From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter.ujfalusi@ti.com (=?ISO-8859-1?Q?P=E9ter_Ujfalusi?=) Date: Mon, 08 Oct 2012 11:00:30 +0300 Subject: [PATCH 0/9] ARM: dts/OMAP: Pinmux audio configuration for OMAP4+ In-Reply-To: <20121005230354.GS3874@atomide.com> References: <1349351848-12972-1-git-send-email-peter.ujfalusi@ti.com> <20121005230354.GS3874@atomide.com> Message-ID: <5072881E.2040009@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 10/06/2012 02:03 AM, Tony Lindgren wrote: > * Peter Ujfalusi [121004 04:57]: >> Hello, >> >> u-boot recently stopped configuring 'non essential' pin mux. This change leaves >> the audio essential pins in non configured state which prevents the use of audio. >> The following series makes sure that the needed pins are configured correctly by >> the kernel on OMAP4 and OMAP5. >> >> Tony: can this series queued for 3.7? > > Let's see if that's possible to avoid mysterious bug reports > of things not working. > > If we can't merge it, then it might be worth adding a warning > that bails out early after some pin is checked or similar. With new enough u-boot the twl6040 fails to probe (mux for nirq2 and power GPIO is not configured) which leads to no audio on OMAP4/5. Adding another warning - and check - does not going to help to clarify the situation IMHO. We can still enable the CONFIG_SYS_ENABLE_PADS_ALL in u-boot and recompile it, but this is disabled as default and to be frank there is no guaranty that this is going to be available let's say next week. -- P?ter