Commit 6ea8ba33 authored Oct 09, 2015 by Jeeja KP Committed by Mark Brown Oct 09, 2015

ASoC: Intel: Skylake: Check CPA bit in DSP core power down



Skylake driver will set the SPA bit to 0 to turn off the DSP core.
Driver will poll the Current Power Active (CPA) bit to match the
Set Power Active (SPA) bit value. When CPA bit matches the value
of SPA bit, the achieved power state has reached.

In case of DSP power down, register that was polled is SPA
instead of CPA. This patch corrects the register to be polled
in case of DSP power down.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 3373f716

sound/soc/intel/skylake/skl-sst-dsp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -175,7 +175,7 @@ static int skl_dsp_core_power_down(struct sst_dsp *ctx)
		/* poll with timeout to check if operation successful */
		return sst_dsp_register_poll(ctx,
		SKL_ADSP_REG_ADSPCS,
		SKL_ADSPCS_SPA_MASK,
		SKL_ADSPCS_CPA_MASK,
		0,
		SKL_DSP_PD_TO,
		"Power down");