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kernel/drivers/pinctrl/cirrus/pinctrl-lochnagar.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Lochnagar pin and GPIO control
*
* Copyright (c) 2017-2018 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*
* Author: Charles Keepax <ckeepax@opensource.cirrus.com>
*/
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/gpio/driver.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/mfd/lochnagar.h>
#include <linux/mfd/lochnagar1_regs.h>
#include <linux/mfd/lochnagar2_regs.h>
#include <dt-bindings/pinctrl/lochnagar.h>
#include "../pinctrl-utils.h"
#define LN2_NUM_GPIO_CHANNELS 16
#define LN_CDC_AIF1_STR "codec-aif1"
#define LN_CDC_AIF2_STR "codec-aif2"
#define LN_CDC_AIF3_STR "codec-aif3"
#define LN_DSP_AIF1_STR "dsp-aif1"
#define LN_DSP_AIF2_STR "dsp-aif2"
#define LN_PSIA1_STR "psia1"
#define LN_PSIA2_STR "psia2"
#define LN_GF_AIF1_STR "gf-aif1"
#define LN_GF_AIF2_STR "gf-aif2"
#define LN_GF_AIF3_STR "gf-aif3"
#define LN_GF_AIF4_STR "gf-aif4"
#define LN_SPDIF_AIF_STR "spdif-aif"
#define LN_USB_AIF1_STR "usb-aif1"
#define LN_USB_AIF2_STR "usb-aif2"
#define LN_ADAT_AIF_STR "adat-aif"
#define LN_SOUNDCARD_AIF_STR "soundcard-aif"
#define LN_PIN_GPIO(REV, ID, NAME, REG, SHIFT, INVERT) \
static const struct lochnagar_pin lochnagar##REV##_##ID##_pin = { \
.name = NAME, .type = LN_PTYPE_GPIO, .reg = LOCHNAGAR##REV##_##REG, \
.shift = LOCHNAGAR##REV##_##SHIFT##_SHIFT, .invert = INVERT, \
}
#define LN_PIN_SAIF(REV, ID, NAME) \
static const struct lochnagar_pin lochnagar##REV##_##ID##_pin = \
{ .name = NAME, .type = LN_PTYPE_AIF, }
#define LN_PIN_AIF(REV, ID) \
LN_PIN_SAIF(REV, ID##_BCLK, LN_##ID##_STR"-bclk"); \
LN_PIN_SAIF(REV, ID##_LRCLK, LN_##ID##_STR"-lrclk"); \
LN_PIN_SAIF(REV, ID##_RXDAT, LN_##ID##_STR"-rxdat"); \
LN_PIN_SAIF(REV, ID##_TXDAT, LN_##ID##_STR"-txdat")
#define LN1_PIN_GPIO(ID, NAME, REG, SHIFT, INVERT) \
LN_PIN_GPIO(1, ID, NAME, REG, SHIFT, INVERT)
#define LN1_PIN_MUX(ID, NAME) \
static const struct lochnagar_pin lochnagar1_##ID##_pin = \
{ .name = NAME, .type = LN_PTYPE_MUX, .reg = LOCHNAGAR1_##ID, }
#define LN1_PIN_AIF(ID) LN_PIN_AIF(1, ID)
#define LN2_PIN_GPIO(ID, NAME, REG, SHIFT, INVERT) \
LN_PIN_GPIO(2, ID, NAME, REG, SHIFT, INVERT)
#define LN2_PIN_MUX(ID, NAME) \
static const struct lochnagar_pin lochnagar2_##ID##_pin = \
{ .name = NAME, .type = LN_PTYPE_MUX, .reg = LOCHNAGAR2_GPIO_##ID, }
#define LN2_PIN_AIF(ID) LN_PIN_AIF(2, ID)
#define LN2_PIN_GAI(ID) \
LN2_PIN_MUX(ID##_BCLK, LN_##ID##_STR"-bclk"); \
LN2_PIN_MUX(ID##_LRCLK, LN_##ID##_STR"-lrclk"); \
LN2_PIN_MUX(ID##_RXDAT, LN_##ID##_STR"-rxdat"); \
LN2_PIN_MUX(ID##_TXDAT, LN_##ID##_STR"-txdat")
#define LN_PIN(REV, ID) [LOCHNAGAR##REV##_PIN_##ID] = { \
.number = LOCHNAGAR##REV##_PIN_##ID, \
.name = lochnagar##REV##_##ID##_pin.name, \
.drv_data = (void *)&lochnagar##REV##_##ID##_pin, \
}
#define LN1_PIN(ID) LN_PIN(1, ID)
#define LN2_PIN(ID) LN_PIN(2, ID)
#define LN_PINS(REV, ID) \
LN_PIN(REV, ID##_BCLK), LN_PIN(REV, ID##_LRCLK), \
LN_PIN(REV, ID##_RXDAT), LN_PIN(REV, ID##_TXDAT)
#define LN1_PINS(ID) LN_PINS(1, ID)
#define LN2_PINS(ID) LN_PINS(2, ID)
enum {
LOCHNAGAR1_PIN_GF_GPIO2 = LOCHNAGAR1_PIN_NUM_GPIOS,
LOCHNAGAR1_PIN_GF_GPIO3,
LOCHNAGAR1_PIN_GF_GPIO7,
LOCHNAGAR1_PIN_LED1,
LOCHNAGAR1_PIN_LED2,
LOCHNAGAR1_PIN_CDC_AIF1_BCLK,
LOCHNAGAR1_PIN_CDC_AIF1_LRCLK,
LOCHNAGAR1_PIN_CDC_AIF1_RXDAT,
LOCHNAGAR1_PIN_CDC_AIF1_TXDAT,
LOCHNAGAR1_PIN_CDC_AIF2_BCLK,
LOCHNAGAR1_PIN_CDC_AIF2_LRCLK,
LOCHNAGAR1_PIN_CDC_AIF2_RXDAT,
LOCHNAGAR1_PIN_CDC_AIF2_TXDAT,
LOCHNAGAR1_PIN_CDC_AIF3_BCLK,
LOCHNAGAR1_PIN_CDC_AIF3_LRCLK,
LOCHNAGAR1_PIN_CDC_AIF3_RXDAT,
LOCHNAGAR1_PIN_CDC_AIF3_TXDAT,
LOCHNAGAR1_PIN_DSP_AIF1_BCLK,
LOCHNAGAR1_PIN_DSP_AIF1_LRCLK,
LOCHNAGAR1_PIN_DSP_AIF1_RXDAT,
LOCHNAGAR1_PIN_DSP_AIF1_TXDAT,
LOCHNAGAR1_PIN_DSP_AIF2_BCLK,
LOCHNAGAR1_PIN_DSP_AIF2_LRCLK,
LOCHNAGAR1_PIN_DSP_AIF2_RXDAT,
LOCHNAGAR1_PIN_DSP_AIF2_TXDAT,
LOCHNAGAR1_PIN_PSIA1_BCLK,
LOCHNAGAR1_PIN_PSIA1_LRCLK,
LOCHNAGAR1_PIN_PSIA1_RXDAT,
LOCHNAGAR1_PIN_PSIA1_TXDAT,
LOCHNAGAR1_PIN_PSIA2_BCLK,
LOCHNAGAR1_PIN_PSIA2_LRCLK,
LOCHNAGAR1_PIN_PSIA2_RXDAT,
LOCHNAGAR1_PIN_PSIA2_TXDAT,
LOCHNAGAR1_PIN_SPDIF_AIF_BCLK,
LOCHNAGAR1_PIN_SPDIF_AIF_LRCLK,
LOCHNAGAR1_PIN_SPDIF_AIF_RXDAT,
LOCHNAGAR1_PIN_SPDIF_AIF_TXDAT,
LOCHNAGAR1_PIN_GF_AIF3_BCLK,
