diff options
| author | Kuninori Morimoto | 2014-03-18 03:29:55 +0100 |
|---|---|---|
| committer | Mark Brown | 2014-03-21 19:14:56 +0100 |
| commit | 90e8e50fce3585d6f9902701de08389b027dadc6 (patch) | |
| tree | 67971cdae1de6d546e530d05ba3964f553cf9c24 /sound/soc/sh/rcar/ssi.c | |
| parent | ASoC: rsnd: rename scu to src (diff) | |
| download | kernel-qcow2-linux-90e8e50fce3585d6f9902701de08389b027dadc6.tar.gz kernel-qcow2-linux-90e8e50fce3585d6f9902701de08389b027dadc6.tar.xz kernel-qcow2-linux-90e8e50fce3585d6f9902701de08389b027dadc6.zip | |
ASoC: rsnd: add DeviceTree support
Support for loading the Renesas R-Car sound driver via DeviceTree.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/sh/rcar/ssi.c')
| -rw-r--r-- | sound/soc/sh/rcar/ssi.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 633b23d209b9..4b7e20603dd7 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -588,7 +588,61 @@ static void rsnd_ssi_parent_clk_setup(struct rsnd_priv *priv, struct rsnd_ssi *s } } + +static void rsnd_of_parse_ssi(struct platform_device *pdev, + const struct rsnd_of_data *of_data, + struct rsnd_priv *priv) +{ + struct device_node *node; + struct device_node *np; + struct rsnd_ssi_platform_info *ssi_info; + struct rcar_snd_info *info = rsnd_priv_to_info(priv); + struct device *dev = &pdev->dev; + int nr, i; + + if (!of_data) + return; + + node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi"); + if (!node) + return; + + nr = of_get_child_count(node); + if (!nr) + return; + + ssi_info = devm_kzalloc(dev, + sizeof(struct rsnd_ssi_platform_info) * nr, + GFP_KERNEL); + if (!ssi_info) { + dev_err(dev, "ssi info allocation error\n"); + return; + } + + info->ssi_info = ssi_info; + info->ssi_info_nr = nr; + + i = -1; + for_each_child_of_node(node, np) { + i++; + + ssi_info = info->ssi_info + i; + + /* + * pin settings + */ + if (of_get_property(np, "shared-pin", NULL)) + ssi_info->flags |= RSND_SSI_CLK_PIN_SHARE; + + /* + * irq + */ + ssi_info->pio_irq = irq_of_parse_and_map(np, 0); + } +} + int rsnd_ssi_probe(struct platform_device *pdev, + const struct rsnd_of_data *of_data, struct rsnd_priv *priv) { struct rcar_snd_info *info = rsnd_priv_to_info(priv); @@ -600,6 +654,8 @@ int rsnd_ssi_probe(struct platform_device *pdev, char name[RSND_SSI_NAME_SIZE]; int i, nr; + rsnd_of_parse_ssi(pdev, of_data, priv); + /* * init SSI */ |