From: Albrecht =?iso-8859-1?b?RHJl3w==?= Subject: [Patch v2 2/2] 5200/mpc: improve i2c bus error recovery Date: Wed, 17 Feb 2010 19:59:18 +0100 Message-ID: <1266433158.2322.1@antares> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1"; Format="Flowed"; DelSp="Yes" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org To: Linux PPC Development , Devicetree Discussions , Grant Likely , Ben Dooks (embedded platforms) Cc: "Ira W. Snyder" List-Id: devicetree@vger.kernel.org Make the I2C adapter timeout configurable through a Device Tree property which gives the timeout in microseconds. Change vs. v.1: use "fsl,timeout" as property name (Thanks, Grant) Signed-off-by: Albrecht Dre=DF --- --- linux-2.6.32-orig/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2009-1= 2-03 04:51:21.000000000 +0100 +++ linux-2.6.32/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2010-02-17 = 14:18:01.000000000 +0100 @@ -21,6 +21,7 @@ Recommended properties : - fsl,preserve-clocking : boolean; if defined, the clock settings from the bootloader are preserved (not touched). - clock-frequency : desired I2C bus clock frequency in Hz. + - fsl,timeout : I2C bus timeout in microseconds. Examples : @@ -44,5 +45,6 @@ Examples : interrupts =3D <43 2>; interrupt-parent =3D <&mpic>; clock-frequency =3D <400000>; + fsl,timeout =3D <10000>; };