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path: root/sound/soc/tegra/tegra210_dmic.c
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2021-11-18ASoC: tegra: Fix kcontrol put callback in DMICGravatar Sameer Pujar 1-34/+149
The kcontrol put callback is expected to return 1 when there is change in HW or when the update is acknowledged by driver. This would ensure that change notifications are sent to subscribed applications. Update the DMIC driver accordingly. Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver") Suggested-by: Jaroslav Kysela <perex@perex.cz> Suggested-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sameer Pujar <spujar@nvidia.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/1637219231-406-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-18ASoC: tegra: Fix wrong value type in DMICGravatar Sameer Pujar 1-12/+11
The enum controls are expected to use enumerated value type. Update relevant references in control get/put callbacks. Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver") Suggested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sameer Pujar <spujar@nvidia.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/1637219231-406-4-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-01-21ASoC: tegra: sync parameter naming (rate/sample_bits)Gravatar Kuninori Morimoto 1-1/+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 semicolonGravatar Tom Rix 1-3/+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=nGravatar Takashi Iwai 1-2/+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 divisionGravatar Sameer Pujar 1-1/+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 driverGravatar Sameer Pujar 1-0/+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>