LOCHNAGAR1_PIN_GF_AIF3_RXDAT,
LOCHNAGAR1_PIN_GF_AIF3_LRCLK,
LOCHNAGAR1_PIN_GF_AIF3_TXDAT,
LOCHNAGAR1_PIN_GF_AIF4_BCLK,
LOCHNAGAR1_PIN_GF_AIF4_RXDAT,
LOCHNAGAR1_PIN_GF_AIF4_LRCLK,
LOCHNAGAR1_PIN_GF_AIF4_TXDAT,
LOCHNAGAR1_PIN_GF_AIF1_BCLK,
LOCHNAGAR1_PIN_GF_AIF1_RXDAT,
LOCHNAGAR1_PIN_GF_AIF1_LRCLK,
LOCHNAGAR1_PIN_GF_AIF1_TXDAT,
LOCHNAGAR1_PIN_GF_AIF2_BCLK,
LOCHNAGAR1_PIN_GF_AIF2_RXDAT,
LOCHNAGAR1_PIN_GF_AIF2_LRCLK,
LOCHNAGAR1_PIN_GF_AIF2_TXDAT,
LOCHNAGAR2_PIN_SPDIF_AIF_BCLK = LOCHNAGAR2_PIN_NUM_GPIOS,
LOCHNAGAR2_PIN_SPDIF_AIF_LRCLK,
LOCHNAGAR2_PIN_SPDIF_AIF_RXDAT,
LOCHNAGAR2_PIN_SPDIF_AIF_TXDAT,
LOCHNAGAR2_PIN_USB_AIF1_BCLK,
LOCHNAGAR2_PIN_USB_AIF1_LRCLK,
LOCHNAGAR2_PIN_USB_AIF1_RXDAT,
LOCHNAGAR2_PIN_USB_AIF1_TXDAT,
LOCHNAGAR2_PIN_USB_AIF2_BCLK,
LOCHNAGAR2_PIN_USB_AIF2_LRCLK,
LOCHNAGAR2_PIN_USB_AIF2_RXDAT,
LOCHNAGAR2_PIN_USB_AIF2_TXDAT,
LOCHNAGAR2_PIN_ADAT_AIF_BCLK,
LOCHNAGAR2_PIN_ADAT_AIF_LRCLK,
LOCHNAGAR2_PIN_ADAT_AIF_RXDAT,
LOCHNAGAR2_PIN_ADAT_AIF_TXDAT,
LOCHNAGAR2_PIN_SOUNDCARD_AIF_BCLK,
LOCHNAGAR2_PIN_SOUNDCARD_AIF_LRCLK,
LOCHNAGAR2_PIN_SOUNDCARD_AIF_RXDAT,
LOCHNAGAR2_PIN_SOUNDCARD_AIF_TXDAT,
};
enum lochnagar_pin_type {
LN_PTYPE_GPIO,
LN_PTYPE_MUX,
LN_PTYPE_AIF,
LN_PTYPE_COUNT,
};
struct lochnagar_pin {
const char name[20];
enum lochnagar_pin_type type;
unsigned int reg;
int shift;
bool invert;
};
LN1_PIN_GPIO(CDC_RESET, "codec-reset", RST, CDC_RESET, 1);
LN1_PIN_GPIO(DSP_RESET, "dsp-reset", RST, DSP_RESET, 1);
LN1_PIN_GPIO(CDC_CIF1MODE, "codec-cif1mode", I2C_CTRL, CDC_CIF_MODE, 0);
LN1_PIN_MUX(GF_GPIO2, "gf-gpio2");
LN1_PIN_MUX(GF_GPIO3, "gf-gpio3");
LN1_PIN_MUX(GF_GPIO7, "gf-gpio7");
LN1_PIN_MUX(LED1, "led1");
LN1_PIN_MUX(LED2, "led2");
LN1_PIN_AIF(CDC_AIF1);
LN1_PIN_AIF(CDC_AIF2);
LN1_PIN_AIF(CDC_AIF3);
LN1_PIN_AIF(DSP_AIF1);
LN1_PIN_AIF(DSP_AIF2);
LN1_PIN_AIF(PSIA1);
LN1_PIN_AIF(PSIA2);
LN1_PIN_AIF(SPDIF_AIF);
LN1_PIN_AIF(GF_AIF1);
LN1_PIN_AIF(GF_AIF2);
LN1_PIN_AIF(GF_AIF3);
LN1_PIN_AIF(GF_AIF4);
LN2_PIN_GPIO(CDC_RESET, "codec-reset", MINICARD_RESETS, CDC_RESET, 1);
LN2_PIN_GPIO(DSP_RESET, "dsp-reset", MINICARD_RESETS, DSP_RESET, 1);
LN2_PIN_GPIO(CDC_CIF1MODE, "codec-cif1mode", COMMS_CTRL4, CDC_CIF1MODE, 0);
LN2_PIN_GPIO(CDC_LDOENA, "codec-ldoena", POWER_CTRL, PWR_ENA, 0);
LN2_PIN_GPIO(SPDIF_HWMODE, "spdif-hwmode", SPDIF_CTRL, SPDIF_HWMODE, 0);
LN2_PIN_GPIO(SPDIF_RESET, "spdif-reset", SPDIF_CTRL, SPDIF_RESET, 1);
LN2_PIN_MUX(FPGA_GPIO1, "fpga-gpio1");
LN2_PIN_MUX(FPGA_GPIO2, "fpga-gpio2");
LN2_PIN_MUX(FPGA_GPIO3, "fpga-gpio3");
LN2_PIN_MUX(FPGA_GPIO4, "fpga-gpio4");
LN2_PIN_MUX(FPGA_GPIO5, "fpga-gpio5");
LN2_PIN_MUX(FPGA_GPIO6, "fpga-gpio6");
LN2_PIN_MUX(CDC_GPIO1, "codec-gpio1");
LN2_PIN_MUX(CDC_GPIO2, "codec-gpio2");
LN2_PIN_MUX(CDC_GPIO3, "codec-gpio3");
LN2_PIN_MUX(CDC_GPIO4, "codec-gpio4");
LN2_PIN_MUX(CDC_GPIO5, "codec-gpio5");
LN2_PIN_MUX(CDC_GPIO6, "codec-gpio6");
LN2_PIN_MUX(CDC_GPIO7, "codec-gpio7");
LN2_PIN_MUX(CDC_GPIO8, "codec-gpio8");
LN2_PIN_MUX(DSP_GPIO1, "dsp-gpio1");
LN2_PIN_MUX(DSP_GPIO2, "dsp-gpio2");
LN2_PIN_MUX(DSP_GPIO3, "dsp-gpio3");
LN2_PIN_MUX(DSP_GPIO4, "dsp-gpio4");
LN2_PIN_MUX(DSP_GPIO5, "dsp-gpio5");
LN2_PIN_MUX(DSP_GPIO6, "dsp-gpio6");
LN2_PIN_MUX(GF_GPIO2, "gf-gpio2");
LN2_PIN_MUX(GF_GPIO3, "gf-gpio3");
LN2_PIN_MUX(GF_GPIO7, "gf-gpio7");
LN2_PIN_MUX(DSP_UART1_RX, "dsp-uart1-rx");
LN2_PIN_MUX(DSP_UART1_TX, "dsp-uart1-tx");
LN2_PIN_MUX(DSP_UART2_RX, "dsp-uart2-rx");
LN2_PIN_MUX(DSP_UART2_TX, "dsp-uart2-tx");
LN2_PIN_MUX(GF_UART2_RX, "gf-uart2-rx");
LN2_PIN_MUX(GF_UART2_TX, "gf-uart2-tx");
LN2_PIN_MUX(USB_UART_RX, "usb-uart-rx");
LN2_PIN_MUX(CDC_PDMCLK1, "codec-pdmclk1");
LN2_PIN_MUX(CDC_PDMDAT1, "codec-pdmdat1");
LN2_PIN_MUX(CDC_PDMCLK2, "codec-pdmclk2");
LN2_PIN_MUX(CDC_PDMDAT2, "codec-pdmdat2");
LN2_PIN_MUX(CDC_DMICCLK1, "codec-dmicclk1");
LN2_PIN_MUX(CDC_DMICDAT1, "codec-dmicdat1");
LN2_PIN_MUX(CDC_DMICCLK2, "codec-dmicclk2");
LN2_PIN_MUX(CDC_DMICDAT2, "codec-dmicdat2");
LN2_PIN_MUX(CDC_DMICCLK3, "codec-dmicclk3");
LN2_PIN_MUX(CDC_DMICDAT3, "codec-dmicdat3");
LN2_PIN_MUX(CDC_DMICCLK4, "codec-dmicclk4");
LN2_PIN_MUX(CDC_DMICDAT4, "codec-dmicdat4");
LN2_PIN_MUX(DSP_DMICCLK1, "dsp-dmicclk1");
LN2_PIN_MUX(DSP_DMICDAT1, "dsp-dmicdat1");
LN2_PIN_MUX(DSP_DMICCLK2, "dsp-dmicclk2");
LN2_PIN_MUX(DSP_DMICDAT2, "dsp-dmicdat2");
