[PATCH v3 5/5] pinctrl: qcom: Add SC7280 lpass pin configuration

Srinivasa Rao Mandadapu
2021-11-29T10:01:48Z

Add pin control support for SC7280 LPASS LPI.

Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Co-developed-by: Venkata Prasad Potturu <potturu@codeaurora.org>
Signed-off-by: Venkata Prasad Potturu <potturu@codeaurora.org>
---
drivers/pinctrl/qcom/Makefile | 1 +
drivers/pinctrl/qcom/pinctrl-lpass-lpi.h | 1 +
drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c | 127 ++++++++++++++++++++++++
3 files changed, 129 insertions(+)
create mode 100644 drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c

diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index 74568cf..e07be79 100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -38,3 +38,4 @@ obj-$(CONFIG_PINCTRL_SM8250) += pinctrl-sm8250.o
obj-$(CONFIG_PINCTRL_SM8350) += pinctrl-sm8350.o
obj-$(CONFIG_PINCTRL_LPASS_LPI) += pinctrl-lpass-lpi.o
obj-$(CONFIG_PINCTRL_LPASS_LPI) += pinctrl-sm8250-lpass-lpi.o
+obj-$(CONFIG_PINCTRL_LPASS_LPI) += pinctrl-sc7280-lpass-lpi.o
diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
index b0afb40..1b91585 100644
--- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
+++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
@@ -131,6 +131,7 @@ static const unsigned int gpio10_pins[] = { 10 };
static const unsigned int gpio11_pins[] = { 11 };
static const unsigned int gpio12_pins[] = { 12 };
static const unsigned int gpio13_pins[] = { 13 };
+static const unsigned int gpio14_pins[] = { 14 };

int lpi_pinctrl_probe(struct platform_device *pdev);
int lpi_pinctrl_remove(struct platform_device *pdev);
diff --git a/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
new file mode 100644
index 0000000..38b2056
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ * ALSA SoC platform-machine driver for QTi LPASS
+ */
+
+#include <linux/clk.h>
+#include <linux/gpio/driver.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "pinctrl-lpass-lpi.h"
+
+/* sc7280 variant specific data */
+static const struct pinctrl_pin_desc sc7280_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"),
+};
+
+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" };
+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 i2s2_clk_groups[] = { "gpio10" };
+static const char * const i2s2_ws_groups[] = { "gpio11" };
+static const char * const dmic3_clk_groups[] = { "gpio12" };
+static const char * const dmic3_data_groups[] = { "gpio13" };
+static const char * const qua_mi2s_sclk_groups[] = { "gpio0" };
+static const char * const qua_mi2s_ws_groups[] = { "gpio1" };
+static const char * const qua_mi2s_data_groups[] = { "gpio2", "gpio3", "gpio4" };
+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 wsa_swr_clk_groups[] = { "gpio10" };
+static const char * const wsa_swr_data_groups[] = { "gpio11" };
+static const char * const i2s2_data_groups[] = { "gpio12", "gpio13" };
+
+static const struct lpi_pingroup sc7280_groups[] = {
+ LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _),
+ LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _),
+ LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _),
+ LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _),
+ LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _),
+ LPI_PINGROUP(5, 12, swr_rx_data, _, _, _),
+ LPI_PINGROUP(6, NO_SLEW, dmic1_clk, i2s1_clk, _, _),
+ LPI_PINGROUP(7, NO_SLEW, dmic1_data, i2s1_ws, _, _),
+ LPI_PINGROUP(8, NO_SLEW, dmic2_clk, i2s1_data, _, _),
+ LPI_PINGROUP(9, NO_SLEW, dmic2_data, i2s1_data, _, _),
+ LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _),
+ LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _),
+ LPI_PINGROUP(12, NO_SLEW, dmic3_clk, i2s2_data, _, _),
+ LPI_PINGROUP(13, NO_SLEW, dmic3_data, i2s2_data, _, _),
+ LPI_PINGROUP(14, 6, swr_tx_data, _, _, _),
+};
+
+static const struct lpi_function sc7280_functions[] = {
+ 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(i2s1_clk),
+ LPI_FUNCTION(i2s1_data),
+ LPI_FUNCTION(i2s1_ws),
+ LPI_FUNCTION(i2s2_clk),
+ LPI_FUNCTION(i2s2_data),
+ LPI_FUNCTION(i2s2_ws),
+ LPI_FUNCTION(qua_mi2s_data),
+ LPI_FUNCTION(qua_mi2s_sclk),
+ LPI_FUNCTION(qua_mi2s_ws),
+ 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),
+};
+
+static const struct lpi_pinctrl_variant_data sc7280_lpi_data = {
+ .pins = sc7280_lpi_pins,
+ .npins = ARRAY_SIZE(sc7280_lpi_pins),
+ .groups = sc7280_groups,
+ .ngroups = ARRAY_SIZE(sc7280_groups),
+ .functions = sc7280_functions,
+ .nfunctions = ARRAY_SIZE(sc7280_functions),
+};
+
+static const struct of_device_id lpi_pinctrl_of_match[] = {
+ {
+ .compatible = "qcom,sc7280-lpass-lpi-pinctrl",
+ .data = &sc7280_lpi_data,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
+
+static struct platform_driver lpi_pinctrl_driver = {
+ .driver = {
+ .name = "qcom-sc7280-lpass-lpi-pinctrl",
+ .of_match_table = lpi_pinctrl_of_match,
+ },
+ .probe = lpi_pinctrl_probe,
+ .remove = lpi_pinctrl_remove,
+};
+
+module_platform_driver(lpi_pinctrl_driver);
+MODULE_DESCRIPTION("QTI LPI GPIO pin control driver");
+MODULE_LICENSE("GPL");
+