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 v4 2/3] eeprom: at24: add support to fetch eeprom device property "size"
Date: Wed, 30 Aug 2017 22:35:39 +0530 [thread overview]
Message-ID: <1504112740-14072-3-git-send-email-divagar.mohandass@intel.com> (raw)
In-Reply-To: <1504112740-14072-1-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
next prev parent reply other threads:[~2017-08-30 17:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-30 17:05 [PATCH v4 0/3] enable eeprom "size" property and runtime pm Divagar Mohandass
[not found] ` <1504112740-14072-1-git-send-email-divagar.mohandass-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-08-30 17:05 ` [PATCH v4 1/3] dt-bindings: add eeprom "size" property Divagar Mohandass
2017-08-31 15:26 ` Rob Herring
2017-09-01 12:02 ` Mohandass, Divagar
2017-08-30 17:05 ` Divagar Mohandass [this message]
2017-08-30 17:05 ` [PATCH v4 3/3] eeprom: at24: enable runtime pm support Divagar Mohandass
2017-08-30 21:19 ` Sakari Ailus
[not found] ` <20170830211938.3m4xdwlfq5yozymq-S+BSfZ9RZZmRSg0ZkenSGLdO1Tsj/99ntUK59QYPAWc@public.gmane.org>
2017-08-31 11:24 ` Mohandass, Divagar
2017-08-31 15:37 ` Sakari Ailus
[not found] ` <20170831153702.eeilqwdxsoy4e3vt-S+BSfZ9RZZmRSg0ZkenSGLdO1Tsj/99ntUK59QYPAWc@public.gmane.org>
2017-09-01 18:26 ` Mohandass, Divagar
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