Commit c4e47673 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Linus Walleij
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pinctrl: qcom: sm8650-lpass-lpi: add SM8650 LPASS 



Add driver for the pin controller in Low Power Audio SubSystem (LPASS)
of Qualcomm SM8650 SoC.

Notable differences against SM8550 LPASS pin controller:
1. Additional address space for slew rate thus driver uses
   LPI_FLAG_SLEW_RATE_SAME_REG and sets slew rate via different
   register.

2. Two new pin mux functions: qca_swr_clk and qca_swr_data

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231027093615.140656-3-krzysztof.kozlowski@linaro.org


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 2220638d

drivers/pinctrl/qcom/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -124,4 +124,14 @@ config PINCTRL_SM8550_LPASS_LPI 
	  (Low Power Island) found on the Qualcomm Technologies Inc SM8550

	  platform.



config PINCTRL_SM8650_LPASS_LPI

	tristate "Qualcomm Technologies Inc SM8550 LPASS LPI pin controller driver"

	depends on ARM64 || COMPILE_TEST

	depends on PINCTRL_LPASS_LPI

	help

	  This is the pinctrl, pinmux, pinconf and gpiolib driver for the

	  Qualcomm Technologies Inc LPASS (Low Power Audio SubSystem) LPI

	  (Low Power Island) found on the Qualcomm Technologies Inc SM8650

	  platform.



endif

drivers/pinctrl/qcom/Makefile

+1 −0
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@@ -58,5 +58,6 @@ obj-$(CONFIG_PINCTRL_SM8450) += pinctrl-sm8450.o 
obj-$(CONFIG_PINCTRL_SM8450_LPASS_LPI) += pinctrl-sm8450-lpass-lpi.o

obj-$(CONFIG_PINCTRL_SM8550) += pinctrl-sm8550.o

obj-$(CONFIG_PINCTRL_SM8550_LPASS_LPI) += pinctrl-sm8550-lpass-lpi.o

obj-$(CONFIG_PINCTRL_SM8650_LPASS_LPI) += pinctrl-sm8650-lpass-lpi.o

obj-$(CONFIG_PINCTRL_SC8280XP_LPASS_LPI) += pinctrl-sc8280xp-lpass-lpi.o

obj-$(CONFIG_PINCTRL_LPASS_LPI) += pinctrl-lpass-lpi.o

drivers/pinctrl/qcom/pinctrl-sm8650-lpass-lpi.c

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+255 −0
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// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2022-2023 Linaro Ltd.

 */



#include <linux/gpio/driver.h>

#include <linux/module.h>

#include <linux/platform_device.h>



#include "pinctrl-lpass-lpi.h"



