eeprom: at24: add support for 24c2048

PATCH Superseded Adrian Bunk 2 participants 3 messages Feb 14, 2019 – Feb 17, 2019

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Stable branch I2C subsystem host drivers

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Adrian Bunk

author

2019-02-14 15:41 UTC #0 lore raw

PATCH 1/1 eeprom: at24: add support for 24c2048

commit 6c0c5dc33ff42af49243e94842d0ebdb153189ea upstream. commit 37cf28d3b5bca1b532a0b6aac722e7f2788a9294 upstream.

Works with ST M24M02.

Signed-off-by Adrian Bunk <[email protected]>

---

Backport applies and builds against 4.9/4.14. Confirmed working with 4.14.
For 4.19/4.20 please cherry-pick the upstream commits instead.

 Documentation/devicetree/bindings/eeprom/eeprom.txt | 5 +++--
 drivers/misc/eeprom/Kconfig                         | 2 +-
 drivers/misc/eeprom/at24.c                          | 1 +
 3 files changed, 5 insertions(+), 3 deletions(-)

Documentation/devicetree/bindings/eeprom/eeprom.txt +3 -2

index afc04589eadf..3c9a822d576c 100644
@@ -6,7 +6,8 @@ Required properties:
 
 	"atmel,24c00", "atmel,24c01", "atmel,24c02", "atmel,24c04",
 	"atmel,24c08", "atmel,24c16", "atmel,24c32", "atmel,24c64",
-	"atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024"
+	"atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024",
+	"atmel,24c2048"
 
 	"catalyst,24c32"

@@ -23,7 +24,7 @@ Required properties:
 	 device with <type> and manufacturer "atmel" should be used.
 	 Possible types are:
 	 "24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64",
-	 "24c128", "24c256", "24c512", "24c1024", "spd"
+	 "24c128", "24c256", "24c512", "24c1024", "24c2048", "spd"
 
   - reg : the I2C address of the EEPROM

drivers/misc/eeprom/Kconfig +1 -1

index de58762097c4..3f93e4564cab 100644
@@ -12,7 +12,7 @@ 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

drivers/misc/eeprom/at24.c +1 -0

index ded48a0c77ee..59dcd97ee3de 100644
@@ -170,6 +170,7 @@ static const struct i2c_device_id at24_ids[] = {
 	{ "24c256",	AT24_DEVICE_MAGIC(262144 / 8,	AT24_FLAG_ADDR16) },
 	{ "24c512",	AT24_DEVICE_MAGIC(524288 / 8,	AT24_FLAG_ADDR16) },
 	{ "24c1024",	AT24_DEVICE_MAGIC(1048576 / 8,	AT24_FLAG_ADDR16) },
+	{ "24c2048",	AT24_DEVICE_MAGIC(2097152 / 8,	AT24_FLAG_ADDR16) },
 	{ "at24", 0 },
 	{ /* END OF LIST */ }
 };

Signature · 1 line

2.11.0

Greg KH

maintainer

2019-02-14 15:57 UTC #1 lore raw

Quoted 2 lines · Adrian Bunk

commit 6c0c5dc33ff42af49243e94842d0ebdb153189ea upstream. commit 37cf28d3b5bca1b532a0b6aac722e7f2788a9294 upstream.

Please do not merge two different commits together, but backport them individually, it's safer that way over time.

thanks,

greg k-h

Adrian Bunk

author

2019-02-17 11:15 UTC #2 lore raw

Quoted 6 lines · Greg KH

Quoted 2 lines · Adrian Bunk
commit 6c0c5dc33ff42af49243e94842d0ebdb153189ea upstream. commit 37cf28d3b5bca1b532a0b6aac722e7f2788a9294 upstream.
Please do not merge two different commits together, but backport them individually, it's safer that way over time.

Sorry for that, resent as two patches.

Quoted 3 lines

thanks,
greg k-h

cu
Adrian

Signature · 4 lines

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed