support for S2MPS15 PMIC which is similar to S2MPS11 PMIC. The S2MPS15 PMIC supports 27 LDO regulators, 10 buck regulators, RTC, three 32.768KHz clock outputs and battery charger. This patch adds initial support for LDO and buck regulators of S2MPS15 device. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> [Alim: Added s2mps15_devs like rtc and clk and related changes] Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec-core: Disable buck voltage reset on watchdog falling edgeKrzysztof Kozlowski2015-10-301-0/+2
| | | | | | | | | | | | | | | | | | | The WRSTBI bit (disabled by default but enabled by bootloader), when set, is responsible for resetting voltages to default values of certain bucks on falling edge of Warm Reset Input pin from AP. However on some boards (with S2MPS13) the pin is pulled down so any suspend will effectively trigger the reset of bucks supplying the power to the little and big cores. In the same time when resuming, these bucks must provide voltage greater or equal to voltage before suspend to match the frequency chosen by cpufreq. If voltage (default value of voltage after reset) is lower than one set by cpufreq before suspend, then system will hang during resuming. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: s2mps11: Add manual shutdown method for Odroid XU3Krzysztof Kozlowski2015-10-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | On Odroid XU3 board (with S2MPS11 PMIC) the PWRHOLD bit in CTRL1 register must be manually set to 0 before initiating power off sequence. One of usual power down methods for Exynos based devices looks like: 1. PWRHOLD pin of PMIC is connected to PSHOLD of Exynos SoC. 2. Exynos holds up this pin during system operation. 3. ACOKB pin of PMIC is pulled up to VBATT and optionally to pin in other device. 4. When PWRHOLD/PSHOLD goes low, the PMIC will turn off the power if ACOKB goes high. On Odroid XU3 family the difference is in (3) - the ACOKB is grounded. This means that PMIC must manually set PWRHOLD field to low and then wait for signal from Application Processor (the usual change in PWRHOLD/PSHOLD pin will actually cut off the power). The patch adds respective binding allowing Odroid XU3 device to be powered off. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Reported-by: Anand Moon <linux.amoon@gmail.com> Tested-by: Anand Moon <linux.amoon@gmail.com> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec: Cleanup unused RTC fields: ono, WTSR and SMPLKrzysztof Kozlowski2015-03-031-9/+0
| | | | | | | | | The WTSR (Watchdog Timer Software Reset) and SMPL (Sudden Momentary Power Loss) were removed from rtc-s5m driver because they were not used. Remove them (and on/off interrupt) from main MFD driver and header. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* regulator: s2mps11: Add support S2MPS13 regulator deviceChanwoo Choi2014-11-251-0/+1
| | | | | | | | | | | | This patch adds S2MPS13 regulator device to existing S2MPS11 device driver. The S2MPS13 has just different number of regulators from S2MPS14. The S2MPS13 regulator device includes LDO[1-40] and BUCK[1-10]. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com> Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec-core: Add support for S2MPS13 deviceChanwoo Choi2014-11-251-0/+1
| | | | | | | | | | This patch adds the support for Samsung S2MPS13 PMIC device to the sec-core MFD driver. The S2MPS13 is very similar with existing S2MPS14 and includes PMIC/ RTC/CLOCK devices. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* regulator: s2mpxxx: Move regulator min/step voltages in common placeAmit Daniel Kachhap2014-08-161-0/+21
| | | | | | | | | | | This is a cleanup patch and moves min/step voltages in a common samsung header file so that they can be used by other s2mpxxx PMIC drivers. Only few required macros are added currently and others can be added if needed. Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* mfd: sec-core: Add support for S2MPU02 deviceChanwoo Choi2014-07-091-0/+1
| | | | | | | | | Add support for Samsung S2MPU02 PMIC device to the MFD sec-core driver. The S2MPU02 device includes PMIC/RTC/Clock devices. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec-core: Remove duplicated device type from sec_pmic_devKrzysztof Kozlowski2014-06-031-2/+1
| | | | | | | | | | | | | | | | The device type was stored in sec_pmic_dev state container twice: - unsigned long type (initialized from of_device_id or i2c_device_id) - int device_type (initialized as above or from board files when there is no DTS) The 'type' field was never used outside of probe so it can be safely removed. Change also the device_type in sec_pmic_dev and sec_platform_data to unsigned long to avoid any casts. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec-core: Update sec_pmic documentationKrzysztof Kozlowski2014-06-031-12/+17
| | | | | | | | Update the documentation for sec_pmic state container structure to reflect current code. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd/rtc: s5m: Do not allocate RTC I2C dummy and regmap for unsupported chipsetsKrzysztof Kozlowski2014-06-031-3/+0
