eeprom: at24: add support for 24c2048

Works with ST M24M02.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index fe7a1d2..a846fae 100644 (file)
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -13,7 +13,7 @@ config EEPROM_AT24
          ones like at24c64, 24lc02 or fm24c04:
 
             24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
-            24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
+            24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024, 24c2048
 
          Unless you like data loss puzzles, always be sure that any chip
          you configure as a 24c32 (32 kbit) or larger is NOT really a

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 636ed71..ddfcf4a 100644 (file)
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -156,6 +156,7 @@ AT24_CHIP_DATA(at24_data_24c128, 131072 / 8, AT24_FLAG_ADDR16);
 AT24_CHIP_DATA(at24_data_24c256, 262144 / 8, AT24_FLAG_ADDR16);
 AT24_CHIP_DATA(at24_data_24c512, 524288 / 8, AT24_FLAG_ADDR16);
 AT24_CHIP_DATA(at24_data_24c1024, 1048576 / 8, AT24_FLAG_ADDR16);
+AT24_CHIP_DATA(at24_data_24c2048, 2097152 / 8, AT24_FLAG_ADDR16);
 /* identical to 24c08 ? */
 AT24_CHIP_DATA(at24_data_INT3499, 8192 / 8, 0);
 
@@ -182,6 +183,7 @@ static const struct i2c_device_id at24_ids[] = {
        { "24c256",     (kernel_ulong_t)&at24_data_24c256 },
        { "24c512",     (kernel_ulong_t)&at24_data_24c512 },
        { "24c1024",    (kernel_ulong_t)&at24_data_24c1024 },
+       { "24c2048",    (kernel_ulong_t)&at24_data_24c2048 },
        { "at24",       0 },
        { /* END OF LIST */ }
 };
@@ -210,6 +212,7 @@ static const struct of_device_id at24_of_match[] = {
        { .compatible = "atmel,24c256",         .data = &at24_data_24c256 },
        { .compatible = "atmel,24c512",         .data = &at24_data_24c512 },
        { .compatible = "atmel,24c1024",        .data = &at24_data_24c1024 },
+       { .compatible = "atmel,24c2048",        .data = &at24_data_24c2048 },
        { /* END OF LIST */ },
 };
 MODULE_DEVICE_TABLE(of, at24_of_match);