mxs: delete old kernel versions

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 570 deletions

diff --git a/target/linux/mxs/patches-4.1/102-mxs-add-regulator-driver.patch b/target/linux/mxs/patches-4.1/102-mxs-add-regulator-driver.patch
deleted file mode 100644
index 4690b3c6d4..0000000000
--- a/target/linux/mxs/patches-4.1/102-mxs-add-regulator-driver.patch
+++ /dev/null
@@ -1,570 +0,0 @@
---- a/drivers/regulator/Kconfig
-+++ b/drivers/regulator/Kconfig
-@@ -450,6 +450,14 @@ config REGULATOR_MT6397
- 	  This driver supports the control of different power rails of device
- 	  through regulator interface.
- 
-+config REGULATOR_MXS
-+	tristate "Freescale MXS on-chip regulators"
-+	depends on (MXS_POWER || COMPILE_TEST)
-+	help
-+	  Say y here to support Freescale MXS on-chip regulators.
-+	  It is recommended that this option be enabled on i.MX23,
-+	  i.MX28 platform.
-+
- config REGULATOR_PALMAS
- 	tristate "TI Palmas PMIC Regulators"
- 	depends on MFD_PALMAS
---- a/drivers/regulator/Makefile
-+++ b/drivers/regulator/Makefile
-@@ -60,6 +60,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc137
- obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o
- obj-$(CONFIG_REGULATOR_MC13XXX_CORE) +=  mc13xxx-regulator-core.o
- obj-$(CONFIG_REGULATOR_MT6397)	+= mt6397-regulator.o
-+obj-$(CONFIG_REGULATOR_MXS) += mxs-regulator.o
- obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o
- obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
- obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o
---- /dev/null
-+++ b/drivers/regulator/mxs-regulator.c
-@@ -0,0 +1,540 @@
-+/*
-+ * Freescale MXS on-chip regulators
-+ *
-+ * Embedded Alley Solutions, Inc <source@embeddedalley.com>
-+ *
-+ * Copyright (C) 2014 Stefan Wahren
-+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
-+ * Copyright (C) 2008 Embedded Alley Solutions, Inc All Rights Reserved.
-+ *
-+ * 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/delay.h>
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/kernel.h>
-+#include <linux/mfd/syscon.h>
-+#include <linux/module.h>
-+#include <linux/of.h>
-+#include <linux/of_device.h>
-+#include <linux/platform_device.h>
-+#include <linux/regmap.h>
-+#include <linux/regulator/driver.h>
-+#include <linux/regulator/machine.h>
-+#include <linux/regulator/of_regulator.h>
-+#include <linux/slab.h>
-+
-+/* Powered by linear regulator.  DCDC output is gated off and
-+   the linreg output is equal to the target. */
-+#define HW_POWER_LINREG_DCDC_OFF		1
-+
-+/* Powered by linear regulator.  DCDC output is not gated off
-+   and is ready for the automatic hardware transistion after a 5V
-+   event.  The converters are not enabled when 5V is present. LinReg output
-+   is 25mV below target. */
-+#define HW_POWER_LINREG_DCDC_READY		2
-+
-+/* Powered by DCDC converter and the LinReg is on. LinReg output
-+   is 25mV below target. */
-+#define HW_POWER_DCDC_LINREG_ON			3
-+
