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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /drivers/mfd/lp87565.c
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'drivers/mfd/lp87565.c')
-rw-r--r--drivers/mfd/lp87565.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c
new file mode 100644
index 000000000..b78ae79df
--- /dev/null
+++ b/drivers/mfd/lp87565.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Author: Keerthy <j-keerthy@ti.com>
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include <linux/mfd/lp87565.h>
+
+static const struct regmap_config lp87565_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = LP87565_REG_MAX,
+};
+
+static const struct mfd_cell lp87565_cells[] = {
+ { .name = "lp87565-q1-regulator", },
+ { .name = "lp87565-q1-gpio", },
+};
+
+static const struct of_device_id of_lp87565_match_table[] = {
+ { .compatible = "ti,lp87565", },
+ {
+ .compatible = "ti,lp87524-q1",
+ .data = (void *)LP87565_DEVICE_TYPE_LP87524_Q1,
+ },
+ {
+ .compatible = "ti,lp87565-q1",
+ .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1,
+ },
+ {
+ .compatible = "ti,lp87561-q1",
+ .data = (void *)LP87565_DEVICE_TYPE_LP87561_Q1,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, of_lp87565_match_table);
+
+static int lp87565_probe(struct i2c_client *client)
+{
+ struct lp87565 *lp87565;
+ int ret;
+ unsigned int otpid;
+
+ lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL);
+ if (!lp87565)
+ return -ENOMEM;
+
+ lp87565->dev = &client->dev;
+
+ lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config);
+ if (IS_ERR(lp87565->regmap)) {
+ ret = PTR_ERR(lp87565->regmap);
+ dev_err(lp87565->dev,
+ "Failed to initialize register map: %d\n", ret);
+ return ret;
+ }
+
+ lp87565->reset_gpio = devm_gpiod_get_optional(lp87565->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(lp87565->reset_gpio)) {
+ ret = PTR_ERR(lp87565->reset_gpio);
+ if (ret == -EPROBE_DEFER)
+ return ret;
+ }
+
+ if (lp87565->reset_gpio) {
+ gpiod_set_value_cansleep(lp87565->reset_gpio, 1);
+ /* The minimum assertion time is undocumented, just guess */
+ usleep_range(2000, 4000);
+
+ gpiod_set_value_cansleep(lp87565->reset_gpio, 0);
+ /* Min 1.2 ms before first I2C transaction */
+ usleep_range(1500, 3000);
+ }
+
+ ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid);
+ if (ret) {
+ dev_err(lp87565->dev, "Failed to read OTP ID\n");
+ return ret;
+ }
+
+ lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID;
+ lp87565->dev_type = (uintptr_t)i2c_get_match_data(client);
+
+ i2c_set_clientdata(client, lp87565);
+
+ return devm_mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO,
+ lp87565_cells, ARRAY_SIZE(lp87565_cells),
+ NULL, 0, NULL);
+}
+
+static void lp87565_shutdown(struct i2c_client *client)
+{
+ struct lp87565 *lp87565 = i2c_get_clientdata(client);
+
+ gpiod_set_value_cansleep(lp87565->reset_gpio, 1);
+}
+
+static const struct i2c_device_id lp87565_id_table[] = {
+ { "lp87565-q1" },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lp87565_id_table);
+
+static struct i2c_driver lp87565_driver = {
+ .driver = {
+ .name = "lp87565",
+ .of_match_table = of_lp87565_match_table,
+ },
+ .probe = lp87565_probe,
+ .shutdown = lp87565_shutdown,
+ .id_table = lp87565_id_table,
+};
+module_i2c_driver(lp87565_driver);
+
+MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
+MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver");
+MODULE_LICENSE("GPL v2");