diff options
Diffstat (limited to 'recipes/linux/linux-davinci/0003-tps6507x_mfd_driver.patch')
| -rw-r--r-- | recipes/linux/linux-davinci/0003-tps6507x_mfd_driver.patch | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/recipes/linux/linux-davinci/0003-tps6507x_mfd_driver.patch b/recipes/linux/linux-davinci/0003-tps6507x_mfd_driver.patch deleted file mode 100644 index 418d867c63..0000000000 --- a/recipes/linux/linux-davinci/0003-tps6507x_mfd_driver.patch +++ /dev/null @@ -1,260 +0,0 @@ -Index: kernel/drivers/mfd/Kconfig -=================================================================== ---- kernel.orig/drivers/mfd/Kconfig 2010-01-26 14:28:36.000000000 -0700 -+++ kernel/drivers/mfd/Kconfig 2010-01-26 14:33:54.000000000 -0700 -@@ -92,6 +92,17 @@ - This driver can also be built as a module. If so, the module - will be called tps65010. - -+config TPS6507x -+ tristate "TPS6507x Power Management / Touch Screen chips" -+ depends on I2C -+ help -+ If you say yes here you get support for the TPS6507x series of -+ Power Management / Touch Screen chips. These include voltage -+ regulators, lithium ion/polymer battery charging, touch screen -+ and other features that are often used in portable devices. -+ This driver can also be built as a module. If so, the module -+ will be called tps6507x. -+ - config MENELAUS - bool "Texas Instruments TWL92330/Menelaus PM chip" - depends on I2C=y && ARCH_OMAP24XX -Index: kernel/drivers/mfd/Makefile -=================================================================== ---- kernel.orig/drivers/mfd/Makefile 2010-01-26 14:28:36.000000000 -0700 -+++ kernel/drivers/mfd/Makefile 2010-01-26 14:33:54.000000000 -0700 -@@ -24,6 +24,7 @@ - obj-$(CONFIG_MFD_WM8350_I2C) += wm8350-i2c.o - - obj-$(CONFIG_TPS65010) += tps65010.o -+obj-$(CONFIG_TPS6507x) += tps6507x.o - obj-$(CONFIG_MENELAUS) += menelaus.o - - obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o -Index: kernel/drivers/mfd/tps6507x.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ kernel/drivers/mfd/tps6507x.c 2010-01-26 14:33:54.000000000 -0700 -@@ -0,0 +1,185 @@ -+/* -+ * tps6507x.c -- TPS6507x chip family multi-function driver -+ * -+ * Copyright (c) 2010 RidgeRun (todd.fischer@ridgerun.com) -+ * -+ * Author: Todd Fischer -+ * todd.fischer@ridgerun.com -+ * -+ * Credits: -+ * -+ * Using code from wm8350-i2c.c, Wolfson Microelectronics PLC. -+ * -+ * For licencing details see kernel-base/COPYING -+ * -+ */ -+ -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/init.h> -+#include <linux/i2c.h> -+#include <linux/platform_device.h> -+#include <linux/mfd/tps6507x.h> -+ -+struct tps_sub_devices { -+ const char *name; -+ struct platform_device *pdev; -+}; -+ -+static struct tps_sub_devices tps6507x_sub_devices[] = { -+ { NULL, NULL } -+}; -+ -+static int tps6507x_i2c_read_device(struct tps6507x_dev *tps6507x, char reg, -+ int bytes, void *dest) -+{ -+ int ret; -+ -+ ret = i2c_master_send(tps6507x->i2c_client, ®, 1); -+ if (ret < 0) -+ return ret; -+ ret = i2c_master_recv(tps6507x->i2c_client, dest, bytes); -+ if (ret < 0) -+ return ret; -+ if (ret != bytes) -+ return -EIO; -+ return 0; -+} -+ -+static int tps6507x_i2c_write_device(struct tps6507x_dev *tps6507x, char reg, -+ int bytes, void *src) -+{ -+ /* we add 1 byte for device register */ -+ u8 msg[(TPS6507X_MAX_REGISTER << 1) + 1]; -+ int ret; -+ -+ if (bytes > ((TPS6507X_MAX_REGISTER << 1) + 1)) -+ return -EINVAL; -+ -+ msg[0] = reg; -+ memcpy(&msg[1], src, bytes); -+ ret = i2c_master_send(tps6507x->i2c_client, msg, bytes + 1); -+ if (ret < 0) -+ return ret; -+ if (ret != bytes + 1) -+ return -EIO; -+ return 0; -+} -+ -+/* -+ * Register a client device. This is non-fatal since there is no need to -+ * fail the entire device init due to a single platform device failing. -+ */ -+static void