ASoC: core: Add new SOC_DOUBLE_SX_TLV macro

Currently macros only exist for SX style (implicit sign bit 2's
compliment) volume controls where the volumes for left and right
are in separate registers. Some future Cirrus devices will have
both volumes in the same register, as such add a new macro to
support this.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220621102041.1713504-4-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 8909cc7d311ef350e8a7d0c9881d2c6f65d45053..76ee3c2b8b56cda858e543c0feea6ff2a1642d27 100644 (file)
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -136,6 +136,18 @@
        .put = snd_soc_put_volsw, \
        .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
                                          max, invert, 0) }
+#define SOC_DOUBLE_SX_TLV(xname, xreg, shift_left, shift_right, xmin, xmax, tlv_array) \
+{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
+       .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
+       SNDRV_CTL_ELEM_ACCESS_READWRITE, \
+       .tlv.p  = (tlv_array), \
+       .info = snd_soc_info_volsw_sx, \
+       .get = snd_soc_get_volsw_sx, \
+       .put = snd_soc_put_volsw_sx, \
+       .private_value = (unsigned long)&(struct soc_mixer_control) \
+               {.reg = xreg, .rreg = xreg, \
+               .shift = shift_left, .rshift = shift_right, \
+               .max = xmax, .min = xmin} }
 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 {      .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\