| Message ID | 20180628150850.15358-3-vkoul@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Sebastian, On 28-06-18, 20:38, Vinod Koul wrote: > Add support Qualcomm PM8xxx PON which is responsible for reboot > mode support. Any feedback for this patch/series? > Co-developed-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Signed-off-by: Vinod Koul <vkoul@kernel.org> > --- > drivers/power/reset/Kconfig | 11 +++++ > drivers/power/reset/Makefile | 1 + > drivers/power/reset/qcom-pon.c | 91 ++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 103 insertions(+) > create mode 100644 drivers/power/reset/qcom-pon.c > > diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig > index df58fc878b3e..6533aa560aa1 100644 > --- a/drivers/power/reset/Kconfig > +++ b/drivers/power/reset/Kconfig > @@ -104,6 +104,17 @@ config POWER_RESET_MSM > help > Power off and restart support for Qualcomm boards. > > +config POWER_RESET_QCOM_PON > + tristate "Qualcomm power-on driver" > + depends on ARCH_QCOM > + depends on MFD_SPMI_PMIC > + select REBOOT_MODE > + help > + Power On support for Qualcomm boards. > + If you have a Qualcomm platform and need support for > + power-on and reboot reason, Say Y. > + If unsure, Say N. > + > config POWER_RESET_OCELOT_RESET > bool "Microsemi Ocelot reset driver" > depends on MSCC_OCELOT || COMPILE_TEST > diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile > index 7778c7485cf1..0aebee954ac1 100644 > --- a/drivers/power/reset/Makefile > +++ b/drivers/power/reset/Makefile > @@ -11,6 +11,7 @@ obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o > obj-$(CONFIG_POWER_RESET_GPIO_RESTART) += gpio-restart.o > obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o > obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o > +obj-$(CONFIG_POWER_RESET_QCOM_PON) += qcom-pon.o > obj-$(CONFIG_POWER_RESET_OCELOT_RESET) += ocelot-reset.o > obj-$(CONFIG_POWER_RESET_PIIX4_POWEROFF) += piix4-poweroff.o > obj-$(CONFIG_POWER_RESET_LTC2952) += ltc2952-poweroff.o > diff --git a/drivers/power/reset/qcom-pon.c b/drivers/power/reset/qcom-pon.c > new file mode 100644 > index 000000000000..0c4caaa7e88f > --- /dev/null > +++ b/drivers/power/reset/qcom-pon.c > @@ -0,0 +1,91 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (c) 2017-18 Linaro Limited > + > +#include <linux/delay.h> > +#include <linux/errno.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/of_platform.h> > +#include <linux/platform_device.h> > +#include <linux/reboot.h> > +#include <linux/reboot-mode.h> > +#include <linux/regmap.h> > + > +#define PON_SOFT_RB_SPARE 0x8f > + > +struct pm8916_pon { > + struct device *dev; > + struct regmap *regmap; > + u32 baseaddr; > + struct reboot_mode_driver reboot_mode; > +}; > + > +static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot, > + unsigned int magic) > +{ > + struct pm8916_pon *pon = container_of > + (reboot, struct pm8916_pon, reboot_mode); > + int ret; > + > + ret = regmap_update_bits(pon->regmap, > + pon->baseaddr + PON_SOFT_RB_SPARE, > + 0xfc, magic << 2); > + if (ret < 0) > + dev_err(pon->dev, "update reboot mode bits failed\n"); > + > + return ret; > +} > + > +static int pm8916_pon_probe(struct platform_device *pdev) > +{ > + struct pm8916_pon *pon; > + int error; > + > + pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL); > + if (!pon) > + return -ENOMEM; > + > + pon->dev = &pdev->dev; > + > + pon->regmap = dev_get_regmap(pdev->dev.parent, NULL); > + if (!pon->regmap) { > + dev_err(&pdev->dev, "failed to locate regmap\n"); > + return -ENODEV; > + } > + > + error = of_property_read_u32(pdev->dev.of_node, "reg", > + &pon->baseaddr); > + if (error) > + return error; > + > + pon->reboot_mode.dev = &pdev->dev; > + pon->reboot_mode.write = pm8916_reboot_mode_write; > + error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode); > + if (error) { > + dev_err(&pdev->dev, "can't register reboot mode\n"); > + return error; > + } > + > + platform_set_drvdata(pdev, pon); > + > + return devm_of_platform_populate(&pdev->dev); > +} > + > +static const struct of_device_id pm8916_pon_id_table[] = { > + { .compatible = "qcom,pm8916-pon" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, pm8916_pon_id_table); > + > +static struct platform_driver pm8916_pon_driver = { > + .probe = pm8916_pon_probe, > + .driver = { > + .name = "pm8916-pon", > + .of_match_table = of_match_ptr(pm8916_pon_id_table), > + }, > +}; > +module_platform_driver(pm8916_pon_driver); > + > +MODULE_DESCRIPTION("pm8916 Power On driver"); > +MODULE_LICENSE("GPL v2"); > -- > 2.14.4