enum lpass_lpi_functions {

	LPI_MUX_dmic1_clk,

	LPI_MUX_dmic1_data,

	LPI_MUX_dmic2_clk,

	LPI_MUX_dmic2_data,

	LPI_MUX_dmic3_clk,

	LPI_MUX_dmic3_data,

	LPI_MUX_dmic4_clk,

	LPI_MUX_dmic4_data,

	LPI_MUX_i2s0_clk,

	LPI_MUX_i2s0_data,

	LPI_MUX_i2s0_ws,

	LPI_MUX_i2s1_clk,

	LPI_MUX_i2s1_data,

	LPI_MUX_i2s1_ws,

	LPI_MUX_i2s2_clk,

	LPI_MUX_i2s2_data,

	LPI_MUX_i2s2_ws,

	LPI_MUX_i2s3_clk,

	LPI_MUX_i2s3_data,

	LPI_MUX_i2s3_ws,

	LPI_MUX_i2s4_clk,

	LPI_MUX_i2s4_data,

	LPI_MUX_i2s4_ws,

	LPI_MUX_qca_swr_clk,

	LPI_MUX_qca_swr_data,

	LPI_MUX_slimbus_clk,

	LPI_MUX_slimbus_data,

	LPI_MUX_swr_rx_clk,

	LPI_MUX_swr_rx_data,

	LPI_MUX_swr_tx_clk,

	LPI_MUX_swr_tx_data,

	LPI_MUX_wsa_swr_clk,

	LPI_MUX_wsa_swr_data,

	LPI_MUX_wsa2_swr_clk,

	LPI_MUX_wsa2_swr_data,

	LPI_MUX_ext_mclk1_a,

	LPI_MUX_ext_mclk1_b,

	LPI_MUX_ext_mclk1_c,

	LPI_MUX_ext_mclk1_d,

	LPI_MUX_ext_mclk1_e,

	LPI_MUX_gpio,

	LPI_MUX__,

};



static int gpio0_pins[] = { 0 };

static int gpio1_pins[] = { 1 };

static int gpio2_pins[] = { 2 };

static int gpio3_pins[] = { 3 };

static int gpio4_pins[] = { 4 };

static int gpio5_pins[] = { 5 };

static int gpio6_pins[] = { 6 };

static int gpio7_pins[] = { 7 };

static int gpio8_pins[] = { 8 };

static int gpio9_pins[] = { 9 };

static int gpio10_pins[] = { 10 };

static int gpio11_pins[] = { 11 };

static int gpio12_pins[] = { 12 };

static int gpio13_pins[] = { 13 };

static int gpio14_pins[] = { 14 };

static int gpio15_pins[] = { 15 };

static int gpio16_pins[] = { 16 };

static int gpio17_pins[] = { 17 };

static int gpio18_pins[] = { 18 };

static int gpio19_pins[] = { 19 };

static int gpio20_pins[] = { 20 };

static int gpio21_pins[] = { 21 };

static int gpio22_pins[] = { 22 };



static const struct pinctrl_pin_desc sm8650_lpi_pins[] = {

	PINCTRL_PIN(0, "gpio0"),

	PINCTRL_PIN(1, "gpio1"),

	PINCTRL_PIN(2, "gpio2"),

	PINCTRL_PIN(3, "gpio3"),

	PINCTRL_PIN(4, "gpio4"),

	PINCTRL_PIN(5, "gpio5"),

	PINCTRL_PIN(6, "gpio6"),

	PINCTRL_PIN(7, "gpio7"),

	PINCTRL_PIN(8, "gpio8"),

	PINCTRL_PIN(9, "gpio9"),

	PINCTRL_PIN(10, "gpio10"),

	PINCTRL_PIN(11, "gpio11"),

	PINCTRL_PIN(12, "gpio12"),

	PINCTRL_PIN(13, "gpio13"),

	PINCTRL_PIN(14, "gpio14"),

	PINCTRL_PIN(15, "gpio15"),

	PINCTRL_PIN(16, "gpio16"),

	PINCTRL_PIN(17, "gpio17"),

	PINCTRL_PIN(18, "gpio18"),

	PINCTRL_PIN(19, "gpio19"),

	PINCTRL_PIN(20, "gpio20"),

	PINCTRL_PIN(21, "gpio21"),

	PINCTRL_PIN(22, "gpio22"),

};



static const char * const gpio_groups[] = {

	"gpio0", "gpio1", "gpio2", "gpio3", "gpio4", "gpio5", "gpio6", "gpio7",

	"gpio8", "gpio9", "gpio10", "gpio11", "gpio12", "gpio13", "gpio14",

	"gpio15", "gpio16", "gpio17", "gpio18", "gpio19", "gpio20", "gpio21",

	"gpio22",

};



static const char * const dmic1_clk_groups[] = { "gpio6" };

static const char * const dmic1_data_groups[] = { "gpio7" };

static const char * const dmic2_clk_groups[] = { "gpio8" };

static const char * const dmic2_data_groups[] = { "gpio9" };

static const char * const dmic3_clk_groups[] = { "gpio12" };

static const char * const dmic3_data_groups[] = { "gpio13" };

static const char * const dmic4_clk_groups[] = { "gpio17" };

static const char * const dmic4_data_groups[] = { "gpio18" };

