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Tue, 15 Sep 2026 09:57:17 -0700 (PDT) From: Srinivas Kandagatla To: Mark Brown Cc: Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Pierre-Louis Bossart , Charles Keepax , Maciej Strozek , Bard Liao , Rob Herring , Krzysztof Kozlowski , Conor Dooley , patches@opensource.cirrus.com, linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Srinivas Kandagatla Subject: [PATCH v3 4/8] ASoC: SDCA: add class_ops with populate_function Date: Tue, 15 Sep 2026 17:56:46 +0100 Message-ID: <20260915165652.914893-5-srinivas.kandagatla@oss.qualcomm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260915165652.914893-1-srinivas.kandagatla@oss.qualcomm.com> References: <20260915165652.914893-1-srinivas.kandagatla@oss.qualcomm.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE1MDI0NyBTYWx0ZWRfX86WlXcvJoheC KECvpNPZsPAlUjbkRVWob3bFOsQflj1UFR8yCd9GPsmAD46o38/U0zQRwu/Q6bYxsMz+KZSSJl4 hNAWi8uQOzrdy+80+uUFtLSb9YjDR0s= X-Authority-Analysis: v=2.4 cv=Kr/YSmWN c=1 sm=1 tr=0 ts=6aa978f9 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=ZsC4DHZuhs/kKio7QBcDoQ==:17 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=RDHKc21CrRhZfFRGvR4A:9 a=O8hF6Hzn-FEA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-GUID: E0fN5gbMDbQ8LRvYkjYE3sKe07vJ7-kZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE1MDI0NyBTYWx0ZWRfXyRXzRl4TpDxx Z2ryhBTk7y2vR1RPPPbFelE5ysXVZmvDXRCNrui36STzlfJb+r3pr6i0oaxE2TuHWDxOmj2QaWV ymb1B+ikxcpwYPkmLX2yxszaB93Sl/ry7VANvAz2+rsrvj+f8HPepOkLo7gJf8H/yNtUr3WV2Mv sPHCTI0a/DToaSa9kcdM7SdzgehrdPz5XE6DFCzX/ZiBtMwUwMLnAz/bKPd8e5NIt2f7jRmLq+h QmfeawW723oey2xMj/R1U+LCjWYcCx1MZDM3gEW+g2AQoczghXNXaeMFsov4VBtiBTacq3jIHqK S18Wo+WZ6K7qLzp7XTaA/iT9Oe9n4KKdscyjLBdqC1uHCsLfQUeba0KglvaXheAuIgogLiC4/4f 5SN2WwWdKAhhvZClYBVESYCz/m+dyS9Cg+icpXEqByyJiuQaniFUU0H3Cvc5GDm2XexuCDmKNZF AzSedi0yY034yVxD/rQ== X-Proofpoint-ORIG-GUID: E0fN5gbMDbQ8LRvYkjYE3sKe07vJ7-kZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-15_04,2026-09-15_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 phishscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609150247 Add struct sdca_class_ops with a populate_function callback that lets codec drivers supply the SDCA topology (entities, clusters, init_table, ...) from static tables in place of sdca_parse_function() on DT/non-DisCo platforms. The callback is a pure data source and performs no bus I/O. Codec drivers embed sdca_class_drv in their own priv and register their populate_function through class_ops passed to sdca_class_probe(). Signed-off-by: Srinivas Kandagatla --- include/sound/sdca_class.h | 18 +++++++++++++++++- sound/soc/sdca/sdca_class.c | 9 +++++++-- sound/soc/sdca/sdca_class_function.c | 9 ++++++++- 3 files changed, 32 insertions(+), 4 deletions(-) diff --git a/include/sound/sdca_class.h b/include/sound/sdca_class.h index 9e6b0eab8a0e..90af5b914ba3 100644 --- a/include/sound/sdca_class.h +++ b/include/sound/sdca_class.h @@ -20,6 +20,18 @@ struct regmap; struct sdw_slave; struct sdca_function_data; +/** + * struct sdca_class_ops - optional codec-provided class callbacks + * @populate_function: fill @function (entities, clusters, init_table, ...) + * from static