From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/mfd/tps65218.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 92 insertions(+), 3 deletions(-)
diff --git a/kernel/drivers/mfd/tps65218.c b/kernel/drivers/mfd/tps65218.c
index 8bcdecf..167e9fc 100644
--- a/kernel/drivers/mfd/tps65218.c
+++ b/kernel/drivers/mfd/tps65218.c
@@ -1,7 +1,7 @@
/*
* Driver for TPS65218 Integrated power management chipsets
*
- * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2 as
@@ -48,7 +48,7 @@
/**
* tps65218_reg_write: Write a single tps65218 register.
*
- * @tps65218: Device to write to.
+ * @tps: Device to write to.
* @reg: Register to write to.
* @val: Value to write.
* @level: Password protected level
@@ -79,7 +79,7 @@
/**
* tps65218_update_bits: Modify bits w.r.t mask, val and level.
*
- * @tps65218: Device to write to.
+ * @tps: Device to write to.
* @reg: Register to read-write to.
* @mask: Mask.
* @val: Value to write.
@@ -211,6 +211,83 @@
};
MODULE_DEVICE_TABLE(of, of_tps65218_match_table);
+static int tps65218_voltage_set_strict(struct tps65218 *tps)
+{
+ u32 strict;
+
+ if (of_property_read_u32(tps->dev->of_node,
+ "ti,strict-supply-voltage-supervision",
+ &strict))
+ return 0;
+
+ if (strict != 0 && strict != 1) {
+ dev_err(tps->dev,
+ "Invalid ti,strict-supply-voltage-supervision value\n");
+ return -EINVAL;
+ }
+
+ tps65218_update_bits(tps, TPS65218_REG_CONFIG1,
+ TPS65218_CONFIG1_STRICT,
+ strict ? TPS65218_CONFIG1_STRICT : 0,
+ TPS65218_PROTECT_L1);
+ return 0;
+}
+
+static int tps65218_voltage_set_uv_hyst(struct tps65218 *tps)
+{
+ u32 hyst;
+
+ if (of_property_read_u32(tps->dev->of_node,
+ "ti,under-voltage-hyst-microvolt", &hyst))
+ return 0;
+
+ if (hyst != 400000 && hyst != 200000) {
+ dev_err(tps->dev,
+ "Invalid ti,under-voltage-hyst-microvolt value\n");
+ return -EINVAL;
+ }
+
+ tps65218_update_bits(tps, TPS65218_REG_CONFIG2,
+ TPS65218_CONFIG2_UVLOHYS,
+ hyst == 400000 ? TPS65218_CONFIG2_UVLOHYS : 0,
+ TPS65218_PROTECT_L1);
+ return 0;
+}
+
+static int tps65218_voltage_set_uvlo(struct tps65218 *tps)
+{
+ u32 uvlo;
+ int uvloval;
+
+ if (of_property_read_u32(tps->dev->of_node,
+ "ti,under-voltage-limit-microvolt", &uvlo))
+ return 0;
+
+ switch (uvlo) {
+ case 2750000:
+ uvloval = TPS65218_CONFIG1_UVLO_2750000;
+ break;
+ case 2950000:
+ uvloval = TPS65218_CONFIG1_UVLO_2950000;
+ break;
+ case 3250000:
+ uvloval = TPS65218_CONFIG1_UVLO_3250000;
+ break;
+ case 3350000:
+ uvloval = TPS65218_CONFIG1_UVLO_3350000;
+ break;
+ default:
+ dev_err(tps->dev,
+ "Invalid ti,under-voltage-limit-microvolt value\n");
+ return -EINVAL;
+ }
+
+ tps65218_update_bits(tps, TPS65218_REG_CONFIG1,
+ TPS65218_CONFIG1_UVLO_MASK, uvloval,
+ TPS65218_PROTECT_L1);
+ return 0;
+}
+
static int tps65218_probe(struct i2c_client *client,
const struct i2c_device_id *ids)
{
@@ -249,6 +326,18 @@
tps->rev = chipid & TPS65218_CHIPID_REV_MASK;
+ ret = tps65218_voltage_set_strict(tps);
+ if (ret)
+ return ret;
+
+ ret = tps65218_voltage_set_uvlo(tps);
+ if (ret)
+ return ret;
+
+ ret = tps65218_voltage_set_uv_hyst(tps);
+ if (ret)
+ return ret;
+
ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65218_cells,
ARRAY_SIZE(tps65218_cells), NULL, 0,
regmap_irq_get_domain(tps->irq_data));
--
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