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-stm32.c | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/kernel/drivers/i2c/busses/i2c-stm32.c b/kernel/drivers/i2c/busses/i2c-stm32.c
index 667f803..157c64e 100644
--- a/kernel/drivers/i2c/busses/i2c-stm32.c
+++ b/kernel/drivers/i2c/busses/i2c-stm32.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* i2c-stm32.c
*
* Copyright (C) M'boumba Cedric Madianga 2017
* Author: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
- *
- * License terms: GNU General Public License (GPL), version 2
*/
#include "i2c-stm32.h"
@@ -26,8 +25,10 @@
/* Request and configure I2C TX dma channel */
dma->chan_tx = dma_request_chan(dev, "tx");
if (IS_ERR(dma->chan_tx)) {
- dev_dbg(dev, "can't request DMA tx channel\n");
ret = PTR_ERR(dma->chan_tx);
+ if (ret != -ENODEV)
+ ret = dev_err_probe(dev, ret,
+ "can't request DMA tx channel\n");
goto fail_al;
}
@@ -45,8 +46,11 @@
/* Request and configure I2C RX dma channel */
dma->chan_rx = dma_request_chan(dev, "rx");
if (IS_ERR(dma->chan_rx)) {
- dev_err(dev, "can't request DMA rx channel\n");
ret = PTR_ERR(dma->chan_rx);
+ if (ret != -ENODEV)
+ ret = dev_err_probe(dev, ret,
+ "can't request DMA rx channel\n");
+
goto fail_tx;
}
@@ -74,7 +78,6 @@
dma_release_channel(dma->chan_tx);
fail_al:
devm_kfree(dev, dma);
- dev_info(dev, "can't use DMA\n");
return ERR_PTR(ret);
}
--
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