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ALSA: ca0106: More constifications
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>
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@ -1360,7 +1360,7 @@ static int snd_ca0106_pcm(struct snd_ca0106 *emu, int device)
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}
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#define SPI_REG(reg, value) (((reg) << SPI_REG_SHIFT) | (value))
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static unsigned int spi_dac_init[] = {
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static const unsigned int spi_dac_init[] = {
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SPI_REG(SPI_LDA1_REG, SPI_DA_BIT_0dB), /* 0dB dig. attenuation */
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SPI_REG(SPI_RDA1_REG, SPI_DA_BIT_0dB),
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SPI_REG(SPI_PL_REG, SPI_PL_BIT_L_L | SPI_PL_BIT_R_R | SPI_IZD_BIT),
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@ -1378,7 +1378,7 @@ static unsigned int spi_dac_init[] = {
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SPI_REG(SPI_DACD4_REG, SPI_DACD4_BIT),
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};
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static unsigned int i2c_adc_init[][2] = {
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static const unsigned int i2c_adc_init[][2] = {
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{ 0x17, 0x00 }, /* Reset */
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{ 0x07, 0x00 }, /* Timeout */
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{ 0x0b, 0x22 }, /* Interface control */
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@ -739,7 +739,7 @@ static int rename_ctl(struct snd_card *card, const char *src, const char *dst)
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static
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DECLARE_TLV_DB_SCALE(snd_ca0106_master_db_scale, -6375, 25, 1);
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static char *slave_vols[] = {
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static const char * const slave_vols[] = {
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"Analog Front Playback Volume",
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"Analog Rear Playback Volume",
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"Analog Center/LFE Playback Volume",
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@ -752,7 +752,7 @@ static char *slave_vols[] = {
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NULL
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};
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static char *slave_sws[] = {
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static const char * const slave_sws[] = {
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"Analog Front Playback Switch",
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"Analog Rear Playback Switch",
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"Analog Center/LFE Playback Switch",
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@ -762,7 +762,7 @@ static char *slave_sws[] = {
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};
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static void add_slaves(struct snd_card *card,
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struct snd_kcontrol *master, char **list)
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struct snd_kcontrol *master, const char * const *list)
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{
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for (; *list; list++) {
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struct snd_kcontrol *slave = ctl_find(card, *list);
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@ -775,9 +775,9 @@ int snd_ca0106_mixer(struct snd_ca0106 *emu)
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{
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int err;
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struct snd_card *card = emu->card;
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char **c;
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const char * const *c;
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struct snd_kcontrol *vmaster;
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static char *ca0106_remove_ctls[] = {
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static const char * const ca0106_remove_ctls[] = {
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"Master Mono Playback Switch",
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"Master Mono Playback Volume",
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"3D Control - Switch",
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@ -801,7 +801,7 @@ int snd_ca0106_mixer(struct snd_ca0106 *emu)
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"Surround Phase Inversion Playback Switch",
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NULL
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};
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static char *ca0106_rename_ctls[] = {
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static const char * const ca0106_rename_ctls[] = {
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"Master Playback Switch", "Capture Switch",
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"Master Playback Volume", "Capture Volume",
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"Line Playback Switch", "AC97 Line Capture Switch",
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@ -875,7 +875,7 @@ struct ca0106_vol_tbl {
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unsigned int reg;
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};
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static struct ca0106_vol_tbl saved_volumes[NUM_SAVED_VOLUMES] = {
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static const struct ca0106_vol_tbl saved_volumes[NUM_SAVED_VOLUMES] = {
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{ CONTROL_FRONT_CHANNEL, PLAYBACK_VOLUME2 },
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{ CONTROL_REAR_CHANNEL, PLAYBACK_VOLUME2 },
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{ CONTROL_CENTER_LFE_CHANNEL, PLAYBACK_VOLUME2 },
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