From cf4ce59b3b70238352c7f1729f0f7223214828ad Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:46:19 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux add concurrent mode
---
kernel/sound/pci/hda/hda_codec.c | 287 +++++++++++++++++++++++++++++++-------------------------
1 files changed, 158 insertions(+), 129 deletions(-)
diff --git a/kernel/sound/pci/hda/hda_codec.c b/kernel/sound/pci/hda/hda_codec.c
index b43558f..fc4a64a 100644
--- a/kernel/sound/pci/hda/hda_codec.c
+++ b/kernel/sound/pci/hda/hda_codec.c
@@ -1,22 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Universal Interface for Intel High Definition Audio Codec
*
* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
- *
- *
- * This driver is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This driver is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
@@ -27,7 +13,7 @@
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <sound/core.h>
-#include "hda_codec.h"
+#include <sound/hda_codec.h>
#include <sound/asoundef.h>
#include <sound/tlv.h>
#include <sound/initval.h>
@@ -36,6 +22,7 @@
#include "hda_beep.h"
#include "hda_jack.h"
#include <sound/hda_hwdep.h>
+#include <sound/hda_component.h>
#define codec_in_pm(codec) snd_hdac_is_in_pm(&codec->core)
#define hda_codec_is_power_on(codec) snd_hdac_is_power_on(&codec->core)
@@ -101,7 +88,7 @@
struct list_head list;
int len;
hda_nid_t nid;
- hda_nid_t conns[0];
+ hda_nid_t conns[];
};
/* look up the cached results */
@@ -121,7 +108,7 @@
{
struct hda_conn_list *p;
- p = kmalloc(sizeof(*p) + len * sizeof(hda_nid_t), GFP_KERNEL);
+ p = kmalloc(struct_size(p, conns, len), GFP_KERNEL);
if (!p)
return -ENOMEM;
p->len = len;
@@ -654,8 +641,18 @@
struct hda_codec *codec =
container_of(work, struct hda_codec, jackpoll_work.work);
- snd_hda_jack_set_dirty_all(codec);
- snd_hda_jack_poll_all(codec);
+ /* for non-polling trigger: we need nothing if already powered on */
+ if (!codec->jackpoll_interval && snd_hdac_is_power_on(&codec->core))
+ return;
+
+ /* the power-up/down sequence triggers the runtime resume */
+ snd_hda_power_up_pm(codec);
+ /* update jacks manually if polling is required, too */
+ if (codec->jackpoll_interval) {
+ snd_hda_jack_set_dirty_all(codec);
+ snd_hda_jack_poll_all(codec);
+ }
+ snd_hda_power_down_pm(codec);
if (!codec->jackpoll_interval)
return;
@@ -787,17 +784,25 @@
snd_array_free(&codec->cvt_setups);
snd_array_free(&codec->spdif_out);
snd_array_free(&codec->verbs);
- codec->preset = NULL;
- codec->slave_dig_outs = NULL;
+ codec->follower_dig_outs = NULL;
codec->spdif_status_reset = 0;
snd_array_free(&codec->mixers);
snd_array_free(&codec->nids);
remove_conn_list(codec);
snd_hdac_regmap_exit(&codec->core);
+ codec->configured = 0;
}
+EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind);
static unsigned int hda_set_power_state(struct hda_codec *codec,
unsigned int power_state);
+
+/* enable/disable display power per codec */
+static void codec_display_power(struct hda_codec *codec, bool enable)
+{
+ if (codec->display_power_control)
+ snd_hdac_display_power(&codec->bus->core, codec->addr, enable);
+}
/* also called from hda_bind.c */
void snd_hda_codec_register(struct hda_codec *codec)
@@ -805,8 +810,7 @@
if (codec->registered)
return;
if (device_is_registered(hda_codec_dev(codec))) {
- snd_hda_register_beep_device(codec);
- snd_hdac_link_power(&codec->core, true);
+ codec_display_power(codec, true);
pm_runtime_enable(hda_codec_dev(codec));
/* it was powered up in snd_hda_codec_new(), now all done */
snd_hda_power_down(codec);
@@ -820,22 +824,27 @@
return 0;
}
-static int snd_hda_codec_dev_disconnect(struct snd_device *device)
-{
- struct hda_codec *codec = device->device_data;
-
- snd_hda_detach_beep_device(codec);
- return 0;
-}
-
static int snd_hda_codec_dev_free(struct snd_device *device)
{
struct hda_codec *codec = device->device_data;
codec->in_freeing = 1;
- snd_hdac_device_unregister(&codec->core);
- snd_hdac_link_power(&codec->core, false);
- put_device(hda_codec_dev(codec));
+ /*
+ * snd_hda_codec_device_new() is used by legacy HDA and ASoC driver.
