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-rw-r--r--target/linux/sunxi/patches-3.18/130-input-add-axp20x-pek.patch332
1 files changed, 0 insertions, 332 deletions
diff --git a/target/linux/sunxi/patches-3.18/130-input-add-axp20x-pek.patch b/target/linux/sunxi/patches-3.18/130-input-add-axp20x-pek.patch
deleted file mode 100644
index 28ed6a3b2d..0000000000
--- a/target/linux/sunxi/patches-3.18/130-input-add-axp20x-pek.patch
+++ /dev/null
@@ -1,332 +0,0 @@
-From 63d559304a15ffead2fa1014b93dbcabf516c257 Mon Sep 17 00:00:00 2001
-From: Carlo Caione <carlo@caione.org>
-Date: Mon, 19 May 2014 21:47:45 +0200
-Subject: [PATCH] input: misc: Add driver for AXP20x Power Enable Key
-
-This patch add support for the Power Enable Key found on MFD AXP202 and
-AXP209. Besides the basic support for the button, the driver adds two
-entries in sysfs to configure the time delay for power on/off.
-
-Signed-off-by: Carlo Caione <carlo@caione.org>
-Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
----
- drivers/input/misc/Kconfig | 11 ++
- drivers/input/misc/Makefile | 1 +
- drivers/input/misc/axp20x-pek.c | 281 ++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 293 insertions(+)
- create mode 100644 drivers/input/misc/axp20x-pek.c
-
---- a/drivers/input/misc/Kconfig
-+++ b/drivers/input/misc/Kconfig
-@@ -404,6 +404,17 @@ config INPUT_RETU_PWRBUTTON
- To compile this driver as a module, choose M here. The module will
- be called retu-pwrbutton.
-
-+config INPUT_AXP20X_PEK
-+ tristate "X-Powers AXP20X power button driver"
-+ depends on MFD_AXP20X
-+ help
-+ Say Y here if you want to enable power key reporting via the
-+ AXP20X PMIC.
-+
-+ To compile this driver as a module, choose M here. The module will
-+ be called axp20x-pek.
-+
-+
- config INPUT_TWL4030_PWRBUTTON
- tristate "TWL4030 Power button Driver"
- depends on TWL4030_CORE
---- a/drivers/input/misc/Makefile
-+++ b/drivers/input/misc/Makefile
-@@ -54,6 +54,7 @@ obj-$(CONFIG_INPUT_POWERMATE) += powerm
- obj-$(CONFIG_INPUT_PWM_BEEPER) += pwm-beeper.o
- obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
- obj-$(CONFIG_INPUT_RETU_PWRBUTTON) += retu-pwrbutton.o
-+obj-$(CONFIG_INPUT_AXP20X_PEK) += axp20x-pek.o
- obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
- obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
- obj-$(CONFIG_INPUT_SIRFSOC_ONKEY) += sirfsoc-onkey.o
---- /dev/null
-+++ b/drivers/input/misc/axp20x-pek.c
-@@ -0,0 +1,281 @@
-+/*
-+ * axp20x power button driver.
-+ *
-+ * Copyright (C) 2013 Carlo Caione <carlo@caione.org>
-+ *
-+ * This file is subject to the terms and conditions of the GNU General
-+ * Public License. See the file "COPYING" in the main directory of this
-+ * archive for more details.
