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u-boot/drivers/pinctrl/qcom/pinctrl-ipq4019.c
Robert Marko 8c4c6a268e
pinctrl: qcom: ipq4019: support all pin functions 
Currently, IPQ4019 pinctrl driver supports only a very limited number of
pin functions and is not fully DT compatible with Linux pinctrl nodes.

IPQ40xx SoC-s sometimes use different pin function numbers for the same
function depending on the pin number, so for example I2C0 on GPIO58 uses
function number 3 while on GPIO59 it uses function number 2.

So, in order to make the driver compatible with upstream DTS to avoid the
need to patch the pinctrl nodes in U-Boot and support all of the missing
pin functions lets rework the driver based on upstream Linux IPQ4019
pinctrl driver and the pending SM8150 U-Boot pinctrl driver which also uses
different function numbers pased on the exact pin number.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
2024-04-23 13:29:21 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Qualcomm IPQ40xx pinctrl
*
* Copyright (c) 2019 Sartura Ltd.
*
* Author: Robert Marko <robert.marko@sartura.hr>
*/
#include <common.h>
#include <dm.h>
#include "pinctrl-qcom.h"
#define MAX_PIN_NAME_LEN 32
static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
enum ipq4019_functions {
qca_mux_gpio,
qca_mux_aud_pin,
qca_mux_audio_pwm,
qca_mux_blsp_i2c0,
qca_mux_blsp_i2c1,
qca_mux_blsp_spi0,
qca_mux_blsp_spi1,
qca_mux_blsp_uart0,
qca_mux_blsp_uart1,
qca_mux_chip_rst,
qca_mux_i2s_rx,
qca_mux_i2s_spdif_in,
qca_mux_i2s_spdif_out,
qca_mux_i2s_td,
qca_mux_i2s_tx,
qca_mux_jtag,
qca_mux_led0,
qca_mux_led1,
qca_mux_led2,
qca_mux_led3,
qca_mux_led4,
qca_mux_led5,
qca_mux_led6,
qca_mux_led7,
qca_mux_led8,
qca_mux_led9,
qca_mux_led10,
qca_mux_led11,
qca_mux_mdc,
qca_mux_mdio,
qca_mux_pcie,
qca_mux_pmu,
qca_mux_prng_rosc,
qca_mux_qpic,
qca_mux_rgmii,
qca_mux_rmii,
qca_mux_sdio,
qca_mux_smart0,
qca_mux_smart1,
qca_mux_smart2,
qca_mux_smart3,
qca_mux_tm,
qca_mux_wifi0,
qca_mux_wifi1,
qca_mux_NA,
};
#define QCA_PIN_FUNCTION(fname) \
[qca_mux_##fname] = {#fname, qca_mux_##fname}
static const struct pinctrl_function msm_pinctrl_functions[] = {
QCA_PIN_FUNCTION(aud_pin),
QCA_PIN_FUNCTION(audio_pwm),
QCA_PIN_FUNCTION(blsp_i2c0),
QCA_PIN_FUNCTION(blsp_i2c1),
QCA_PIN_FUNCTION(blsp_spi0),
QCA_PIN_FUNCTION(blsp_spi1),
QCA_PIN_FUNCTION(blsp_uart0),
QCA_PIN_FUNCTION(blsp_uart1),
QCA_PIN_FUNCTION(chip_rst),
QCA_PIN_FUNCTION(gpio),
QCA_PIN_FUNCTION(i2s_rx),
QCA_PIN_FUNCTION(i2s_spdif_in),
QCA_PIN_FUNCTION(i2s_spdif_out),
QCA_PIN_FUNCTION(i2s_td),
QCA_PIN_FUNCTION(i2s_tx),
QCA_PIN_FUNCTION(jtag),
QCA_PIN_FUNCTION(led0),
QCA_PIN_FUNCTION(led1),
QCA_PIN_FUNCTION(led2),
QCA_PIN_FUNCTION(led3),
QCA_PIN_FUNCTION(led4),
QCA_PIN_FUNCTION(led5),
QCA_PIN_FUNCTION(led6),
QCA_PIN_FUNCTION(led7),
QCA_PIN_FUNCTION(led8),
QCA_PIN_FUNCTION(led9),
QCA_PIN_FUNCTION(led10),
QCA_PIN_FUNCTION(led11),
QCA_PIN_FUNCTION(mdc),
QCA_PIN_FUNCTION(mdio),
QCA_PIN_FUNCTION(pcie),
QCA_PIN_FUNCTION(pmu),
QCA_PIN_FUNCTION(prng_rosc),
QCA_PIN_FUNCTION(qpic),
QCA_PIN_FUNCTION(rgmii),
QCA_PIN_FUNCTION(rmii),
QCA_PIN_FUNCTION(sdio),
QCA_PIN_FUNCTION(smart0),
QCA_PIN_FUNCTION(smart1),
QCA_PIN_FUNCTION(smart2),
QCA_PIN_FUNCTION(smart3),
QCA_PIN_FUNCTION(tm),
QCA_PIN_FUNCTION(wifi0),
QCA_PIN_FUNCTION(wifi1),
};
typedef unsigned int msm_pin_function[15];
#define PINGROUP(id, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14) \
[id] = { qca_mux_gpio, /* gpio mode */ \
qca_mux_##f1, \
qca_mux_##f2, \
qca_mux_##f3, \
qca_mux_##f4, \
qca_mux_##f5, \
qca_mux_##f6, \
qca_mux_##f7, \
qca_mux_##f8, \
qca_mux_##f9, \
qca_mux_##f10, \
qca_mux_##f11, \
qca_mux_##f12, \
qca_mux_##f13, \
qca_mux_##f14 \
}
static const msm_pin_function ipq4019_pin_functions[] = {
