Merge tag 'rtc-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux (c1917615) · Commits · e / devices / android_kernel_fairphone_FP4

Pull RTC updates from Alexandre Belloni: "Core: - use is_visible() to control sysfs attributes - switch wakealarm attribute to DEVICE_ATTR_RW - make rtc_does_wakealarm() return boolean - properly manage lifetime of dev and cdev in rtc device - remove unnecessary device_get() in rtc_device_unregister - fix double free in rtc_register_device() error path New drivers: - NXP LPC24xx - Xilinx Zynq MP - Dialog DA9062 Subsystem wide cleanups: - fix drivers that consider 0 as a valid IRQ in client->irq - Drop (un)likely before IS_ERR(_OR_NULL) - drop the remaining owner assignment for i2c_driver and platform_driver - module autoload fixes Drivers: - 88pm80x: add device tree support - abx80x: fix RTC write bit - ab8500: Add a sentinel to ab85xx_rtc_ids[] - armada38x: Align RTC set time procedure with the official errata - as3722: correct month value - at91sam9: cleanups - at91rm9200: get and use slow clock and cleanups - bq32k: remove redundant check - cmos: century support, proper fix for the spurious wakeup - ds1307: cleanups and wakeup irq support - ds1374: Remove unused variable - ds1685: Use module_platform_driver - ds3232: fix WARNING trace in resume function - gemini: fix ptr_ret.cocci warnings - mt6397: implement suspend/resume - omap: support internal and external clock enabling - opal: Enable alarms only when opal supports tpo - pcf2127: use OFS flag to detect unreliable date and warn the user - pl031: fix typo for author email - rx8025: huge cleanup and fixes - sa1100/pxa: share common code - s5m: fix to update ctrl register - s3c: fix clocks and wakeup, cleanup - sirfsoc: use regmap - nvram_read()/nvram_write() functions for cmos, ds1305, ds1307, ds1343, ds1511, ds1553, ds1742, m48t59, rp5c01, stk17ta8, tx4939 - use rtc_valid_tm() error code when reading date/time instead of 0 for isl12022, pcf2123, pcf2127" * tag 'rtc-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (90 commits) rtc: abx80x: fix RTC write bit rtc: ab8500: Add a sentinel to ab85xx_rtc_ids[] rtc: ds1374: Remove unused variable rtc: Fix module autoload for OF platform drivers rtc: Fix module autoload for rtc-{ab8500,max8997,s5m} drivers rtc: omap: Add external clock enabling support rtc: omap: Add internal clock enabling support ARM: dts: AM437x: Add the internal and external clock nodes for rtc rtc: s5m: fix to update ctrl register rtc: add xilinx zynqmp rtc driver devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc rtc: as3722: correct month value ARM: config: Switch PXA27x platforms to use PXA RTC driver ARM: mmp: remove unused RTC register definitions ARM: sa1100: remove unused RTC register definitions rtc: sa1100/pxa: convert to run-time register mapping ARM: pxa: add memory resource to SA1100 RTC device rtc: pxa: convert to use shared sa1100 functions rtc: sa1100: prepare to share sa1100_rtc_ops rtc: ds3232: fix WARNING trace in resume function ...

Documentation/devicetree/bindings/rtc/nxp,lpc1788-rtc.txt

0 → 100644

+21 −0

Original line number	Diff line number	Diff line
		NXP LPC1788 real-time clock

		The LPC1788 RTC provides calendar and clock functionality
		together with periodic tick and alarm interrupt support.

		Required properties:
		- compatible : must contain "nxp,lpc1788-rtc"
		- reg : Specifies base physical address and size of the registers.
		- interrupts : A single interrupt specifier.
		- clocks : Must contain clock specifiers for rtc and register clock
		- clock-names : Must contain "rtc" and "reg"
		See ../clocks/clock-bindings.txt for details.

		Example:
		rtc: rtc@40046000 {
		compatible = "nxp,lpc1788-rtc";
		reg = <0x40046000 0x1000>;
		interrupts = <47>;
		clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
		clock-names = "rtc", "reg";
		};

Documentation/devicetree/bindings/rtc/rtc-omap.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@ Required properties:
		Optional properties:
		- system-power-controller: whether the rtc is controlling the system power
		through pmic_power_en
		- clocks: Any internal or external clocks feeding in to rtc
		- clock-names: Corresponding names of the clocks

		Example:

		@@ -26,4 +28,6 @@ rtc@1c23000 {
		19>;
		interrupt-parent = <&intc>;
		system-power-controller;
		clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
		clock-names = "ext-clk", "int-clk";
		};

Documentation/devicetree/bindings/rtc/xlnx-rtc.txt

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+25 −0

Original line number	Diff line number	Diff line
		* Xilinx Zynq Ultrascale+ MPSoC Real Time Clock

		RTC controller for the Xilinx Zynq MPSoC Real Time Clock
		Separate IRQ lines for seconds and alarm

		Required properties:
		- compatible: Should be "xlnx,zynqmp-rtc"
		- reg: Physical base address of the controller and length
		of memory mapped region.
		- interrupts: IRQ lines for the RTC.
		- interrupt-names: interrupt line names eg. "sec" "alarm"

		Optional:
		- calibration: calibration value for 1 sec period which will
		be programmed directly to calibration register

		Example:
		rtc: rtc@ffa60000 {
		compatible = "xlnx,zynqmp-rtc";
		reg = <0x0 0xffa60000 0x100>;
		interrupt-parent = <&gic>;
		interrupts = <0 26 4>, <0 27 4>;
		interrupt-names = "alarm", "sec";
		calibration = <0x198233>;
		};

arch/arm/boot/dts/am4372.dtsi

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Original line number	Diff line number	Diff line
		@@ -358,6 +358,8 @@
		interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH
		GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
		ti,hwmods = "rtc";
		clocks = <&clk_32768_ck>;
		clock-names = "int-clk";
		status = "disabled";
		};

arch/arm/boot/dts/am437x-gp-evm.dts

+13 −0

Original line number	Diff line number	Diff line
		@@ -112,6 +112,13 @@
		clock-frequency = <12000000>;
		};

		/* fixed 32k external oscillator clock */
		clk_32k_rtc: clk_32k_rtc {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <32768>;
		};

		sound0: sound@0 {
		compatible = "simple-audio-card";
		simple-audio-card,name = "AM437x-GP-EVM";
		@@ -941,3 +948,9 @@
		tx-num-evt = <32>;
		rx-num-evt = <32>;
		};

		&rtc {
		clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
		clock-names = "ext-clk", "int-clk";
		status = "okay";
		};