-+ *
-+ * 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/errno.h>
-+#include <linux/irq.h>
-+#include <linux/init.h>
-+#include <linux/input.h>
-+#include <linux/interrupt.h>
-+#include <linux/kernel.h>
-+#include <linux/mfd/axp20x.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/regmap.h>
-+#include <linux/slab.h>
-+
-+#define AXP20X_PEK_STARTUP_MASK (0xc0)
-+#define AXP20X_PEK_SHUTDOWN_MASK (0x03)
-+
-+struct axp20x_pek {
-+ struct axp20x_dev *axp20x;
-+ struct input_dev *input;
-+ int irq_dbr;
-+ int irq_dbf;
-+};
-+
-+struct axp20x_time {
-+ unsigned int time;
-+ unsigned int idx;
-+};
-+
-+static const struct axp20x_time startup_time[] = {
-+ { .time = 128, .idx = 0 },
-+ { .time = 1000, .idx = 2 },
-+ { .time = 3000, .idx = 1 },
-+ { .time = 2000, .idx = 3 },
-+};
-+
-+static const struct axp20x_time shutdown_time[] = {
-+ { .time = 4000, .idx = 0 },
-+ { .time = 6000, .idx = 1 },
-+ { .time = 8000, .idx = 2 },
-+ { .time = 10000, .idx = 3 },
-+};
-+
-+struct axp20x_pek_ext_attr {
-+ const struct axp20x_time *p_time;
-+ unsigned int mask;
-+};
-+
-+static struct axp20x_pek_ext_attr axp20x_pek_startup_ext_attr = {
-+ .p_time = startup_time,
-+ .mask = AXP20X_PEK_STARTUP_MASK,
-+};
-+
-+static struct axp20x_pek_ext_attr axp20x_pek_shutdown_ext_attr = {
-+ .p_time = shutdown_time,
-+ .mask = AXP20X_PEK_SHUTDOWN_MASK,
-+};
-+
-+static struct axp20x_pek_ext_attr *get_axp_ext_attr(struct device_attribute *attr)
-+{
-+ return container_of(attr, struct dev_ext_attribute, attr)->var;
-+}
-+
-+static ssize_t axp20x_show_ext_attr(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev);
-+ struct axp20x_pek_ext_attr *axp20x_ea = get_axp_ext_attr(attr);
-+ unsigned int val;
-+ int ret, i;
-+
-+ ret = regmap_read(axp20x_pek->axp20x->regmap, AXP20X_PEK_KEY, &val);
-+ if (ret != 0)
-+ return ret;
-+
-+ val &= axp20x_ea->mask;
-+ val >>= ffs(axp20x_ea->mask) - 1;
-+
-+ for (i = 0; i < 4; i++)
-+ if (val == axp20x_ea->p_time[i].idx)
-+ val = axp20x_ea->p_time[i].time;
-+
-+ return sprintf(buf, "%u\n", val);
-+}
-+
-+static ssize_t axp20x_store_ext_attr(struct device *dev, struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev);
-+ struct axp20x_pek_ext_attr *axp20x_ea = get_axp_ext_attr(attr);
-+ char val_str[20];
-+ size_t len;
-+ int ret, i;
-+ unsigned int val, idx = 0;
-+ unsigned int best_err = UINT_MAX;
-+
-+ val_str[sizeof(val_str) - 1] = '\0';
-+ strncpy(val_str, buf, sizeof(val_str) - 1);
-+ len = strlen(val_str);
-+
-+ if (len && val_str[len - 1] == '\n')
-+ val_str[len - 1] = '\0';
-+
-+ ret = kstrtouint(val_str, 10, &val);
-+ if (ret)
-+ return ret;
-+
-+ for (i = 3; i >= 0; i--) {
-+ unsigned int err;
-+
-+ err = abs(axp20x_ea->p_time[i].time - val);
-+ if (err < best_err) {
-+ best_err = err;
-+ idx = axp20x_ea->p_time[i].idx;
-+ }
-+
-+ if (!err)
-+ break;
-+ }
-+
-+ idx <<= ffs(axp20x_ea->mask) - 1;
-+ ret = regmap_update_bits(axp20x_pek->axp20x->regmap,
-+ AXP20X_PEK_KEY,
-+ axp20x_ea->mask, idx);
-+ if (ret != 0)
-+ return -EINVAL;
-+ return count;
-+}
-+
-+static struct dev_ext_attribute axp20x_dev_attr_startup = {
-+ .attr = __ATTR(startup, 0644, axp20x_show_ext_attr, axp20x_store_ext_attr),
-+ .var = &axp20x_pek_startup_ext_attr
-+};
-+
-+static struct dev_ext_attribute axp20x_dev_attr_shutdown = {
-+ .attr = __ATTR(shutdown, 0644, axp20x_show_ext_attr, axp20x_store_ext_attr),
-+ .var = &axp20x_pek_shutdown_ext_attr
-+};
-+
-+static irqreturn_t axp20x_pek_irq(int irq, void *pwr)
-+{