LN2_PIN_MUX(I2C2_SCL, "i2c2-scl");
LN2_PIN_MUX(I2C2_SDA, "i2c2-sda");
LN2_PIN_MUX(I2C3_SCL, "i2c3-scl");
LN2_PIN_MUX(I2C3_SDA, "i2c3-sda");
LN2_PIN_MUX(I2C4_SCL, "i2c4-scl");
LN2_PIN_MUX(I2C4_SDA, "i2c4-sda");
LN2_PIN_MUX(DSP_STANDBY, "dsp-standby");
LN2_PIN_MUX(CDC_MCLK1, "codec-mclk1");
LN2_PIN_MUX(CDC_MCLK2, "codec-mclk2");
LN2_PIN_MUX(DSP_CLKIN, "dsp-clkin");
LN2_PIN_MUX(PSIA1_MCLK, "psia1-mclk");
LN2_PIN_MUX(PSIA2_MCLK, "psia2-mclk");
LN2_PIN_MUX(GF_GPIO1, "gf-gpio1");
LN2_PIN_MUX(GF_GPIO5, "gf-gpio5");
LN2_PIN_MUX(DSP_GPIO20, "dsp-gpio20");
LN2_PIN_GAI(CDC_AIF1);
LN2_PIN_GAI(CDC_AIF2);
LN2_PIN_GAI(CDC_AIF3);
LN2_PIN_GAI(DSP_AIF1);
LN2_PIN_GAI(DSP_AIF2);
LN2_PIN_GAI(PSIA1);
LN2_PIN_GAI(PSIA2);
LN2_PIN_GAI(GF_AIF1);
LN2_PIN_GAI(GF_AIF2);
LN2_PIN_GAI(GF_AIF3);
LN2_PIN_GAI(GF_AIF4);
LN2_PIN_AIF(SPDIF_AIF);
LN2_PIN_AIF(USB_AIF1);
LN2_PIN_AIF(USB_AIF2);
LN2_PIN_AIF(ADAT_AIF);
LN2_PIN_AIF(SOUNDCARD_AIF);
static const struct pinctrl_pin_desc lochnagar1_pins[] = {
LN1_PIN(CDC_RESET), LN1_PIN(DSP_RESET), LN1_PIN(CDC_CIF1MODE),
LN1_PIN(GF_GPIO2), LN1_PIN(GF_GPIO3), LN1_PIN(GF_GPIO7),
LN1_PIN(LED1), LN1_PIN(LED2),
LN1_PINS(CDC_AIF1), LN1_PINS(CDC_AIF2), LN1_PINS(CDC_AIF3),
LN1_PINS(DSP_AIF1), LN1_PINS(DSP_AIF2),
LN1_PINS(PSIA1), LN1_PINS(PSIA2),
LN1_PINS(SPDIF_AIF),
LN1_PINS(GF_AIF1), LN1_PINS(GF_AIF2),
LN1_PINS(GF_AIF3), LN1_PINS(GF_AIF4),
};
static const struct pinctrl_pin_desc lochnagar2_pins[] = {
LN2_PIN(CDC_RESET), LN2_PIN(DSP_RESET), LN2_PIN(CDC_CIF1MODE),
LN2_PIN(CDC_LDOENA),
LN2_PIN(SPDIF_HWMODE), LN2_PIN(SPDIF_RESET),
LN2_PIN(FPGA_GPIO1), LN2_PIN(FPGA_GPIO2), LN2_PIN(FPGA_GPIO3),
LN2_PIN(FPGA_GPIO4), LN2_PIN(FPGA_GPIO5), LN2_PIN(FPGA_GPIO6),
LN2_PIN(CDC_GPIO1), LN2_PIN(CDC_GPIO2), LN2_PIN(CDC_GPIO3),
LN2_PIN(CDC_GPIO4), LN2_PIN(CDC_GPIO5), LN2_PIN(CDC_GPIO6),
LN2_PIN(CDC_GPIO7), LN2_PIN(CDC_GPIO8),
LN2_PIN(DSP_GPIO1), LN2_PIN(DSP_GPIO2), LN2_PIN(DSP_GPIO3),
LN2_PIN(DSP_GPIO4), LN2_PIN(DSP_GPIO5), LN2_PIN(DSP_GPIO6),
LN2_PIN(DSP_GPIO20),
LN2_PIN(GF_GPIO1), LN2_PIN(GF_GPIO2), LN2_PIN(GF_GPIO3),
LN2_PIN(GF_GPIO5), LN2_PIN(GF_GPIO7),
LN2_PINS(CDC_AIF1), LN2_PINS(CDC_AIF2), LN2_PINS(CDC_AIF3),
LN2_PINS(DSP_AIF1), LN2_PINS(DSP_AIF2),
LN2_PINS(PSIA1), LN2_PINS(PSIA2),
LN2_PINS(GF_AIF1), LN2_PINS(GF_AIF2),
LN2_PINS(GF_AIF3), LN2_PINS(GF_AIF4),
LN2_PIN(DSP_UART1_RX), LN2_PIN(DSP_UART1_TX),
LN2_PIN(DSP_UART2_RX), LN2_PIN(DSP_UART2_TX),
LN2_PIN(GF_UART2_RX), LN2_PIN(GF_UART2_TX),
LN2_PIN(USB_UART_RX),
LN2_PIN(CDC_PDMCLK1), LN2_PIN(CDC_PDMDAT1),
LN2_PIN(CDC_PDMCLK2), LN2_PIN(CDC_PDMDAT2),
LN2_PIN(CDC_DMICCLK1), LN2_PIN(CDC_DMICDAT1),
LN2_PIN(CDC_DMICCLK2), LN2_PIN(CDC_DMICDAT2),
LN2_PIN(CDC_DMICCLK3), LN2_PIN(CDC_DMICDAT3),
LN2_PIN(CDC_DMICCLK4), LN2_PIN(CDC_DMICDAT4),
LN2_PIN(DSP_DMICCLK1), LN2_PIN(DSP_DMICDAT1),
LN2_PIN(DSP_DMICCLK2), LN2_PIN(DSP_DMICDAT2),
LN2_PIN(I2C2_SCL), LN2_PIN(I2C2_SDA),
LN2_PIN(I2C3_SCL), LN2_PIN(I2C3_SDA),
LN2_PIN(I2C4_SCL), LN2_PIN(I2C4_SDA),
LN2_PIN(DSP_STANDBY),
LN2_PIN(CDC_MCLK1), LN2_PIN(CDC_MCLK2),
LN2_PIN(DSP_CLKIN),
LN2_PIN(PSIA1_MCLK), LN2_PIN(PSIA2_MCLK),
LN2_PINS(SPDIF_AIF),
LN2_PINS(USB_AIF1), LN2_PINS(USB_AIF2),
LN2_PINS(ADAT_AIF),
LN2_PINS(SOUNDCARD_AIF),
};
#define LN_AIF_PINS(REV, ID) \
LOCHNAGAR##REV##_PIN_##ID##_BCLK, \
LOCHNAGAR##REV##_PIN_##ID##_LRCLK, \
LOCHNAGAR##REV##_PIN_##ID##_TXDAT, \
LOCHNAGAR##REV##_PIN_##ID##_RXDAT,
#define LN1_AIF(ID, CTRL) \
static const struct lochnagar_aif lochnagar1_##ID##_aif = { \
.name = LN_##ID##_STR, \
.pins = { LN_AIF_PINS(1, ID) }, \
.src_reg = LOCHNAGAR1_##ID##_SEL, \
.src_mask = LOCHNAGAR1_SRC_MASK, \
.ctrl_reg = LOCHNAGAR1_##CTRL, \
.ena_mask = LOCHNAGAR1_##ID##_ENA_MASK, \
.master_mask = LOCHNAGAR1_##ID##_LRCLK_DIR_MASK | \
LOCHNAGAR1_##ID##_BCLK_DIR_MASK, \
}
#define LN2_AIF(ID) \
static const struct lochnagar_aif lochnagar2_##ID##_aif = { \
.name = LN_##ID##_STR, \
.pins = { LN_AIF_PINS(2, ID) }, \
.src_reg = LOCHNAGAR2_##ID##_CTRL, \
.src_mask = LOCHNAGAR2_AIF_SRC_MASK, \
.ctrl_reg = LOCHNAGAR2_##ID##_CTRL, \
.ena_mask = LOCHNAGAR2_AIF_ENA_MASK, \
.master_mask = LOCHNAGAR2_AIF_LRCLK_DIR_MASK | \
LOCHNAGAR2_AIF_BCLK_DIR_MASK, \
}
struct lochnagar_aif {
const char name[16];
unsigned int pins[4];
u16 src_reg;
u16 src_mask;
u16 ctrl_reg;
u16 ena_mask;
u16 master_mask;
};
LN1_AIF(CDC_AIF1, CDC_AIF_CTRL1);
LN1_AIF(CDC_AIF2, CDC_AIF_CTRL1);
