[v7,2/3] eeprom: at24: add support to fetch eeprom device property "size"

Message ID 1507615237-21744-3-git-send-email-divagar.mohandass@intel.com
State Accepted
Headers show
Series
  • enable eeprom "size" property and runtime pm
Related show

Commit Message

Divagar Mohandass Oct. 10, 2017, 6 a.m.
Obtain the size of the EEPROM chip from DT if the "size" property is
specified for the device.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Divagar Mohandass <divagar.mohandass@intel.com>
---
 drivers/misc/eeprom/at24.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Wolfram Sang Oct. 17, 2017, 9:36 p.m. | #1
On Tue, Oct 10, 2017 at 11:30:36AM +0530, Divagar Mohandass wrote:
> Obtain the size of the EEPROM chip from DT if the "size" property is
> specified for the device.
> 
> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> Signed-off-by: Divagar Mohandass <divagar.mohandass@intel.com>

Applied to for-next, thanks!

Patch

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;