From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/drivers/i2c/busses/i2c-efm32.c | 23 +++++------------------
1 files changed, 5 insertions(+), 18 deletions(-)
diff --git a/kernel/drivers/i2c/busses/i2c-efm32.c b/kernel/drivers/i2c/busses/i2c-efm32.c
index 5f2bab8..f6e13ce 100644
--- a/kernel/drivers/i2c/busses/i2c-efm32.c
+++ b/kernel/drivers/i2c/busses/i2c-efm32.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2014 Uwe Kleine-Koenig for Pengutronix
- *
- * 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 published by the
- * Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
@@ -315,9 +312,6 @@
int ret;
u32 clkdiv;
- if (!np)
- return -EINVAL;
-
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
@@ -338,24 +332,17 @@
return ret;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "failed to determine base address\n");
- return -ENODEV;
- }
+ ddata->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+ if (IS_ERR(ddata->base))
+ return PTR_ERR(ddata->base);
if (resource_size(res) < 0x42) {
dev_err(&pdev->dev, "memory resource too small\n");
return -EINVAL;
}
- ddata->base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(ddata->base))
- return PTR_ERR(ddata->base);
-
ret = platform_get_irq(pdev, 0);
if (ret <= 0) {
- dev_err(&pdev->dev, "failed to get irq (%d)\n", ret);
if (!ret)
ret = -EINVAL;
return ret;
@@ -391,7 +378,7 @@
if (!ret) {
dev_dbg(&pdev->dev, "using frequency %u\n", frequency);
} else {
- frequency = 100000;
+ frequency = I2C_MAX_STANDARD_MODE_FREQ;
dev_info(&pdev->dev, "defaulting to 100 kHz\n");
}
ddata->frequency = frequency;
--
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