-+/* Powered by DCDC converter and the LinReg is off. LinReg output
-+   is 25mV below target. */
-+#define HW_POWER_DCDC_LINREG_OFF		4
-+
-+/* Powered by DCDC converter and the LinReg is ready for the
-+   automatic hardware transfer.  The LinReg output is not enabled and
-+   depends on the 5V presence to enable the LinRegs.  LinReg offset is 25mV
-+   below target. */
-+#define HW_POWER_DCDC_LINREG_READY		5
-+
-+/* Powered by an external source when 5V is present.  This does not
-+   necessarily mean the external source is powered by 5V,but the chip needs
-+   to be aware that 5V is present. */
-+#define HW_POWER_EXTERNAL_SOURCE_5V		6
-+
-+/* Powered by an external source when 5V is not present.This doesn't
-+   necessarily mean the external source is powered by the battery, but the
-+   chip needs to be aware that the battery is present */
-+#define HW_POWER_EXTERNAL_SOURCE_BATTERY	7
-+
-+/* Unknown configuration.  This is an error. */
-+#define HW_POWER_UNKNOWN_SOURCE			8
-+
-+/* TODO: Move power register offsets into header file */
-+#define HW_POWER_5VCTRL		0x00000010
-+#define HW_POWER_VDDDCTRL	0x00000040
-+#define HW_POWER_VDDACTRL	0x00000050
-+#define HW_POWER_VDDIOCTRL	0x00000060
-+#define HW_POWER_MISC		0x00000090
-+#define HW_POWER_STS		0x000000c0
-+
-+#define BM_POWER_STS_VBUSVALID0_STATUS	BIT(15)
-+#define BM_POWER_STS_DC_OK		BIT(9)
-+
-+#define BM_POWER_5VCTRL_ILIMIT_EQ_ZERO	BIT(2)
-+#define BM_POWER_5VCTRL_ENABLE_DCDC	BIT(0)
-+
-+#define BM_POWER_LINREG_OFFSET_DCDC_MODE	BIT(1)
-+
-+#define SHIFT_FREQSEL			4
-+
-+#define BM_POWER_MISC_FREQSEL		(7 << SHIFT_FREQSEL)
-+
-+/* Recommended DC-DC clock source values */
-+#define HW_POWER_MISC_FREQSEL_20000_KHZ	1
-+#define HW_POWER_MISC_FREQSEL_24000_KHZ	2
-+#define HW_POWER_MISC_FREQSEL_19200_KHZ	3
-+
-+#define HW_POWER_MISC_SEL_PLLCLK	BIT(0)
-+
-+/* Regulator IDs */
-+#define MXS_DCDC	1
-+#define MXS_VDDIO	2
-+#define MXS_VDDA	3
-+#define MXS_VDDD	4
-+
-+struct mxs_reg_info {
-+	/* regulator descriptor */
-+	struct regulator_desc desc;
-+
-+	/* regulator control register */
-+	int ctrl_reg;
-+
-+	/* disable DC-DC output */
-+	unsigned int disable_fet_mask;
-+
-+	/* steps between linreg output and DC-DC target */
-+	unsigned int linreg_offset_mask;
-+	u8 linreg_offset_shift;
-+
-+	/* function which determine power source */
-+	u8 (*get_power_source)(struct regulator_dev *);
-+};
-+
-+static inline u8 get_linreg_offset(struct mxs_reg_info *ldo, u32 regs)
-+{
-+	return (regs & ldo->linreg_offset_mask) >> ldo->linreg_offset_shift;
-+}
-+
-+static u8 get_vddio_power_source(struct regulator_dev *reg)
-+{
-+	struct mxs_reg_info *ldo = rdev_get_drvdata(reg);
-+	u32 v5ctrl, status, base;
-+	u8 offset;
-+
-+	if (regmap_read(reg->regmap, HW_POWER_5VCTRL, &v5ctrl))
-+		return HW_POWER_UNKNOWN_SOURCE;
-+
-+	if (regmap_read(reg->regmap, HW_POWER_STS, &status))
-+		return HW_POWER_UNKNOWN_SOURCE;
-+
-+	if (regmap_read(reg->regmap, ldo->ctrl_reg, &base))