LN1_AIF(CDC_AIF3, CDC_AIF_CTRL2);
LN1_AIF(DSP_AIF1, DSP_AIF);
LN1_AIF(DSP_AIF2, DSP_AIF);
LN1_AIF(PSIA1, PSIA_AIF);
LN1_AIF(PSIA2, PSIA_AIF);
LN1_AIF(GF_AIF1, GF_AIF1);
LN1_AIF(GF_AIF2, GF_AIF2);
LN1_AIF(GF_AIF3, GF_AIF1);
LN1_AIF(GF_AIF4, GF_AIF2);
LN1_AIF(SPDIF_AIF, EXT_AIF_CTRL);
LN2_AIF(CDC_AIF1);
LN2_AIF(CDC_AIF2);
LN2_AIF(CDC_AIF3);
LN2_AIF(DSP_AIF1);
LN2_AIF(DSP_AIF2);
LN2_AIF(PSIA1);
LN2_AIF(PSIA2);
LN2_AIF(GF_AIF1);
LN2_AIF(GF_AIF2);
LN2_AIF(GF_AIF3);
LN2_AIF(GF_AIF4);
LN2_AIF(SPDIF_AIF);
LN2_AIF(USB_AIF1);
LN2_AIF(USB_AIF2);
LN2_AIF(ADAT_AIF);
LN2_AIF(SOUNDCARD_AIF);
#define LN2_OP_AIF 0x00
#define LN2_OP_GPIO 0xFE
#define LN_FUNC(NAME, TYPE, OP) \
{ .name = NAME, .type = LN_FTYPE_##TYPE, .op = OP }
#define LN_FUNC_PIN(REV, ID, OP) \
LN_FUNC(lochnagar##REV##_##ID##_pin.name, PIN, OP)
#define LN1_FUNC_PIN(ID, OP) LN_FUNC_PIN(1, ID, OP)
#define LN2_FUNC_PIN(ID, OP) LN_FUNC_PIN(2, ID, OP)
#define LN_FUNC_AIF(REV, ID, OP) \
LN_FUNC(lochnagar##REV##_##ID##_aif.name, AIF, OP)
#define LN1_FUNC_AIF(ID, OP) LN_FUNC_AIF(1, ID, OP)
#define LN2_FUNC_AIF(ID, OP) LN_FUNC_AIF(2, ID, OP)
#define LN2_FUNC_GAI(ID, OP, BOP, LROP, RXOP, TXOP) \
LN2_FUNC_AIF(ID, OP), \
LN_FUNC(lochnagar2_##ID##_BCLK_pin.name, PIN, BOP), \
LN_FUNC(lochnagar2_##ID##_LRCLK_pin.name, PIN, LROP), \
LN_FUNC(lochnagar2_##ID##_RXDAT_pin.name, PIN, RXOP), \
LN_FUNC(lochnagar2_##ID##_TXDAT_pin.name, PIN, TXOP)
enum lochnagar_func_type {
LN_FTYPE_PIN,
LN_FTYPE_AIF,
LN_FTYPE_COUNT,
};
struct lochnagar_func {
const char * const name;
enum lochnagar_func_type type;
u8 op;
};
static const struct lochnagar_func lochnagar1_funcs[] = {
LN_FUNC("dsp-gpio1", PIN, 0x01),
LN_FUNC("dsp-gpio2", PIN, 0x02),
LN_FUNC("dsp-gpio3", PIN, 0x03),
LN_FUNC("codec-gpio1", PIN, 0x04),
LN_FUNC("codec-gpio2", PIN, 0x05),
LN_FUNC("codec-gpio3", PIN, 0x06),
LN_FUNC("codec-gpio4", PIN, 0x07),
LN_FUNC("codec-gpio5", PIN, 0x08),
LN_FUNC("codec-gpio6", PIN, 0x09),
LN_FUNC("codec-gpio7", PIN, 0x0A),
LN_FUNC("codec-gpio8", PIN, 0x0B),
LN1_FUNC_PIN(GF_GPIO2, 0x0C),
LN1_FUNC_PIN(GF_GPIO3, 0x0D),
LN1_FUNC_PIN(GF_GPIO7, 0x0E),
LN1_FUNC_AIF(SPDIF_AIF, 0x01),
LN1_FUNC_AIF(PSIA1, 0x02),
LN1_FUNC_AIF(PSIA2, 0x03),
LN1_FUNC_AIF(CDC_AIF1, 0x04),
LN1_FUNC_AIF(CDC_AIF2, 0x05),
LN1_FUNC_AIF(CDC_AIF3, 0x06),
LN1_FUNC_AIF(DSP_AIF1, 0x07),
LN1_FUNC_AIF(DSP_AIF2, 0x08),
LN1_FUNC_AIF(GF_AIF3, 0x09),
LN1_FUNC_AIF(GF_AIF4, 0x0A),
LN1_FUNC_AIF(GF_AIF1, 0x0B),
LN1_FUNC_AIF(GF_AIF2, 0x0C),
};
static const struct lochnagar_func lochnagar2_funcs[] = {
LN_FUNC("aif", PIN, LN2_OP_AIF),
LN2_FUNC_PIN(FPGA_GPIO1, 0x01),
LN2_FUNC_PIN(FPGA_GPIO2, 0x02),
LN2_FUNC_PIN(FPGA_GPIO3, 0x03),
LN2_FUNC_PIN(FPGA_GPIO4, 0x04),
LN2_FUNC_PIN(FPGA_GPIO5, 0x05),
LN2_FUNC_PIN(FPGA_GPIO6, 0x06),
LN2_FUNC_PIN(CDC_GPIO1, 0x07),
LN2_FUNC_PIN(CDC_GPIO2, 0x08),
LN2_FUNC_PIN(CDC_GPIO3, 0x09),
LN2_FUNC_PIN(CDC_GPIO4, 0x0A),
LN2_FUNC_PIN(CDC_GPIO5, 0x0B),
LN2_FUNC_PIN(CDC_GPIO6, 0x0C),
LN2_FUNC_PIN(CDC_GPIO7, 0x0D),
LN2_FUNC_PIN(CDC_GPIO8, 0x0E),
LN2_FUNC_PIN(DSP_GPIO1, 0x0F),
LN2_FUNC_PIN(DSP_GPIO2, 0x10),
LN2_FUNC_PIN(DSP_GPIO3, 0x11),
LN2_FUNC_PIN(DSP_GPIO4, 0x12),
LN2_FUNC_PIN(DSP_GPIO5, 0x13),
LN2_FUNC_PIN(DSP_GPIO6, 0x14),
LN2_FUNC_PIN(GF_GPIO2, 0x15),
LN2_FUNC_PIN(GF_GPIO3, 0x16),
LN2_FUNC_PIN(GF_GPIO7, 0x17),
LN2_FUNC_PIN(GF_GPIO1, 0x18),
LN2_FUNC_PIN(GF_GPIO5, 0x19),
LN2_FUNC_PIN(DSP_GPIO20, 0x1A),
LN_FUNC("codec-clkout", PIN, 0x20),
LN_FUNC("dsp-clkout", PIN, 0x21),
LN_FUNC("pmic-32k", PIN, 0x22),
LN_FUNC("spdif-clkout", PIN, 0x23),
LN_FUNC("clk-12m288", PIN, 0x24),
LN_FUNC("clk-11m2986", PIN, 0x25),
LN_FUNC("clk-24m576", PIN, 0x26),
LN_FUNC("clk-22m5792", PIN, 0x27),
LN_FUNC("xmos-mclk", PIN, 0x29),
LN_FUNC("gf-clkout1", PIN, 0x2A),
LN_FUNC("gf-mclk1", PIN, 0x2B),
LN_FUNC("gf-mclk3", PIN, 0x2C),
LN_FUNC("gf-mclk2", PIN, 0x2D),
LN_FUNC("gf-clkout2", PIN, 0x2E),
LN2_FUNC_PIN(CDC_MCLK1, 0x2F),
LN2_FUNC_PIN(CDC_MCLK2, 0x30),
LN2_FUNC_PIN(DSP_CLKIN, 0x31),
LN2_FUNC_PIN(PSIA1_MCLK, 0x32),
LN2_FUNC_PIN(PSIA2_MCLK, 0x33),
LN_FUNC("spdif-mclk", PIN, 0x34),
LN_FUNC("codec-irq", PIN, 0x42),
LN2_FUNC_PIN(CDC_RESET, 0x43),
LN2_FUNC_PIN(DSP_RESET, 0x44),
LN_FUNC("dsp-irq", PIN, 0x45),
LN2_FUNC_PIN(DSP_STANDBY, 0x46),
LN2_FUNC_PIN(CDC_PDMCLK1, 0x90),
LN2_FUNC_PIN(CDC_PDMDAT1, 0x91),
LN2_FUNC_PIN(CDC_PDMCLK2, 0x92),
