diff options
Diffstat (limited to 'drivers/pinctrl/qcom/pinctrl-sdm660-lpass-lpi.c')
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-sdm660-lpass-lpi.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-sdm660-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-sdm660-lpass-lpi.c new file mode 100644 index 000000000000..d93af5f0e8d3 --- /dev/null +++ b/drivers/pinctrl/qcom/pinctrl-sdm660-lpass-lpi.c @@ -0,0 +1,160 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * This driver is solely based on the limited information in downstream code. + * Any verification with schematics would be greatly appreciated. + * + * Copyright (c) 2023, Richard Acayan. All rights reserved. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pinctrl/pinctrl.h> + +#include "pinctrl-lpass-lpi.h" + +enum lpass_lpi_functions { + LPI_MUX_comp_rx, + LPI_MUX_dmic1_clk, + LPI_MUX_dmic1_data, + LPI_MUX_dmic2_clk, + LPI_MUX_dmic2_data, + LPI_MUX_mclk0, + LPI_MUX_pdm_tx, + LPI_MUX_pdm_clk, + LPI_MUX_pdm_rx, + LPI_MUX_pdm_sync, + + LPI_MUX_gpio, + LPI_MUX__, +}; + +static const struct pinctrl_pin_desc sdm660_lpi_pinctrl_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"), + PINCTRL_PIN(23, "gpio23"), + PINCTRL_PIN(24, "gpio24"), + PINCTRL_PIN(25, "gpio25"), + PINCTRL_PIN(26, "gpio26"), + PINCTRL_PIN(27, "gpio27"), + PINCTRL_PIN(28, "gpio28"), + PINCTRL_PIN(29, "gpio29"), + PINCTRL_PIN(30, "gpio30"), + PINCTRL_PIN(31, "gpio31"), +}; + +static const char * const comp_rx_groups[] = { "gpio22", "gpio24" }; +static const char * const dmic1_clk_groups[] = { "gpio26" }; +static const char * const dmic1_data_groups[] = { "gpio27" }; +static const char * const dmic2_clk_groups[] = { "gpio28" }; +static const char * const dmic2_data_groups[] = { "gpio29" }; +static const char * const mclk0_groups[] = { "gpio18" }; +static const char * const pdm_tx_groups[] = { "gpio20" }; +static const char * const pdm_clk_groups[] = { "gpio18" }; +static const char * const pdm_rx_groups[] = { "gpio21", "gpio23", "gpio25" }; +static const char * const pdm_sync_groups[] = { "gpio19" }; + +const struct lpi_pingroup sdm660_lpi_pinctrl_groups[] = { + LPI_PINGROUP_OFFSET(0, LPI_NO_SLEW, _, _, _, _, 0x0000), + LPI_PINGROUP_OFFSET(1, LPI_NO_SLEW, _, _, _, _, 0x1000), + LPI_PINGROUP_OFFSET(2, LPI_NO_SLEW, _, _, _, _, 0x2000), + LPI_PINGROUP_OFFSET(3, LPI_NO_SLEW, _, _, _, _, 0x2010), + LPI_PINGROUP_OFFSET(4, LPI_NO_SLEW, _, _, _, _, 0x3000), + LPI_PINGROUP_OFFSET(5, LPI_NO_SLEW, _, _, _, _, 0x3010), + LPI_PINGROUP_OFFSET(6, LPI_NO_SLEW, _, _, _, _, 0x4000), + LPI_PINGROUP_OFFSET(7, LPI_NO_SLEW, _, _, _, _, 0x4010), + LPI_PINGROUP_OFFSET(8, LPI_NO_SLEW, _, _, _, _, 0x5000), + LPI_PINGROUP_OFFSET(9, LPI_NO_SLEW, _, _, _, _, 0x5010), + LPI_PINGROUP_OFFSET(10, LPI_NO_SLEW, _, _, _, _, 