From: Adrian Bunk <bunk@kernel.org>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Bartosz Golaszewski <brgl@bgdev.pl>,
linux-i2c@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH v3] eeprom: at24: Add 24c2048
Date: Wed, 31 Oct 2018 22:49:27 +0200 [thread overview]
Message-ID: <20181031204927.3801-1-bunk@kernel.org> (raw)
Works with an ST M24M02.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
---
Documentation/devicetree/bindings/eeprom/at24.txt | 1 +
drivers/misc/eeprom/Kconfig | 2 +-
drivers/misc/eeprom/at24.c | 3 +++
3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
index aededdbc262b..f9a7c984274c 100644
--- a/Documentation/devicetree/bindings/eeprom/at24.txt
+++ b/Documentation/devicetree/bindings/eeprom/at24.txt
@@ -27,6 +27,7 @@ Required properties:
"atmel,24c256",
"atmel,24c512",
"atmel,24c1024",
+ "atmel,24c2048",
If <manufacturer> is not "atmel", then a fallback must be used
with the same <model> and "atmel" as manufacturer.
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index 68a1ac929917..d382b13c27dd 100644
--- 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 7e50e1d6f58c..94836fcbe721 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -173,6 +173,7 @@ 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);
@@ -199,6 +200,7 @@ 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 */ }
};
@@ -227,6 +229,7 @@ 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);
--
2.11.0
next reply other threads:[~2018-11-01 5:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-31 20:49 Adrian Bunk [this message]
2018-11-01 9:22 ` [PATCH v3] eeprom: at24: Add 24c2048 Bartosz Golaszewski
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