From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M
---
kernel/drivers/mfd/tps6105x.c | 37 ++++++++++++++++++++++++++++++++-----
1 files changed, 32 insertions(+), 5 deletions(-)
diff --git a/kernel/drivers/mfd/tps6105x.c b/kernel/drivers/mfd/tps6105x.c
index 187848c..c906324 100644
--- a/kernel/drivers/mfd/tps6105x.c
+++ b/kernel/drivers/mfd/tps6105x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Core driver for TPS61050/61052 boost converters, used for while LED
* driving, audio power amplification, white LED flash, and generic
@@ -9,8 +10,6 @@
* Written on behalf of Linaro for ST-Ericsson
*
* Author: Linus Walleij <linus.walleij@linaro.org>
- *
- * License terms: GNU General Public License (GPL) version 2
*/
#include <linux/module.h>
@@ -92,6 +91,32 @@
PLATFORM_DEVID_AUTO, cell, 1, NULL, 0, NULL);
}
+static struct tps6105x_platform_data *tps6105x_parse_dt(struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ struct tps6105x_platform_data *pdata;
+ struct device_node *child;
+
+ if (!np)
+ return ERR_PTR(-EINVAL);
+ if (of_get_available_child_count(np) > 1) {
+ dev_err(dev, "cannot support multiple operational modes");
+ return ERR_PTR(-EINVAL);
+ }
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+ pdata->mode = TPS6105X_MODE_SHUTDOWN;
+ for_each_available_child_of_node(np, child) {
+ if (child->name && !of_node_cmp(child->name, "regulator"))
+ pdata->mode = TPS6105X_MODE_VOLTAGE;
+ else if (child->name && !of_node_cmp(child->name, "led"))
+ pdata->mode = TPS6105X_MODE_TORCH;
+ }
+
+ return pdata;
+}
+
static int tps6105x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -100,9 +125,11 @@
int ret;
pdata = dev_get_platdata(&client->dev);
- if (!pdata) {
- dev_err(&client->dev, "missing platform data\n");
- return -ENODEV;
+ if (!pdata)
+ pdata = tps6105x_parse_dt(&client->dev);
+ if (IS_ERR(pdata)) {
+ dev_err(&client->dev, "No platform data or DT found");
+ return PTR_ERR(pdata);
}
tps6105x = devm_kmalloc(&client->dev, sizeof(*tps6105x), GFP_KERNEL);
--
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