0x5020), + LPI_PINGROUP_OFFSET(11, LPI_NO_SLEW, _, _, _, _, 0x5030), + LPI_PINGROUP_OFFSET(12, LPI_NO_SLEW, _, _, _, _, 0x6000), + LPI_PINGROUP_OFFSET(13, LPI_NO_SLEW, _, _, _, _, 0x6010), + LPI_PINGROUP_OFFSET(14, LPI_NO_SLEW, _, _, _, _, 0x7000), + LPI_PINGROUP_OFFSET(15, LPI_NO_SLEW, _, _, _, _, 0x7010), + LPI_PINGROUP_OFFSET(16, LPI_NO_SLEW, _, _, _, _, 0x5040), + LPI_PINGROUP_OFFSET(17, LPI_NO_SLEW, _, _, _, _, 0x5050), + + LPI_PINGROUP_OFFSET(18, LPI_NO_SLEW, pdm_clk, mclk0, _, _, 0x8000), + LPI_PINGROUP_OFFSET(19, LPI_NO_SLEW, pdm_sync, _, _, _, 0x8010), + LPI_PINGROUP_OFFSET(20, LPI_NO_SLEW, pdm_tx, _, _, _, 0x8020), + LPI_PINGROUP_OFFSET(21, LPI_NO_SLEW, pdm_rx, _, _, _, 0x8030), + LPI_PINGROUP_OFFSET(22, LPI_NO_SLEW, comp_rx, _, _, _, 0x8040), + LPI_PINGROUP_OFFSET(23, LPI_NO_SLEW, pdm_rx, _, _, _, 0x8050), + LPI_PINGROUP_OFFSET(24, LPI_NO_SLEW, comp_rx, _, _, _, 0x8060), + LPI_PINGROUP_OFFSET(25, LPI_NO_SLEW, pdm_rx, _, _, _, 0x8070), + LPI_PINGROUP_OFFSET(26, LPI_NO_SLEW, dmic1_clk, _, _, _, 0x9000), + LPI_PINGROUP_OFFSET(27, LPI_NO_SLEW, dmic1_data, _, _, _, 0x9010), + LPI_PINGROUP_OFFSET(28, LPI_NO_SLEW, dmic2_clk, _, _, _, 0xa000), + LPI_PINGROUP_OFFSET(29, LPI_NO_SLEW, dmic2_data, _, _, _, 0xa010), + + LPI_PINGROUP_OFFSET(30, LPI_NO_SLEW, _, _, _, _, 0xb000), + LPI_PINGROUP_OFFSET(31, LPI_NO_SLEW, _, _, _, _, 0xb010), +}; + +const struct lpi_function sdm660_lpi_pinctrl_functions[] = { + LPI_FUNCTION(comp_rx), + LPI_FUNCTION(dmic1_clk), + LPI_FUNCTION(dmic1_data), + LPI_FUNCTION(dmic2_clk), + LPI_FUNCTION(dmic2_data), + LPI_FUNCTION(mclk0), + LPI_FUNCTION(pdm_tx), + LPI_FUNCTION(pdm_clk), + LPI_FUNCTION(pdm_rx), + LPI_FUNCTION(pdm_sync), +}; + +static const struct lpi_pinctrl_variant_data sdm660_lpi_pinctrl_data = { + .pins = sdm660_lpi_pinctrl_pins, + .npins = ARRAY_SIZE(sdm660_lpi_pinctrl_pins), + .groups = sdm660_lpi_pinctrl_groups, + .ngroups = ARRAY_SIZE(sdm660_lpi_pinctrl_groups), + .functions = sdm660_lpi_pinctrl_functions, + .nfunctions = ARRAY_SIZE(sdm660_lpi_pinctrl_functions), + .flags = LPI_FLAG_SLEW_RATE_SAME_REG | LPI_FLAG_USE_PREDEFINED_PIN_OFFSET +}; + +static const struct of_device_id sdm660_lpi_pinctrl_of_match[] = { + { + .compatible = "qcom,sdm660-lpass-lpi-pinctrl", + .data = &sdm660_lpi_pinctrl_data, + }, + { } +}; +MODULE_DEVICE_TABLE(of, sdm660_lpi_pinctrl_of_match); + +static struct platform_driver sdm660_lpi_pinctrl_driver = { + .driver = { + .name = "qcom-sdm660-lpass-lpi-pinctrl", + .of_match_table = sdm660_lpi_pinctrl_of_match, + }, + .probe = lpi_pinctrl_probe, + .remove = lpi_pinctrl_remove, +}; +module_platform_driver(sdm660_lpi_pinctrl_driver); + +MODULE_AUTHOR("Richard Acayan <mailingradian@gmail.com>"); +MODULE_DESCRIPTION("QTI SDM660 LPI GPIO pin control driver"); +MODULE_LICENSE("GPL"); |