From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Fri, 27 Jul 2012 13:45:47 +0100 Subject: [PATCH 03/18] ASoC: Ux500: Enable MOP500 driver for Device Tree In-Reply-To: <1343393162-11938-1-git-send-email-lee.jones@linaro.org> References: <1343393162-11938-1-git-send-email-lee.jones@linaro.org> Message-ID: <1343393162-11938-4-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Here we ensure that the MOP500 audio driver will be probed during a Device Tree boot. We also parse the sound node to link together the codec, dma and the CPU-side Digital Audio Interface. Signed-off-by: Lee Jones --- sound/soc/ux500/mop500.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c index 31c4d26..d84a073 100644 --- a/sound/soc/ux500/mop500.c +++ b/sound/soc/ux500/mop500.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -56,14 +57,48 @@ static struct snd_soc_card mop500_card = { .num_links = ARRAY_SIZE(mop500_dai_links), }; +static int __devinit mop500_of_probe(struct platform_device *pdev, + struct device_node *np) +{ + struct device_node *codec_np, *platform_np, *msp_np[2]; + int i; + + platform_np = of_parse_phandle(np, "platform-pcm-dma", 0); + msp_np[0] = of_parse_phandle(np, "cpu-dai", 0); + msp_np[1] = of_parse_phandle(np, "cpu-dai", 1); + codec_np = of_parse_phandle(np, "audio-codec", 0); + + if (!(platform_np && msp_np[0] && msp_np[1] && codec_np)) { + dev_err(&pdev->dev, "Phandle missing or invalid\n"); + return -EINVAL; + } + + for (i = 0; i < 2; i++) { + mop500_dai_links[i].platform_of_node = platform_np; + mop500_dai_links[i].platform_name = NULL; + mop500_dai_links[i].cpu_of_node = msp_np[i]; + mop500_dai_links[i].cpu_dai_name = NULL; + mop500_dai_links[i].codec_of_node = codec_np; + mop500_dai_links[i].codec_name = NULL; + } + + return 0; +} static int __devinit mop500_probe(struct platform_device *pdev) { + struct device_node *np = pdev->dev.of_node; int ret; pr_debug("%s: Enter.\n", __func__); dev_dbg(&pdev->dev, "%s: Enter.\n", __func__); + if (np) { + ret = mop500_of_probe(pdev, np); + if (ret) + return ret; + } + mop500_card.dev = &pdev->dev; dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n", @@ -101,10 +136,16 @@ static int __devexit mop500_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id snd_soc_mop500_match[] = { + { .compatible = "stericsson,snd-soc-mop500", }, + {}, +}; + static struct platform_driver snd_soc_mop500_driver = { .driver = { .owner = THIS_MODULE, .name = "snd-soc-mop500", + .of_match_table = snd_soc_mop500_match, }, .probe = mop500_probe, .remove = __devexit_p(mop500_remove), -- 1.7.9.5