* [rtc-linux] [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc @ 2015-07-31 9:59 Suneel Garapati 2015-07-31 9:59 ` [rtc-linux] [PATCH v2 2/2] drivers: rtc: add xilinx zynqmp rtc driver Suneel Garapati 2015-08-07 4:53 ` [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc suneelgarapati 0 siblings, 2 replies; 7+ messages in thread From: Suneel Garapati @ 2015-07-31 9:59 UTC (permalink / raw) To: rtc-linux, linux-arm-kernel, linux-kernel Cc: michals, sorenb, Alessandro Zummo, Suneel Garapati adds file for description on device node bindings for RTC found on Xilinx Zynq Ultrascale+ MPSoC. Signed-off-by: Suneel Garapati <suneel.garapati@xilinx.com> --- Changes v2 - add examples for interrupt-names - change alm to alarm --- Documentation/devicetree/bindings/rtc/xlnx-rtc.txt | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/xlnx-rtc.txt diff --git a/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt b/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt new file mode 100644 index 0000000..0df6f01 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt @@ -0,0 +1,25 @@ +* 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>; +}; -- 2.1.2 -- -- You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. --- You received this message because you are subscribed to the Google Groups "rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [rtc-linux] [PATCH v2 2/2] drivers: rtc: add xilinx zynqmp rtc driver 2015-07-31 9:59 [rtc-linux] [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc Suneel Garapati @ 2015-07-31 9:59 ` Suneel Garapati 2015-08-11 18:31 ` Alexandre Belloni 2015-08-07 4:53 ` [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc suneelgarapati 1 sibling, 1 reply; 7+ messages in thread From: Suneel Garapati @ 2015-07-31 9:59 UTC (permalink / raw) To: rtc-linux, linux-arm-kernel, linux-kernel Cc: michals, sorenb, Alessandro Zummo, Suneel Garapati adds support for RTC controller found on Xilinx Zynq Ultrascale+ MPSoC platform. Signed-off-by: Suneel Garapati <suneel.garapati@xilinx.com> --- Changes v2 - change alm to alarm --- drivers/rtc/Kconfig | 7 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-zynqmp.c | 278 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 286 insertions(+) create mode 100644 drivers/rtc/rtc-zynqmp.c diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index e132ccb..e44705b 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -1116,6 +1116,13 @@ config RTC_DRV_OPAL This driver can also be built as a module. If so, the module will be called rtc-opal. +config RTC_DRV_ZYNQMP + tristate "Xilinx Zynq Ultrascale+ MPSoC RTC" + depends on OF + help + If you say yes here you get support for the RTC controller found on + Xilinx Zynq Ultrascale+ MPSoC. + comment "on-CPU RTC drivers" config RTC_DRV_DAVINCI diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 2797384..e491eb5 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -159,3 +159,4 @@ obj-$(CONFIG_RTC_DRV_WM831X) += rtc-wm831x.o obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o obj-$(CONFIG_RTC_DRV_XGENE) += rtc-xgene.o +obj-$(CONFIG_RTC_DRV_ZYNQMP) += rtc-zynqmp.o diff --git a/drivers/rtc/rtc-zynqmp.c b/drivers/rtc/rtc-zynqmp.c new file mode 100644 index 0000000..e442746 --- /dev/null +++ b/drivers/rtc/rtc-zynqmp.c @@ -0,0 +1,278 @@ +/* + * Xilinx Zynq Ultrascale+ MPSoC Real Time Clock Driver + * + * Copyright (C) 2015 Xilinx, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/rtc.h> + +/* RTC