| | | | | | | | | | | | | | | | | | The rtc-s5m driver does not support all of S2M and S5M chipsets supported by main MFD sec-core driver. For such chipsets unsupported by rtc-s5m, the MFD sec-core driver initialized regmap with default config. This config in such cases wouldn't work at all. The main MFD sec-core driver shouldn't initialize regmap for child drivers which is not used by them and even not valid. Move the allocation of RTC I2C dummy device and initialization of RTC regmap from main MFD sec-core driver to the rtc-s5m driver. The rtc-s5m driver will use proper regmap config for supported devices. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Lee Jones <lee.jones@linaro.org>
*-. Merge remote-tracking branches 'regulator/topic/s5m8767', ↵Mark Brown2014-03-261-1/+2
|\ \ | | | | | | | | | 'regulator/topic/st-pwm', 'regulator/topic/ti-abb', 'regulator/topic/tps51632', 'regulator/topic/tps62360', 'regulator/topic/tps6507x', 'regulator/topic/tps65090' and 'regulator/topic/tps65217' into regulator-next
| * | regulator: s5m8767: Use GPIO for controlling Buck9/eMMCKrzysztof Kozlowski2014-01-271-1/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for GPIO control (enable/disable) over Buck9. The Buck9 Converter is used as a supply for eMMC Host Controller. BUCK9EN GPIO of S5M8767 chip may be used by application processor to enable or disable the Buck9. This has two benefits: - It is faster than toggling it over I2C bus. - It allows disabling the regulator during suspend to RAM; The AP will enable it during resume; Without the patch the regulator supplying eMMC must be defined as fixed-regulator. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* | mfd: Add support for S2MPA01 deviceSachin Kamat2014-03-181-5/+11
| | | | | | | | | | | | | | | | Add the necessary entries required for S2MPA01 multi-function device. While at it also convert whitespaces to tabs in core.h. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | mfd: sec-core: Silence compiler warningPankaj Dubey2014-03-181-1/+1
| | | | | | | | | | | | | | | | | | When used 64bit compiler GCC warns as drivers/mfd/sec-core.c:199:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | mfd: sec: Add support for S2MPS14Krzysztof Kozlowski2014-03-181-0/+1
|/ | | | | | | | | Add support for S2MPS14 PMIC device to the MFD sec-core driver. The S2MPS14 is similar to S2MPS11 but it has fewer regulators, two clocks instead of three and a little different registers layout. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: sec: Remove sec_reg* regmap helpersKrzysztof Kozlowski2013-12-181-6/+0
| | | | | | | | | | | | | Remove sec_reg* helpers as they are not used anymore. These helpers were error-prone as they mixed u8 with unsigned int and they changed order of some of parameters (val and mask in sec_reg_update()). Also the helpers didn't give any way of useful abstraction as they just called corresponding regmap function. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* mfd/rtc: s5m: fix register updating by adding regmap for RTCKrzysztof Kozlowski2013-12-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Rename old regmap field of "struct sec_pmic_dev" to "regmap_pmic" and add new regmap for RTC. On S5M8767A registers were not properly updated and read due to usage of the same regmap as the PMIC. This could be observed in various hangs, e.g. in infinite loop during waiting for UDR field change. On this chip family the RTC has different I2C address than PMIC so additional regmap is needed. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Mark Brown <broonie@linaro.org> Acked-by: Sangbeom Kim <sbkim73@samsung.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: s5m-rtc: add real-time clock driver for s5m8767Sangbeom Kim2013-11-131-0/+1
| | | | | | | | | | | | Add real-time clock driver for s5m8767. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Todd Broch <tbroch@chromium.org> Cc: Mark Brown <broonie@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> [mfd parts] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mfd: sec: Remove fields not used since regmap conversionMark Brown2013-06-301-6/+0
| | | | | | | | These were all used by the open coded I/O and IRQ implementations and are no longer referenced now that the regmap core variants are used instead. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* regulator: add device tree support for s5m8767Amit Daniel Kachhap2013-02-041-4/+7
| | | | | | | | | | | | This device tree support is added for PMIC block of S5m8767 multi function driver. The usage detail is added in the device tree documentation section. This change is tested on exynos5250 based arndale platform by regulator voltage set/get API's. Reviewed-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Tested-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: Add s2mps11 irq driverSangbeom Kim2012-07-161-0/+2
| | | | | | | | | This patch support irq handling driver for s2mps11. As this patch use regmap_irq, s5m8767 and s5m8763 are modified with regmap_irq. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add samsung s2mps11 mfd supportSangbeom Kim2012-07-161-0/+10
| | | | | | | | This patch add Samsung S2MPS11 mfd driver. The S2MPS11 can support regulators and RTC. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Modify samsung mfd headerSangbeom Kim2012-07-161-0/+147
As Prefix of Samsung pmic changed from s5m to s2m, To make common mfd driver for s2m and s5m series, This patch rename header of Samsung mfd and modify mfd driver. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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