-+		return HW_POWER_UNKNOWN_SOURCE;
-+
-+	offset = get_linreg_offset(ldo, base);
-+
-+	/* If VBUS valid then 5 V power supply present */
-+	if (status & BM_POWER_STS_VBUSVALID0_STATUS) {
-+		/* Powered by Linreg, DC-DC is off */
-+		if ((base & ldo->disable_fet_mask) &&
-+		    !(offset & BM_POWER_LINREG_OFFSET_DCDC_MODE)) {
-+			return HW_POWER_LINREG_DCDC_OFF;
-+		}
-+
-+		if (v5ctrl & BM_POWER_5VCTRL_ENABLE_DCDC) {
-+			/* Powered by DC-DC, Linreg is on */
-+			if (offset & BM_POWER_LINREG_OFFSET_DCDC_MODE)
-+				return HW_POWER_DCDC_LINREG_ON;
-+		} else {
-+			/* Powered by Linreg, DC-DC is off */
-+			if (!(offset & BM_POWER_LINREG_OFFSET_DCDC_MODE))
-+				return HW_POWER_LINREG_DCDC_OFF;
-+		}
-+	} else {
-+		/* Powered by DC-DC, Linreg is on */
-+		if (offset & BM_POWER_LINREG_OFFSET_DCDC_MODE)
-+			return HW_POWER_DCDC_LINREG_ON;
-+	}
-+
-+	return HW_POWER_UNKNOWN_SOURCE;
-+}
-+
-+static u8 get_vdda_vddd_power_source(struct regulator_dev *reg)
-+{
-+	struct mxs_reg_info *ldo = rdev_get_drvdata(reg);
-+	struct regulator_desc *desc = &ldo->desc;
-+	u32 v5ctrl, status, base;
-+	u8 offset;
-+
-+	if (regmap_read(reg->regmap, HW_POWER_5VCTRL, &v5ctrl))
-+		return HW_POWER_UNKNOWN_SOURCE;
-+
-+	if (regmap_read(reg->regmap, HW_POWER_STS, &status))
-+		return HW_POWER_UNKNOWN_SOURCE;
-+
-+	if (regmap_read(reg->regmap, ldo->ctrl_reg, &base))
-+		return HW_POWER_UNKNOWN_SOURCE;
-+
-+	offset = get_linreg_offset(ldo, base);
-+
-+	/* DC-DC output is disabled */
-+	if (base & ldo->disable_fet_mask) {
-+		/* Powered by 5 V supply */
-+		if (status & BM_POWER_STS_VBUSVALID0_STATUS)
-+			return HW_POWER_EXTERNAL_SOURCE_5V;
-+
-+		/* Powered by Linreg, DC-DC is off */
-+		if (!(offset & BM_POWER_LINREG_OFFSET_DCDC_MODE))
-+			return HW_POWER_LINREG_DCDC_OFF;
-+	}
-+
-+	/* If VBUS valid then 5 V power supply present */
-+	if (status & BM_POWER_STS_VBUSVALID0_STATUS) {
-+		/* Powered by DC-DC, Linreg is on */
-+		if (v5ctrl & BM_POWER_5VCTRL_ENABLE_DCDC)
-+			return HW_POWER_DCDC_LINREG_ON;
-+
-+		/* Powered by Linreg, DC-DC is off */
-+		return HW_POWER_LINREG_DCDC_OFF;
-+	}
-+
-+	/* DC-DC is on */
-+	if (offset & BM_POWER_LINREG_OFFSET_DCDC_MODE) {
-+		/* Powered by DC-DC, Linreg is on */
-+		if (base & desc->enable_mask)
-+			return HW_POWER_DCDC_LINREG_ON;
-+
-+		/* Powered by DC-DC, Linreg is off */
-+		return HW_POWER_DCDC_LINREG_OFF;
-+	}
-+
-+	return HW_POWER_UNKNOWN_SOURCE;
-+}
-+
-+static int mxs_set_dcdc_freq(struct regulator_dev *reg, u32 hz)
-+{
-+	struct mxs_reg_info *dcdc = rdev_get_drvdata(reg);
-+	u32 val;
-+	int ret;
-+
-+	if (dcdc->desc.id != MXS_DCDC) {
-+		dev_warn(&reg->dev, "Setting switching freq is not supported\n");
-+		return -EINVAL;
-+	}
-+
-+	ret = regmap_read(reg->regmap, HW_POWER_MISC, &val);
-+	if (ret)
-+		return ret;
-+
-+	val &= ~BM_POWER_MISC_FREQSEL;
-+	val &= ~HW_POWER_MISC_SEL_PLLCLK;
-+
-+	/*
-+	 * Select the PLL/PFD based frequency that the DC-DC converter uses.
