From: Koen Kooi Subject: [PATCH v2] board-omap3beagle: set i2c-3 to 100kHz Date: Sun, 25 Jan 2009 09:46:17 +0100 Message-ID: <1232873177-15531-1-git-send-email-koen@openembedded.org> Return-path: Received: from [80.81.242.146] ([80.81.242.146]:51007 "EHLO amethyst.openembedded.net" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751383AbZAYIo7 (ORCPT ); Sun, 25 Jan 2009 03:44:59 -0500 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Cc: Koen Kooi From: Koen Kooi Changing it do 100kHz is needed to make more devices works properly. Controlling the TI DLP Pico projector[1] doesn't work properly at 400kHz, 100kHz and lower work fine. EDID readout is unaffected by this change. [1] http://focus.ti.com/dlpdmd/docs/dlpdiscovery.tsp?sectionId=60&tabId=2234 Signed-off-by: Koen Kooi --- arch/arm/mach-omap2/board-omap3beagle.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index fe97bab..f7a6f7d 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -227,7 +227,9 @@ static int __init omap3_beagle_i2c_init(void) #ifdef CONFIG_I2C2_OMAP_BEAGLE omap_register_i2c_bus(2, 400, NULL, 0); #endif - omap_register_i2c_bus(3, 400, NULL, 0); + /* Bus 3 is attached to the DVI port where devices like the pico DLP + * projector don't work reliably with 400kHz */ + omap_register_i2c_bus(3, 100, NULL, 0); return 0; } -- 1.5.6.5