PINGROUP(0, jtag, smart0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(1, jtag, smart0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(2, jtag, smart0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(3, jtag, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(4, jtag, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(5, jtag, smart0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(6, mdio, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(7, mdc, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(8, blsp_uart1, NA, NA, smart1, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(9, blsp_uart1, NA, NA, smart1, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(10, blsp_uart1, NA, NA, blsp_i2c0, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(11, blsp_uart1, NA, NA, blsp_i2c0, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(12, blsp_spi0, blsp_i2c1, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(13, blsp_spi0, blsp_i2c1, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(14, blsp_spi0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(15, blsp_spi0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(16, blsp_uart0, led0, smart1, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(17, blsp_uart0, led1, smart1, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(18, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(19, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(20, blsp_i2c0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(21, blsp_i2c0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(22, rgmii, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(23, sdio, rgmii, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(24, sdio, rgmii, i2s_tx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(25, sdio, rgmii, i2s_tx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(26, sdio, rgmii, i2s_tx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(27, sdio, rgmii, i2s_td, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(28, sdio, rgmii, i2s_td, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(29, sdio, rgmii, i2s_td, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(30, sdio, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(31, sdio, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(32, sdio, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(33, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(34, blsp_i2c1, i2s_spdif_in, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA),
PINGROUP(35, blsp_i2c1, i2s_spdif_out, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA),
PINGROUP(36, rmii, led2, led0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(37, rmii, wifi0, wifi1, led1, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(38, rmii, led2, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(39, rmii, pcie, led3, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(40, rmii, wifi0, wifi1, smart2, led4, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(41, rmii, wifi0, wifi1, smart2, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(42, rmii, wifi0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(43, rmii, wifi1, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(44, rmii, blsp_spi1, smart0, led5, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(45, rmii, blsp_spi1, blsp_spi0, smart0, led6, NA, NA, NA, NA,
NA, NA, NA, NA, NA),
PINGROUP(46, rmii, blsp_spi1, smart0, led7, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(47, rmii, blsp_spi1, smart0, led8, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(48, rmii, aud_pin, smart2, led9, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(49, rmii, aud_pin, smart2, led10, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(50, rmii, aud_pin, wifi0, wifi1, led11, NA, NA, NA, NA, NA,
NA, NA, NA, NA),
PINGROUP(51, rmii, aud_pin, wifi0, wifi1, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA),
PINGROUP(52, qpic, mdc, pcie, i2s_tx, NA, NA, NA, tm, wifi0, wifi1, NA,
NA, NA, NA),
PINGROUP(53, qpic, mdio, i2s_tx, prng_rosc, NA, tm, wifi0, wifi1, NA,
NA, NA, NA, NA, NA),
PINGROUP(54, qpic, blsp_spi0, i2s_td, NA, pmu, NA, NA, NA, tm, NA, NA,
NA, NA, NA),
PINGROUP(55, qpic, blsp_spi0, i2s_td, NA, pmu, NA, NA, NA, tm, NA, NA,
NA, NA, NA),
PINGROUP(56, qpic, blsp_spi0, i2s_td, NA, NA, tm, wifi0, wifi1, NA, NA,
NA, NA, NA, NA),
PINGROUP(57, qpic, blsp_spi0, i2s_tx, NA, NA, tm, wifi0, wifi1, NA, NA,
