blob: 3aa9096b2b7f2f7a453c03bbfe48a115f144cc4b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
diff -uprN -X linux-2.6.32.3/Documentation/dontdiff linux-2.6.32.3-vanilla/drivers/misc/eeprom/at25.c linux-2.6.32.3/drivers/misc/eeprom/at25.c
--- linux-2.6.32.3-vanilla/drivers/misc/eeprom/at25.c 2010-01-06 17:07:45.000000000 -0600
+++ linux-2.6.32.3/drivers/misc/eeprom/at25.c 2010-10-27 11:05:36.000000000 -0500
@@ -147,6 +147,7 @@ at25_ee_write(struct at25_data *at25, co
unsigned written = 0;
unsigned buf_size;
u8 *bounce;
+ int a8;
if (unlikely(off >= at25->bin.size))
return -EFBIG;
@@ -163,6 +164,11 @@ at25_ee_write(struct at25_data *at25, co
if (!bounce)
return -ENOMEM;
+ if (!strcmp(at25->chip.name, "at25040b"))
+ a8 = 1;
+ else
+ a8 = 0;
+
/* For write, rollover is within the page ... so we write at
* most one page, then manually roll over to the next page.
*/
@@ -183,6 +189,13 @@ at25_ee_write(struct at25_data *at25, co
break;
}
+ if (a8) {
+ if (offset & BIT(8))
+ bounce[0] |= BIT(3);
+ else
+ bounce[0] &= ~BIT(3);
+ }
+
/* 8/16/24-bit address is written MSB first */
switch (at25->addrlen) {
default: /* case 3 */
|
