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[86.30.250.44]) by smtp.gmail.com with ESMTPSA id o11sm8651822wrw.19.2019.08.13.01.35.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Aug 2019 01:35:57 -0700 (PDT) From: Srinivas Kandagatla To: vkoul@kernel.org, broonie@kernel.org Cc: bgoswami@codeaurora.org, plai@codeaurora.org, pierre-louis.bossart@linux.intel.com, robh+dt@kernel.org, devicetree@vger.kernel.org, lgirdwood@gmail.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, spapothi@codeaurora.org, Srinivas Kandagatla Subject: [PATCH v2 3/5] ASoC: core: add support to snd_soc_dai_get_sdw_stream() Date: Tue, 13 Aug 2019 09:35:48 +0100 Message-Id: <20190813083550.5877-4-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190813083550.5877-1-srinivas.kandagatla@linaro.org> References: <20190813083550.5877-1-srinivas.kandagatla@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On platforms which have smart speaker amplifiers connected via soundwire and modeled as aux devices in ASoC, in such usecases machine driver should be able to get sdw master stream from dai so that it can use the runtime stream to setup slave streams. soundwire already as a set function, get function would provide more flexibility to above configurations. Signed-off-by: Srinivas Kandagatla --- include/sound/soc-dai.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index dc48fe081a20..1e01f4a302e0 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -202,6 +202,7 @@ struct snd_soc_dai_ops { int (*set_sdw_stream)(struct snd_soc_dai *dai, void *stream, int direction); + void *(*get_sdw_stream)(struct snd_soc_dai *dai, int direction); /* * DAI digital mute - optional. * Called by soc-core to minimise any pops. @@ -410,4 +411,13 @@ static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai, return -ENOTSUPP; } +static inline void *snd_soc_dai_get_sdw_stream(struct snd_soc_dai *dai, + int direction) +{ + if (dai->driver->ops->get_sdw_stream) + return dai->driver->ops->get_sdw_stream(dai, direction); + else + return ERR_PTR(-ENOTSUPP); +} + #endif -- 2.21.0