LN2_FUNC_PIN(CDC_PDMDAT2, 0x93),
LN2_FUNC_PIN(CDC_DMICCLK1, 0xA0),
LN2_FUNC_PIN(CDC_DMICDAT1, 0xA1),
LN2_FUNC_PIN(CDC_DMICCLK2, 0xA2),
LN2_FUNC_PIN(CDC_DMICDAT2, 0xA3),
LN2_FUNC_PIN(CDC_DMICCLK3, 0xA4),
LN2_FUNC_PIN(CDC_DMICDAT3, 0xA5),
LN2_FUNC_PIN(CDC_DMICCLK4, 0xA6),
LN2_FUNC_PIN(CDC_DMICDAT4, 0xA7),
LN2_FUNC_PIN(DSP_DMICCLK1, 0xA8),
LN2_FUNC_PIN(DSP_DMICDAT1, 0xA9),
LN2_FUNC_PIN(DSP_DMICCLK2, 0xAA),
LN2_FUNC_PIN(DSP_DMICDAT2, 0xAB),
LN2_FUNC_PIN(DSP_UART1_RX, 0xC0),
LN2_FUNC_PIN(DSP_UART1_TX, 0xC1),
LN2_FUNC_PIN(DSP_UART2_RX, 0xC2),
LN2_FUNC_PIN(DSP_UART2_TX, 0xC3),
LN2_FUNC_PIN(GF_UART2_RX, 0xC4),
LN2_FUNC_PIN(GF_UART2_TX, 0xC5),
LN2_FUNC_PIN(USB_UART_RX, 0xC6),
LN_FUNC("usb-uart-tx", PIN, 0xC7),
LN2_FUNC_PIN(I2C2_SCL, 0xE0),
LN2_FUNC_PIN(I2C2_SDA, 0xE1),
LN2_FUNC_PIN(I2C3_SCL, 0xE2),
LN2_FUNC_PIN(I2C3_SDA, 0xE3),
LN2_FUNC_PIN(I2C4_SCL, 0xE4),
LN2_FUNC_PIN(I2C4_SDA, 0xE5),
LN2_FUNC_AIF(SPDIF_AIF, 0x01),
LN2_FUNC_GAI(PSIA1, 0x02, 0x50, 0x51, 0x52, 0x53),
LN2_FUNC_GAI(PSIA2, 0x03, 0x54, 0x55, 0x56, 0x57),
LN2_FUNC_GAI(CDC_AIF1, 0x04, 0x59, 0x5B, 0x5A, 0x58),
LN2_FUNC_GAI(CDC_AIF2, 0x05, 0x5D, 0x5F, 0x5E, 0x5C),
LN2_FUNC_GAI(CDC_AIF3, 0x06, 0x61, 0x62, 0x63, 0x60),
LN2_FUNC_GAI(DSP_AIF1, 0x07, 0x65, 0x67, 0x66, 0x64),
LN2_FUNC_GAI(DSP_AIF2, 0x08, 0x69, 0x6B, 0x6A, 0x68),
LN2_FUNC_GAI(GF_AIF3, 0x09, 0x6D, 0x6F, 0x6C, 0x6E),
LN2_FUNC_GAI(GF_AIF4, 0x0A, 0x71, 0x73, 0x70, 0x72),
LN2_FUNC_GAI(GF_AIF1, 0x0B, 0x75, 0x77, 0x74, 0x76),
LN2_FUNC_GAI(GF_AIF2, 0x0C, 0x79, 0x7B, 0x78, 0x7A),
LN2_FUNC_AIF(USB_AIF1, 0x0D),
LN2_FUNC_AIF(USB_AIF2, 0x0E),
LN2_FUNC_AIF(ADAT_AIF, 0x0F),
LN2_FUNC_AIF(SOUNDCARD_AIF, 0x10),
};
#define LN_GROUP_PIN(REV, ID) { \
.name = lochnagar##REV##_##ID##_pin.name, \
.type = LN_FTYPE_PIN, \
.pins = &lochnagar##REV##_pins[LOCHNAGAR##REV##_PIN_##ID].number, \
.npins = 1, \
.priv = &lochnagar##REV##_pins[LOCHNAGAR##REV##_PIN_##ID], \
}
#define LN_GROUP_AIF(REV, ID) { \
.name = lochnagar##REV##_##ID##_aif.name, \
.type = LN_FTYPE_AIF, \
.pins = lochnagar##REV##_##ID##_aif.pins, \
.npins = ARRAY_SIZE(lochnagar##REV##_##ID##_aif.pins), \
.priv = &lochnagar##REV##_##ID##_aif, \
}
#define LN1_GROUP_PIN(ID) LN_GROUP_PIN(1, ID)
#define LN2_GROUP_PIN(ID) LN_GROUP_PIN(2, ID)
#define LN1_GROUP_AIF(ID) LN_GROUP_AIF(1, ID)
#define LN2_GROUP_AIF(ID) LN_GROUP_AIF(2, ID)
#define LN2_GROUP_GAI(ID) \
LN2_GROUP_AIF(ID), \
LN2_GROUP_PIN(ID##_BCLK), LN2_GROUP_PIN(ID##_LRCLK), \
LN2_GROUP_PIN(ID##_RXDAT), LN2_GROUP_PIN(ID##_TXDAT)
struct lochnagar_group {
const char * const name;
enum lochnagar_func_type type;
const unsigned int *pins;
unsigned int npins;
const void *priv;
};
static const struct lochnagar_group lochnagar1_groups[] = {
LN1_GROUP_PIN(GF_GPIO2), LN1_GROUP_PIN(GF_GPIO3),
LN1_GROUP_PIN(GF_GPIO7),
LN1_GROUP_PIN(LED1), LN1_GROUP_PIN(LED2),
LN1_GROUP_AIF(CDC_AIF1), LN1_GROUP_AIF(CDC_AIF2),
LN1_GROUP_AIF(CDC_AIF3),
LN1_GROUP_AIF(DSP_AIF1), LN1_GROUP_AIF(DSP_AIF2),
LN1_GROUP_AIF(PSIA1), LN1_GROUP_AIF(PSIA2),
LN1_GROUP_AIF(GF_AIF1), LN1_GROUP_AIF(GF_AIF2),
LN1_GROUP_AIF(GF_AIF3), LN1_GROUP_AIF(GF_AIF4),
LN1_GROUP_AIF(SPDIF_AIF),
};
static const struct lochnagar_group lochnagar2_groups[] = {
LN2_GROUP_PIN(FPGA_GPIO1), LN2_GROUP_PIN(FPGA_GPIO2),
LN2_GROUP_PIN(FPGA_GPIO3), LN2_GROUP_PIN(FPGA_GPIO4),
LN2_GROUP_PIN(FPGA_GPIO5), LN2_GROUP_PIN(FPGA_GPIO6),
LN2_GROUP_PIN(CDC_GPIO1), LN2_GROUP_PIN(CDC_GPIO2),
LN2_GROUP_PIN(CDC_GPIO3), LN2_GROUP_PIN(CDC_GPIO4),
LN2_GROUP_PIN(CDC_GPIO5), LN2_GROUP_PIN(CDC_GPIO6),
LN2_GROUP_PIN(CDC_GPIO7), LN2_GROUP_PIN(CDC_GPIO8),
LN2_GROUP_PIN(DSP_GPIO1), LN2_GROUP_PIN(DSP_GPIO2),
LN2_GROUP_PIN(DSP_GPIO3), LN2_GROUP_PIN(DSP_GPIO4),
LN2_GROUP_PIN(DSP_GPIO5), LN2_GROUP_PIN(DSP_GPIO6),
LN2_GROUP_PIN(DSP_GPIO20),
LN2_GROUP_PIN(GF_GPIO1),
LN2_GROUP_PIN(GF_GPIO2), LN2_GROUP_PIN(GF_GPIO5),
LN2_GROUP_PIN(GF_GPIO3), LN2_GROUP_PIN(GF_GPIO7),
LN2_GROUP_PIN(DSP_UART1_RX), LN2_GROUP_PIN(DSP_UART1_TX),
LN2_GROUP_PIN(DSP_UART2_RX), LN2_GROUP_PIN(DSP_UART2_TX),
LN2_GROUP_PIN(GF_UART2_RX), LN2_GROUP_PIN(GF_UART2_TX),
LN2_GROUP_PIN(USB_UART_RX),
LN2_GROUP_PIN(CDC_PDMCLK1), LN2_GROUP_PIN(CDC_PDMDAT1),
LN2_GROUP_PIN(CDC_PDMCLK2), LN2_GROUP_PIN(CDC_PDMDAT2),
LN2_GROUP_PIN(CDC_DMICCLK1), LN2_GROUP_PIN(CDC_DMICDAT1),
LN2_GROUP_PIN(CDC_DMICCLK2), LN2_GROUP_PIN(CDC_DMICDAT2),