+ * We can't unregister ASoC device since it will be unregistered in
+ * snd_hdac_ext_bus_device_remove().
+ */
+ if (codec->core.type == HDA_DEV_LEGACY)
+ snd_hdac_device_unregister(&codec->core);
+ codec_display_power(codec, false);
+
+ /*
+ * In the case of ASoC HD-audio bus, the device refcount is released in
+ * snd_hdac_ext_bus_device_remove() explicitly.
+ */
+ if (codec->core.type == HDA_DEV_LEGACY)
+ put_device(hda_codec_dev(codec));
+
return 0;
}
@@ -848,7 +857,13 @@
snd_hda_sysfs_clear(codec);
kfree(codec->modelname);
kfree(codec->wcaps);
- kfree(codec);
+
+ /*
+ * In the case of ASoC HD-audio, hda_codec is device managed.
+ * It will be freed when the ASoC device is removed.
+ */
+ if (codec->core.type == HDA_DEV_LEGACY)
+ kfree(codec);
}
#define DEV_NAME_LEN 31
@@ -887,6 +902,7 @@
/**
* snd_hda_codec_new - create a HDA codec
* @bus: the bus to assign
+ * @card: card for this codec
* @codec_addr: the codec address
* @codecp: the pointer to store the generated codec
*
@@ -911,9 +927,8 @@
char component[31];
hda_nid_t fg;
int err;
- static struct snd_device_ops dev_ops = {
+ static const struct snd_device_ops dev_ops = {
.dev_register = snd_hda_codec_dev_register,
- .dev_disconnect = snd_hda_codec_dev_disconnect,
.dev_free = snd_hda_codec_dev_free,
};
@@ -985,6 +1000,9 @@
if (err < 0)
goto error;
+ /* PM runtime needs to be enabled later after binding codec */
+ pm_runtime_forbid(&codec->core.dev);
+
return 0;
error:
@@ -1005,7 +1023,7 @@
hda_nid_t fg;
int err;
- err = snd_hdac_refresh_widgets(&codec->core, true);
+ err = snd_hdac_refresh_widgets(&codec->core);
if (err < 0)
return err;
@@ -1264,6 +1282,18 @@
}
EXPORT_SYMBOL_GPL(snd_hda_override_amp_caps);
+static unsigned int encode_amp(struct hda_codec *codec, hda_nid_t nid,
+ int ch, int dir, int idx)
+{
+ unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
+
+ /* enable fake mute if no h/w mute but min=mute */
+ if ((query_amp_caps(codec, nid, dir) &
+ (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
+ cmd |= AC_AMP_FAKE_MUTE;
+ return cmd;
+}
+
/**
* snd_hda_codec_amp_update - update the AMP mono value
* @codec: HD-audio codec
@@ -1279,12 +1309,8 @@
int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid,
int ch, int dir, int idx, int mask, int val)
{
- unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
+ unsigned int cmd = encode_amp(codec, nid, ch, dir, idx);
- /* enable fake mute if no h/w mute but min=mute */
- if ((query_amp_caps(codec, nid, dir) &
- (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) == AC_AMPCAP_MIN_MUTE)
- cmd |= AC_AMP_FAKE_MUTE;
return snd_hdac_regmap_update_raw(&codec->core, cmd, mask, val);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_amp_update);
@@ -1332,16 +1358,11 @@
int snd_hda_codec_amp_init(struct hda_codec *codec, hda_nid_t nid, int ch,
int dir, int idx, int mask, int val)
{
- int orig;
+ unsigned int cmd = encode_amp(codec, nid, ch, dir, idx);
if (!codec->core.regmap)
return -EINVAL;
- regcache_cache_only(codec->core.regmap, true);
