From ff71334a46844d0ae6ff0055c549790bcd27bb10 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Wed, 4 Aug 2010 17:51:08 -0500 Subject: asoc/multi-component: fsl: add support for disabled SSI nodes Add support for adding "status = disabled" to an SSI node to incidate that it is not wired on the board. This replaces the not-so-intuitive previous method of omitting a codec-handle property. Signed-off-by: Timur Tabi Acked-by: Kumar Gala Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- sound/soc/fsl/fsl_ssi.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'sound/soc/fsl') diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 00e3e625b52..7939c337ed9 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -625,12 +625,19 @@ static int __devinit fsl_ssi_probe(struct of_device *of_dev, struct resource res; char name[64]; - /* We are only interested in SSIs with a codec phandle in them, so let's - * make sure this SSI has one. + /* SSIs that are not connected on the board should have a + * status = "disabled" + * property in their device tree nodes. */ - if (!of_get_property(np, "codec-handle", NULL)) + if (!of_device_is_available(np)) return -ENODEV; + /* Check for a codec-handle property. */ + if (!of_get_property(np, "codec-handle", NULL)) { + dev_err(&of_dev->dev, "missing codec-handle property\n"); + return -ENODEV; + } + /* We only support the SSI in "I2S Slave" mode */ sprop = of_get_property(np, "fsl,mode", NULL); if (!sprop || strcmp(sprop, "i2s-slave")) { -- cgit v1.2.3-70-g09d2