linux-kernel - [PATCH v2 2/9] eeprom: at24: new flag in platform

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Message-Id: <1445946233-6071-3-git-send-email-bgolaszewski@baylibre.com>
Date:	Tue, 27 Oct 2015 12:43:46 +0100
From:	Bartosz Golaszewski <bgolaszewski@...libre.com>
To:	Wolfram Sang <wsa@...-dreams.de>
Cc:	linux-i2c <linux-i2c@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH v2 2/9] eeprom: at24: new flag in platform_data

In preparation for supporting the at24cs EEPROM series add a new flag to
platform data. When set, it should tell the driver that the chip has an
additional read-only memory area that holds a factory pre-programmed serial
number.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
 include/linux/platform_data/at24.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/platform_data/at24.h b/include/linux/platform_data/at24.h
index 8d90f52..5686f91 100644
--- a/include/linux/platform_data/at24.h
+++ b/include/linux/platform_data/at24.h
@@ -47,6 +47,7 @@ struct at24_platform_data {
 #define AT24_FLAG_READONLY	BIT(6)	/* sysfs-entry will be read-only */
 #define AT24_FLAG_IRUGO		BIT(5)	/* sysfs-entry will be world-readable */
 #define AT24_FLAG_TAKE8ADDR	BIT(4)	/* take always 8 addresses (24c00) */
+#define AT24_FLAG_SERIAL	BIT(3)	/* factory-programmed serial number */
 
 	void		(*setup)(struct memory_accessor *, void *context);
 	void		*context;
-- 
2.1.4

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