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ASoC/soundwire: intel: pass hdac_bus pointer for link management

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The hdac_bus pointer is used to access the extended link information
and handle power management. Pass it from the SOF driver down to the
auxiliary devices.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230515071042.2038-7-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2023-05-15 15:10:22 +08:00 committed by Vinod Koul
parent e40e0e11fe
commit 881cf1e9df
4 changed files with 11 additions and 0 deletions
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4
drivers/soundwire/intel.h
View file

@ -4,6 +4,8 @@
#ifndef __SDW_INTEL_LOCAL_H
#define __SDW_INTEL_LOCAL_H
struct hdac_bus;
/**
* struct sdw_intel_link_res - Soundwire Intel link resource structure,
* typically populated by the controller driver.
@ -23,6 +25,7 @@
* @link_mask: global mask needed for power-up/down sequences
* @cdns: Cadence master descriptor
* @list: used to walk-through all masters exposed by the same controller
* @hbus: hdac_bus pointer, needed for power management
*/
struct sdw_intel_link_res {
const struct sdw_intel_hw_ops *hw_ops;
@ -42,6 +45,7 @@ struct sdw_intel_link_res {
u32 link_mask;
struct sdw_cdns *cdns;
struct list_head list;
struct hdac_bus *hbus;
};
struct sdw_intel {

2
drivers/soundwire/intel_init.c
View file

@ -84,6 +84,8 @@ static struct sdw_intel_link_dev *intel_link_dev_register(struct sdw_intel_res *
link->shim_mask = &ctx->shim_mask;
link->link_mask = ctx->link_mask;
link->hbus = res->hbus;
/* now follow the two-step init/add sequence */
ret = auxiliary_device_init(auxdev);
if (ret < 0) {

4
include/linux/soundwire/sdw_intel.h
View file

@ -269,6 +269,8 @@ struct sdw_intel_slave_id {
struct sdw_slave_id id;
};
struct hdac_bus;
/**
* struct sdw_intel_ctx - context allocated by the controller
* driver probe
@ -324,6 +326,7 @@ struct sdw_intel_ctx {
* @shim_base: sdw shim base.
* @alh_base: sdw alh base.
* @ext: extended HDaudio link support
* @hbus: hdac_bus pointer, needed for power management
*/
struct sdw_intel_res {
const struct sdw_intel_hw_ops *hw_ops;
@ -339,6 +342,7 @@ struct sdw_intel_res {
u32 shim_base;
u32 alh_base;
bool ext;
struct hdac_bus *hbus;
};
/*

1
sound/soc/sof/intel/hda.c
View file

@ -189,6 +189,7 @@ static int hda_sdw_probe(struct snd_sof_dev *sdev)
res.ops = &sdw_callback;
res.dev = sdev->dev;
res.clock_stop_quirks = sdw_clock_stop_quirks;
res.hbus = sof_to_bus(sdev);
/*
* ops and arg fields are not populated for now,