-+	 * The actual switching frequency driving the power inductor is
-+	 * DCDC_CLK/16. Accept only values recommend by Freescale.
-+	 */
-+	switch (hz) {
-+	case 1200000:
-+		val |= HW_POWER_MISC_FREQSEL_19200_KHZ << SHIFT_FREQSEL;
-+		break;
-+	case 1250000:
-+		val |= HW_POWER_MISC_FREQSEL_20000_KHZ << SHIFT_FREQSEL;
-+		break;
-+	case 1500000:
-+		val |= HW_POWER_MISC_FREQSEL_24000_KHZ << SHIFT_FREQSEL;
-+		break;
-+	default:
-+		dev_warn(&reg->dev, "Switching freq: %u Hz not supported\n",
-+			 hz);
-+		return -EINVAL;
-+	}
-+
-+	/* First program FREQSEL */
-+	ret = regmap_write(reg->regmap, HW_POWER_MISC, val);
-+	if (ret)
-+		return ret;
-+
-+	/* then set PLL as clock for DC-DC converter */
-+	val |= HW_POWER_MISC_SEL_PLLCLK;
-+
-+	return regmap_write(reg->regmap, HW_POWER_MISC, val);
-+}
-+
-+static int mxs_ldo_set_voltage_sel(struct regulator_dev *reg, unsigned sel)
-+{
-+	struct mxs_reg_info *ldo = rdev_get_drvdata(reg);
-+	struct regulator_desc *desc = &ldo->desc;
-+	u32 status = 0;
-+	int timeout;
-+	int ret;
-+
-+	ret = regmap_update_bits(reg->regmap, desc->vsel_reg, desc->vsel_mask,
-+				 sel);
-+	if (ret)
-+		return ret;
-+
-+	if (ldo->get_power_source) {
-+		switch (ldo->get_power_source(reg)) {
-+		case HW_POWER_LINREG_DCDC_OFF:
-+		case HW_POWER_LINREG_DCDC_READY:
-+		case HW_POWER_EXTERNAL_SOURCE_5V:
-+			/*
-+			 * Since the DC-DC converter is off we can't
-+			 * trigger on DC_OK. So wait at least 1 ms
-+			 * for stabilization.
-+			 */
-+			usleep_range(1000, 2000);
-+			return 0;
-+		}
-+	}
-+
-+	/* Make sure DC_OK has changed */
-+	usleep_range(15, 20);
-+
-+	for (timeout = 0; timeout < 20; timeout++) {
-+		ret = regmap_read(reg->regmap, HW_POWER_STS, &status);
-+
-+		if (ret)
-+			break;
-+
-+		/* DC-DC converter control loop has stabilized */
-+		if (status & BM_POWER_STS_DC_OK)
-+			return 0;
-+
-+		udelay(1);
-+	}
-+
-+	if (!ret)
-+		dev_warn_ratelimited(&reg->dev, "%s: timeout status=0x%08x\n",
-+				     __func__, status);
-+
-+	msleep(20);
-+
-+	return -ETIMEDOUT;
-+}
-+
-+static int mxs_ldo_is_enabled(struct regulator_dev *reg)
-+{
-+	struct mxs_reg_info *ldo = rdev_get_drvdata(reg);
-+
-+	if (ldo->get_power_source) {
-+		switch (ldo->get_power_source(reg)) {
-+		case HW_POWER_LINREG_DCDC_OFF:
-+		case HW_POWER_LINREG_DCDC_READY:
-+		case HW_POWER_DCDC_LINREG_ON:
-+			return 1;
-+		}
-+	}
-+
-+	return 0;
-+}
-+
-+static struct regulator_ops mxs_dcdc_ops = {
-+	.is_enabled		= regulator_is_enabled_regmap,
-+};
-+
-+static struct regulator_ops mxs_ldo_ops = {
-+	.list_voltage		= regulator_list_voltage_linear,
-+	.map_voltage		= regulator_map_voltage_linear,
