linux-dev/include/linux/mfd/samsung/core.h, branch linus/master

mfd: sec: Remove unused platform data members

2021-06-02T09:51:18Z

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 Signed-off-by: Lee Jones

mfd: sec: Enable wakeup from suspend via devicetree property

2021-06-02T09:51:18Z

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 Signed-off-by: Lee Jones

mfd: sec: Remove unused irq_base in platform data

2021-06-02T09:51:18Z

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 Signed-off-by: Lee Jones

mfd: sec: Remove unused device_type in platform data

2021-06-02T09:51:18Z

The 'device_type' field of platform data structure is not used and can be safely dropped. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones

mfd: sec: Remove unused cfg_pmic_irq in platform data

2021-06-02T09:51:18Z

The 'cfg_pmic_irq' field of platform data structure is not used and can be safely dropped. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones

regulator: s2mps11: Adjust supported buck voltages to real values

2019-07-02T11:43:25Z

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 Signed-off-by: Mark Brown

mfd: sec-core: Add SPDX license identifiers

2018-10-23T07:58:34Z

Replace GPL v2.0+ license statements with SPDX license identifiers. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones

regulator: s5m8767: Pass descriptor instead of GPIO number

2018-05-24T15:50:42Z

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 Acked-by: Lee Jones Signed-off-by: Mark Brown

regulator: s2mps11: Set default ramp delay for S2MPS11 LDOs

2016-04-18T16:31:38Z

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 Signed-off-by: Mark Brown

mfd: sec: Add support for S2MPS15 PMIC

2015-11-23T10:33:16Z

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 Signed-off-by: Alim Akhtar Reviewed-by: Krzysztof Kozlowski [Alim: Added s2mps15_devs like rtc and clk and related changes] Signed-off-by: Lee Jones