- orig = snd_hda_codec_amp_read(codec, nid, ch, dir, idx);
- regcache_cache_only(codec->core.regmap, false);
- if (orig >= 0)
- return 0;
- return snd_hda_codec_amp_update(codec, nid, ch, dir, idx, mask, val);
+ return snd_hdac_regmap_update_raw_once(&codec->core, cmd, mask, val);
}
EXPORT_SYMBOL_GPL(snd_hda_codec_amp_init);
@@ -1792,11 +1813,11 @@
return 0;
}
-typedef int (*map_slave_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
+typedef int (*map_follower_func_t)(struct hda_codec *, void *, struct snd_kcontrol *);
-/* apply the function to all matching slave ctls in the mixer list */
-static int map_slaves(struct hda_codec *codec, const char * const *slaves,
- const char *suffix, map_slave_func_t func, void *data)
+/* apply the function to all matching follower ctls in the mixer list */
+static int map_followers(struct hda_codec *codec, const char * const *followers,
+ const char *suffix, map_follower_func_t func, void *data)
{
struct hda_nid_item *items;
const char * const *s;
@@ -1807,7 +1828,7 @@
struct snd_kcontrol *sctl = items[i].kctl;
if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
continue;
- for (s = slaves; *s; s++) {
+ for (s = followers; *s; s++) {
char tmpname[sizeof(sctl->id.name)];
const char *name = *s;
if (suffix) {
@@ -1826,8 +1847,8 @@
return 0;
}
-static int check_slave_present(struct hda_codec *codec,
- void *data, struct snd_kcontrol *sctl)
+static int check_follower_present(struct hda_codec *codec,
+ void *data, struct snd_kcontrol *sctl)
{
return 1;
}
@@ -1846,17 +1867,17 @@
return 0;
}
-struct slave_init_arg {
+struct follower_init_arg {
struct hda_codec *codec;
int step;
};
-/* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
-static int init_slave_0dB(struct snd_kcontrol *slave,
- struct snd_kcontrol *kctl,
- void *_arg)
+/* initialize the follower volume with 0dB via snd_ctl_apply_vmaster_followers() */
+static int init_follower_0dB(struct snd_kcontrol *follower,
+ struct snd_kcontrol *kctl,
+ void *_arg)
{
- struct slave_init_arg *arg = _arg;
+ struct follower_init_arg *arg = _arg;
int _tlv[4];
const int *tlv = NULL;
int step;
@@ -1865,7 +1886,7 @@
if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
codec_err(arg->codec,
- "Unexpected TLV callback for slave %s:%d\n",
+ "Unexpected TLV callback for follower %s:%d\n",
kctl->id.name, kctl->id.index);
return 0; /* ignore */
}
@@ -1883,7 +1904,7 @@
return 0;
if (arg->step && arg->step != step) {
codec_err(arg->codec,
- "Mismatching dB step for vmaster slave (%d!=%d)\n",
+ "Mismatching dB step for vmaster follower (%d!=%d)\n",
arg->step, step);
return 0;
}
@@ -1891,49 +1912,49 @@
arg->step = step;
val = -tlv[SNDRV_CTL_TLVO_DB_SCALE_MIN] / step;
if (val > 0) {
- put_kctl_with_value(slave, val);
+ put_kctl_with_value(follower, val);
return val;
}
return 0;
}
-/* unmute the slave via snd_ctl_apply_vmaster_slaves() */
-static int init_slave_unmute(struct snd_kcontrol *slave,
- struct snd_kcontrol *kctl,
- void *_arg)
+/* unmute the follower via snd_ctl_apply_vmaster_followers() */
