linux-kernel - [PATCH AUTOSEL 5.7 209/388] ALSA: usb-audio: fixing upper volume limit for RME Babyface Pro routing crosspoints

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Message-Id: <20200618010805.600873-209-sashal@kernel.org>
Date:   Wed, 17 Jun 2020 21:05:06 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Thomas Ebeling <penguins@...lie.de>, Takashi Iwai <tiwai@...e.de>,
        Sasha Levin <sashal@...nel.org>, alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 5.7 209/388] ALSA: usb-audio: fixing upper volume limit for RME Babyface Pro routing crosspoints

From: Thomas Ebeling <penguins@...lie.de>

[ Upstream commit 47b4f5f5b65680fbef7a7a9a4796b35f38a6e43e ]

In my initial patch, these were set too low.

Fixes: 3e8f3bd04716 ("ALSA: usb-audio: RME Babyface Pro mixer patch")
Signed-off-by: Thomas Ebeling <penguins@...lie.de>
Link: https://lore.kernel.org/r/20200515114556.vtspnonzvp4xp44m@bollie.ca9.eu
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/usb/mixer_quirks.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index bdff8674942e..aad2683ff793 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2191,7 +2191,7 @@ static int snd_rme_controls_create(struct usb_mixer_interface *mixer)
  * These devices exposes a couple of DSP functions via request to EP0.
  * Switches are available via control registers, while routing is controlled
  * by controlling the volume on each possible crossing point.
- * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 46341) with
+ * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 65536) with
  * 0dB being at dec. 32768.
  */
 enum {
@@ -2220,7 +2220,7 @@ enum {
 #define SND_BBFPRO_MIXER_VAL_MASK 0x3ffff
 #define SND_BBFPRO_MIXER_VAL_SHIFT 9
 #define SND_BBFPRO_MIXER_VAL_MIN 0 // -inf
-#define SND_BBFPRO_MIXER_VAL_MAX 46341 // +6dB
+#define SND_BBFPRO_MIXER_VAL_MAX 65536 // +6dB
 
 #define SND_BBFPRO_USBREQ_CTL_REG1 0x10
 #define SND_BBFPRO_USBREQ_CTL_REG2 0x17
-- 
2.25.1