[4/4] ASoC: cs42l73: Use case range at appropriate place

Commit Message

Axel Lin Aug. 12, 2015, 3:10 a.m. UTC

The readable registers are in continuous ranges: 0x01 ~ 0x03, 0x05 ~ 0x5f.
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]>
---
 sound/soc/codecs/cs42l73.c | 96 +---------------------------------------------
 1 file changed, 2 insertions(+), 94 deletions(-)

Comments

Austin, Brian Aug. 12, 2015, 12:17 p.m. UTC | #1

On Tue, 11 Aug 2015, Axel Lin wrote:

> The readable registers are in continuous ranges: 0x01 ~ 0x03, 0x05 ~ 0x5f.
> 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]>
That looks so much nicer!
Thanks Axel

Acked-by: Brian Austin <[e-mail]>

Patch

diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index 427d6cf..42a8fd4 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -153,100 +153,8 @@  static bool cs42l73_volatile_register(struct device *dev, unsigned int reg)
 static bool cs42l73_readable_register(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
-	case CS42L73_DEVID_AB:
-	case CS42L73_DEVID_CD:
-	case CS42L73_DEVID_E:
-	case CS42L73_REVID:
-	case CS42L73_PWRCTL1:
-	case CS42L73_PWRCTL2:
-	case CS42L73_PWRCTL3:
-	case CS42L73_CPFCHC:
-	case CS42L73_OLMBMSDC:
-	case CS42L73_DMMCC:
-	case CS42L73_XSPC:
-	case CS42L73_XSPMMCC:
-	case CS42L73_ASPC:
-	case CS42L73_ASPMMCC:
-	case CS42L73_VSPC:
-	case CS42L73_VSPMMCC:
-	case CS42L73_VXSPFS:
-	case CS42L73_MIOPC:
-	case CS42L73_ADCIPC:
-	case CS42L73_MICAPREPGAAVOL:
-	case CS42L73_MICBPREPGABVOL:
-	case CS42L73_IPADVOL:
-	case CS42L73_IPBDVOL:
-	case CS42L73_PBDC:
-	case CS42L73_HLADVOL:
-	case CS42L73_HLBDVOL:
-	case CS42L73_SPKDVOL:
-	case CS42L73_ESLDVOL:
-	case CS42L73_HPAAVOL:
-	case CS42L73_HPBAVOL:
-	case CS42L73_LOAAVOL:
-	case CS42L73_LOBAVOL:
-	case CS42L73_STRINV:
-	case CS42L73_XSPINV:
-	case CS42L73_ASPINV:
-	case CS42L73_VSPINV:
-	case CS42L73_LIMARATEHL:
-	case CS42L73_LIMRRATEHL:
-	case CS42L73_LMAXHL:
-	case CS42L73_LIMARATESPK:
-	case CS42L73_LIMRRATESPK:
-	case CS42L73_LMAXSPK:
-	case CS42L73_LIMARATEESL:
-	case CS42L73_LIMRRATEESL:
-	case CS42L73_LMAXESL:
-	case CS42L73_ALCARATE:
-	case CS42L73_ALCRRATE:
-	case CS42L73_ALCMINMAX:
-	case CS42L73_NGCAB:
-	case CS42L73_ALCNGMC:
-	case CS42L73_MIXERCTL:
-	case CS42L73_HLAIPAA:
-	case CS42L73_HLBIPBA:
-	case CS42L73_HLAXSPAA:
-	case CS42L73_HLBXSPBA:
-	case CS42L73_HLAASPAA:
-	case CS42L73_HLBASPBA:
-	case CS42L73_HLAVSPMA:
-	case CS42L73_HLBVSPMA:
-	case CS42L73_XSPAIPAA:
-	case CS42L73_XSPBIPBA:
-	case CS42L73_XSPAXSPAA:
-	case CS42L73_XSPBXSPBA:
-	case CS42L73_XSPAASPAA:
-	case CS42L73_XSPAASPBA:
-	case CS42L73_XSPAVSPMA:
-	case CS42L73_XSPBVSPMA:
-	case CS42L73_ASPAIPAA:
-	case CS42L73_ASPBIPBA:
-	case CS42L73_ASPAXSPAA:
-	case CS42L73_ASPBXSPBA:
-	case CS42L73_ASPAASPAA:
-	case CS42L73_ASPBASPBA:
-	case CS42L73_ASPAVSPMA:
-	case CS42L73_ASPBVSPMA:
-	case CS42L73_VSPAIPAA:
-	case CS42L73_VSPBIPBA:
-	case CS42L73_VSPAXSPAA:
-	case CS42L73_VSPBXSPBA:
-	case CS42L73_VSPAASPAA:
-	case CS42L73_VSPBASPBA:
-	case CS42L73_VSPAVSPMA:
-	case CS42L73_VSPBVSPMA:
-	case CS42L73_MMIXCTL:
-	case CS42L73_SPKMIPMA:
-	case CS42L73_SPKMXSPA:
-	case CS42L73_SPKMASPA:
-	case CS42L73_SPKMVSPMA:
-	case CS42L73_ESLMIPMA:
-	case CS42L73_ESLMXSPA:
-	case CS42L73_ESLMASPA:
-	case CS42L73_ESLMVSPMA:
-	case CS42L73_IM1:
-	case CS42L73_IM2:
+	case CS42L73_DEVID_AB ... CS42L73_DEVID_E:
+	case CS42L73_REVID ... CS42L73_IM2:
 		return true;
 	default:
 		return false;