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ALSA: ca0106: More constifications

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Apply const prefix to each possible place: the static tables for
registers and verbs, and the string arrays.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-01-05 15:47:45 +01:00
parent ba09f5d84e
commit 9797430972
2 changed files with 9 additions and 9 deletions
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4
sound/pci/ca0106/ca0106_main.c
View File

@ -1360,7 +1360,7 @@ static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
}
#define SPI_REG(reg, value) (((reg) << SPI_REG_SHIFT) | (value))
static unsigned int spi_dac_init[] = {
static const unsigned int spi_dac_init[] = {
SPI_REG(SPI_LDA1_REG, SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
SPI_REG(SPI_RDA1_REG, SPI_DA_BIT_0dB),
SPI_REG(SPI_PL_REG, SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
@ -1378,7 +1378,7 @@ static unsigned int spi_dac_init[] = {
SPI_REG(SPI_DACD4_REG, SPI_DACD4_BIT),
};
static unsigned int i2c_adc_init[][2] = {
static const unsigned int i2c_adc_init[][2] = {
{ 0x17, 0x00 }, /* Reset */
{ 0x07, 0x00 }, /* Timeout */
{ 0x0b, 0x22 }, /* Interface control */

14
sound/pci/ca0106/ca0106_mixer.c
View File

@ -739,7 +739,7 @@ static int rename_ctl(struct snd_card *card, const char *src, const char *dst)
static
DECLARE_TLV_DB_SCALE(snd_ca0106_master_db_scale, -6375, 25, 1);
static char *slave_vols[] = {
static const char * const slave_vols[] = {
"Analog Front Playback Volume",
"Analog Rear Playback Volume",
"Analog Center/LFE Playback Volume",
@ -752,7 +752,7 @@ static char *slave_vols[] = {
NULL
};
static char *slave_sws[] = {
static const char * const slave_sws[] = {
"Analog Front Playback Switch",
"Analog Rear Playback Switch",
"Analog Center/LFE Playback Switch",
@ -762,7 +762,7 @@ static char *slave_sws[] = {
};
static void add_slaves(struct snd_card *card,
struct snd_kcontrol *master, char **list)
struct snd_kcontrol *master, const char * const *list)
{
for (; *list; list++) {
struct snd_kcontrol *slave = ctl_find(card, *list);
@ -775,9 +775,9 @@ int snd_ca0106_mixer(struct snd_ca0106 *emu)
{
int err;
struct snd_card *card = emu->card;
char **c;
const char * const *c;
struct snd_kcontrol *vmaster;
static char *ca0106_remove_ctls[] = {
static const char * const ca0106_remove_ctls[] = {
"Master Mono Playback Switch",
"Master Mono Playback Volume",
"3D Control - Switch",
@ -801,7 +801,7 @@ int snd_ca0106_mixer(struct snd_ca0106 *emu)
"Surround Phase Inversion Playback Switch",
NULL
};
static char *ca0106_rename_ctls[] = {
static const char * const ca0106_rename_ctls[] = {
"Master Playback Switch", "Capture Switch",
"Master Playback Volume", "Capture Volume",
"Line Playback Switch", "AC97 Line Capture Switch",
@ -875,7 +875,7 @@ struct ca0106_vol_tbl {
unsigned int reg;
};
static struct ca0106_vol_tbl saved_volumes[NUM_SAVED_VOLUMES] = {
static const struct ca0106_vol_tbl saved_volumes[NUM_SAVED_VOLUMES] = {
{ CONTROL_FRONT_CHANNEL, PLAYBACK_VOLUME2 },
{ CONTROL_REAR_CHANNEL, PLAYBACK_VOLUME2 },
{ CONTROL_CENTER_LFE_CHANNEL, PLAYBACK_VOLUME2 },