Add support for the i.MX53 QSB2.6.35.3-mx53-early-201103141049

This patch seems to have originated from the 11.01.00 release
from Freescale, which is no longer available except through the
gitweb interface from Freescale.

http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=commit;h=27fdf7bae11978d21e8aba09bb635f49b07edd4a

1 files changed, 131 insertions, 0 deletions

diff --git a/drivers/mxc/mcu_pmic/mcu_pmic_gpio.c b/drivers/mxc/mcu_pmic/mcu_pmic_gpio.c
new file mode 100644
index 000000000000..417dabe35386
--- /dev/null
+++ b/drivers/mxc/mcu_pmic/mcu_pmic_gpio.c
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * 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
+ */
+
+/*!
+ * @file mc9s08dz60/mcu_pmic_gpio.c
+ * @brief This is the main file of mc9s08dz60 Power Control driver.
+ *
+ * @ingroup PMIC_POWER
+ */
+
+/*
+ * Includes
+ */
+#include <linux/platform_device.h>
+#include <linux/mfd/mc9s08dz60/pmic.h>
+#include <linux/pmic_status.h>
+#include <linux/ioctl.h>
+
+#define SET_BIT_IN_BYTE(byte, pos) (byte |= (0x01 << pos))
+#define CLEAR_BIT_IN_BYTE(byte, pos) (byte &= ~(0x01 << pos))
+
+int pmic_gpio_set_bit_val(int reg, unsigned int bit,
+				  unsigned int val)
+{
+	int reg_name;
+	u8 reg_mask = 0;
+
+	if (bit > 7)
+		return -1;
+
+	switch (reg) {
+	case MCU_GPIO_REG_RESET_1:
+		reg_name = REG_MCU_RESET_1;
+		break;
+	case MCU_GPIO_REG_RESET_2:
+		reg_name = REG_MCU_RESET_2;
+		break;
+	case MCU_GPIO_REG_POWER_CONTROL:
+		reg_name = REG_MCU_POWER_CTL;
+		break;
+	case MCU_GPIO_REG_GPIO_CONTROL_1:
+		reg_name = REG_MCU_GPIO_1;
+		break;
+	case MCU_GPIO_REG_GPIO_CONTROL_2:
+		reg_name = REG_MCU_GPIO_2;
+		break;
+	default:
+		return -1;
+	}
+
+	SET_BIT_IN_BYTE(reg_mask, bit);
+	if (0 == val)
+		CHECK_ERROR(mcu_pmic_write_reg(reg_name, 0, reg_mask));
+	else
+		CHECK_ERROR(mcu_pmic_write_reg(reg_name, reg_mask, reg_mask));
+
+	return 0;
+}
+EXPORT_SYMBOL(pmic_gpio_set_bit_val);
+
+int pmic_gpio_get_bit_val(int reg, unsigned int bit,
+				  unsigned int *val)
+{
+	int reg_name;
+	unsigned int reg_read_val;
+	u8 reg_mask = 0;
+
+	if (bit > 7)
+		return -1;
+
+	switch (reg) {
+	case MCU_GPIO_REG_RESET_1:
+		reg_name = REG_MCU_RESET_1;
+		break;
+	case MCU_GPIO_REG_RESET_2:
+		reg_name = REG_MCU_RESET_2;
+		break;
+	case MCU_GPIO_REG_POWER_CONTROL:
+		reg_name = REG_MCU_POWER_CTL;
+		break;
+	case MCU_GPIO_REG_GPIO_CONTROL_1:
+		reg_name = REG_MCU_GPIO_1;
+		break;
+	case MCU_GPIO_REG_GPIO_CONTROL_2:
+		reg_name = REG_MCU_GPIO_2;
+		break;
+	default:
+		return -1;
+	}
+
+	SET_BIT_IN_BYTE(reg_mask, bit);
+	CHECK_ERROR(mcu_pmic_read_reg(reg_name, &reg_read_val, reg_mask));
+	if (0 == reg_read_val)
+		*val = 0;
+	else
+		*val = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL(pmic_gpio_get_bit_val);
+
+int pmic_gpio_get_designation_bit_val(unsigned int bit,
+					unsigned int *val)
+{
+	unsigned int reg_read_val;
+	u8 reg_mask = 0;
+
+	if (bit > 7)
+		return -1;
+
+	SET_BIT_IN_BYTE(reg_mask, bit);
+	CHECK_ERROR(
+		mcu_pmic_read_reg(REG_MCU_DES_FLAG, &reg_read_val, reg_mask));
+	if (0 == reg_read_val)
+		*val = 0;
+	else
+		*val = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL(pmic_gpio_get_designation_bit_val);