-+	.set_voltage_sel	= mxs_ldo_set_voltage_sel,
-+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
-+	.is_enabled		= mxs_ldo_is_enabled,
-+};
-+
-+static const struct mxs_reg_info mxs_info_dcdc = {
-+	.desc = {
-+		.name = "dcdc",
-+		.id = MXS_DCDC,
-+		.type = REGULATOR_VOLTAGE,
-+		.owner = THIS_MODULE,
-+		.ops = &mxs_dcdc_ops,
-+		.enable_reg = HW_POWER_STS,
-+		.enable_mask = (1 << 0),
-+	},
-+};
-+
-+static const struct mxs_reg_info imx23_info_vddio = {
-+	.desc = {
-+		.name = "vddio",
-+		.id = MXS_VDDIO,
-+		.type = REGULATOR_VOLTAGE,
-+		.owner = THIS_MODULE,
-+		.n_voltages = 0x20,
-+		.uV_step = 25000,
-+		.linear_min_sel = 0,
-+		.min_uV = 2800000,
-+		.vsel_reg = HW_POWER_VDDIOCTRL,
-+		.vsel_mask = 0x1f,
-+		.ops = &mxs_ldo_ops,
-+	},
-+	.ctrl_reg = HW_POWER_VDDIOCTRL,
-+	.disable_fet_mask = 1 << 16,
-+	.linreg_offset_mask = 3 << 12,
-+	.linreg_offset_shift = 12,
-+	.get_power_source = get_vddio_power_source,
-+};
-+
-+static const struct mxs_reg_info imx28_info_vddio = {
-+	.desc = {
-+		.name = "vddio",
-+		.id = MXS_VDDIO,
-+		.type = REGULATOR_VOLTAGE,
-+		.owner = THIS_MODULE,
-+		.n_voltages = 0x11,
-+		.uV_step = 50000,
-+		.linear_min_sel = 0,
-+		.min_uV = 2800000,
-+		.vsel_reg = HW_POWER_VDDIOCTRL,
-+		.vsel_mask = 0x1f,
-+		.ops = &mxs_ldo_ops,
-+	},
-+	.ctrl_reg = HW_POWER_VDDIOCTRL,
-+	.disable_fet_mask = 1 << 16,
-+	.linreg_offset_mask = 3 << 12,
-+	.linreg_offset_shift = 12,
-+	.get_power_source = get_vddio_power_source,
-+};
-+
-+static const struct mxs_reg_info mxs_info_vdda = {
-+	.desc = {
-+		.name = "vdda",
-+		.id = MXS_VDDA,
-+		.type = REGULATOR_VOLTAGE,
-+		.owner = THIS_MODULE,
-+		.n_voltages = 0x20,
-+		.uV_step = 25000,
-+		.linear_min_sel = 0,
-+		.min_uV = 1500000,
-+		.vsel_reg = HW_POWER_VDDACTRL,
-+		.vsel_mask = 0x1f,
-+		.ops = &mxs_ldo_ops,
-+		.enable_mask = (1 << 17),
-+	},
-+	.ctrl_reg = HW_POWER_VDDACTRL,
-+	.disable_fet_mask = 1 << 16,
-+	.linreg_offset_mask = 3 << 12,
-+	.linreg_offset_shift = 12,
-+	.get_power_source = get_vdda_vddd_power_source,
-+};
-+
-+static const struct mxs_reg_info mxs_info_vddd = {
-+	.desc = {
-+		.name = "vddd",
-+		.id = MXS_VDDD,
-+		.type = REGULATOR_VOLTAGE,
-+		.owner = THIS_MODULE,
-+		.n_voltages = 0x20,
-+		.uV_step = 25000,
-+		.linear_min_sel = 0,
-+		.min_uV = 800000,
-+		.vsel_reg = HW_POWER_VDDDCTRL,
-+		.vsel_mask = 0x1f,
-+		.ops = &mxs_ldo_ops,
-+		.enable_mask = (1 << 21),
-+	},
-+	.ctrl_reg = HW_POWER_VDDDCTRL,
-+	.disable_fet_mask = 1 << 20,
-+	.linreg_offset_mask = 3 << 16,
-+	.linreg_offset_shift = 16,
-+	.get_power_source = get_vdda_vddd_power_source,
-+};
-+
-+static const struct of_device_id of_mxs_regulator_match[] = {
