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[91.155.111.71]) by smtp.gmail.com with ESMTPSA id k11sm268826lfc.272.2021.07.04.08.02.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jul 2021 08:02:37 -0700 (PDT) From: Peter Ujfalusi To: broonie@kernel.org, tony@atomide.com Cc: alsa-devel@alsa-project.org, lgirdwood@gmail.com, linux-omap@vger.kernel.org, hns@goldelico.com Subject: [PATCH 3/5] ASoC: ti: davinci-mcasp: Add support for the OMAP4 version of McASP Date: Sun, 4 Jul 2021 18:04:48 +0300 Message-Id: <20210704150450.20106-4-peter.ujfalusi@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210704150450.20106-1-peter.ujfalusi@gmail.com> References: <20210704150450.20106-1-peter.ujfalusi@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Peter Ujfalusi 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 --- 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 e56a22c28467..f453728d2afc 100644 --- a/sound/soc/ti/davinci-mcasp.c +++ b/sound/soc/ti/davinci-mcasp.c @@ -1788,6 +1788,12 @@ 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", @@ -1805,6 +1811,10 @@ 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); @@ -2344,10 +2354,17 @@ 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 */ @@ -2412,7 +2429,10 @@ 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);