+static int init_follower_unmute(struct snd_kcontrol *follower,
+ struct snd_kcontrol *kctl,
+ void *_arg)
{
- return put_kctl_with_value(slave, 1);
+ return put_kctl_with_value(follower, 1);
}
-static int add_slave(struct hda_codec *codec,
- void *data, struct snd_kcontrol *slave)
+static int add_follower(struct hda_codec *codec,
+ void *data, struct snd_kcontrol *follower)
{
- return snd_ctl_add_slave(data, slave);
+ return snd_ctl_add_follower(data, follower);
}
/**
- * __snd_hda_add_vmaster - create a virtual master control and add slaves
+ * __snd_hda_add_vmaster - create a virtual master control and add followers
* @codec: HD-audio codec
* @name: vmaster control name
* @tlv: TLV data (optional)
- * @slaves: slave control names (optional)
- * @suffix: suffix string to each slave name (optional)
- * @init_slave_vol: initialize slaves to unmute/0dB
+ * @followers: follower control names (optional)
+ * @suffix: suffix string to each follower name (optional)
+ * @init_follower_vol: initialize followers to unmute/0dB
* @ctl_ret: store the vmaster kcontrol in return
*
* Create a virtual master control with the given name. The TLV data
* must be either NULL or a valid data.
*
- * @slaves is a NULL-terminated array of strings, each of which is a
- * slave control name. All controls with these names are assigned to
+ * @followers is a NULL-terminated array of strings, each of which is a
+ * follower control name. All controls with these names are assigned to
* the new virtual master control.
*
* This function returns zero if successful or a negative error code.
*/
int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
- unsigned int *tlv, const char * const *slaves,
- const char *suffix, bool init_slave_vol,
+ unsigned int *tlv, const char * const *followers,
+ const char *suffix, bool init_follower_vol,
struct snd_kcontrol **ctl_ret)
{
struct snd_kcontrol *kctl;
@@ -1942,9 +1963,9 @@
if (ctl_ret)
*ctl_ret = NULL;
- err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
+ err = map_followers(codec, followers, suffix, check_follower_present, NULL);
if (err != 1) {
- codec_dbg(codec, "No slave found for %s\n", name);
+ codec_dbg(codec, "No follower found for %s\n", name);
return 0;
}
kctl = snd_ctl_make_virtual_master(name, tlv);
@@ -1954,20 +1975,20 @@
if (err < 0)
return err;
- err = map_slaves(codec, slaves, suffix, add_slave, kctl);
+ err = map_followers(codec, followers, suffix, add_follower, kctl);
if (err < 0)
return err;
/* init with master mute & zero volume */
put_kctl_with_value(kctl, 0);
- if (init_slave_vol) {
- struct slave_init_arg arg = {
+ if (init_follower_vol) {
+ struct follower_init_arg arg = {
.codec = codec,
.step = 0,
};
- snd_ctl_apply_vmaster_slaves(kctl,
- tlv ? init_slave_0dB : init_slave_unmute,
- &arg);
+ snd_ctl_apply_vmaster_followers(kctl,
+ tlv ? init_follower_0dB : init_follower_unmute,
+ &arg);
}
if (ctl_ret)
@@ -2270,7 +2291,7 @@
return sbits;
}
-/* set digital convert verbs both for the given NID and its slaves */
+/* set digital convert verbs both for the given NID and its followers */
