| Message ID | 1410511739-31122-3-git-send-email-b38343@freescale.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Sep 12, 2014 at 04:48:58PM +0800, Robin Gong wrote: > Add simple power off driver for i.mx6. > > Signed-off-by: Robin Gong <b38343@freescale.com> > --- > drivers/power/reset/Kconfig | 6 +++ > drivers/power/reset/Makefile | 1 + > drivers/power/reset/imx-snvs-poweroff.c | 69 +++++++++++++++++++++++++++++++++ > 3 files changed, 76 insertions(+) > create mode 100644 drivers/power/reset/imx-snvs-poweroff.c > > diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig > index ca41523..c48d9ba 100644 > --- a/drivers/power/reset/Kconfig > +++ b/drivers/power/reset/Kconfig > @@ -45,6 +45,12 @@ config POWER_RESET_HISI > help > Reboot support for Hisilicon boards. > > +config POWER_RESET_IMX > + bool "IMX6 power-off driver" > + depends on POWER_RESET && SOC_IMX6 > + help > + Power off support for i.mx6 boards. > + > config POWER_RESET_MSM > bool "Qualcomm MSM power-off driver" > depends on POWER_RESET && ARCH_QCOM > diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile > index a42e70e..2524daf 100644 > --- a/drivers/power/reset/Makefile > +++ b/drivers/power/reset/Makefile > @@ -3,6 +3,7 @@ obj-$(CONFIG_POWER_RESET_AXXIA) += axxia-reset.o > obj-$(CONFIG_POWER_RESET_BRCMSTB) += brcmstb-reboot.o > obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o > obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o > +obj-$(CONFIG_POWER_RESET_IMX) += imx-snvs-poweroff.o > obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o > obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o > obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o > diff --git a/drivers/power/reset/imx-snvs-poweroff.c b/drivers/power/reset/imx-snvs-poweroff.c > new file mode 100644 > index 0000000..55603ba > --- /dev/null > +++ b/drivers/power/reset/imx-snvs-poweroff.c > @@ -0,0 +1,69 @@ > +/* Power off driver for i.mx6 > + * Copyright (c) 2014, FREESCALE CORPORATION. All rights reserved. > + * > + * based on msm-poweroff.c > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 and > + * only version 2 as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that 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. > + * > + */ > + > +#include <linux/delay.h> Is it really needed? > +#include <linux/err.h> > +#include <linux/init.h> > +#include <linux/io.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/of_address.h> > +#include <linux/platform_device.h> > + > +#include <asm/system_misc.h> Ditto Shawn > + > +static void __iomem *snvs_base; > + > +static void do_imx_poweroff(void) > +{ > + u32 value = readl(snvs_base); > + > + /* set TOP and DP_EN bit */ > + writel(value | 0x60, snvs_base); > +} > + > +static int imx_poweroff_probe(struct platform_device *pdev) > +{ > + snvs_base = of_iomap(pdev->dev.of_node, 0); > + if (!snvs_base) { > + dev_err(&pdev->dev, "failed to get memory\n"); > + return -EIO; > + } > + > + pm_power_off = do_imx_poweroff; > + return 0; > +} > + > +static const struct of_device_id of_imx_poweroff_match[] = { > + { .compatible = "fsl,sec-v4.0-poweroff", }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, of_imx_poweroff_match); > + > +static struct platform_driver imx_poweroff_driver = { > + .probe = imx_poweroff_probe, > + .driver = { > + .name = "imx-snvs-poweroff", > + .of_match_table = of_match_ptr(of_imx_poweroff_match), > + }, > +}; > + > +static int __init imx_poweroff_init(void) > +{ > + return platform_driver_register(&imx_poweroff_driver); > +} > +device_initcall(imx_poweroff_init); > -- > 1.9.1 >
On Wed, Sep 17, 2014 at 10:06:57AM +0800, Shawn Guo wrote: > On Fri, Sep 12, 2014 at 04:48:58PM +0800, Robin Gong wrote: > > Add simple power off driver for i.mx6. > > > > Signed-off-by: Robin Gong <b38343@freescale.com> > > --- > > drivers/power/reset/Kconfig | 6 +++ > > drivers/power/reset/Makefile | 1 + > > drivers/power/reset/imx-snvs-poweroff.c | 69 +++++++++++++++++++++++++++++++++ > > 3 files changed, 76 insertions(+) > > create mode 100644 drivers/power/reset/imx-snvs-poweroff.c > > > > diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig > > index ca41523..c48d9ba 100644 > > --- a/drivers/power/reset/Kconfig > > +++ b/drivers/power/reset/Kconfig > > @@ -45,6 +45,12 @@ config POWER_RESET_HISI > > help > > Reboot support for Hisilicon boards. > > > > +config POWER_RESET_IMX > > + bool "IMX6 power-off driver" > > + depends on POWER_RESET && SOC_IMX6 > > + help > > + Power off support for i.mx6 boards. > > + > > config POWER_RESET_MSM > > bool "Qualcomm MSM power-off driver" > > depends on POWER_RESET && ARCH_QCOM > > diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile > > index a42e70e..2524daf 100644 > > --- a/drivers/power/reset/Makefile > > +++ b/drivers/power/reset/Makefile > > @@ -3,6 +3,7 @@ obj-$(CONFIG_POWER_RESET_AXXIA) += axxia-reset.o > > obj-$(CONFIG_POWER_RESET_BRCMSTB) += brcmstb-reboot.o > > obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o > > obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o > > +obj-$(CONFIG_POWER_RESET_IMX) += imx-snvs-poweroff.o > > obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o > > obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o > > obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o > > diff --git a/drivers/power/reset/imx-snvs-poweroff.c b/drivers/power/reset/imx-snvs-poweroff.c > > new file mode 100644 > > index 0000000..55603ba > > --- /dev/null > > +++ b/drivers/power/reset/imx-snvs-poweroff.c > > @@ -0,0 +1,69 @@ > > +/* Power off driver for i.mx6 > > + * Copyright (c) 2014, FREESCALE CORPORATION. All rights reserved. > > + * > > + * based on msm-poweroff.c > > + * > > + * This program is free software; you can redistribute it and/or modify > > + * it under the terms of the GNU General Public License version 2 and > > + * only version 2 as published by the Free Software Foundation. > > + * > > + * This program is distributed in the hope that 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. > > + * > > + */ > > + > > +#include <linux/delay.h> > > Is it really needed? > > > +#include <linux/err.h> > > +#include <linux/init.h> > > +#include <linux/io.h> > > +#include <linux/kernel.h> > > +#include <linux/module.h> > > +#include <linux/of.h> > > +#include <linux/of_address.h> > > +#include <linux/platform_device.h> > > + > > +#include <asm/system_misc.h> > > Ditto > > Shawn > Yes, will remove both. > > + > > +static void __iomem *snvs_base; > > + > > +static void do_imx_poweroff(void) > > +{ > > + u32 value = readl(snvs_base); > > + > > + /* set TOP and DP_EN bit */ > > + writel(value | 0x60, snvs_base); > > +} > > + > > +static int imx_poweroff_probe(struct platform_device *pdev) > > +{ > > + snvs_base = of_iomap(pdev->dev.of_node, 0); > > + if (!snvs_base) { > > + dev_err(&pdev->dev, "failed to get memory\n"); > > + return -EIO; > > + } > > + > > + pm_power_off = do_imx_poweroff; > > + return 0; > > +} > > + > > +static const struct of_device_id of_imx_poweroff_match[] = { > > + { .compatible = "fsl,sec-v4.0-poweroff", }, > > + {}, > > +}; > > +MODULE_DEVICE_TABLE(of, of_imx_poweroff_match); > > + > > +static struct platform_driver imx_poweroff_driver = { > > + .probe = imx_poweroff_probe, > > + .driver = { > > + .name = "imx-snvs-poweroff", > > + .of_match_table = of_match_ptr(of_imx_poweroff_match), > > + }, > > +}; > > + > > +static int __init imx_poweroff_init(void) > > +{ > > + return platform_driver_register(&imx_poweroff_driver); > > +} > > +device_initcall(imx_poweroff_init); > > -- > > 1.9.1 > >
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index ca41523..c48d9ba 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -45,6 +45,12 @@ config POWER_RESET_HISI help Reboot support for Hisilicon boards. +config POWER_RESET_IMX + bool "IMX6 power-off driver" + depends on POWER_RESET && SOC_IMX6 + help + Power off support for i.mx6 boards. + config POWER_RESET_MSM bool "Qualcomm MSM power-off driver" depends on POWER_RESET && ARCH_QCOM diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile index a42e70e..2524daf 100644 --- a/drivers/power/reset/Makefile +++ b/drivers/power/reset/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_POWER_RESET_AXXIA) += axxia-reset.o obj-$(CONFIG_POWER_RESET_BRCMSTB) += brcmstb-reboot.o obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o +obj-$(CONFIG_POWER_RESET_IMX) += imx-snvs-poweroff.o obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o diff --git a/drivers/power/reset/imx-snvs-poweroff.c b/drivers/power/reset/imx-snvs-poweroff.c new file mode 100644 index 0000000..55603ba --- /dev/null +++ b/drivers/power/reset/imx-snvs-poweroff.c @@ -0,0 +1,69 @@ +/* Power off driver for i.mx6 + * Copyright (c) 2014, FREESCALE CORPORATION. All rights reserved. + * + * based on msm-poweroff.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that 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. + * + */ + +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> + +#include <asm/system_misc.h> + +static void __iomem *snvs_base; + +static void do_imx_poweroff(void) +{ + u32 value = readl(snvs_base); + + /* set TOP and DP_EN bit */ + writel(value | 0x60, snvs_base); +} + +static int imx_poweroff_probe(struct platform_device *pdev) +{ + snvs_base = of_iomap(pdev->dev.of_node, 0); + if (!snvs_base) { + dev_err(&pdev->dev, "failed to get memory\n"); + return -EIO; + } + + pm_power_off = do_imx_poweroff; + return 0; +} + +static const struct of_device_id of_imx_poweroff_match[] = { + { .compatible = "fsl,sec-v4.0-poweroff", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_imx_poweroff_match); + +static struct platform_driver imx_poweroff_driver = { + .probe = imx_poweroff_probe, + .driver = { + .name = "imx-snvs-poweroff", + .of_match_table = of_match_ptr(of_imx_poweroff_match), + }, +}; + +static int __init imx_poweroff_init(void) +{ + return platform_driver_register(&imx_poweroff_driver); +} +device_initcall(imx_poweroff_init);
Add simple power off driver for i.mx6. Signed-off-by: Robin Gong <b38343@freescale.com> --- drivers/power/reset/Kconfig | 6 +++ drivers/power/reset/Makefile | 1 + drivers/power/reset/imx-snvs-poweroff.c | 69 +++++++++++++++++++++++++++++++++ 3 files changed, 76 insertions(+) create mode 100644 drivers/power/reset/imx-snvs-poweroff.c