[PATCH v5 02/14] ASoC: rsnd: Fix RSND_SOC_MASK width to single nibble

[John Madieu <john.madieu@gmail.com>]

RSND_SOC_MASK was defined as (0xFF << 4), spanning bits 4-11. This is
wider than needed since only nibble B (bits 7:4) is used for SoC
identifiers. Narrow it to (0xF << 4) to match the intended single-nibble
allocation and prevent overlap with bits 8-11 which will be used by
upcoming RZ series flags.

No functional change, since the only current user (RSND_SOC_E) fits
within a single nibble.

Fixes: ba164a49f8f7 ("ASoC: rsnd: src: Avoid a potential deadlock")
Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
---

Changes:

v5:
 - New patch
 - Extracted as a standalone bug-fix patch per Kuninori's request
   Previously embedded in patch 04/12.
 - Add Fixes: tag referencing the commit that introduced the mask.

 sound/soc/renesas/rcar/rsnd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/renesas/rcar/rsnd.h b/sound/soc/renesas/rcar/rsnd.h
index 04c70690f7a2..3e666125959b 100644
--- a/sound/soc/renesas/rcar/rsnd.h
+++ b/sound/soc/renesas/rcar/rsnd.h
@@ -624,7 +624,7 @@ struct rsnd_priv {
 #define RSND_GEN2	(2 << 0)
 #define RSND_GEN3	(3 << 0)
 #define RSND_GEN4	(4 << 0)
-#define RSND_SOC_MASK	(0xFF << 4)
+#define RSND_SOC_MASK	(0xF << 4)
 #define RSND_SOC_E	(1 << 4) /* E1/E2/E3 */
 
 	/*
-- 
2.25.1