/* Copyright (c) 2012, 2015, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only version 2 as published by the Free Software Foundation. * * 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. */ /* Mode select */ #define QPNP_PIN_MODE_DIG_IN 0 #define QPNP_PIN_MODE_DIG_OUT 1 #define QPNP_PIN_MODE_DIG_IN_OUT 2 #define QPNP_PIN_MODE_ANA_PASS_THRU 3 #define QPNP_PIN_MODE_BIDIR 3 #define QPNP_PIN_MODE_AIN 4 #define QPNP_PIN_MODE_AOUT 5 #define QPNP_PIN_MODE_SINK 6 /* Invert source select (GPIO, MPP) */ #define QPNP_PIN_INVERT_DISABLE 0 #define QPNP_PIN_INVERT_ENABLE 1 /* Output type (GPIO) */ #define QPNP_PIN_OUT_BUF_CMOS 0 #define QPNP_PIN_OUT_BUF_OPEN_DRAIN_NMOS 1 #define QPNP_PIN_OUT_BUF_OPEN_DRAIN_PMOS 2 #define QPNP_PIN_OUT_BUF_NO_DRIVE 3 /* Voltage select (GPIO, MPP) */ #define QPNP_PIN_VIN0 0 #define QPNP_PIN_VIN1 1 #define QPNP_PIN_VIN2 2 #define QPNP_PIN_VIN3 3 #define QPNP_PIN_VIN4 4 #define QPNP_PIN_VIN5 5 #define QPNP_PIN_VIN6 6 #define QPNP_PIN_VIN7 7 /* Pull Up Values (GPIO) */ #define QPNP_PIN_GPIO_PULL_UP_30 0 #define QPNP_PIN_GPIO_PULL_UP_1P5 1 #define QPNP_PIN_GPIO_PULL_UP_31P5 2 #define QPNP_PIN_GPIO_PULL_UP_1P5_30 3 #define QPNP_PIN_GPIO_PULL_DN 4 #define QPNP_PIN_GPIO_PULL_NO 5 /* Pull Up Values (MPP) */ #define QPNP_PIN_MPP_PULL_UP_0P6KOHM 0 #define QPNP_PIN_MPP_PULL_UP_OPEN 1 #define QPNP_PIN_MPP_PULL_UP_10KOHM 2 #define QPNP_PIN_MPP_PULL_UP_30KOHM 3 /* Out Strength (GPIO) */ #define QPNP_PIN_OUT_STRENGTH_LOW 1 #define QPNP_PIN_OUT_STRENGTH_MED 2 #define QPNP_PIN_OUT_STRENGTH_HIGH 3 /* Digital-in CTL (GPIO/MPP) */ #define QPNP_PIN_DIG_IN_CTL_DTEST1 1 #define QPNP_PIN_DIG_IN_CTL_DTEST2 2 #define QPNP_PIN_DIG_IN_CTL_DTEST3 3 #define QPNP_PIN_DIG_IN_CTL_DTEST4 4 /* Source Select (GPIO) / Enable Select (MPP) */ #define QPNP_PIN_SEL_FUNC_CONSTANT 0 #define QPNP_PIN_SEL_FUNC_PAIRED 1 #define QPNP_PIN_SEL_FUNC_1 2 #define QPNP_PIN_SEL_FUNC_2 3 #define QPNP_PIN_SEL_DTEST1 4 #define QPNP_PIN_SEL_DTEST2 5 #define QPNP_PIN_SEL_DTEST3 6 #define QPNP_PIN_SEL_DTEST4 7 /* Source Select for GPIO_LV/GPIO_MV only */ #define QPNP_PIN_LV_MV_SEL_FUNC_CONSTANT 0 #define QPNP_PIN_LV_MV_SEL_FUNC_PAIRED 1 #define QPNP_PIN_LV_MV_SEL_FUNC_1 2 #define QPNP_PIN_LV_MV_SEL_FUNC_2 3 #define QPNP_PIN_LV_MV_SEL_FUNC_3 4 #define QPNP_PIN_LV_MV_SEL_FUNC_4 5 #define QPNP_PIN_LV_MV_SEL_DTEST1 6 #define QPNP_PIN_LV_MV_SEL_DTEST2 7 #define QPNP_PIN_LV_MV_SEL_DTEST3 8 #define QPNP_PIN_LV_MV_SEL_DTEST4 9 /* Master enable (GPIO, MPP) */ #define QPNP_PIN_MASTER_DISABLE 0 #define QPNP_PIN_MASTER_ENABLE 1 /* Analog Output (MPP) */ #define QPNP_PIN_AOUT_1V25 0 #define QPNP_PIN_AOUT_0V625 1 #define QPNP_PIN_AOUT_0V3125 2 #define QPNP_PIN_AOUT_MPP 3 #define QPNP_PIN_AOUT_ABUS1 4 #define QPNP_PIN_AOUT_ABUS2 5 #define QPNP_PIN_AOUT_ABUS3 6 #define QPNP_PIN_AOUT_ABUS4 7 /* Analog Input (MPP) */ #define QPNP_PIN_AIN_AMUX_CH5 0 #define QPNP_PIN_AIN_AMUX_CH6 1 #define QPNP_PIN_AIN_AMUX_CH7 2 #define QPNP_PIN_AIN_AMUX_CH8 3 #define QPNP_PIN_AIN_AMUX_ABUS1 4 #define QPNP_PIN_AIN_AMUX_ABUS2 5 #define QPNP_PIN_AIN_AMUX_ABUS3 6 #define QPNP_PIN_AIN_AMUX_ABUS4 7 /* Current Sink (MPP) */ #define QPNP_PIN_CS_OUT_5MA 0 #define QPNP_PIN_CS_OUT_10MA 1 #define QPNP_PIN_CS_OUT_15MA 2 #define QPNP_PIN_CS_OUT_20MA 3 #define QPNP_PIN_CS_OUT_25MA 4 #define QPNP_PIN_CS_OUT_30MA 5 #define QPNP_PIN_CS_OUT_35MA 6 #define QPNP_PIN_CS_OUT_40MA 7 /* ANALOG PASS SEL (GPIO LV/MV) */ #define QPNP_PIN_APASS_SEL_ATEST1 0 #define QPNP_PIN_APASS_SEL_ATEST2 1 #define QPNP_PIN_APASS_SEL_ATEST3 2 #define QPNP_PIN_APASS_SEL_ATEST4 3 /** * struct qpnp_pin_cfg - structure to specify pin configurtion values * @mode: indicates whether the pin should be input, output, or * both for gpios. mpp pins also support bidirectional, * analog