Registers */ +#define RTC_SET_TM_WR 0x00 +#define RTC_SET_TM_RD 0x04 +#define RTC_CALIB_WR 0x08 +#define RTC_CALIB_RD 0x0C +#define RTC_CUR_TM 0x10 +#define RTC_CUR_TICK 0x14 +#define RTC_ALRM 0x18 +#define RTC_INT_STS 0x20 +#define RTC_INT_MASK 0x24 +#define RTC_INT_EN 0x28 +#define RTC_INT_DIS 0x2C +#define RTC_CTRL 0x40 + +#define RTC_FR_EN BIT(20) +#define RTC_FR_DATSHIFT 16 +#define RTC_TICK_MASK 0xFFFF +#define RTC_INT_SEC BIT(0) +#define RTC_INT_ALRM BIT(1) +#define RTC_OSC_EN BIT(24) + +#define RTC_CALIB_DEF 0x198233 +#define RTC_CALIB_MASK 0x1FFFFF + +struct xlnx_rtc_dev { + struct rtc_device *rtc; + void __iomem *reg_base; + int alarm_irq; + int sec_irq; +}; + +static int xlnx_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); + unsigned long new_time; + + rtc_tm_to_time(tm, &new_time); + writel(new_time, xrtcdev->reg_base + RTC_SET_TM_WR); + + return 0; +} + +static int xlnx_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); + + rtc_time_to_tm(readl(xrtcdev->reg_base + RTC_CUR_TM), tm); + + return rtc_valid_tm(tm); +} + +static int xlnx_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); + + rtc_time_to_tm(readl(xrtcdev->reg_base + RTC_ALRM), &alrm->time); + alrm->enabled = readl(xrtcdev->reg_base + RTC_INT_MASK) & RTC_INT_ALRM; + + return 0; +} + +static int xlnx_rtc_alarm_irq_enable(struct device *dev, u32 enabled) +{ + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); + + if (enabled) + writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_EN); + else + writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_DIS); + + return 0; +} + +static int xlnx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); + unsigned long alarm_time; + + rtc_tm_to_time(&alrm->time, &alarm_time); + + writel((u32) alarm_time, (xrtcdev->reg_base + RTC_ALRM)); + + xlnx_rtc_alarm_irq_enable(dev, alrm->enabled); + + return 0; +} + +static void xlnx_init_rtc(struct xlnx_rtc_dev *xrtcdev, u32 calibval) +{ + /* + * Based on crystal freq of 33.330 KHz + * set the secounds counter and enable, set fractions counter + * to default value suggested as per design spec + * to correct RTC delay in frequency over period of time. + */ + calibval &= RTC_CALIB_MASK; + writel(calibval, (xrtcdev->reg_base + RTC_CALIB_WR)); +} + +static const struct rtc_class_ops xlnx_rtc_ops = { + .set_time = xlnx_rtc_set_time, + .read_time = xlnx_rtc_read_time, + .read_alarm = xlnx_rtc_read_alarm, + .set_alarm = xlnx_rtc_set_alarm, + .alarm_irq_enable = xlnx_rtc_alarm_irq_enable, +}; + +static irqreturn_t xlnx_rtc_interrupt(int irq, void *id) +{ + struct xlnx_rtc_dev *xrtcdev = (struct xlnx_rtc_dev *) id; + unsigned int status; + + status = readl(xrtcdev->reg_base + RTC_INT_STS); + /* Check if interrupt asserted */ + if (!(status & (RTC_INT_SEC | RTC_INT_ALRM))) + return IRQ_NONE; + + /* Clear interrupt */ + writel(status, xrtcdev->reg_base + RTC_INT_STS); + + if (status & RTC_INT_SEC) + rtc_update_irq(xrtcdev->rtc, 1, RTC_IRQF | RTC_UF); + if (status & RTC_INT_ALRM) + rtc_update_irq(xrtcdev->rtc, 1, RTC_IRQF | RTC_AF); + if (status & RTC_INT_ALRM) + printk("alarm interrupt\n"); + return IRQ_HANDLED; +} + +static int xlnx_rtc_probe(struct platform_device *pdev) +{ + struct xlnx_rtc_dev *xrtcdev; + struct resource *res; + int ret; + unsigned int calibvalue; + + xrtcdev = devm_kzalloc(&pdev->dev, sizeof(*xrtcdev), GFP_KERNEL); + if (!xrtcdev) + return -ENOMEM; + + platform_set_drvdata(pdev, xrtcdev); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + xrtcdev->reg_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(xrtcdev->reg_base)) + return PTR_ERR(xrtcdev->reg_base); + + xrtcdev->alarm_irq = platform_get_irq_byname(pdev, "alarm"); + if (xrtcdev->alarm_irq < 0) { + dev_err(&pdev->dev, "no irq resource\n"); + return xrtcdev->alarm_irq; + } + ret = devm_request_irq(&pdev->dev, xrtcdev->alarm_irq, + xlnx_rtc_interrupt, 0, + dev_name(&pdev->dev), xrtcdev); + if (ret) { + dev_err(&pdev->dev, "request irq failed\n"); + return ret; + } + + xrtcdev->sec_irq = platform_get_irq_byname(pdev, "sec"); + if (xrtcdev->sec_irq < 0) { + dev_err(&pdev->dev, "no irq resource\n"); + return xrtcdev->sec_irq; + } + ret = devm_request_irq(&pdev->dev, xrtcdev->sec_irq, + xlnx_rtc_interrupt, 0, + dev_name(&pdev->dev), xrtcdev); + if (ret) { + dev_err(&pdev->dev, "request irq failed\n"); + return ret; + } + + ret = of_property_read_u32(pdev->dev.of_node, "calibration", + &calibvalue); + if (ret) + calibvalue = RTC_CALIB_DEF; + + xlnx_init_rtc(xrtcdev, calibvalue); + + device_init_wakeup(&pdev->dev, 1); + + xrtcdev->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, + &xlnx_rtc_ops, THIS_MODULE); + if (IS_ERR(xrtcdev->rtc)) { + return PTR_ERR(xrtcdev->rtc); + } + + return 0; +} + +static int xlnx_rtc_remove(struct platform_device *pdev) +{ + xlnx_rtc_alarm_irq_enable(&pdev->dev, 0); + device_init_wakeup(&pdev->dev, 0); + + return 0; +} + +static int __maybe_unused xlnx_rtc_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct xlnx_rtc_dev *xrtcdev = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) { + enable_irq_wake(xrtcdev->alarm_irq); + } else { + xlnx_rtc_alarm_irq_enable(dev, 0); + } + + return 0; +} + +static int __maybe_unused xlnx_rtc_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct xlnx_rtc_dev *xrtcdev = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) { + disable_irq_wake(xrtcdev->alarm_irq); + } else { + xlnx_rtc_alarm_irq_enable(dev, 1); + } + + return 0; +} + +static SIMPLE_DEV_PM_OPS(xlnx_rtc_pm_ops, xlnx_rtc_suspend, xlnx_rtc_resume); + +static const struct of_device_id xlnx_rtc_of_match[] = { + {.compatible = "xlnx,zynqmp-rtc" }, + { } +}; +MODULE_DEVICE_TABLE(of, xlnx_rtc_of_match); + +static struct platform_driver xlnx_rtc_driver = { + .probe = xlnx_rtc_probe, + .remove = xlnx_rtc_remove, + .driver = { + .name = KBUILD_MODNAME, + .pm = &xlnx_rtc_pm_ops, + .of_match_table = xlnx_rtc_of_match, + }, +}; + +module_platform_driver(xlnx_rtc_driver); + +MODULE_DESCRIPTION("Xilinx Zynq MPSoC RTC driver"); +MODULE_AUTHOR("Xilinx Inc."); +MODULE_LICENSE("GPL v2"); -- 2.1.2 -- -- You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. --- You received this message because you are subscribed to the Google Groups "rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. ^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [rtc-linux] [PATCH v2 2/2] drivers: rtc: add xilinx zynqmp rtc driver 2015-07-31 9:59 ` [rtc-linux] [PATCH v2 2/2] drivers: rtc: add xilinx zynqmp rtc driver Suneel Garapati @ 2015-08-11 18:31 ` Alexandre Belloni 0 siblings, 0 replies; 7+ messages in thread From: Alexandre Belloni @ 2015-08-11 18:31 UTC (permalink / raw) To: Suneel Garapati Cc: rtc-linux, linux-arm-kernel, linux-kernel, michals, sorenb, Alessandro Zummo Hi, Please run checkpatch --strict and fix the issues. On 31/07/2015 at 15:29:17 +0530, Suneel Garapati wrote : > +#include <linux/init.