-+ struct input_dev *idev = pwr;
-+ struct axp20x_pek *axp20x_pek = input_get_drvdata(idev);
-+
-+ if (irq == axp20x_pek->irq_dbr)
-+ input_report_key(idev, KEY_POWER, true);
-+ else if (irq == axp20x_pek->irq_dbf)
-+ input_report_key(idev, KEY_POWER, false);
-+
-+ input_sync(idev);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static int axp20x_pek_probe(struct platform_device *pdev)
-+{
-+ struct axp20x_pek *axp20x_pek;
-+ struct axp20x_dev *axp20x;
-+ struct input_dev *idev;
-+ int error;
-+
-+ axp20x_pek = devm_kzalloc(&pdev->dev, sizeof(struct axp20x_pek),
-+ GFP_KERNEL);
-+ if (!axp20x_pek)
-+ return -ENOMEM;
-+
-+ axp20x_pek->axp20x = dev_get_drvdata(pdev->dev.parent);
-+ axp20x = axp20x_pek->axp20x;
-+
-+ axp20x_pek->irq_dbr = platform_get_irq_byname(pdev, "PEK_DBR");
-+ if (axp20x_pek->irq_dbr < 0) {
-+ dev_err(&pdev->dev, "No IRQ for PEK_DBR, error=%d\n",
-+ axp20x_pek->irq_dbr);
-+ return axp20x_pek->irq_dbr;
-+ }
-+ axp20x_pek->irq_dbr = regmap_irq_get_virq(axp20x->regmap_irqc,
-+ axp20x_pek->irq_dbr);
-+
-+ axp20x_pek->irq_dbf = platform_get_irq_byname(pdev, "PEK_DBF");
-+ if (axp20x_pek->irq_dbf < 0) {
-+ dev_err(&pdev->dev, "No IRQ for PEK_DBF, error=%d\n",
-+ axp20x_pek->irq_dbf);
-+ return axp20x_pek->irq_dbf;
-+ }
-+ axp20x_pek->irq_dbf = regmap_irq_get_virq(axp20x->regmap_irqc,
-+ axp20x_pek->irq_dbf);
-+
-+ axp20x_pek->input = devm_input_allocate_device(&pdev->dev);
-+ if (!axp20x_pek->input)
-+ return -ENOMEM;
-+
-+ idev = axp20x_pek->input;
-+
-+ idev->name = "axp20x-pek";
-+ idev->phys = "m1kbd/input2";
-+ idev->dev.parent = &pdev->dev;
-+
-+ input_set_capability(idev, EV_KEY, KEY_POWER);
-+
-+ input_set_drvdata(idev, axp20x_pek);
-+
-+ error = devm_request_any_context_irq(&pdev->dev, axp20x_pek->irq_dbr,
-+ axp20x_pek_irq, 0,
-+ "axp20x-pek-dbr", idev);
-+ if (error < 0) {
-+ dev_err(axp20x->dev, "Failed to request dbr IRQ#%d: %d\n",
-+ axp20x_pek->irq_dbr, error);
-+
-+ return error;
-+ }
-+
-+ error = devm_request_any_context_irq(&pdev->dev, axp20x_pek->irq_dbf,
-+ axp20x_pek_irq, 0,
-+ "axp20x-pek-dbf", idev);
-+ if (error < 0) {
-+ dev_err(axp20x->dev, "Failed to request dbf IRQ#%d: %d\n",
-+ axp20x_pek->irq_dbf, error);
-+ return error;
-+ }
-+
-+ error = device_create_file(&pdev->dev, &axp20x_dev_attr_startup.attr);
-+ if (error)
-+ return error;
-+
-+ error = device_create_file(&pdev->dev, &axp20x_dev_attr_shutdown.attr);
-+ if (error)
-+ goto clear_startup_attr;
-+
-+ error = input_register_device(idev);
-+ if (error) {
-+ dev_err(axp20x->dev, "Can't register input device: %d\n", error);
-+ goto clear_attr;
-+ }
-+
-+ platform_set_drvdata(pdev, axp20x_pek);
-+
-+ return 0;
-+
-+clear_attr:
-+ device_remove_file(&pdev->dev, &axp20x_dev_attr_shutdown.attr);
-+
-+clear_startup_attr:
-+ device_remove_file(&pdev->dev, &axp20x_dev_attr_startup.attr);
-+
-+ return error;
-+}
-+
-+int axp20x_pek_remove(struct platform_device *pdev)
-+{
-+ device_remove_file(&pdev->dev, &axp20x_dev_attr_shutdown.attr);
-+ device_remove_file(&pdev->dev, &axp20x_dev_attr_startup.attr);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver axp20x_pek_driver = {
-+ .probe = axp20x_pek_probe,
-+ .remove = axp20x_pek_remove,
-+ .driver = {
-+ .name = "axp20x-pek",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+module_platform_driver(axp20x_pek_driver);
-+
-+MODULE_DESCRIPTION("axp20x Power Button");
-+MODULE_AUTHOR("Carlo Caione <carlo@caione.org>");
-+MODULE_LICENSE("GPL");
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