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i915/snd_hdac: I915 subcomponent for the snd_hdac 

Since we need multiple components for I915 for different purposes
(Audio & Mei_hdcp), we adopt the subcomponents methodology introduced
by the previous patch (mentioned below).

	Author: Daniel Vetter <daniel.vetter@ffwll.ch>
	Date:   Mon Jan 28 17:08:20 2019 +0530

	    components: multiple components for a device

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by-by: Ramalingam C <ramalinagm.c@intel.com> (commit message)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (code)
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Russell King <rmk+kernel@arm.linux.org.uk>
cc: Rafael J. Wysocki <rafael@kernel.org>
cc: Jaroslav Kysela <perex@perex.cz>
cc: Takashi Iwai <tiwai@suse.com>
cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
cc: Jani Nikula <jani.nikula@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190207232759.14553-4-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2019-02-08 00:27:59 +01:00
parent 3521ee994b
commit 8857c7d065
5 changed files with 16 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_audio.c
View File

@ -984,7 +984,9 @@ void i915_audio_component_init(struct drm_i915_private *dev_priv)
{
int ret;
ret = component_add(dev_priv->drm.dev, &i915_audio_component_bind_ops);
ret = component_add_typed(dev_priv->drm.dev,
&i915_audio_component_bind_ops,
I915_COMPONENT_AUDIO);
if (ret < 0) {
DRM_ERROR("failed to add audio component (%d)\n", ret);
/* continue with reduced functionality */

4
include/drm/i915_component.h
View File

@ -26,6 +26,10 @@
#include "drm_audio_component.h"
enum i915_component_type {
I915_COMPONENT_AUDIO = 1,
};
/* MAX_PORT is the number of port
* It must be sync with I915_MAX_PORTS defined i915_drv.h
*/

5
include/sound/hda_component.h
View File

@ -20,7 +20,7 @@ int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
bool *audio_enabled, char *buffer, int max_bytes);
int snd_hdac_acomp_init(struct hdac_bus *bus,
const struct drm_audio_component_audio_ops *aops,
int (*match_master)(struct device *, void *),
int (*match_master)(struct device *, int, void *),
size_t extra_size);
int snd_hdac_acomp_exit(struct hdac_bus *bus);
int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
@ -47,7 +47,8 @@ static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t ni
}
static inline int snd_hdac_acomp_init(struct hdac_bus *bus,
const struct drm_audio_component_audio_ops *aops,
int (*match_master)(struct device *, void *),
int (*match_master)(struct device *,
int, void *),
size_t extra_size)
{
return -ENODEV;

4
sound/hda/hdac_component.c
View File

@ -269,7 +269,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_acomp_register_notifier);
*/
int snd_hdac_acomp_init(struct hdac_bus *bus,
const struct drm_audio_component_audio_ops *aops,
int (*match_master)(struct device *, void *),
int (*match_master)(struct device *, int, void *),
size_t extra_size)
{
struct component_match *match = NULL;
@ -288,7 +288,7 @@ int snd_hdac_acomp_init(struct hdac_bus *bus,
bus->audio_component = acomp;
devres_add(dev, acomp);
component_match_add(dev, &match, match_master, bus);
component_match_add_typed(dev, &match, match_master, bus);
ret = component_master_add_with_match(dev, &hdac_component_master_ops,
match);
if (ret < 0)

6
sound/hda/hdac_i915.c
View File

@ -82,9 +82,11 @@ void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
}
EXPORT_SYMBOL_GPL(snd_hdac_i915_set_bclk);
static int i915_component_master_match(struct device *dev, void *data)
static int i915_component_master_match(struct device *dev, int subcomponent,
void *data)
{
return !strcmp(dev->driver->name, "i915");
return !strcmp(dev->driver->name, "i915") &&
subcomponent == I915_COMPONENT_AUDIO;
}
/* check whether intel graphics is present */