static const char * const i2s0_clk_groups[] = { "gpio0" };

static const char * const i2s0_ws_groups[] = { "gpio1" };

static const char * const i2s0_data_groups[] = { "gpio2", "gpio3", "gpio4", "gpio5" };

static const char * const i2s1_clk_groups[] = { "gpio6" };

static const char * const i2s1_ws_groups[] = { "gpio7" };

static const char * const i2s1_data_groups[] = { "gpio8", "gpio9" };

static const char * const i2s2_clk_groups[] = { "gpio10" };

static const char * const i2s2_ws_groups[] = { "gpio11" };

static const char * const i2s2_data_groups[] = { "gpio15", "gpio16" };

static const char * const i2s3_clk_groups[] = { "gpio12" };

static const char * const i2s3_ws_groups[] = { "gpio13" };

static const char * const i2s3_data_groups[] = { "gpio17", "gpio18" };

static const char * const i2s4_clk_groups[] = { "gpio19"};

static const char * const i2s4_ws_groups[] = { "gpio20"};

static const char * const i2s4_data_groups[] = { "gpio21", "gpio22"};

static const char * const qca_swr_clk_groups[] = { "gpio19" };

static const char * const qca_swr_data_groups[] = { "gpio20" };

static const char * const slimbus_clk_groups[] = { "gpio19"};

static const char * const slimbus_data_groups[] = { "gpio20"};

static const char * const swr_tx_clk_groups[] = { "gpio0" };

static const char * const swr_tx_data_groups[] = { "gpio1", "gpio2", "gpio14" };

static const char * const swr_rx_clk_groups[] = { "gpio3" };

static const char * const swr_rx_data_groups[] = { "gpio4", "gpio5", "gpio15" };

static const char * const wsa_swr_clk_groups[] = { "gpio10" };

static const char * const wsa_swr_data_groups[] = { "gpio11" };

static const char * const wsa2_swr_clk_groups[] = { "gpio15" };

static const char * const wsa2_swr_data_groups[] = { "gpio16" };

static const char * const ext_mclk1_c_groups[] = { "gpio5" };

static const char * const ext_mclk1_b_groups[] = { "gpio9" };

static const char * const ext_mclk1_a_groups[] = { "gpio13" };

static const char * const ext_mclk1_d_groups[] = { "gpio14" };

static const char * const ext_mclk1_e_groups[] = { "gpio22" };



static const struct lpi_pingroup sm8650_groups[] = {

	LPI_PINGROUP(0, 11, swr_tx_clk, i2s0_clk, _, _),

	LPI_PINGROUP(1, 11, swr_tx_data, i2s0_ws, _, _),

	LPI_PINGROUP(2, 11, swr_tx_data, i2s0_data, _, _),

	LPI_PINGROUP(3, 11, swr_rx_clk, i2s0_data, _, _),

	LPI_PINGROUP(4, 11, swr_rx_data, i2s0_data, _, _),

	LPI_PINGROUP(5, 11, swr_rx_data, ext_mclk1_c, i2s0_data, _),

	LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _,  _),

	LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _),

	LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _),

	LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, ext_mclk1_b, _),

	LPI_PINGROUP(10, 11, i2s2_clk, wsa_swr_clk, _, _),

	LPI_PINGROUP(11, 11, i2s2_ws, wsa_swr_data, _, _),

	LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s3_clk, _, _),

	LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s3_ws, ext_mclk1_a, _),

	LPI_PINGROUP(14, 11, swr_tx_data, ext_mclk1_d, _, _),

	LPI_PINGROUP(15, 11, i2s2_data, wsa2_swr_clk, _, _),

	LPI_PINGROUP(16, 11, i2s2_data, wsa2_swr_data, _, _),

	LPI_PINGROUP(17, LPI_NO_SLEW, dmic4_clk, i2s3_data, _, _),

	LPI_PINGROUP(18, LPI_NO_SLEW, dmic4_data, i2s3_data, _, _),

	LPI_PINGROUP(19, 11, i2s4_clk, slimbus_clk, qca_swr_clk, _),

	LPI_PINGROUP(20, 11, i2s4_ws, slimbus_data, qca_swr_data, _),

	LPI_PINGROUP(21, LPI_NO_SLEW, i2s4_data, _, _, _),

	LPI_PINGROUP(22, LPI_NO_SLEW, i2s4_data, ext_mclk1_e, _, _),

};



