From: Ben Gardiner Date: Thu, 21 Apr 2011 18:19:04 +0000 (-0400) Subject: davinci-mcasp: fix _CBM_CFS pin directions X-Git-Tag: v2.6.39-rc7~5^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=db92f43745dc07acd05ca64a06075801c042cb57;p=platform%2Fkernel%2Flinux-3.10.git davinci-mcasp: fix _CBM_CFS pin directions The current davinci_mcasp_set_dai_fmt() sets bits ACLKX and ACLKR in the PDIR register for the codec clock-master/frame-slave mode; however, this results in the ACLKX and ACLKR pins being outputs according to SPRUFM1 [1] which conflicts with "codec is clock master." Similarly to the previous patch in this series, "fix _CBM_CFS hw_params" -- For codec clock-master/frame-slave mode (_CMB_CFS), clear bits ACLKX and ACLKR in the PDIR register to set the pins as inputs and hence allow externally sourced bit-clocks. [1] http://www.ti.com/litv/pdf/sprufm1 Signed-off-by: Ben Gardiner Reviewed-by: James Nuss Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index 09c4ff9..4ddc6d3 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -445,8 +445,10 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai, mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); + mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, + ACLKX | ACLKR); mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, - ACLKX | AFSX | ACLKR | AFSR); + AFSX | AFSR); break; case SND_SOC_DAIFMT_CBM_CFM: /* codec is clock and frame master */