[alsa-devel] [PATCH 20/42] ASoC: rt5640: Replace TLV_DB_RANGE_HEAD with DECLARE_TLV_DB_RANGE

[Lars-Peter Clausen]

DECLARE_TLV_DB_RANGE() has the advantage over using TLV_DB_RANGE_HEAD()
that it automatically calculates the number of items in the TLV and is
hence less prone to manual error.

Generate using the following coccinelle script

// <smpl>
@@
declarer name DECLARE_TLV_DB_RANGE;
identifier tlv;
constant x;
@@
-unsigned int tlv[] = {
-	TLV_DB_RANGE_HEAD(x),
+DECLARE_TLV_DB_RANGE(tlv,
	...
-};
+);
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
---
 sound/soc/codecs/rt5640.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 119eca7..3203db7 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -347,16 +347,15 @@ static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -17625, 375, 0);
 static const DECLARE_TLV_DB_SCALE(adc_bst_tlv, 0, 1200, 0);
 
 /* {0, +20, +24, +30, +35, +40, +44, +50, +52} dB */
-static unsigned int bst_tlv[] = {
-	TLV_DB_RANGE_HEAD(7),
+static const DECLARE_TLV_DB_RANGE(bst_tlv,
 	0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
 	1, 1, TLV_DB_SCALE_ITEM(2000, 0, 0),
 	2, 2, TLV_DB_SCALE_ITEM(2400, 0, 0),
 	3, 5, TLV_DB_SCALE_ITEM(3000, 500, 0),
 	6, 6, TLV_DB_SCALE_ITEM(4400, 0, 0),
 	7, 7, TLV_DB_SCALE_ITEM(5000, 0, 0),
-	8, 8, TLV_DB_SCALE_ITEM(5200, 0, 0),
-};
+	8, 8, TLV_DB_SCALE_ITEM(5200, 0, 0)
+);
 
 /* Interface data select */
 static const char * const rt5640_data_select[] = {
-- 
2.1.4