linux-kernel - [RFC PATCH 9/9] soundwire: add device driver to sdw_md

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Date:   Mon, 16 Sep 2019 16:23:42 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, tiwai@...e.de, broonie@...nel.org,
        vkoul@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org, slawomir.blauciak@...el.com,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>
Subject: [RFC PATCH 9/9] soundwire: add device driver to sdw_md_driver

From: Bard Liao <yung-chuan.liao@...ux.intel.com>

Setting an device driver is necessary for ASoC to register DAI
components.

Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
---
 drivers/soundwire/intel.c     | 4 ++++
 drivers/soundwire/master.c    | 2 ++
 include/linux/soundwire/sdw.h | 1 +
 3 files changed, 7 insertions(+)

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 267e0fad7494..c3dba6cf7730 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -1042,6 +1042,10 @@ static int intel_master_remove(struct sdw_master_device *md)
 }
 
 struct sdw_md_driver intel_sdw_driver = {
+	.driver = {
+		.name = "intel-sdw",
+		.owner = THIS_MODULE,
+	},
 	.probe = intel_master_probe,
 	.startup = intel_master_startup,
 	.remove = intel_master_remove,
diff --git a/drivers/soundwire/master.c b/drivers/soundwire/master.c
index d9d09759b9c3..adf11d9f5469 100644
--- a/drivers/soundwire/master.c
+++ b/drivers/soundwire/master.c
@@ -73,6 +73,8 @@ struct sdw_master_device *sdw_md_add(struct sdw_md_driver *driver,
 		put_device(&md->dev);
 	}
 
+	md->dev.driver = &driver->driver;
+
 	return md;
 }
 EXPORT_SYMBOL(sdw_md_add);
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 6289924b0336..e22bc037c196 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -606,6 +606,7 @@ struct sdw_md_driver {
 	 */
 	int (*autonomous_clock_stop_enable)(struct sdw_master_device *md,
 					    bool state);
+	struct device_driver driver;
 };
 
 #define SDW_SLAVE_ENTRY(_mfg_id, _part_id, _drv_data) \
-- 
2.20.1