ASoC: Intel: Skylake: Disable clock and power gating during FW/LIB download

In order to achieve better DMA performance and reduce download time for
firmware and library, it is recommended to disable dynamic clock and
power gating. In some scenarios, DMA may wait to accumulate more data and
last chunk of data never gets completed if dynamic clock and power
gating is kept enabled.

This patch adds support to disable/enable dynamic clock and power gating
and use it during firmware and library download.

Signed-off-by: Rakesh Ughreja <rakesh.a.ughreja@intel.com>
Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c
index f161907859f3..57d4a58522a6 100644
--- a/sound/soc/intel/skylake/skl-messages.c
+++ b/sound/soc/intel/skylake/skl-messages.c
@@ -417,11 +417,16 @@ int skl_resume_dsp(struct skl *skl)
 	if (skl->skl_sst->is_first_boot == true)
 		return 0;
 
-	/* disable dynamic clock gating during fw and lib download */
+	/*
+	 * Disable dynamic clock and power gating during firmware
+	 * and library download
+	 */
 	ctx->enable_miscbdcge(ctx->dev, false);
+	ctx->clock_power_gating(ctx->dev, false);
 
 	ret = skl_dsp_wake(ctx->dsp);
 	ctx->enable_miscbdcge(ctx->dev, true);
+	ctx->clock_power_gating(ctx->dev, true);
 	if (ret < 0)
 		return ret;