Hi, On Thu, Jun 28, 2018 at 08:38:46PM +0530, Vinod Koul wrote: > Add support Qualcomm PM8xxx PON which is responsible for reboot > mode support. > > Co-developed-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Signed-off-by: Vinod Koul <vkoul@kernel.org> > --- Thanks, queued to power-supply-next. -- Sebastian > drivers/power/reset/Kconfig | 11 +++++ > drivers/power/reset/Makefile | 1 + > drivers/power/reset/qcom-pon.c | 91 ++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 103 insertions(+) > create mode 100644 drivers/power/reset/qcom-pon.c > > diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig > index df58fc878b3e..6533aa560aa1 100644 > --- a/drivers/power/reset/Kconfig > +++ b/drivers/power/reset/Kconfig > @@ -104,6 +104,17 @@ config POWER_RESET_MSM > help > Power off and restart support for Qualcomm boards. > > +config POWER_RESET_QCOM_PON > + tristate "Qualcomm power-on driver" > + depends on ARCH_QCOM > + depends on MFD_SPMI_PMIC > + select REBOOT_MODE > + help > + Power On support for Qualcomm boards. > + If you have a Qualcomm platform and need support for > + power-on and reboot reason, Say Y. > + If unsure, Say N. > + > config POWER_RESET_OCELOT_RESET > bool "Microsemi Ocelot reset driver" > depends on MSCC_OCELOT || COMPILE_TEST > diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile > index 7778c7485cf1..0aebee954ac1 100644 > --- a/drivers/power/reset/Makefile > +++ b/drivers/power/reset/Makefile > @@ -11,6 +11,7 @@ obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o > obj-$(CONFIG_POWER_RESET_GPIO_RESTART) += gpio-restart.o > obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o > obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o > +obj-$(CONFIG_POWER_RESET_QCOM_PON) += qcom-pon.o > obj-$(CONFIG_POWER_RESET_OCELOT_RESET) += ocelot-reset.o > obj-$(CONFIG_POWER_RESET_PIIX4_POWEROFF) += piix4-poweroff.o > obj-$(CONFIG_POWER_RESET_LTC2952) += ltc2952-poweroff.o > diff --git a/drivers/power/reset/qcom-pon.c b/drivers/power/reset/qcom-pon.c > new file mode 100644 > index 000000000000..0c4caaa7e88f > --- /dev/null > +++ b/drivers/power/reset/qcom-pon.c > @@ -0,0 +1,91 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (c) 2017-18 Linaro Limited > + > +#include <linux/delay.h> > +#include <linux/errno.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/of_platform.h> > +#include <linux/platform_device.h> > +#include <linux/reboot.h> > +#include <linux/reboot-mode.h> > +#include <linux/regmap.h> > + > +#define PON_SOFT_RB_SPARE 0x8f > + > +struct pm8916_pon { > + struct device *dev; > + struct regmap *regmap; > + u32 baseaddr; > + struct reboot_mode_driver reboot_mode; > +}; > + > +static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot, > + unsigned int magic) > +{ > + struct pm8916_pon *pon = container_of > + (reboot, struct pm8916_pon, reboot_mode); > + int ret; > + > + ret = regmap_update_bits(pon->regmap, > + pon->baseaddr + PON_SOFT_RB_SPARE, > + 0xfc, magic << 2); > + if (ret < 0) > + dev_err(pon->dev, "update reboot mode bits failed\n"); > + > + return ret; > +} > + > +static int pm8916_pon_probe(struct platform_device *pdev) > +{ > + struct pm8916_pon *pon; > + int error; > + > + pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL); > + if (!pon) > + return -ENOMEM; > + > + pon->dev = &pdev->dev; > + > + pon->regmap = dev_get_regmap(pdev->dev.parent, NULL); > + if (!pon->regmap) { > + dev_err(&pdev->dev, "failed to locate regmap\n"); > + return -ENODEV; > + } > + > + error = of_property_read_u32(pdev->dev.of_node, "reg", > + &pon->baseaddr); > + if (error) > + return error; > + > + pon->reboot_mode.dev = &pdev->dev; > + pon->reboot_mode.write = pm8916_reboot_mode_write; > + error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode); > + if (error) { > + dev_err(&pdev->dev, "can't register reboot mode\n"); > + return error; > + } > + > + platform_set_drvdata(pdev, pon); > + > + return devm_of_platform_populate(&pdev->dev); > +} > + > +static const struct of_device_id pm8916_pon_id_table[] = { > + { .compatible = "qcom,pm8916-pon" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, pm8916_pon_id_table); > + > +static struct platform_driver pm8916_pon_driver = { > + .probe = pm8916_pon_probe, > + .driver = { > + .name = "pm8916-pon", > + .of_match_table = of_match_ptr(pm8916_pon_id_table), > + }, > +}; > +module_platform_driver(pm8916_pon_driver); > + > +MODULE_DESCRIPTION("pm8916 Power On driver"); > +MODULE_LICENSE("GPL v2"); > -- > 2.14.4 >
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index df58fc878b3e..6533aa560aa1 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -104,6 +104,17 @@ config POWER_RESET_MSM help Power off and restart support for Qualcomm boards. +config POWER_RESET_QCOM_PON + tristate "Qualcomm power-on driver" + depends on ARCH_QCOM + depends on MFD_SPMI_PMIC + select REBOOT_MODE + help + Power On support for Qualcomm boards. + If you have a Qualcomm platform and need support for + power-on and reboot reason, Say Y. + If unsure, Say N. + config POWER_RESET_OCELOT_RESET bool "Microsemi Ocelot reset driver" depends on MSCC_OCELOT || COMPILE_TEST diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile index 7778c7485cf1..0aebee954ac1 100644 --- a/drivers/power/reset/Makefile +++ b/drivers/power/reset/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o obj-$(CONFIG_POWER_RESET_GPIO_RESTART) += gpio-restart.o obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o +obj-$(CONFIG_POWER_RESET_QCOM_PON) += qcom-pon.o obj-$(CONFIG_POWER_RESET_OCELOT_RESET) += ocelot-reset.o obj-$(CONFIG_POWER_RESET_PIIX4_POWEROFF) += piix4-poweroff.o obj-$(CONFIG_POWER_RESET_LTC2952) += ltc2952-poweroff.o diff --git a/drivers/power/reset/qcom-pon.c b/drivers/power/reset/qcom-pon.c new file mode 100644 index 000000000000..0c4caaa7e88f --- /dev/null +++ b/drivers/power/reset/qcom-pon.c @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2017-18 Linaro Limited + +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/reboot.h> +#include <linux/reboot-mode.h> +#include <linux/regmap.h> + +#define PON_SOFT_RB_SPARE 0x8f + +struct pm8916_pon { + struct device *dev; + struct regmap *regmap; + u32 baseaddr; + struct reboot_mode_driver reboot_mode; +}; + +static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot, + unsigned int magic) +{ + struct pm8916_pon *pon = container_of + (reboot, struct pm8916_pon, reboot_mode); + int ret; + + ret = regmap_update_bits(pon->regmap, + pon->baseaddr + PON_SOFT_RB_SPARE, + 0xfc, magic << 2); + if (ret < 0) + dev_err(pon->dev, "update reboot mode bits failed\n"); + + return ret; +} + +static int pm8916_pon_probe(struct platform_device *pdev) +{ + struct pm8916_pon *pon; + int error; + + pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL); + if (!pon) + return -ENOMEM; + + pon->dev = &pdev->dev; + + pon->regmap = dev_get_regmap(pdev->dev.parent, NULL); + if (!pon->regmap) { + dev_err(&pdev->dev, "failed to locate regmap\n"); + return -ENODEV; + } + + error = of_property_read_u32(pdev->dev.of_node, "reg", + &pon->baseaddr); + if (error) + return error; + + pon->reboot_mode.dev = &pdev->dev; + pon->reboot_mode.write = pm8916_reboot_mode_write; + error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode); + if (error) { + dev_err(&pdev->dev, "can't register reboot mode\n"); + return error; + } + + platform_set_drvdata(pdev, pon); + + return devm_of_platform_populate(&pdev->dev); +} + +static const struct of_device_id pm8916_pon_id_table[] = { + { .compatible = "qcom,pm8916-pon" }, + { } +}; +MODULE_DEVICE_TABLE(of, pm8916_pon_id_table); + +static struct platform_driver pm8916_pon_driver = { + .probe = pm8916_pon_probe, + .driver = { + .name = "pm8916-pon", + .of_match_table = of_match_ptr(pm8916_pon_id_table), + }, +}; +module_platform_driver(pm8916_pon_driver); + +MODULE_DESCRIPTION("pm8916 Power On driver"); +MODULE_LICENSE("GPL v2");