in, analog out and current sink. This value * should be of type QPNP_PIN_MODE_*. * @output_type: indicates pin should be configured as CMOS or open * drain. Should be of the type QPNP_PIN_OUT_BUF_*. This * setting applies for gpios only. * @invert: Invert the signal of the line - * QPNP_PIN_INVERT_DISABLE or QPNP_PIN_INVERT_ENABLE. * @pull: This parameter should be programmed to different values * depending on whether it's GPIO or MPP. * For GPIO, it indicates whether a pull up or pull down * should be applied. If a pullup is required the * current strength needs to be specified. * Current values of 30uA, 1.5uA, 31.5uA, 1.5uA with 30uA * boost are supported. This value should be one of * the QPNP_PIN_GPIO_PULL_*. Note that the hardware ignores * this configuration if the GPIO is not set to input or * output open-drain mode. * For MPP, it indicates whether a pullup should be * applied for bidirectitional mode only. The hardware * ignores the configuration when operating in other modes. * This value should be one of the QPNP_PIN_MPP_PULL_*. * @vin_sel: specifies the voltage level when the output is set to 1. * For an input gpio specifies the voltage level at which * the input is interpreted as a logical 1. * @out_strength: the amount of current supplied for an output gpio, * should be of the type QPNP_PIN_STRENGTH_*. * @src_sel: select alternate function for the pin. Certain pins * can be paired (shorted) with each other. Some pins * can act as alternate functions. In the context of * gpio, this acts as a source select. For mpps, * this is an enable select. * This parameter should be of type QPNP_PIN_SEL_*. * @master_en: QPNP_PIN_MASTER_ENABLE = Enable features within the * pin block based on configurations. * QPNP_PIN_MASTER_DISABLE = Completely disable the pin * block and let the pin float with high impedance * regardless of other settings. * @aout_ref: Set the analog output reference. This parameter should * be of type QPNP_PIN_AOUT_*. This parameter only applies * to mpp pins. * @ain_route: Set the source for analog input. This parameter * should be of type QPNP_PIN_AIN_*. This parameter only * applies to mpp pins. * @cs_out: Set the the amount of current to sync in mA. This * parameter should be of type QPNP_PIN_CS_OUT_*. This * parameter only applies to mpp pins. * @apass_sel: Set the ATEST line to which the signal is to be * routed to. The parameter should be of type * QPNP_PIN_APASS_SEL_*. This * parameter only applies to GPIO LV/MV pins. * @dtest_sel: Select the DTEST line to which the signal needs * is routed to. The parameter should be of type * QPNP_PIN_DIG_IN_CTL_*. The parameter applies * to both gpio and mpp pins. */ struct qpnp_pin_cfg { int mode; int output_type; int invert; int pull; int vin_sel; int out_strength; int src_sel; int master_en; int aout_ref; int ain_route; int cs_out; int apass_sel; int dtest_sel; }; /** * qpnp_pin_config - Apply pin configuration for Linux gpio * @gpio: Linux gpio number to configure. * @param: parameters to configure. * * This routine takes a Linux gpio number that corresponds with a * PMIC pin and applies the configuration specified in 'param'. * This gpio number can be ascertained by of_get_gpio_flags() or * the qpnp_pin_map_gpio() API. */ int qpnp_pin_config(int gpio, struct qpnp_pin_cfg *param); /** * qpnp_pin_map - Obtain Linux GPIO number from device spec * @name: Name assigned by the 'label' binding for the primary node. * @pmic_pin: PMIC pin number to lookup. * * This routine is used in legacy configurations that do not support * Device Tree. If you are using Device Tree, you should not use this. * For such cases, use of_get_gpio() or friends instead. */ int qpnp_pin_map(const char *name, uint32_t pmic_pin);