From e636c8d336489bf3eed5878299e6cc045bbad077 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:17:29 +0000
Subject: [PATCH] debug lk
---
kernel/drivers/misc/eeprom/at25.c | 32 +++++++++-----------------------
1 files changed, 9 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/misc/eeprom/at25.c b/kernel/drivers/misc/eeprom/at25.c
index 8dd5c61..3b7d8b7 100644
--- a/kernel/drivers/misc/eeprom/at25.c
+++ b/kernel/drivers/misc/eeprom/at25.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* at25.c -- support most SPI EEPROMs, such as Atmel AT25 models
*
* Copyright (C) 2006 David Brownell
- *
- * 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>
@@ -94,10 +90,10 @@
switch (at25->addrlen) {
default: /* case 3 */
*cp++ = offset >> 16;
- /* fall through */
+ fallthrough;
case 2:
*cp++ = offset >> 8;
- /* fall through */
+ fallthrough;
case 1:
case 0: /* can't happen: for better codegen */
*cp++ = offset >> 0;
@@ -182,10 +178,10 @@
switch (at25->addrlen) {
default: /* case 3 */
*cp++ = offset >> 16;
- /* fall through */
+ fallthrough;
case 2:
*cp++ = offset >> 8;
- /* fall through */
+ fallthrough;
case 1:
case 0: /* can't happen: for better codegen */
*cp++ = offset >> 0;
@@ -265,7 +261,7 @@
if (device_property_read_u32(dev, "pagesize", &val) == 0 ||
device_property_read_u32(dev, "at25,page-size", &val) == 0) {
- chip->page_size = (u16)val;
+ chip->page_size = val;
} else {
dev_err(dev, "Error: missing \"pagesize\" property\n");
return -ENODEV;
@@ -282,7 +278,7 @@
switch (val) {
case 9:
chip->flags |= EE_INSTR_BIT3_IS_ADDR;
- /* fall through */
+ fallthrough;
case 8:
chip->flags |= EE_ADDR1;
break;
@@ -352,6 +348,7 @@
spi_set_drvdata(spi, at25);
at25->addrlen = addrlen;
+ at25->nvmem_config.type = NVMEM_TYPE_EEPROM;
at25->nvmem_config.name = dev_name(&spi->dev);
at25->nvmem_config.dev = &spi->dev;
at25->nvmem_config.read_only = chip.flags & EE_READONLY;
@@ -366,7 +363,7 @@
at25->nvmem_config.word_size = 1;
at25->nvmem_config.size = chip.byte_len;
- at25->nvmem = nvmem_register(&at25->nvmem_config);
+ at25->nvmem = devm_nvmem_register(&spi->dev, &at25->nvmem_config);
if (IS_ERR(at25->nvmem))
return PTR_ERR(at25->nvmem);
@@ -376,16 +373,6 @@
at25->chip.name,
(chip.flags & EE_READONLY) ? " (readonly)" : "",
at25->chip.page_size);
- return 0;
-}
-
-static int at25_remove(struct spi_device *spi)
-{
- struct at25_data *at25;
-
- at25 = spi_get_drvdata(spi);
- nvmem_unregister(at25->nvmem);
-
return 0;
}
@@ -403,7 +390,6 @@
.of_match_table = at25_of_match,
},
.probe = at25_probe,
- .remove = at25_remove,
};
module_spi_driver(at25_driver);
--
Gitblit v1.6.2