From 0e79612012e1da66133e3c8499bc7c020f006c89 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Eric=20B=C3=A9nard?= Date: Thu, 27 May 2010 10:58:54 +0200 Subject: ASoC: imx-ssi.c: add new choices to platform configuration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * introduce 3 new flags to allow a more detailed configuration of the SSI link : IMX_SSI_NET : enable Network Mode IMX_SSI_SYN : enable Synchronous Mode IMX_SSI_USE_I2S_SLAVE : enable I2S Slave Mode * new platform can use these settings without breaking actual platforms. Signed-off-by: Eric Bénard Acked-by: Sascha Hauer Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- arch/arm/plat-mxc/include/mach/ssi.h | 3 +++ sound/soc/imx/imx-ssi.c | 11 +++++++++-- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm/plat-mxc/include/mach/ssi.h b/arch/arm/plat-mxc/include/mach/ssi.h index c34ded523f10..63f3c2804239 100644 --- a/arch/arm/plat-mxc/include/mach/ssi.h +++ b/arch/arm/plat-mxc/include/mach/ssi.h @@ -10,6 +10,9 @@ struct imx_ssi_platform_data { unsigned int flags; #define IMX_SSI_DMA (1 << 0) #define IMX_SSI_USE_AC97 (1 << 1) +#define IMX_SSI_NET (1 << 2) +#define IMX_SSI_SYN (1 << 3) +#define IMX_SSI_USE_I2S_SLAVE (1 << 4) void (*ac97_reset) (struct snd_ac97 *ac97); void (*ac97_warm_reset)(struct snd_ac97 *ac97); }; diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c index 80b4fee2442b..50f51624c535 100644 --- a/sound/soc/imx/imx-ssi.c +++ b/sound/soc/imx/imx-ssi.c @@ -83,8 +83,6 @@ static int imx_ssi_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, /* * SSI DAI format configuration. * Should only be called when port is inactive (i.e. SSIEN = 0). - * Note: We don't use the I2S modes but instead manually configure the - * SSI for I2S because the I2S mode is only a register preset. */ static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) { @@ -99,6 +97,10 @@ static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) /* data on rising edge of bclk, frame low 1clk before data */ strcr |= SSI_STCR_TFSI | SSI_STCR_TEFS | SSI_STCR_TXBIT0; scr |= SSI_SCR_NET; + if (ssi->flags & IMX_SSI_USE_I2S_SLAVE) { + scr &= ~SSI_I2S_MODE_MASK; + scr |= SSI_SCR_I2S_MODE_SLAVE; + } break; case SND_SOC_DAIFMT_LEFT_J: /* data on rising edge of bclk, frame high with data */ @@ -143,6 +145,11 @@ static int imx_ssi_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) strcr |= SSI_STCR_TFEN0; + if (ssi->flags & IMX_SSI_NET) + scr |= SSI_SCR_NET; + if (ssi->flags & IMX_SSI_SYN) + scr |= SSI_SCR_SYN; + writel(strcr, ssi->base + SSI_STCR); writel(strcr, ssi->base + SSI_SRCR); writel(scr, ssi->base + SSI_SCR); -- cgit v1.2.3