tables in place of sdca_parse_function() on + * DT/non-DisCo platforms. Pure data source; performs no + * bus I/O. Return 0 on success or a negative errno. + */ +struct sdca_class_ops { + int (*populate_function)(struct sdw_slave *slave, + struct sdca_function_data *function); +}; + struct sdca_class_drv { struct device *dev; struct regmap *dev_regmap; @@ -27,6 +39,8 @@ struct sdca_class_drv { struct sdca_interrupt_info *irq_info; + const struct sdca_class_ops *ops; + struct mutex regmap_lock; /* Serialise function initialisations */ struct mutex init_lock; @@ -34,7 +48,9 @@ struct sdca_class_drv { }; /* Library helpers used by codec-specific SDCA SoundWire drivers. */ -int sdca_class_probe(struct sdw_slave *sdw, struct sdca_class_drv *drv); +int sdca_class_probe(struct sdw_slave *sdw, + struct sdca_class_drv *drv, + const struct sdca_class_ops *ops); void sdca_class_remove(struct sdca_class_drv *drv); /* diff --git a/sound/soc/sdca/sdca_class.c b/sound/soc/sdca/sdca_class.c index 0e6dead41495..79fdb672be1d 100644 --- a/sound/soc/sdca/sdca_class.c +++ b/sound/soc/sdca/sdca_class.c @@ -144,6 +144,8 @@ static void class_boot_work(struct work_struct *work) * allocation and sets its own dev_set_drvdata() -- the framework * does not touch drvdata. Typically embedded in the codec's own * priv struct so codec drivers can keep per-slave state. + * @ops: optional codec-provided class callbacks (may be NULL for + * pure-generic SDCA parts that need no quirks) * * Codec-specific SoundWire drivers call this from their .probe after * allocating a struct sdca_class_drv (usually embedded in their own @@ -151,7 +153,9 @@ static void class_boot_work(struct work_struct *work) * sdca_class_drv fields, sets up the class regmap, and queues the * deferred boot work. */ -int sdca_class_probe(struct sdw_slave *sdw, struct sdca_class_drv *drv) +int sdca_class_probe(struct sdw_slave *sdw, + struct sdca_class_drv *drv, + const struct sdca_class_ops *ops) { struct device *dev = &sdw->dev; struct regmap_config *dev_config; @@ -169,6 +173,7 @@ int sdca_class_probe(struct sdw_slave *sdw, struct sdca_class_drv *drv) drv->dev = dev; drv->sdw = sdw; + drv->ops = ops; mutex_init(&drv->regmap_lock); mutex_init(&drv->init_lock); @@ -213,7 +218,7 @@ static int class_sdw_probe(struct sdw_slave *sdw, const struct sdw_device_id *id dev_set_drvdata(&sdw->dev, drv); - return sdca_class_probe(sdw, drv); + return sdca_class_probe(sdw, drv, NULL); } /** diff --git a/sound/soc/sdca/sdca_class_function.c b/sound/soc/sdca/sdca_class_function.c index 411e3d717bb6..d83be8474e7b 100644 --- a/sound/soc/sdca/sdca_class_function.c +++ b/sound/soc/sdca/sdca_class_function.c @@ -329,7 +329,14 @@ static int class_function_probe(struct auxiliary_device *auxdev, drv->core = core; drv->function = &sdev->function; - ret = sdca_parse_function(dev, drv->function); + if (core->ops && core->ops->populate_function) { + ret = core->ops->populate_function(core->sdw, drv->function); + } else if (drv->function->desc->node) { + ret = sdca_parse_function(dev, drv->function); + } else { + dev_err(dev, "no firmware node and no populate_function hook\n"); + return -ENOENT; + } if (ret) return ret; -- 2.53.0