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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/rt5033.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/rt5033.c')
-rw-r--r--drivers/mfd/rt5033.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/mfd/rt5033.c b/drivers/mfd/rt5033.c
new file mode 100644
index 000000000..072fd4447
--- /dev/null
+++ b/drivers/mfd/rt5033.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * MFD core driver for the Richtek RT5033.
+ *
+ * RT5033 comprises multiple sub-devices switcing charger, fuel gauge,
+ * flash LED, current source, LDO and BUCK regulators.
+ *
+ * Copyright (C) 2014 Samsung Electronics, Co., Ltd.
+ * Author: Beomho Seo <beomho.seo@samsung.com>
+ */
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rt5033.h>
+#include <linux/mfd/rt5033-private.h>
+
+static const struct regmap_irq rt5033_irqs[] = {
+ { .mask = RT5033_PMIC_IRQ_BUCKOCP, },
+ { .mask = RT5033_PMIC_IRQ_BUCKLV, },
+ { .mask = RT5033_PMIC_IRQ_SAFELDOLV, },
+ { .mask = RT5033_PMIC_IRQ_LDOLV, },
+ { .mask = RT5033_PMIC_IRQ_OT, },
+ { .mask = RT5033_PMIC_IRQ_VDDA_UV, },
+};
+
+static const struct regmap_irq_chip rt5033_irq_chip = {
+ .name = "rt5033",
+ .status_base = RT5033_REG_PMIC_IRQ_STAT,
+ .unmask_base = RT5033_REG_PMIC_IRQ_CTRL,
+ .num_regs = 1,
+ .irqs = rt5033_irqs,
+ .num_irqs = ARRAY_SIZE(rt5033_irqs),
+};
+
+static const struct mfd_cell rt5033_devs[] = {
+ { .name = "rt5033-regulator", },
+ {
+ .name = "rt5033-charger",
+ .of_compatible = "richtek,rt5033-charger",
+ }, {
+ .name = "rt5033-led",
+ .of_compatible = "richtek,rt5033-led",
+ },
+};
+
+static const struct regmap_config rt5033_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = RT5033_REG_END,
+};
+
+static int rt5033_i2c_probe(struct i2c_client *i2c)
+{
+ struct rt5033_dev *rt5033;
+ unsigned int dev_id, chip_rev;
+ int ret;
+
+ rt5033 = devm_kzalloc(&i2c->dev, sizeof(*rt5033), GFP_KERNEL);
+ if (!rt5033)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, rt5033);
+ rt5033->dev = &i2c->dev;
+ rt5033->irq = i2c->irq;
+ rt5033->wakeup = true;
+
+ rt5033->regmap = devm_regmap_init_i2c(i2c, &rt5033_regmap_config);
+ if (IS_ERR(rt5033->regmap)) {
+ dev_err(&i2c->dev, "Failed to allocate register map.\n");
+ return PTR_ERR(rt5033->regmap);
+ }
+
+ ret = regmap_read(rt5033->regmap, RT5033_REG_DEVICE_ID, &dev_id);
+ if (ret) {
+ dev_err(&i2c->dev, "Device not found\n");
+ return -ENODEV;
+ }
+ chip_rev = dev_id & RT5033_CHIP_REV_MASK;
+ dev_info(&i2c->dev, "Device found (rev. %d)\n", chip_rev);
+
+ ret = devm_regmap_add_irq_chip(rt5033->dev, rt5033->regmap,
+ rt5033->irq, IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ 0, &rt5033_irq_chip, &rt5033->irq_data);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",
+ rt5033->irq, ret);
+ return ret;
+ }
+
+ ret = devm_mfd_add_devices(rt5033->dev, -1, rt5033_devs,
+ ARRAY_SIZE(rt5033_devs), NULL, 0,
+ regmap_irq_get_domain(rt5033->irq_data));
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to add RT5033 child devices.\n");
+ return ret;
+ }
+
+ if (rt5033->wakeup) {
+ ret = devm_device_init_wakeup(rt5033->dev);
+ if (ret)
+ return dev_err_probe(rt5033->dev, ret, "Failed to init wakeup\n");
+ }
+
+ return 0;
+}
+
+static const struct i2c_device_id rt5033_i2c_id[] = {
+ { "rt5033", },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, rt5033_i2c_id);
+
+static const struct of_device_id rt5033_dt_match[] = {
+ { .compatible = "richtek,rt5033", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, rt5033_dt_match);
+
+static struct i2c_driver rt5033_driver = {
+ .driver = {
+ .name = "rt5033",
+ .of_match_table = rt5033_dt_match,
+ },
+ .probe = rt5033_i2c_probe,
+ .id_table = rt5033_i2c_id,
+};
+module_i2c_driver(rt5033_driver);
+
+MODULE_DESCRIPTION("Richtek RT5033 multi-function core driver");
+MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
+MODULE_LICENSE("GPL");