From mboxrd@z Thu Jan 1 00:00:00 1970 From: alanx.chiang@intel.com Subject: [RESEND PATCH v4 1/2] dt-bindings: at24: Add address-width property Date: Wed, 25 Jul 2018 11:20:21 +0800 Message-ID: <1532488822-5622-2-git-send-email-alanx.chiang@intel.com> References: <1532488822-5622-1-git-send-email-alanx.chiang@intel.com> Return-path: In-Reply-To: <1532488822-5622-1-git-send-email-alanx.chiang@intel.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-i2c@vger.kernel.org Cc: andy.yeh@intel.com, sakari.ailus@linux.intel.com, andriy.shevchenko@linux.intel.com, andriy.shevchenko@intel.com, rajmohan.mani@intel.com, andy.shevchenko@gmail.com, tfiga@chromium.org, jcliang@chromium.org, brgl@bgdev.pl, robh+dt@kernel.org, mark.rutland@arm.com, arnd@arndb.de, rpjday@crashcourse.ca, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Alan Chiang List-Id: linux-i2c@vger.kernel.org From: Alan Chiang Currently the only way to use a variant of a supported model with a different address with a different address width is to define a new compatible string and the corresponding chip data structure. Provide a flexible way to specify the size of the address pointer by defining a new property: address-width. Signed-off-by: Alan Chiang Signed-off-by: Andy Yeh Acked-by: Sakari Ailus Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/eeprom/at24.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt index 61d833a..aededdb 100644 --- a/Documentation/devicetree/bindings/eeprom/at24.txt +++ b/Documentation/devicetree/bindings/eeprom/at24.txt @@ -72,6 +72,8 @@ Optional properties: - wp-gpios: GPIO to which the write-protect pin of the chip is connected. + - address-width: number of address bits (one of 8, 16). + Example: eeprom@52 { -- 2.7.4