From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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 <srinivas.kandagatla@linaro.org>
Subject: [PATCH v2 1/5] soundwire: Add compute_params callback
Date: Tue, 13 Aug 2019 09:35:46 +0100 [thread overview]
Message-ID: <20190813083550.5877-2-srinivas.kandagatla@linaro.org> (raw)
In-Reply-To: <20190813083550.5877-1-srinivas.kandagatla@linaro.org>
From: Vinod Koul <vkoul@kernel.org>
This callback allows masters to compute the bus parameters required.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/soundwire/stream.c | 10 ++++++++++
include/linux/soundwire/sdw.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index a0476755a459..60bc2fe42928 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1483,6 +1483,16 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream)
bus->params.bandwidth += m_rt->stream->params.rate *
m_rt->ch_count * m_rt->stream->params.bps;
+ /* Compute params */
+ if (bus->compute_params) {
+ ret = bus->compute_params(bus);
+ if (ret < 0) {
+ dev_err(bus->dev, "Compute params failed: %d",
+ ret);
+ return ret;
+ }
+ }
+
/* Program params */
ret = sdw_program_params(bus);
if (ret < 0) {
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index bea46bd8b6ce..aac68e879fae 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -718,6 +718,7 @@ struct sdw_master_ops {
* Bit set implies used number, bit clear implies unused number.
* @bus_lock: bus lock
* @msg_lock: message lock
+ * @compute_params: points to Bus resource management implementation
* @ops: Master callback ops
* @port_ops: Master port callback ops
* @params: Current bus parameters
@@ -739,6 +740,7 @@ struct sdw_bus {
DECLARE_BITMAP(assigned, SDW_MAX_DEVICES);
struct mutex bus_lock;
struct mutex msg_lock;
+ int (*compute_params)(struct sdw_bus *bus);
const struct sdw_master_ops *ops;
const struct sdw_master_port_ops *port_ops;
struct sdw_bus_params params;
--
2.21.0
next prev parent reply other threads:[~2019-08-13 8:36 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 8:35 [PATCH v2 0/5] soundwire: Add support to Qualcomm SoundWire master Srinivas Kandagatla
2019-08-13 8:35 ` Srinivas Kandagatla [this message]
2019-08-13 14:34 ` [PATCH v2 1/5] soundwire: Add compute_params callback Pierre-Louis Bossart
2019-08-13 18:17 ` Srinivas Kandagatla
2019-08-13 19:08 ` Pierre-Louis Bossart
2019-08-14 4:05 ` Vinod Koul
2019-09-04 9:28 ` Vinod Koul
2019-09-04 13:36 ` [alsa-devel] " Pierre-Louis Bossart
2019-08-13 8:35 ` [PATCH v2 2/5] soundwire: stream: make stream name a const pointer Srinivas Kandagatla
2019-09-04 9:29 ` Vinod Koul
2019-08-13 8:35 ` [PATCH v2 3/5] ASoC: core: add support to snd_soc_dai_get_sdw_stream() Srinivas Kandagatla
2019-08-13 14:44 ` [alsa-devel] " Pierre-Louis Bossart
2019-08-13 16:50 ` Srinivas Kandagatla
2019-08-13 17:51 ` Pierre-Louis Bossart
2019-08-13 18:06 ` Srinivas Kandagatla
2019-08-13 19:15 ` Pierre-Louis Bossart
2019-08-13 19:18 ` Mark Brown
2019-08-13 19:38 ` Pierre-Louis Bossart
2019-08-13 19:58 ` Mark Brown
2019-08-14 4:11 ` Vinod Koul
2019-08-14 9:08 ` Mark Brown
2019-08-14 14:09 ` Pierre-Louis Bossart
2019-10-09 8:32 ` Srinivas Kandagatla
2019-10-09 14:29 ` Pierre-Louis Bossart
2019-10-09 16:01 ` Srinivas Kandagatla
2019-10-09 18:53 ` Pierre-Louis Bossart
2019-10-10 8:50 ` Srinivas Kandagatla
2019-10-10 12:03 ` Charles Keepax
2019-10-10 13:51 ` Mark Brown
2019-10-10 14:01 ` Pierre-Louis Bossart
2019-10-10 14:52 ` Srinivas Kandagatla
2019-10-10 15:49 ` Pierre-Louis Bossart
2019-10-11 12:30 ` Srinivas Kandagatla
2019-08-13 16:03 ` Cezary Rojewski
2019-08-13 16:52 ` Srinivas Kandagatla
2019-08-13 17:29 ` Cezary Rojewski
2019-08-13 19:19 ` Mark Brown
2019-08-13 8:35 ` [PATCH v2 4/5] dt-bindings: soundwire: add bindings for Qcom controller Srinivas Kandagatla
2019-08-23 7:28 ` Vinod Koul
2019-08-30 8:05 ` Srinivas Kandagatla
2019-08-13 8:35 ` [PATCH v2 5/5] soundwire: qcom: add support for SoundWire controller Srinivas Kandagatla
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