-+	{ .compatible = "fsl,imx23-dcdc",  .data = &mxs_info_dcdc },
-+	{ .compatible = "fsl,imx28-dcdc",  .data = &mxs_info_dcdc },
-+	{ .compatible = "fsl,imx23-vddio", .data = &imx23_info_vddio },
-+	{ .compatible = "fsl,imx23-vdda",  .data = &mxs_info_vdda },
-+	{ .compatible = "fsl,imx23-vddd",  .data = &mxs_info_vddd },
-+	{ .compatible = "fsl,imx28-vddio", .data = &imx28_info_vddio },
-+	{ .compatible = "fsl,imx28-vdda",  .data = &mxs_info_vdda },
-+	{ .compatible = "fsl,imx28-vddd",  .data = &mxs_info_vddd },
-+	{ /* end */ }
-+};
-+MODULE_DEVICE_TABLE(of, of_mxs_regulator_match);
-+
-+static int mxs_regulator_probe(struct platform_device *pdev)
-+{
-+	struct device *dev = &pdev->dev;
-+	const struct of_device_id *match;
-+	struct device_node *parent_np;
-+	struct regulator_dev *rdev = NULL;
-+	struct mxs_reg_info *info;
-+	struct regulator_init_data *initdata;
-+	struct regulator_config config = { };
-+	u32 switch_freq;
-+
-+	match = of_match_device(of_mxs_regulator_match, dev);
-+	if (!match) {
-+		/* We do not expect this to happen */
-+		dev_err(dev, "%s: Unable to match device\n", __func__);
-+		return -ENODEV;
-+	}
-+
-+	info = devm_kmemdup(dev, match->data, sizeof(struct mxs_reg_info),
-+			    GFP_KERNEL);
-+	if (!info)
-+		return -ENOMEM;
-+
-+	initdata = of_get_regulator_init_data(dev, dev->of_node, &info->desc);
-+	if (!initdata) {
-+		dev_err(dev, "missing regulator init data\n");
-+		return -EINVAL;
-+	}
-+
-+	parent_np = of_get_parent(dev->of_node);
-+	if (!parent_np)
-+		return -ENODEV;
-+	config.regmap = syscon_node_to_regmap(parent_np);
-+	of_node_put(parent_np);
-+	if (IS_ERR(config.regmap))
-+		return PTR_ERR(config.regmap);
-+
-+	config.dev = dev;
-+	config.init_data = initdata;
-+	config.driver_data = info;
-+	config.of_node = dev->of_node;
-+
-+	rdev = devm_regulator_register(dev, &info->desc, &config);
-+	if (IS_ERR(rdev)) {
-+		int ret = PTR_ERR(rdev);
-+
-+		dev_err(dev, "%s: failed to register regulator(%d)\n",
-+			__func__, ret);
-+		return ret;
-+	}
-+
-+	if (!of_property_read_u32(dev->of_node, "switching-frequency",
-+				  &switch_freq))
-+		mxs_set_dcdc_freq(rdev, switch_freq);
-+
-+	platform_set_drvdata(pdev, rdev);
-+
-+	return 0;
-+}
-+
-+static struct platform_driver mxs_regulator_driver = {
-+	.driver = {
-+		.name	= "mxs_regulator",
-+		.of_match_table = of_mxs_regulator_match,
-+	},
-+	.probe	= mxs_regulator_probe,
-+};
-+
-+module_platform_driver(mxs_regulator_driver);
-+
-+MODULE_AUTHOR("Stefan Wahren <stefan.wahren@i2se.com>");
-+MODULE_DESCRIPTION("Freescale MXS regulators");
-+MODULE_LICENSE("GPL v2");
-+MODULE_ALIAS("platform:mxs_regulator");