tps6507x_client_dev_register(struct tps6507x_dev *tps6507x, -+ const char *name, -+ struct platform_device **pdev) -+{ -+ int ret; -+ -+ *pdev = platform_device_alloc(name, -1); -+ if (*pdev == NULL) { -+ dev_err(tps6507x->dev, "Failed to allocate %s\n", name); -+ return; -+ } -+ -+ (*pdev)->dev.parent = tps6507x->dev; -+ platform_set_drvdata(*pdev, tps6507x); -+ ret = platform_device_add(*pdev); -+ if (ret != 0) { -+ dev_err(tps6507x->dev, "Failed to register %s: %d\n", name, ret); -+ platform_device_put(*pdev); -+ *pdev = NULL; -+ } -+} -+ -+int tps6507x_device_init(struct tps6507x_dev *tps6507x, int irq, -+ struct tps6507x_board *pdata) -+{ -+ int ret = 0; -+ struct tps_sub_devices *d = &tps6507x_sub_devices[0]; -+ -+ while (d->name) { -+ tps6507x_client_dev_register(tps6507x, d->name, &(d->pdev)); -+ d++; -+ } -+ -+ return ret; -+} -+ -+static int tps6507x_i2c_probe(struct i2c_client *i2c, -+ const struct i2c_device_id *id) -+{ -+ struct tps6507x_dev *tps6507x; -+ int ret = 0; -+ -+ tps6507x = kzalloc(sizeof(struct tps6507x_dev), GFP_KERNEL); -+ if (tps6507x == NULL) { -+ kfree(i2c); -+ return -ENOMEM; -+ } -+ -+ i2c_set_clientdata(i2c, tps6507x); -+ tps6507x->dev = &i2c->dev; -+ tps6507x->i2c_client = i2c; -+ tps6507x->read_dev = tps6507x_i2c_read_device; -+ tps6507x->write_dev = tps6507x_i2c_write_device; -+ mutex_init(&tps6507x->adc_mutex); -+ -+ ret = tps6507x_device_init(tps6507x, i2c->irq, i2c->dev.platform_data); -+ if (ret < 0) -+ goto err; -+ -+ return ret; -+ -+err: -+ kfree(tps6507x); -+ return ret; -+} -+ -+static int tps6507x_i2c_remove(struct i2c_client *i2c) -+{ -+ struct tps6507x_dev *tps6507x = i2c_get_clientdata(i2c); -+ struct tps_sub_devices *d = &tps6507x_sub_devices[0]; -+ -+ while (d->name) { -+ platform_device_unregister(d->pdev); -+ d++; -+ } -+ -+ kfree(tps6507x); -+ -+ return 0; -+} -+ -+static const struct i2c_device_id tps6507x_i2c_id[] = { -+ { "tps6507x", 0 }, -+ { } -+}; -+MODULE_DEVICE_TABLE(i2c, tps6507x_i2c_id); -+ -+ -+static struct i2c_driver tps6507x_i2c_driver = { -+ .driver = { -+ .name = "tps6507x", -+ .owner = THIS_MODULE, -+ }, -+ .probe = tps6507x_i2c_probe, -+ .remove = tps6507x_i2c_remove, -+ .id_table = tps6507x_i2c_id, -+}; -+ -+static int __init tps6507x_i2c_init(void) -+{ -+ return i2c_add_driver(&tps6507x_i2c_driver); -+} -+/* init early so consumer devices can complete system boot */ -+subsys_initcall(tps6507x_i2c_init); -+ -+static void __exit tps6507x_i2c_exit(void) -+{ -+ i2c_del_driver(&tps6507x_i2c_driver); -+} -+module_exit(tps6507x_i2c_exit); -+ -+MODULE_DESCRIPTION("TPS6507x chip family multi-function driver") -+MODULE_LICENSE("GPL"); -Index: kernel/include/linux/mfd/tps6507x.h -=================================================================== ---- kernel.orig/include/linux/mfd/tps6507x.h 2010-01-26 14:33:36.000000000 -0700 -+++ kernel/include/linux/mfd/tps6507x.h 2010-01-26 14:33:54.000000000 -0700 -@@ -131,6 +131,8 @@ - /* VDCDC MASK */ - #define TPS6507X_DEFDCDCX_DCDC_MASK 0X3F - -+#define TPS6507X_MAX_REGISTER 0X19 -+ - /** - * struct tps6507x_board - packages regulator and touchscreen init data - * @tps6507x_regulator_data: regulator initialization values -@@ -142,4 +144,22 @@ - struct regulator_init_data *tps6507x_pmic_init_data; - }; - -+/** -+ * struct tps6507x_dev - tps6507x sub-driver chip access routines -+ * @read_dev() - I2C register read function -+ * @write_dev() - I2C register write function -+ * -+ * Device data may be used to access the TPS6507x chip -+ */ -+ -+struct tps6507x_dev { -+ struct device *dev; -+ struct i2c_client *i2c_client; -+ int (*read_dev)(struct tps6507x_dev *tps6507x, char reg, int size, -+ void *dest); -+ int (*write_dev)(struct tps6507x_dev *tps6507x, char reg, int size, -+ void *src); -+ struct mutex adc_mutex; -+}; -+ - #endif /* __LINUX_MFD_TPS6507X_H */ |