ASoC: wm8962: Add Direct-Form 1 filter support

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8962.c

@@ -1759,6 +1759,9 @@ SOC_DOUBLE_R_TLV("EQ5 Volume", WM8962_EQ3, WM8962_EQ23,
 SOC_SINGLE("3D Switch", WM8962_THREED1, 0, 1, 0),
 SND_SOC_BYTES_MASK("3D Coefficients", WM8962_THREED1, 4, WM8962_THREED_ENA),
 
+SOC_SINGLE("DF1 Switch", WM8962_DF1, 0, 1, 0),
+SND_SOC_BYTES_MASK("DF1 Coefficients", WM8962_DF1, 7, WM8962_DF1_ENA),
+
 WM8962_DSP2_ENABLE("VSS Switch", WM8962_VSS_ENA_SHIFT),
 WM8962_DSP2_ENABLE("HPF1 Switch", WM8962_HPF1_ENA_SHIFT),
 WM8962_DSP2_ENABLE("HPF2 Switch", WM8962_HPF2_ENA_SHIFT),