ASoC: cs42l52: Use case range at appropriate place

The readable registers are in continuous range: 0x01 ~ 0x34.
Use case range syntax makes the code shorter with better readability when
we have a large number of continuous switch cases.
No functional change with this patch.

Signed-off-by: Axel Lin <[e-mail]>
Acked-by: Brian Austin <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/codecs/cs42l52.c

···
 static bool cs42l52_readable_register(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
-	case CS42L52_CHIP:
-	case CS42L52_PWRCTL1:
-	case CS42L52_PWRCTL2:
-	case CS42L52_PWRCTL3:
-	case CS42L52_CLK_CTL:
-	case CS42L52_IFACE_CTL1:
-	case CS42L52_IFACE_CTL2:
-	case CS42L52_ADC_PGA_A:
-	case CS42L52_ADC_PGA_B:
-	case CS42L52_ANALOG_HPF_CTL:
-	case CS42L52_ADC_HPF_FREQ:
-	case CS42L52_ADC_MISC_CTL:
-	case CS42L52_PB_CTL1:
-	case CS42L52_MISC_CTL:
-	case CS42L52_PB_CTL2:
-	case CS42L52_MICA_CTL:
-	case CS42L52_MICB_CTL:
-	case CS42L52_PGAA_CTL:
-	case CS42L52_PGAB_CTL:
-	case CS42L52_PASSTHRUA_VOL:
-	case CS42L52_PASSTHRUB_VOL:
-	case CS42L52_ADCA_VOL:
-	case CS42L52_ADCB_VOL:
-	case CS42L52_ADCA_MIXER_VOL:
-	case CS42L52_ADCB_MIXER_VOL:
-	case CS42L52_PCMA_MIXER_VOL:
-	case CS42L52_PCMB_MIXER_VOL:
-	case CS42L52_BEEP_FREQ:
-	case CS42L52_BEEP_VOL:
-	case CS42L52_BEEP_TONE_CTL:
-	case CS42L52_TONE_CTL:
-	case CS42L52_MASTERA_VOL:
-	case CS42L52_MASTERB_VOL:
-	case CS42L52_HPA_VOL:
-	case CS42L52_HPB_VOL:
-	case CS42L52_SPKA_VOL:
-	case CS42L52_SPKB_VOL:
-	case CS42L52_ADC_PCM_MIXER:
-	case CS42L52_LIMITER_CTL1:
-	case CS42L52_LIMITER_CTL2:
-	case CS42L52_LIMITER_AT_RATE:
-	case CS42L52_ALC_CTL:
-	case CS42L52_ALC_RATE:
-	case CS42L52_ALC_THRESHOLD:
-	case CS42L52_NOISE_GATE_CTL:
-	case CS42L52_CLK_STATUS:
-	case CS42L52_BATT_COMPEN:
-	case CS42L52_BATT_LEVEL:
-	case CS42L52_SPK_STATUS:
-	case CS42L52_TEM_CTL:
-	case CS42L52_THE_FOLDBACK:
-	case CS42L52_CHARGE_PUMP:
+	case CS42L52_CHIP ... CS42L52_CHARGE_PUMP:
 		return true;
 	default:
 		return false;