From: Peter Ujfalusi peter.ujfalusi@ti.com
There is a single McASP on OMAP4 (and OMAP5) which is configured to only support DIT playback mode on a single serializer.
Add 0x200 offset to DAT port address as the TRM suggests it.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- include/linux/platform_data/davinci_asp.h | 1 + sound/soc/ti/Kconfig | 1 + sound/soc/ti/davinci-mcasp.c | 26 ++++++++++++++++++++--- 3 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/include/linux/platform_data/davinci_asp.h b/include/linux/platform_data/davinci_asp.h index 5d1fb0d78a22..76b13ef67562 100644 --- a/include/linux/platform_data/davinci_asp.h +++ b/include/linux/platform_data/davinci_asp.h @@ -96,6 +96,7 @@ enum { MCASP_VERSION_2, /* DA8xx/OMAPL1x */ MCASP_VERSION_3, /* TI81xx/AM33xx */ MCASP_VERSION_4, /* DRA7xxx */ + MCASP_VERSION_OMAP, /* OMAP4/5 */ };
enum mcbsp_clk_input_pin { diff --git a/sound/soc/ti/Kconfig b/sound/soc/ti/Kconfig index 698d7bc84dcf..1d9fe3fca193 100644 --- a/sound/soc/ti/Kconfig +++ b/sound/soc/ti/Kconfig @@ -35,6 +35,7 @@ config SND_SOC_DAVINCI_MCASP various Texas Instruments SoCs like: - daVinci devices - Sitara line of SoCs (AM335x, AM438x, etc) + - OMAP4 - DRA7x devices - Keystone devices - K3 devices (am654, j721e) diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c index 64ec6d485834..56a19eeec5c7 100644 --- a/sound/soc/ti/davinci-mcasp.c +++ b/sound/soc/ti/davinci-mcasp.c @@ -1794,6 +1794,12 @@ static struct davinci_mcasp_pdata dra7_mcasp_pdata = { .version = MCASP_VERSION_4, };
+static struct davinci_mcasp_pdata omap_mcasp_pdata = { + .tx_dma_offset = 0x200, + .rx_dma_offset = 0, + .version = MCASP_VERSION_OMAP, +}; + static const struct of_device_id mcasp_dt_ids[] = { { .compatible = "ti,dm646x-mcasp-audio", @@ -1811,6 +1817,10 @@ static const struct of_device_id mcasp_dt_ids[] = { .compatible = "ti,dra7-mcasp-audio", .data = &dra7_mcasp_pdata, }, + { + .compatible = "ti,omap4-mcasp-audio", + .data = &omap_mcasp_pdata, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mcasp_dt_ids); @@ -2350,10 +2360,17 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK]; dma_data->filter_data = "tx"; - if (dat) + if (dat) { dma_data->addr = dat->start; - else + /* + * According to the TRM there should be 0x200 offset added to + * the DAT port address + */ + if (mcasp->version == MCASP_VERSION_OMAP) + dma_data->addr += davinci_mcasp_txdma_offset(mcasp->pdata); + } else { dma_data->addr = mem->start + davinci_mcasp_txdma_offset(mcasp->pdata); + }
/* RX is not valid in DIT mode */ @@ -2418,7 +2435,10 @@ static int davinci_mcasp_probe(struct platform_device *pdev) ret = edma_pcm_platform_register(&pdev->dev); break; case PCM_SDMA: - ret = sdma_pcm_platform_register(&pdev->dev, "tx", "rx"); + if (mcasp->op_mode == DAVINCI_MCASP_IIS_MODE) + ret = sdma_pcm_platform_register(&pdev->dev, "tx", "rx"); + else + ret = sdma_pcm_platform_register(&pdev->dev, "tx", NULL); break; case PCM_UDMA: ret = udma_pcm_platform_register(&pdev->dev);