NA, NA, NA, NA),
PINGROUP(58, qpic, led2, blsp_i2c0, smart3, smart1, i2s_rx, NA, NA, tm,
wifi0, wifi1, NA, NA, NA),
PINGROUP(59, qpic, blsp_i2c0, smart3, smart1, i2s_spdif_in, NA, NA, NA,
NA, NA, tm, NA, NA, NA),
PINGROUP(60, qpic, blsp_uart0, smart1, smart3, led0, i2s_tx, i2s_rx,
NA, NA, NA, NA, NA, tm, NA),
PINGROUP(61, qpic, blsp_uart0, smart1, smart3, led1, i2s_tx, i2s_rx,
NA, NA, NA, NA, NA, tm, NA),
PINGROUP(62, qpic, chip_rst, NA, NA, i2s_spdif_out, NA, NA, NA, NA, NA,
tm, NA, NA, NA),
PINGROUP(63, qpic, NA, NA, NA, i2s_td, i2s_rx, i2s_spdif_out,
i2s_spdif_in, NA, NA, NA, NA, tm, NA),
PINGROUP(64, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(65, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(66, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(67, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA),
PINGROUP(68, qpic, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(69, qpic, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(70, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(71, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(72, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(73, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(74, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(75, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(76, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(77, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(78, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(79, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(80, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(81, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(82, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(83, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(84, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(85, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(86, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(87, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(88, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(89, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(90, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(91, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(92, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(93, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(94, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(95, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(96, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(97, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
PINGROUP(98, wifi0, wifi1, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA),
PINGROUP(99, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
};
static const char *ipq4019_get_function_name(struct udevice *dev,
unsigned int selector)
{
return msm_pinctrl_functions[selector].name;
}
static const char *ipq4019_get_pin_name(struct udevice *dev,
unsigned int selector)
{
snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
return pin_name;
}
static unsigned int ipq4019_get_function_mux(unsigned int pin,
unsigned int selector)
{
unsigned int i;
const msm_pin_function *func = ipq4019_pin_functions + pin;
for (i = 0; i < 15; i++)
if ((*func)[i] == selector)
return i;
pr_err("Can't find requested function for pin %u pin\n", pin);
return -EINVAL;
}
static const struct msm_pinctrl_data ipq4019_data = {
.pin_data = {
.pin_count = 100,
.special_pins_start = 100, /* There are no special pins */
},
.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
.get_function_name = ipq4019_get_function_name,
.get_function_mux = ipq4019_get_function_mux,
.get_pin_name = ipq4019_get_pin_name,
};
static const struct udevice_id msm_pinctrl_ids[] = {
{ .compatible = "qcom,ipq4019-pinctrl", .data = (ulong)&ipq4019_data },
{ /* Sentinal */ }
};
U_BOOT_DRIVER(pinctrl_ipq4019) = {
.name = "pinctrl_ipq4019",
.id = UCLASS_NOP,
.of_match = msm_pinctrl_ids,
.ops = &msm_pinctrl_ops,
.bind = msm_pinctrl_bind,
.flags = DM_FLAG_PRE_RELOC,
};
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