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path: root/sound/soc/tegra/tegra210_dmic.c
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2021-01-21ASoC: tegra: sync parameter naming (rate/sample_bits)Kuninori Morimoto1-1/+1
This patch syncs naming rule. - xxx_rates; + xxx_rate; - xxx_samplebits; + xxx_sample_bits; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87o8hqoli4.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-03ASoC: tegra: remove unneeded semicolonTom Rix1-3/+3
A semicolon is not needed after a switch statement. Signed-off-by: Tom Rix <trix@redhat.com> Acked-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/20201101172412.2306144-1-trix@redhat.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-03ASoC: tegra: tegra210_dmic: Fix compile warning with CONFIG_PM=nTakashi Iwai1-2/+2
Fix trivial compile warnings wrt unused functions by adding __maybe_unused prefix: sound/soc/tegra/tegra210_dmic.c:43:12: warning: 'tegra210_dmic_runtime_suspend' defined but not used [-Wunused-function] sound/soc/tegra/tegra210_dmic.c:55:12: warning: 'tegra210_dmic_runtime_resume' defined but not used [-Wunused-function] Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver") Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20200803141850.23713-5-tiwai@suse.de Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-23ASoC: tegra: Fix build error due to 64-by-32 divisionSameer Pujar1-1/+2
Build errors are seen on 32-bit platforms because of a plain 64-by-32 division. For example, following build erros were reported. "ERROR: modpost: "__udivdi3" [sound/soc/tegra/snd-soc-tegra210-dmic.ko] undefined!" "ERROR: modpost: "__divdi3" [sound/soc/tegra/snd-soc-tegra210-dmic.ko] undefined!" This can be fixed by using div_u64() helper from 'math64.h' header. Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver") Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1595492011-2411-1-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-20ASoC: tegra: Add Tegra210 based DMIC driverSameer Pujar1-0/+455
The Digital MIC (DMIC) Controller is used to interface with Pulse Density Modulation (PDM) input devices. The DMIC controller implements a converter to convert PDM signals to Pulse Code Modulation (PCM) signals. From signal flow perspective, the DMIC can be viewed as a PDM receiver. This patch registers DMIC component with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes DMIC interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow to build the driver. The DMIC devices can be enabled in the DT via "nvidia,tegra210-dmic" compatible string. This driver can be used for Tegra186 and Tegra194 chips as well. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1595134890-16470-4-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>