From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/net/ieee802154/cc2520.c | 13 +++----------
1 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/kernel/drivers/net/ieee802154/cc2520.c b/kernel/drivers/net/ieee802154/cc2520.c
index 0c89d3e..a8369bf 100644
--- a/kernel/drivers/net/ieee802154/cc2520.c
+++ b/kernel/drivers/net/ieee802154/cc2520.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* Driver for TI CC2520 802.15.4 Wireless-PAN Networking controller
*
* Copyright (C) 2014 Varka Bhadram <varkab@cdac.in>
* Md.Jamal Mohiuddin <mjmohiuddin@cdac.in>
* P Sowjanya <sowjanyap@cdac.in>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
*/
#include <linux/kernel.h>
#include <linux/module.h>
@@ -223,7 +218,6 @@
cc2520_cmd_strobe(struct cc2520_private *priv, u8 cmd)
{
int ret;
- u8 status = 0xff;
struct spi_message msg;
struct spi_transfer xfer = {
.len = 0,
@@ -241,8 +235,6 @@
priv->buf[0]);
ret = spi_sync(priv->spi, &msg);
- if (!ret)
- status = priv->buf[0];
dev_vdbg(&priv->spi->dev,
"buf[0] = %02x\n", priv->buf[0]);
mutex_unlock(&priv->buffer_mutex);
@@ -512,6 +504,7 @@
goto err_tx;
if (status & CC2520_STATUS_TX_UNDERFLOW) {
+ rc = -EINVAL;
dev_err(&priv->spi->dev, "cc2520 tx underflow exception\n");
goto err_tx;
}
@@ -977,7 +970,7 @@
if (timeout-- <= 0) {
dev_err(&priv->spi->dev, "oscillator start failed!\n");
- return ret;
+ return -ETIMEDOUT;
}
udelay(1);
} while (!(status & CC2520_STATUS_XOSC32M_STABLE));
--
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