LN2_GROUP_PIN(CDC_DMICCLK3), LN2_GROUP_PIN(CDC_DMICDAT3),
LN2_GROUP_PIN(CDC_DMICCLK4), LN2_GROUP_PIN(CDC_DMICDAT4),
LN2_GROUP_PIN(DSP_DMICCLK1), LN2_GROUP_PIN(DSP_DMICDAT1),
LN2_GROUP_PIN(DSP_DMICCLK2), LN2_GROUP_PIN(DSP_DMICDAT2),
LN2_GROUP_PIN(I2C2_SCL), LN2_GROUP_PIN(I2C2_SDA),
LN2_GROUP_PIN(I2C3_SCL), LN2_GROUP_PIN(I2C3_SDA),
LN2_GROUP_PIN(I2C4_SCL), LN2_GROUP_PIN(I2C4_SDA),
LN2_GROUP_PIN(DSP_STANDBY),
LN2_GROUP_PIN(CDC_MCLK1), LN2_GROUP_PIN(CDC_MCLK2),
LN2_GROUP_PIN(DSP_CLKIN),
LN2_GROUP_PIN(PSIA1_MCLK), LN2_GROUP_PIN(PSIA2_MCLK),
LN2_GROUP_GAI(CDC_AIF1), LN2_GROUP_GAI(CDC_AIF2),
LN2_GROUP_GAI(CDC_AIF3),
LN2_GROUP_GAI(DSP_AIF1), LN2_GROUP_GAI(DSP_AIF2),
LN2_GROUP_GAI(PSIA1), LN2_GROUP_GAI(PSIA2),
LN2_GROUP_GAI(GF_AIF1), LN2_GROUP_GAI(GF_AIF2),
LN2_GROUP_GAI(GF_AIF3), LN2_GROUP_GAI(GF_AIF4),
LN2_GROUP_AIF(SPDIF_AIF),
LN2_GROUP_AIF(USB_AIF1), LN2_GROUP_AIF(USB_AIF2),
LN2_GROUP_AIF(ADAT_AIF),
LN2_GROUP_AIF(SOUNDCARD_AIF),
};
struct lochnagar_func_groups {
const char **groups;
unsigned int ngroups;
};
struct lochnagar_pin_priv {
struct lochnagar *lochnagar;
struct device *dev;
const struct lochnagar_func *funcs;
unsigned int nfuncs;
const struct pinctrl_pin_desc *pins;
unsigned int npins;
const struct lochnagar_group *groups;
unsigned int ngroups;
struct lochnagar_func_groups func_groups[LN_FTYPE_COUNT];
struct gpio_chip gpio_chip;
};
static int lochnagar_get_groups_count(struct pinctrl_dev *pctldev)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
return priv->ngroups;
}
static const char *lochnagar_get_group_name(struct pinctrl_dev *pctldev,
unsigned int group_idx)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
return priv->groups[group_idx].name;
}
static int lochnagar_get_group_pins(struct pinctrl_dev *pctldev,
unsigned int group_idx,
const unsigned int **pins,
unsigned int *num_pins)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
*pins = priv->groups[group_idx].pins;
*num_pins = priv->groups[group_idx].npins;
return 0;
}
static const struct pinctrl_ops lochnagar_pin_group_ops = {
.get_groups_count = lochnagar_get_groups_count,
.get_group_name = lochnagar_get_group_name,
.get_group_pins = lochnagar_get_group_pins,
.dt_node_to_map = pinconf_generic_dt_node_to_map_all,
.dt_free_map = pinctrl_utils_free_map,
};
static int lochnagar_get_funcs_count(struct pinctrl_dev *pctldev)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
return priv->nfuncs;
}
static const char *lochnagar_get_func_name(struct pinctrl_dev *pctldev,
unsigned int func_idx)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
return priv->funcs[func_idx].name;
}
static int lochnagar_get_func_groups(struct pinctrl_dev *pctldev,
unsigned int func_idx,
const char * const **groups,
unsigned int * const num_groups)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
int func_type;
func_type = priv->funcs[func_idx].type;
*groups = priv->func_groups[func_type].groups;
*num_groups = priv->func_groups[func_type].ngroups;
return 0;
}
static int lochnagar2_get_gpio_chan(struct lochnagar_pin_priv *priv,
unsigned int op)
{
struct regmap *regmap = priv->lochnagar->regmap;
unsigned int val;
int free = -1;
int i, ret;
for (i = 0; i < LN2_NUM_GPIO_CHANNELS; i++) {
ret = regmap_read(regmap, LOCHNAGAR2_GPIO_CHANNEL1 + i, &val);
if (ret)
return ret;
val &= LOCHNAGAR2_GPIO_CHANNEL_SRC_MASK;
if (val == op)
return i + 1;
if (free < 0 && !val)
free = i;
}
if (free >= 0) {
ret = regmap_update_bits(regmap,
LOCHNAGAR2_GPIO_CHANNEL1 + free,
LOCHNAGAR2_GPIO_CHANNEL_SRC_MASK, op);
if (ret)
return ret;
free++;
dev_dbg(priv->dev, "Set channel %d to 0x%x\n", free, op);
return free;
}
return -ENOSPC;
}
static int lochnagar_pin_set_mux(struct lochnagar_pin_priv *priv,
const struct lochnagar_pin *pin,
unsigned int op)
{
int ret;
switch (priv->lochnagar->type) {
case LOCHNAGAR1:
break;
default:
ret = lochnagar2_get_gpio_chan(priv, op);
if (ret < 0) {
dev_err(priv->dev, "Failed to get channel for %s: %d\n",
pin->name, ret);
return ret;
}
op = ret;
break;
}
dev_dbg(priv->dev, "Set pin %s to 0x%x\n", pin->name, op);
ret = regmap_write(priv->lochnagar->regmap, pin->reg, op);
if (ret)
dev_err(priv->dev, "Failed to set %s mux: %d\n",
pin->name, ret);
return 0;
}
static int lochnagar_aif_set_mux(struct lochnagar_pin_priv *priv,
