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Commit fa63e477 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Don't restart an already running WM8958 DSP2 



Don't want to upset the DSP.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@ti.com>
Cc: stable@kernel.org
parent d7fdae7c

sound/soc/codecs/wm8958-dsp2.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -362,6 +362,10 @@ static void wm8958_dsp_apply(struct snd_soc_codec *codec, int path, int start) 
		path, wm8994->dsp_active, start, pwr_reg, reg);

		path, wm8994->dsp_active, start, pwr_reg, reg);





	if (start && ena) {

	if (start && ena) {

		/* If the DSP is already running then noop */

		if (reg & WM8958_DSP2_ENA)

			return;



		/* If either AIFnCLK is not yet enabled postpone */

		/* If either AIFnCLK is not yet enabled postpone */

		if (!(snd_soc_read(codec, WM8994_AIF1_CLOCKING_1)

		if (!(snd_soc_read(codec, WM8994_AIF1_CLOCKING_1)

		      & WM8994_AIF1CLK_ENA_MASK) &&

		      & WM8994_AIF1CLK_ENA_MASK) &&