From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Wed, 24 Jul 2013 13:02:08 +0200 Subject: [U-Boot] [PATCH] mxc_gpio: Correct the GPIO handling in gpio_direction_output() In-Reply-To: <1373896707-4204-1-git-send-email-dirk.behme@de.bosch.com> References: <1373896707-4204-1-git-send-email-dirk.behme@de.bosch.com> Message-ID: <51EFB430.2030308@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 15/07/2013 15:58, Dirk Behme wrote: > Setting the direction and an output value should be done by > > First, set the desired output value. > > Then, switch to output. > > If this is done in the inverse order, like at the moment, > there can be a glitch on the GPIO line while switching first > the old output value and aftwards the new one. > > Fix this by inverting the order of the direction/set_value > calls. > > Signed-off-by: Dirk Behme > --- Applied to u-boot-imx, thanks ! Best regards, SWtefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================