const struct lochnagar_group *group,
unsigned int op)
{
struct regmap *regmap = priv->lochnagar->regmap;
const struct lochnagar_aif *aif = group->priv;
const struct lochnagar_pin *pin;
int i, ret;
ret = regmap_update_bits(regmap, aif->src_reg, aif->src_mask, op);
if (ret) {
dev_err(priv->dev, "Failed to set %s source: %d\n",
group->name, ret);
return ret;
}
ret = regmap_update_bits(regmap, aif->ctrl_reg,
aif->ena_mask, aif->ena_mask);
if (ret) {
dev_err(priv->dev, "Failed to set %s enable: %d\n",
group->name, ret);
return ret;
}
for (i = 0; i < group->npins; i++) {
pin = priv->pins[group->pins[i]].drv_data;
if (pin->type != LN_PTYPE_MUX)
continue;
dev_dbg(priv->dev, "Set pin %s to AIF\n", pin->name);
ret = regmap_update_bits(regmap, pin->reg,
LOCHNAGAR2_GPIO_SRC_MASK,
LN2_OP_AIF);
if (ret) {
dev_err(priv->dev, "Failed to set %s to AIF: %d\n",
pin->name, ret);
return ret;
}
}
return 0;
}
static int lochnagar_set_mux(struct pinctrl_dev *pctldev,
unsigned int func_idx, unsigned int group_idx)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
const struct lochnagar_func *func = &priv->funcs[func_idx];
const struct lochnagar_group *group = &priv->groups[group_idx];
const struct lochnagar_pin *pin;
switch (func->type) {
case LN_FTYPE_AIF:
dev_dbg(priv->dev, "Set group %s to %s\n",
group->name, func->name);
return lochnagar_aif_set_mux(priv, group, func->op);
case LN_FTYPE_PIN:
pin = priv->pins[*group->pins].drv_data;
dev_dbg(priv->dev, "Set pin %s to %s\n", pin->name, func->name);
return lochnagar_pin_set_mux(priv, pin, func->op);
default:
return -EINVAL;
}
}
static int lochnagar_gpio_request(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int offset)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
struct lochnagar *lochnagar = priv->lochnagar;
const struct lochnagar_pin *pin = priv->pins[offset].drv_data;
int ret;
dev_dbg(priv->dev, "Requesting GPIO %s\n", pin->name);
if (lochnagar->type == LOCHNAGAR1 || pin->type != LN_PTYPE_MUX)
return 0;
ret = lochnagar2_get_gpio_chan(priv, LN2_OP_GPIO);
if (ret < 0) {
dev_err(priv->dev, "Failed to get low channel: %d\n", ret);
return ret;
}
ret = lochnagar2_get_gpio_chan(priv, LN2_OP_GPIO | 0x1);
if (ret < 0) {
dev_err(priv->dev, "Failed to get high channel: %d\n", ret);
return ret;
}
return 0;
}
static int lochnagar_gpio_set_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned int offset,
bool input)
{
/* The GPIOs only support output */
if (input)
return -EINVAL;
return 0;
}
static const struct pinmux_ops lochnagar_pin_mux_ops = {
.get_functions_count = lochnagar_get_funcs_count,
.get_function_name = lochnagar_get_func_name,
.get_function_groups = lochnagar_get_func_groups,
.set_mux = lochnagar_set_mux,
.gpio_request_enable = lochnagar_gpio_request,
.gpio_set_direction = lochnagar_gpio_set_direction,
.strict = true,
};
static int lochnagar_aif_set_master(struct lochnagar_pin_priv *priv,
unsigned int group_idx, bool master)
{
struct regmap *regmap = priv->lochnagar->regmap;
const struct lochnagar_group *group = &priv->groups[group_idx];
const struct lochnagar_aif *aif = group->priv;
unsigned int val = 0;
int ret;
if (group->type != LN_FTYPE_AIF)
return -EINVAL;
if (!master)
val = aif->master_mask;
dev_dbg(priv->dev, "Set AIF %s to %s\n",
group->name, master ? "master" : "slave");
ret = regmap_update_bits(regmap, aif->ctrl_reg, aif->master_mask, val);
if (ret) {
dev_err(priv->dev, "Failed to set %s mode: %d\n",
group->name, ret);
return ret;
}
return 0;
}
static int lochnagar_conf_group_set(struct pinctrl_dev *pctldev,
unsigned int group_idx,
unsigned long *configs,
unsigned int num_configs)
{
struct lochnagar_pin_priv *priv = pinctrl_dev_get_drvdata(pctldev);
int i, ret;
for (i = 0; i < num_configs; i++) {
unsigned int param = pinconf_to_config_param(*configs);
switch (param) {
case PIN_CONFIG_OUTPUT_ENABLE:
ret = lochnagar_aif_set_master(priv, group_idx, true);
if (ret)
return ret;
break;
case PIN_CONFIG_INPUT_ENABLE:
ret = lochnagar_aif_set_master(priv, group_idx, false);
if (ret)
return ret;
break;
default:
return -ENOTSUPP;
}
configs++;
}
return 0;
}
static const struct pinconf_ops lochnagar_pin_conf_ops = {
.pin_config_group_set = lochnagar_conf_group_set,
};
static const struct pinctrl_desc lochnagar_pin_desc = {
.name = "lochnagar-pinctrl",
