diff options
Diffstat (limited to 'target/linux/mxs/patches-4.1/101-mxs-add-mxs_power.patch')
| -rw-r--r-- | target/linux/mxs/patches-4.1/101-mxs-add-mxs_power.patch | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/target/linux/mxs/patches-4.1/101-mxs-add-mxs_power.patch b/target/linux/mxs/patches-4.1/101-mxs-add-mxs_power.patch deleted file mode 100644 index 104736c7c0..0000000000 --- a/target/linux/mxs/patches-4.1/101-mxs-add-mxs_power.patch +++ /dev/null @@ -1,166 +0,0 @@ ---- a/drivers/power/Kconfig -+++ b/drivers/power/Kconfig -@@ -43,6 +43,14 @@ config MAX8925_POWER - Say Y here to enable support for the battery charger in the Maxim - MAX8925 PMIC. - -+config MXS_POWER -+ tristate "Freescale MXS power subsystem support" -+ depends on ARCH_MXS || COMPILE_TEST -+ help -+ Say Y here to enable support for the Freescale i.MX23/i.MX28 -+ power subsystem. This is a requirement to get access to on-chip -+ regulators, battery charger and many more. -+ - config WM831X_BACKUP - tristate "WM831X backup battery charger support" - depends on MFD_WM831X ---- a/drivers/power/Makefile -+++ b/drivers/power/Makefile -@@ -10,6 +10,7 @@ obj-$(CONFIG_GENERIC_ADC_BATTERY) += gen - obj-$(CONFIG_PDA_POWER) += pda_power.o - obj-$(CONFIG_APM_POWER) += apm_power.o - obj-$(CONFIG_MAX8925_POWER) += max8925_power.o -+obj-$(CONFIG_MXS_POWER) += mxs_power.o - obj-$(CONFIG_WM831X_BACKUP) += wm831x_backup.o - obj-$(CONFIG_WM831X_POWER) += wm831x_power.o - obj-$(CONFIG_WM8350_POWER) += wm8350_power.o ---- /dev/null -+++ b/drivers/power/mxs_power.c -@@ -0,0 +1,136 @@ -+/* -+ * Freescale MXS power subsystem -+ * -+ * Copyright (C) 2014 Stefan Wahren -+ * -+ * Inspired by imx-bootlets -+ */ -+ -+/* -+ * The code contained herein is licensed under the GNU General Public -+ * License. You may obtain a copy of the GNU General Public License -+ * Version 2 or later at the following locations: -+ * -+ * http://www.opensource.org/licenses/gpl-license.html -+ * http://www.gnu.org/copyleft/gpl.html -+ */ -+ -+#include <linux/device.h> -+#include <linux/err.h> -+#include <linux/io.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/power_supply.h> -+#include <linux/stmp_device.h> -+#include <linux/types.h> -+ -+#define BM_POWER_CTRL_POLARITY_VBUSVALID BIT(5) -+#define BM_POWER_CTRL_VBUSVALID_IRQ BIT(4) -+#define BM_POWER_CTRL_ENIRQ_VBUS_VALID BIT(3) -+ -+#define HW_POWER_5VCTRL_OFFSET 0x10 -+ -+#define BM_POWER_5VCTRL_VBUSVALID_THRESH (7 << 8) -+#define BM_POWER_5VCTRL_PWDN_5VBRNOUT BIT(7) -+#define BM_POWER_5VCTRL_ENABLE_LINREG_ILIMIT BIT(6) -+#define BM_POWER_5VCTRL_VBUSVALID_5VDETECT BIT(4) -+ -+#define HW_POWER_5VCTRL_VBUSVALID_THRESH_4_40V (5 << 8) -+ -+struct mxs_power_data { -+ void __iomem *base_addr; -+ struct power_supply *ac; -+}; -+ -+static enum power_supply_property mxs_power_ac_props[] = { -+ POWER_SUPPLY_PROP_ONLINE, -+}; -+ -+static int mxs_power_ac_get_property(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ int ret = 0; -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_ONLINE: -+ val->intval = 1; -+ break; -+ default: -+ ret = -EINVAL; -+ break; -+ } -+ return ret; -+} -+ -+static const struct of_device_id of_mxs_power_match[] = { -+ { .compatible = "fsl,imx23-power" }, -+ { .compatible = "fsl,imx28-power" }, -+ { /* end */ } -+}; -+MODULE_DEVICE_TABLE(of, of_mxs_power_match); -+ -+static const struct power_supply_desc ac_desc = { -+ .properties = mxs_power_ac_props, -+ .num_properties = ARRAY_SIZE(mxs_power_ac_props), -+ .get_property = mxs_power_ac_get_property, -+ .name = "ac", -+ .type = POWER_SUPPLY_TYPE_MAINS, -+}; -+ -+static int mxs_power_probe(struct platform_device *pdev) -+{ -+ struct device *dev = &pdev->dev; -+ struct device_node *np = dev->of_node; -+ struct resource *res; -+ struct mxs_power_data *data; -+ struct power_supply_config psy_cfg = {}; -+ void __iomem *v5ctrl_addr; -+ -+ if (!np) { -+ dev_err(dev, "missing device tree\n"); -+ return -EINVAL; -+ } -+ -+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); -+ if (!data) -+ return -ENOMEM; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ data->base_addr = devm_ioremap_resource(dev, res); -+ if (IS_ERR(data->base_addr)) -+ return PTR_ERR(data->base_addr); -+ -+ psy_cfg.drv_data = data; -+ -+ data->ac = devm_power_supply_register(dev, &ac_desc, &psy_cfg); -+ if (IS_ERR(data->ac)) -+ return PTR_ERR(data->ac); -+ -+ platform_set_drvdata(pdev, data); -+ -+ v5ctrl_addr = data->base_addr + HW_POWER_5VCTRL_OFFSET; -+ -+ /* Make sure the current limit of the linregs are disabled. */ -+ writel(BM_POWER_5VCTRL_ENABLE_LINREG_ILIMIT, -+ v5ctrl_addr + STMP_OFFSET_REG_CLR); -+ -+ return of_platform_populate(np, NULL, NULL, dev); -+} -+ -+static struct platform_driver mxs_power_driver = { -+ .driver = { -+ .name = "mxs_power", -+ .of_match_table = of_mxs_power_match, -+ }, -+ .probe = mxs_power_probe, -+}; -+ -+module_platform_driver(mxs_power_driver); -+ -+MODULE_AUTHOR("Stefan Wahren <stefan.wahren@i2se.com>"); -+MODULE_DESCRIPTION("Freescale MXS power subsystem"); -+MODULE_LICENSE("GPL v2"); |