linux-kernel - [PATCH 09/14] eeprom: at24: platform

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Message-Id: <1464558832-2262-10-git-send-email-bgolaszewski@baylibre.com>
Date:	Sun, 29 May 2016 23:53:47 +0200
From:	Bartosz Golaszewski <bgolaszewski@...libre.com>
To:	Wolfram Sang <wsa@...-dreams.de>,
	linux-i2c <linux-i2c@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Lunn <andrew@...n.ch>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	GregKH <greg@...ah.com>
Cc:	Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH 09/14] eeprom: at24: platform_data: add serial number flag

In preparation for supporting the at24cs EEPROM series add a new flag
to the at24 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 d5e9024..fe0507e 100644
--- a/include/linux/platform_data/at24.h
+++ b/include/linux/platform_data/at24.h
@@ -48,6 +48,7 @@ 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 nvmem_device *nvmem, void *context);
 	void		*context;
-- 
2.7.4