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Date: Tue, 19 May 2020 01:43:18 +0800
From: Bard Liao <yung-chuan.liao@...ux.intel.com>
To: alsa-devel@...a-project.org, vkoul@...nel.org
Cc: vinod.koul@...aro.org, linux-kernel@...r.kernel.org, tiwai@...e.de,
broonie@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
srinivas.kandagatla@...aro.org, rander.wang@...ux.intel.com,
ranjani.sridharan@...ux.intel.com, hui.wang@...onical.com,
pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
slawomir.blauciak@...el.com, mengdong.lin@...el.com,
bard.liao@...el.com
Subject: [PATCH v2 1/5] soundwire: bus: rename sdw_bus_master_add/delete, add arguments
From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
In preparation for future extensions, rename functions to use
sdw_bus_master prefix and add a parent and fwnode argument to
sdw_bus_master_add to help with device registration in follow-up
patches.
No functionality change, just renames and additional arguments.
The Intel code is currently unused, the two additional arguments are
only needed for compilation.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
---
Documentation/driver-api/soundwire/summary.rst | 7 ++++---
drivers/soundwire/bus.c | 15 +++++++++------
drivers/soundwire/intel.c | 8 ++++----
drivers/soundwire/qcom.c | 6 +++---
include/linux/soundwire/sdw.h | 5 +++--
5 files changed, 23 insertions(+), 18 deletions(-)
diff --git a/Documentation/driver-api/soundwire/summary.rst b/Documentation/driver-api/soundwire/summary.rst
index 8193125a2bfb..01dcb954f6d7 100644
--- a/Documentation/driver-api/soundwire/summary.rst
+++ b/Documentation/driver-api/soundwire/summary.rst
@@ -101,10 +101,11 @@ Following is the Bus API to register the SoundWire Bus:
.. code-block:: c
- int sdw_add_bus_master(struct sdw_bus *bus)
+ int sdw_bus_master_add(struct sdw_bus *bus,
+ struct device *parent,
+ struct fwnode_handle)
{
- if (!bus->dev)
- return -ENODEV;
+ sdw_master_device_add(bus, parent, fwnode);
mutex_init(&bus->lock);
INIT_LIST_HEAD(&bus->slaves);
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 32de017f08d5..24064dbd74fa 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -10,13 +10,16 @@
#include "bus.h"
/**
- * sdw_add_bus_master() - add a bus Master instance
+ * sdw_bus_master_add() - add a bus Master instance
* @bus: bus instance
+ * @parent: parent device
+ * @fwnode: firmware node handle
*
* Initializes the bus instance, read properties and create child
* devices.
*/
-int sdw_add_bus_master(struct sdw_bus *bus)
+int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,
+ struct fwnode_handle *fwnode)
{
struct sdw_master_prop *prop = NULL;
int ret;
@@ -107,7 +110,7 @@ int sdw_add_bus_master(struct sdw_bus *bus)
return 0;
}
-EXPORT_SYMBOL(sdw_add_bus_master);
+EXPORT_SYMBOL(sdw_bus_master_add);
static int sdw_delete_slave(struct device *dev, void *data)
{
@@ -131,18 +134,18 @@ static int sdw_delete_slave(struct device *dev, void *data)
}
/**
- * sdw_delete_bus_master() - delete the bus master instance
+ * sdw_bus_master_delete() - delete the bus master instance
* @bus: bus to be deleted
*
* Remove the instance, delete the child devices.
*/
-void sdw_delete_bus_master(struct sdw_bus *bus)
+void sdw_bus_master_delete(struct sdw_bus *bus)
{
device_for_each_child(bus->dev, NULL, sdw_delete_slave);
sdw_bus_debugfs_exit(bus);
}
-EXPORT_SYMBOL(sdw_delete_bus_master);
+EXPORT_SYMBOL(sdw_bus_master_delete);
/*
* SDW IO Calls
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 3c83e76c6bf9..210459390046 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -1110,9 +1110,9 @@ static int intel_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, sdw);
- ret = sdw_add_bus_master(&sdw->cdns.bus);
+ ret = sdw_bus_master_add(&sdw->cdns.bus, &pdev->dev, pdev->dev.fwnode);
if (ret) {
- dev_err(&pdev->dev, "sdw_add_bus_master fail: %d\n", ret);
+ dev_err(&pdev->dev, "sdw_bus_master_add fail: %d\n", ret);
return ret;
}
@@ -1173,7 +1173,7 @@ static int intel_probe(struct platform_device *pdev)
sdw_cdns_enable_interrupt(&sdw->cdns, false);
free_irq(sdw->link_res->irq, sdw);
err_init:
- sdw_delete_bus_master(&sdw->cdns.bus);
+ sdw_bus_master_delete(&sdw->cdns.bus);
return ret;
}
@@ -1189,7 +1189,7 @@ static int intel_remove(struct platform_device *pdev)
free_irq(sdw->link_res->irq, sdw);
snd_soc_unregister_component(sdw->cdns.dev);
}
- sdw_delete_bus_master(&sdw->cdns.bus);
+ sdw_bus_master_delete(&sdw->cdns.bus);
return 0;
}
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index e08a17c13f92..401811d6627e 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -821,7 +821,7 @@ static int qcom_swrm_probe(struct platform_device *pdev)
goto err_clk;
}
- ret = sdw_add_bus_master(&ctrl->bus);
+ ret = sdw_bus_master_add(&ctrl->bus, dev, dev->fwnode);
if (ret) {
dev_err(dev, "Failed to register Soundwire controller (%d)\n",
ret);
@@ -840,7 +840,7 @@ static int qcom_swrm_probe(struct platform_device *pdev)
return 0;
err_master_add:
- sdw_delete_bus_master(&ctrl->bus);
+ sdw_bus_master_delete(&ctrl->bus);
err_clk:
clk_disable_unprepare(ctrl->hclk);
err_init:
@@ -851,7 +851,7 @@ static int qcom_swrm_remove(struct platform_device *pdev)
{
struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(&pdev->dev);
- sdw_delete_bus_master(&ctrl->bus);
+ sdw_bus_master_delete(&ctrl->bus);
clk_disable_unprepare(ctrl->hclk);
return 0;
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 00f5826092e3..2003e8c55538 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -832,8 +832,9 @@ struct sdw_bus {
bool multi_link;
};
-int sdw_add_bus_master(struct sdw_bus *bus);
-void sdw_delete_bus_master(struct sdw_bus *bus);
+int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,
+ struct fwnode_handle *fwnode);
+void sdw_bus_master_delete(struct sdw_bus *bus);
/**
* sdw_port_config: Master or Slave Port configuration
--
2.17.1
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