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/platform_device.h> > +#include <linux/io.h> > +#include <linux/delay.h> > +#include <linux/rtc.h> > + The includes hav to be sorted alphabetically. > +static int xlnx_rtc_set_time(struct device *dev, struct rtc_time *tm) > +{ > + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); > + unsigned long new_time; > + > + rtc_tm_to_time(tm, &new_time); You should use rtc_tm_to_time64() and rtc_time64_to_tm() throughout the file. > + writel(new_time, xrtcdev->reg_base + RTC_SET_TM_WR); > + Is that a 32bits register? If yes, you probably want to return an error if the year is 2106 or after. > + return 0; > +} > + [...] > +static int xlnx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) > +{ > + struct xlnx_rtc_dev *xrtcdev = dev_get_drvdata(dev); > + unsigned long alarm_time; > + Same comment, you probably want to error out if the time overflows a 32bits register. > + rtc_tm_to_time(&alrm->time, &alarm_time); > + > + writel((u32) alarm_time, (xrtcdev->reg_base + RTC_ALRM)); > + > + xlnx_rtc_alarm_irq_enable(dev, alrm->enabled); > + > + return 0; > +} > + > +static void xlnx_init_rtc(struct xlnx_rtc_dev *xrtcdev, u32 calibval) > +{ > + /* > + * Based on crystal freq of 33.330 KHz > + * set the secounds counter and enable, set fractions counter typo --------------^ > + * to default value suggested as per design spec > + * to correct RTC delay in frequency over period of time. > + */ > + calibval &= RTC_CALIB_MASK; > + writel(calibval, (xrtcdev->reg_base + RTC_CALIB_WR)); > +} > + > +static const struct rtc_class_ops xlnx_rtc_ops = { > + .set_time = xlnx_rtc_set_time, > + .read_time = xlnx_rtc_read_time, > + .read_alarm = xlnx_rtc_read_alarm, > + .set_alarm = xlnx_rtc_set_alarm, > + .alarm_irq_enable = xlnx_rtc_alarm_irq_enable, > +}; > + > +static irqreturn_t xlnx_rtc_interrupt(int irq, void *id) > +{ > + struct xlnx_rtc_dev *xrtcdev = (struct xlnx_rtc_dev *) id; > + unsigned int status; > + > + status = readl(xrtcdev->reg_base + RTC_INT_STS); > + /* Check if interrupt asserted */ > + if (!(status & (RTC_INT_SEC | RTC_INT_ALRM))) > + return IRQ_NONE; > + > + /* Clear interrupt */ > + writel(status, xrtcdev->reg_base + RTC_INT_STS); > + > + if (status & RTC_INT_SEC) > + rtc_update_irq(xrtcdev->rtc, 1, RTC_IRQF | RTC_UF); > + if (status & RTC_INT_ALRM) > + rtc_update_irq(xrtcdev->rtc, 1, RTC_IRQF | RTC_AF); > + if (status & RTC_INT_ALRM) > + printk("alarm interrupt\n"); I guess this is a debug message that you forgot to remove. > +static int xlnx_rtc_probe(struct platform_device *pdev) > +{ > + struct xlnx_rtc_dev *xrtcdev; > + struct resource *res; > + int ret; > + unsigned int calibvalue; > + > + xrtcdev = devm_kzalloc(&pdev->dev, sizeof(*xrtcdev), GFP_KERNEL); > + if (!xrtcdev) > + return -ENOMEM; > + > + platform_set_drvdata(pdev, xrtcdev); > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + > + xrtcdev->reg_base = devm_ioremap_resource(&pdev->dev, res); > + if (IS_ERR(xrtcdev->reg_base)) > + return PTR_ERR(xrtcdev->reg_base); > + > + xrtcdev->alarm_irq = platform_get_irq_byname(pdev, "alarm"); > + if (xrtcdev->alarm_irq < 0) { > + dev_err(&pdev->dev, "no irq resource\n"); > + return xrtcdev->alarm_irq; > + } > + ret = devm_request_irq(&pdev->dev, xrtcdev->alarm_irq, > + xlnx_rtc_interrupt, 0, > + dev_name(&pdev->dev), xrtcdev); > + if (ret) { > + dev_err(&pdev->dev, "request irq failed\n"); > + return ret; > + } > + > + xrtcdev->sec_irq = platform_get_irq_byname(pdev, "sec"); > + if (xrtcdev->sec_irq < 0) { > + dev_err(&pdev->dev, "no irq resource\n"); > + return xrtcdev->sec_irq; > + } > + ret = devm_request_irq(&pdev->dev, xrtcdev->sec_irq, > + xlnx_rtc_interrupt, 0, > + dev_name(&pdev->dev), xrtcdev); > + if (ret) { > + dev_err(&pdev->dev, "request irq failed\n"); > + return ret; > + } > + > + ret = of_property_read_u32(pdev->dev.of_node, "calibration", > + &calibvalue); > + if (ret) > + calibvalue = RTC_CALIB_DEF; > + > + xlnx_init_rtc(xrtcdev, calibvalue); > + > + device_init_wakeup(&pdev->dev, 1); > + > + xrtcdev->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, > + &xlnx_rtc_ops, THIS_MODULE); > + if (IS_ERR(xrtcdev->rtc)) { > + return PTR_ERR(xrtcdev->rtc); > + } > + > + return 0; You should use PTR_ERR_OR_ZERO here. Thanks, -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- -- You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. --- You received this message because you are subscribed to the Google Groups "rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc 2015-07-31 9:59 [rtc-linux] [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc Suneel Garapati 2015-07-31 9:59 ` [rtc-linux] [PATCH v2 2/2] drivers: rtc: add xilinx zynqmp rtc driver Suneel Garapati @ 2015-08-07 4:53 ` suneelgarapati 2015-08-11 18:32 ` Alexandre Belloni 1 sibling, 1 reply; 7+ messages in thread From: suneelgarapati @ 2015-08-07 4:53 UTC (permalink / raw) To: rtc-linux Cc: linux-arm-kernel, linux-kernel, michals, sorenb, a.zummo, suneel.garapati, anirudh [-- Attachment #1.1: Type: text/plain, Size: 2317 bytes --] Hi Alexandre Belloni, Any review comments on v2 series? Regards, Suneel On Friday, July 31, 2015 at 3:29:36 PM UTC+5:30, Suneel Garapati wrote: > > adds file for description on device node bindings for RTC > found on Xilinx Zynq Ultrascale+ MPSoC. > > Signed-off-by: Suneel Garapati <suneel....@xilinx.com <javascript:>> > --- > Changes v2 > - add examples for interrupt-names > - change alm to alarm > --- > Documentation/devicetree/bindings/rtc/xlnx-rtc.txt | 25 > ++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > create mode 100644 Documentation/devicetree/bindings/rtc/xlnx-rtc.txt > > diff --git a/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt > b/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt > new file mode 100644 > index 0000000..0df6f01 > --- /dev/null > +++ b/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt > @@ -0,0 +1,25 @@ > +* 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>; > +}; > -- > 2.1.2 > -- -- You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. --- You received this message because you are subscribed to the Google Groups "rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. [-- Attachment #1.2: Type: text/html, Size: 3349 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc 2015-08-07 4:53 ` [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc suneelgarapati @ 2015-08-11 18:32 ` Alexandre Belloni 2015-08-11 19:29 ` Suneel Garapati 0 siblings, 1 reply; 7+ messages in thread From: Alexandre Belloni @ 2015-08-11 18:32 UTC (permalink / raw) To: suneelgarapati Cc: rtc-linux, linux-arm-kernel, linux-kernel, michals, sorenb, a.zummo, suneel.garapati, anirudh Hi, On 06/08/2015 at 21:53:09 -0700, suneelgarapati@gmail.com wrote : > Hi Alexandre Belloni, > > Any review comments on v2 series? > Done. It would probably help if I was in copy of