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From: Divagar Mohandass <divagar.mohandass@intel.com>
To: robh+dt@kernel.org, mark.rutland@arm.com, wsa@the-dreams.de,
	sakari.ailus@iki.fi
Cc: devicetree@vger.kernel.org, linux-i2c@vger.kernel.org,
	linux-kernel@vger.kernel.org, rajmohan.mani@intel.com,
	Divagar Mohandass <divagar.mohandass@intel.com>
Subject: [PATCH v5 2/3] eeprom: at24: add support to fetch eeprom device property "size"
Date: Mon,  4 Sep 2017 12:10:44 +0530	[thread overview]
Message-ID: <1504507245-12902-3-git-send-email-divagar.mohandass@intel.com> (raw)
In-Reply-To: <1504507245-12902-1-git-send-email-divagar.mohandass@intel.com>

Obtain the size of the EEPROM chip from DT if the "size" property is
specified for the device.

Signed-off-by: Divagar Mohandass <divagar.mohandass@intel.com>
---
 drivers/misc/eeprom/at24.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 764ff5df..2199c42 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -570,6 +570,10 @@ static void at24_get_pdata(struct device *dev, struct at24_platform_data *chip)
 	if (device_property_present(dev, "read-only"))
 		chip->flags |= AT24_FLAG_READONLY;
 
+	err = device_property_read_u32(dev, "size", &val);
+	if (!err)
+		chip->byte_len = val;
+
 	err = device_property_read_u32(dev, "pagesize", &val);
 	if (!err) {
 		chip->page_size = val;
-- 
1.9.1

  parent reply	other threads:[~2017-09-04  6:40 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-04  6:40 [PATCH v5 0/3] enable eeprom "size" property and runtime pm Divagar Mohandass
2017-09-04  6:40 ` [PATCH v5 1/3] dt-bindings: add eeprom "size" property Divagar Mohandass
2017-09-04  6:40 ` Divagar Mohandass [this message]
2017-09-04  6:40 ` [PATCH v5 3/3] eeprom: at24: enable runtime pm support Divagar Mohandass
2017-09-04  7:38   ` Sakari Ailus
2017-09-04 10:27     ` Mohandass, Divagar

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