static void set_dig_out(struct hda_codec *codec, hda_nid_t nid,
int mask, int val)
{
@@ -2278,7 +2299,7 @@
snd_hdac_regmap_update(&codec->core, nid, AC_VERB_SET_DIGI_CONVERT_1,
mask, val);
- d = codec->slave_dig_outs;
+ d = codec->follower_dig_outs;
if (!d)
return;
for (; *d; d++)
@@ -2387,7 +2408,7 @@
return change;
}
-static struct snd_kcontrol_new dig_mixes[] = {
+static const struct snd_kcontrol_new dig_mixes[] = {
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -2437,7 +2458,7 @@
{
int err;
struct snd_kcontrol *kctl;
- struct snd_kcontrol_new *dig_mix;
+ const struct snd_kcontrol_new *dig_mix;
int idx = 0;
int val = 0;
const int spdif_index = 16;
@@ -2655,7 +2676,7 @@
return 0;
}
-static struct snd_kcontrol_new dig_in_ctls[] = {
+static const struct snd_kcontrol_new dig_in_ctls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, SWITCH),
@@ -2687,7 +2708,7 @@
{
int err;
struct snd_kcontrol *kctl;
- struct snd_kcontrol_new *dig_mix;
+ const struct snd_kcontrol_new *dig_mix;
int idx;
idx = find_empty_mixer_ctl_idx(codec, "IEC958 Capture Switch", 0);
@@ -2905,8 +2926,7 @@
else {
if (codec->patch_ops.init)
codec->patch_ops.init(codec);
- if (codec->core.regmap)
- regcache_sync(codec->core.regmap);
+ snd_hda_regmap_sync(codec);
}
if (codec->jackpoll_interval)
@@ -2920,18 +2940,19 @@
static int hda_codec_runtime_suspend(struct device *dev)
{
struct hda_codec *codec = dev_to_hda_codec(dev);
- struct hda_pcm *pcm;
unsigned int state;
+ /* Nothing to do if card registration fails and the component driver never probes */
+ if (!codec->card)
+ return 0;
+
cancel_delayed_work_sync(&codec->jackpoll_work);
- list_for_each_entry(pcm, &codec->pcm_list_head, list)
- snd_pcm_suspend_all(pcm->pcm);
state = hda_call_codec_suspend(codec);
if (codec->link_down_at_suspend ||
(codec_has_clkstop(codec) && codec_has_epss(codec) &&
(state & AC_PWRST_CLK_STOP_OK)))
snd_hdac_codec_link_down(&codec->core);
- snd_hdac_link_power(&codec->core, false);
+ codec_display_power(codec, false);
return 0;
}
@@ -2939,31 +2960,37 @@
{
struct hda_codec *codec = dev_to_hda_codec(dev);
- snd_hdac_link_power(&codec->core, true);
+ /* Nothing to do if card registration fails and the component driver never probes */
+ if (!codec->card)
+ return 0;
+
+ codec_display_power(codec, true);
snd_hdac_codec_link_up(&codec->core);
hda_call_codec_resume(codec);
pm_runtime_mark_last_busy(dev);
return 0;
}
+
#endif /* CONFIG_PM */
#ifdef CONFIG_PM_SLEEP
-static int hda_codec_force_resume(struct device *dev)
+static int hda_codec_pm_prepare(struct device *dev)
+{
+ dev->power.power_state = PMSG_SUSPEND;
+ return pm_runtime_suspended(dev);
+}
+
+static void hda_codec_pm_complete(struct device *dev)
{
struct hda_codec *codec = dev_to_hda_codec(dev);
- bool forced_resume = !codec->relaxed_resume;
- int ret;
- /* The get/put pair below enforces the runtime resume even if the
- * device hasn't been used at suspend time. This trick is needed to
- * update the jack state change during the sleep.
