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Date:   Mon, 18 Feb 2019 14:42:05 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adrian Bunk <bunk@...nel.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.20 02/92] eeprom: at24: add support for 24c2048

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit 37cf28d3b5bca1b532a0b6aac722e7f2788a9294 ]

Works with ST M24M02.

Signed-off-by: Adrian Bunk <bunk@...nel.org>
Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/misc/eeprom/Kconfig | 2 +-
 drivers/misc/eeprom/at24.c  | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index fe7a1d27a017..a846faefa210 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 636ed7149793..ddfcf4ade7bf 100644
--- 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);
-- 
2.19.1



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