your mails ;) -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc 2015-08-11 18:32 ` Alexandre Belloni @ 2015-08-11 19:29 ` Suneel Garapati 2015-08-11 21:20 ` Alexandre Belloni 0 siblings, 1 reply; 7+ messages in thread From: Suneel Garapati @ 2015-08-11 19:29 UTC (permalink / raw) To: Alexandre Belloni, suneelgarapati@gmail.com Cc: rtc-linux, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Michal Simek, Soren Brinkmann, a.zummo@towertech.it, Anirudha Sarangi Hi Alexandre, For unknown reason, Alessandro zummo is shown by get_maintainer.pl. I will fix and send v3 with all comments addressed. Regards, Suneel > -----Original Message----- > From: Alexandre Belloni [mailto:alexandre.belloni@free-electrons.com] > Sent: Wednesday, August 12, 2015 0:02 AM > To: suneelgarapati@gmail.com > Cc: rtc-linux; linux-arm-kernel@lists.infradead.org; linux- > kernel@vger.kernel.org; Michal Simek; Soren Brinkmann; > a.zummo@towertech.it; Suneel Garapati; Anirudha Sarangi > Subject: Re: [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: ad= d > bindings for xilinx zynqmp rtc > > Hi, > > On 06/08/2015 at 21:53:09 -0700, suneelgarapati@gmail.com wrote : > > Hi Alexandre Belloni, > > > > Any review comments on v2 series? > > > > Done. It would probably help if I was in copy of your mails ;) > > > -- > Alexandre Belloni, Free Electrons > Embedded Linux, Kernel and Android engineering http://free-electrons.com This email and any attachments are intended for the sole use of the named r= ecipient(s) and contain(s) confidential information that may be proprietary= , privileged or copyrighted under applicable law. If you are not the intend= ed recipient, do not read, copy, or forward this email message or any attac= hments. Delete this email message and any attachments immediately. --=20 --=20 You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. ---=20 You received this message because you are subscribed to the Google Groups "= rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc 2015-08-11 19:29 ` Suneel Garapati @ 2015-08-11 21:20 ` Alexandre Belloni 0 siblings, 0 replies; 7+ messages in thread From: Alexandre Belloni @ 2015-08-11 21:20 UTC (permalink / raw) To: Suneel Garapati Cc: suneelgarapati@gmail.com, rtc-linux, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Michal Simek, Soren Brinkmann, a.zummo@towertech.it, Anirudha Sarangi On 11/08/2015 at 19:29:54 +0000, Suneel Garapati wrote : > For unknown reason, Alessandro zummo is shown by get_maintainer.pl. Because he is the original RTC subsystem maintainer. Are you working on an older kernel and my name doesn't appear? -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- -- You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. --- You received this message because you are subscribed to the Google Groups "rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-08-11 21:20 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2015-07-31 9:59 [rtc-linux] [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc Suneel Garapati 2015-07-31 9:59 ` [rtc-linux] [PATCH v2 2/2] drivers: rtc: add xilinx zynqmp rtc driver Suneel Garapati 2015-08-11 18:31 ` Alexandre Belloni 2015-08-07 4:53 ` [rtc-linux] Re: [PATCH v2 1/2] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc suneelgarapati 2015-08-11 18:32 ` Alexandre Belloni 2015-08-11 19:29 ` Suneel Garapati 2015-08-11 21:20 ` Alexandre Belloni
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