- */
- if (forced_resume)
- pm_runtime_get_noresume(dev);
- ret = pm_runtime_force_resume(dev);
- if (forced_resume)
- pm_runtime_put(dev);
- return ret;
+ /* If no other pm-functions are called between prepare() and complete() */
+ if (dev->power.power_state.event == PM_EVENT_SUSPEND)
+ dev->power.power_state = PMSG_RESUME;
+
+ if (pm_runtime_suspended(dev) && (codec->jackpoll_interval ||
+ hda_codec_need_resume(codec) || codec->forced_resume))
+ pm_request_resume(dev);
}
static int hda_codec_pm_suspend(struct device *dev)
@@ -2975,7 +3002,7 @@
static int hda_codec_pm_resume(struct device *dev)
{
dev->power.power_state = PMSG_RESUME;
- return hda_codec_force_resume(dev);
+ return pm_runtime_force_resume(dev);
}
static int hda_codec_pm_freeze(struct device *dev)
@@ -2987,19 +3014,21 @@
static int hda_codec_pm_thaw(struct device *dev)
{
dev->power.power_state = PMSG_THAW;
- return hda_codec_force_resume(dev);
+ return pm_runtime_force_resume(dev);
}
static int hda_codec_pm_restore(struct device *dev)
{
dev->power.power_state = PMSG_RESTORE;
- return hda_codec_force_resume(dev);
+ return pm_runtime_force_resume(dev);
}
#endif /* CONFIG_PM_SLEEP */
/* referred in hda_bind.c */
const struct dev_pm_ops hda_codec_driver_pm = {
#ifdef CONFIG_PM_SLEEP
+ .prepare = hda_codec_pm_prepare,
+ .complete = hda_codec_pm_complete,
.suspend = hda_codec_pm_suspend,
.resume = hda_codec_pm_resume,
.freeze = hda_codec_pm_freeze,
@@ -3172,7 +3201,7 @@
EXPORT_SYMBOL_GPL(snd_hda_codec_prepare);
/**
- * snd_hda_codec_cleanup - Prepare a stream
+ * snd_hda_codec_cleanup - Clean up stream resources
* @codec: the HDA codec
* @hinfo: PCM information
* @substream: PCM substream
@@ -3204,7 +3233,7 @@
/* assigned to static slots up to dev#10; if more needed, assign
* the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
*/
- static int audio_idx[HDA_PCM_NTYPES][5] = {
+ static const int audio_idx[HDA_PCM_NTYPES][5] = {
[HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
[HDA_PCM_TYPE_SPDIF] = { 1, -1 },
[HDA_PCM_TYPE_HDMI] = { 3, 7, 8, 9, -1 },
@@ -3574,9 +3603,9 @@
spdif->ctls & ~AC_DIG1_ENABLE & 0xff,
-1);
snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
- if (codec->slave_dig_outs) {
+ if (codec->follower_dig_outs) {
const hda_nid_t *d;
- for (d = codec->slave_dig_outs; *d; d++)
+ for (d = codec->follower_dig_outs; *d; d++)
snd_hda_codec_setup_stream(codec, *d, stream_tag, 0,
format);
}
@@ -3589,9 +3618,9 @@
static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
{
snd_hda_codec_cleanup_stream(codec, nid);
- if (codec->slave_dig_outs) {
+ if (codec->follower_dig_outs) {
const hda_nid_t *d;
- for (d = codec->slave_dig_outs; *d; d++)
+ for (d = codec->follower_dig_outs; *d; d++)
snd_hda_codec_cleanup_stream(codec, *d);
}
}
@@ -3673,7 +3702,7 @@
* @hinfo: PCM information to assign
*
* Open analog outputs and set up the hw-constraints.
- * If the digital outputs can be opened as slave, open the digital
+ * If the digital outputs can be opened as follower, open the digital
* outputs, too.
*/
int snd_hda_multi_out_analog_open(struct hda_codec *codec,
@@ -3872,7 +3901,7 @@
unsigned int snd_hda_correct_pin_ctl(struct hda_codec *codec,
hda_nid_t pin, unsigned int val)
{
- static unsigned int cap_lists[][2] = {
+ static const unsigned int cap_lists[][2] = {
{ AC_PINCTL_VREF_100, AC_PINCAP_VREF_100 },
{ AC_PINCTL_VREF_80, AC_PINCAP_VREF_80 },
{ AC_PINCTL_VREF_50, AC_PINCAP_VREF_50 },
@@ -4017,7 +4046,7 @@
*/
void snd_print_pcm_bits(int pcm, char *buf, int buflen)
{
- static unsigned int bits[] = { 8, 16, 20, 24, 32 };
+ static const unsigned int bits[] = { 8, 16, 20, 24, 32 };
int i, j;
for (i = 0, j = 0; i < ARRAY_SIZE(bits); i++)
--
Gitblit v1.6.2