static const struct lpi_function sm8650_functions[] = {

	LPI_FUNCTION(gpio),

	LPI_FUNCTION(dmic1_clk),

	LPI_FUNCTION(dmic1_data),

	LPI_FUNCTION(dmic2_clk),

	LPI_FUNCTION(dmic2_data),

	LPI_FUNCTION(dmic3_clk),

	LPI_FUNCTION(dmic3_data),

	LPI_FUNCTION(dmic4_clk),

	LPI_FUNCTION(dmic4_data),

	LPI_FUNCTION(i2s0_clk),

	LPI_FUNCTION(i2s0_data),

	LPI_FUNCTION(i2s0_ws),

	LPI_FUNCTION(i2s1_clk),

	LPI_FUNCTION(i2s1_data),

	LPI_FUNCTION(i2s1_ws),

	LPI_FUNCTION(i2s2_clk),

	LPI_FUNCTION(i2s2_data),

	LPI_FUNCTION(i2s2_ws),

	LPI_FUNCTION(i2s3_clk),

	LPI_FUNCTION(i2s3_data),

	LPI_FUNCTION(i2s3_ws),

	LPI_FUNCTION(i2s4_clk),

	LPI_FUNCTION(i2s4_data),

	LPI_FUNCTION(i2s4_ws),

	LPI_FUNCTION(qca_swr_clk),

	LPI_FUNCTION(qca_swr_data),

	LPI_FUNCTION(slimbus_clk),

	LPI_FUNCTION(slimbus_data),

	LPI_FUNCTION(swr_rx_clk),

	LPI_FUNCTION(swr_rx_data),

	LPI_FUNCTION(swr_tx_clk),

	LPI_FUNCTION(swr_tx_data),

	LPI_FUNCTION(wsa_swr_clk),

	LPI_FUNCTION(wsa_swr_data),

	LPI_FUNCTION(wsa2_swr_clk),

	LPI_FUNCTION(wsa2_swr_data),

	LPI_FUNCTION(ext_mclk1_a),

	LPI_FUNCTION(ext_mclk1_b),

	LPI_FUNCTION(ext_mclk1_c),

	LPI_FUNCTION(ext_mclk1_d),

	LPI_FUNCTION(ext_mclk1_e),

};



static const struct lpi_pinctrl_variant_data sm8650_lpi_data = {

	.pins = sm8650_lpi_pins,

	.npins = ARRAY_SIZE(sm8650_lpi_pins),

	.groups = sm8650_groups,

	.ngroups = ARRAY_SIZE(sm8650_groups),

	.functions = sm8650_functions,

	.nfunctions = ARRAY_SIZE(sm8650_functions),

	.flags = LPI_FLAG_SLEW_RATE_SAME_REG,

};



static const struct of_device_id lpi_pinctrl_of_match[] = {

	{

	       .compatible = "qcom,sm8650-lpass-lpi-pinctrl",

	       .data = &sm8650_lpi_data,

	},

	{ }

};

MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);



static struct platform_driver lpi_pinctrl_driver = {

	.driver = {

		   .name = "qcom-sm8650-lpass-lpi-pinctrl",

		   .of_match_table = lpi_pinctrl_of_match,

	},

	.probe = lpi_pinctrl_probe,

	.remove_new = lpi_pinctrl_remove,

};



module_platform_driver(lpi_pinctrl_driver);

MODULE_DESCRIPTION("Qualcomm SM8650 LPI GPIO pin control driver");

MODULE_LICENSE("GPL");