.owner = THIS_MODULE,
.pctlops = &lochnagar_pin_group_ops,
.pmxops = &lochnagar_pin_mux_ops,
.confops = &lochnagar_pin_conf_ops,
};
static void lochnagar_gpio_set(struct gpio_chip *chip,
unsigned int offset, int value)
{
struct lochnagar_pin_priv *priv = gpiochip_get_data(chip);
struct lochnagar *lochnagar = priv->lochnagar;
const struct lochnagar_pin *pin = priv->pins[offset].drv_data;
int ret;
value = !!value;
dev_dbg(priv->dev, "Set GPIO %s to %s\n",
pin->name, value ? "high" : "low");
switch (pin->type) {
case LN_PTYPE_MUX:
value |= LN2_OP_GPIO;
ret = lochnagar_pin_set_mux(priv, pin, value);
break;
case LN_PTYPE_GPIO:
if (pin->invert)
value = !value;
ret = regmap_update_bits(lochnagar->regmap, pin->reg,
BIT(pin->shift), value << pin->shift);
break;
default:
ret = -EINVAL;
break;
}
if (ret < 0)
dev_err(chip->parent, "Failed to set %s value: %d\n",
pin->name, ret);
}
static int lochnagar_gpio_direction_out(struct gpio_chip *chip,
unsigned int offset, int value)
{
lochnagar_gpio_set(chip, offset, value);
return pinctrl_gpio_direction_output(chip->base + offset);
}
static int lochnagar_fill_func_groups(struct lochnagar_pin_priv *priv)
{
struct lochnagar_func_groups *funcs;
int i;
for (i = 0; i < priv->ngroups; i++)
priv->func_groups[priv->groups[i].type].ngroups++;
for (i = 0; i < LN_FTYPE_COUNT; i++) {
funcs = &priv->func_groups[i];
if (!funcs->ngroups)
continue;
funcs->groups = devm_kcalloc(priv->dev, funcs->ngroups,
sizeof(*funcs->groups),
GFP_KERNEL);
if (!funcs->groups)
return -ENOMEM;
funcs->ngroups = 0;
}
for (i = 0; i < priv->ngroups; i++) {
funcs = &priv->func_groups[priv->groups[i].type];
funcs->groups[funcs->ngroups++] = priv->groups[i].name;
}
return 0;
}
static int lochnagar_pin_probe(struct platform_device *pdev)
{
struct lochnagar *lochnagar = dev_get_drvdata(pdev->dev.parent);
struct lochnagar_pin_priv *priv;
struct pinctrl_desc *desc;
struct pinctrl_dev *pctl;
struct device *dev = &pdev->dev;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->dev = dev;
priv->lochnagar = lochnagar;
desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL);
if (!desc)
return -ENOMEM;
*desc = lochnagar_pin_desc;
priv->gpio_chip.label = dev_name(dev);
priv->gpio_chip.request = gpiochip_generic_request;
priv->gpio_chip.free = gpiochip_generic_free;
priv->gpio_chip.direction_output = lochnagar_gpio_direction_out;
priv->gpio_chip.set = lochnagar_gpio_set;
priv->gpio_chip.can_sleep = true;
priv->gpio_chip.parent = dev;
priv->gpio_chip.base = -1;
switch (lochnagar->type) {
case LOCHNAGAR1:
priv->funcs = lochnagar1_funcs;
priv->nfuncs = ARRAY_SIZE(lochnagar1_funcs);
priv->pins = lochnagar1_pins;
priv->npins = ARRAY_SIZE(lochnagar1_pins);
priv->groups = lochnagar1_groups;
priv->ngroups = ARRAY_SIZE(lochnagar1_groups);
priv->gpio_chip.ngpio = LOCHNAGAR1_PIN_NUM_GPIOS;
break;
case LOCHNAGAR2:
priv->funcs = lochnagar2_funcs;
priv->nfuncs = ARRAY_SIZE(lochnagar2_funcs);
priv->pins = lochnagar2_pins;
priv->npins = ARRAY_SIZE(lochnagar2_pins);
priv->groups = lochnagar2_groups;
priv->ngroups = ARRAY_SIZE(lochnagar2_groups);
priv->gpio_chip.ngpio = LOCHNAGAR2_PIN_NUM_GPIOS;
break;
default:
dev_err(dev, "Unknown Lochnagar type: %d\n", lochnagar->type);
return -EINVAL;
}
ret = lochnagar_fill_func_groups(priv);
if (ret < 0)
return ret;
desc->pins = priv->pins;
desc->npins = priv->npins;
pctl = devm_pinctrl_register(dev, desc, priv);
if (IS_ERR(pctl)) {
ret = PTR_ERR(pctl);
dev_err(priv->dev, "Failed to register pinctrl: %d\n", ret);
return ret;
}
ret = devm_gpiochip_add_data(dev, &priv->gpio_chip, priv);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to register gpiochip: %d\n", ret);
return ret;
}
return 0;
}
static const struct of_device_id lochnagar_of_match[] = {
{ .compatible = "cirrus,lochnagar-pinctrl" },
{}
};
MODULE_DEVICE_TABLE(of, lochnagar_of_match);
static struct platform_driver lochnagar_pin_driver = {
.driver = {
.name = "lochnagar-pinctrl",
.of_match_table = of_match_ptr(lochnagar_of_match),
},
.probe = lochnagar_pin_probe,
};
module_platform_driver(lochnagar_pin_driver);
MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.cirrus.com>");
MODULE_DESCRIPTION("Pinctrl driver for Cirrus Logic Lochnagar Board");
MODULE_LICENSE("GPL v2");
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