From mboxrd@z Thu Jan 1 00:00:00 1970 From: jeeja.kp@intel.com Subject: [PATCH V2 04/10] ASoC: Intel: bxtn: Update DSP core state in D0 Date: Mon, 13 Mar 2017 22:11:26 +0530 Message-ID: <1489423292-19997-5-git-send-email-jeeja.kp@intel.com> References: <1489423292-19997-1-git-send-email-jeeja.kp@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by alsa0.perex.cz (Postfix) with ESMTP id A0EAE266CAF for ; Mon, 13 Mar 2017 17:29:40 +0100 (CET) In-Reply-To: <1489423292-19997-1-git-send-email-jeeja.kp@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: tiwai@suse.de, patches.audio@intel.com, broonie@kernel.org, liam.r.girdwood@intel.com, Jeeja KP List-Id: alsa-devel@alsa-project.org From: Jeeja KP In system suspend, firmware needs to be re-downloaded as IMR is cleared. When firmware is downloaded in D0, core state is not set to running state causing instability with subsequent D0-D3 cycles. So set the core state correctly during D0 and check the DSP core state if not in reset to set the DSP to D3. Signed-off-by: Jeeja KP --- sound/soc/intel/skylake/bxt-sst.c | 1 + sound/soc/intel/skylake/skl-sst-dsp.c | 6 ++++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c index b34c965..2a2bb94 100644 --- a/sound/soc/intel/skylake/bxt-sst.c +++ b/sound/soc/intel/skylake/bxt-sst.c @@ -446,6 +446,7 @@ static int bxt_set_dsp_D0(struct sst_dsp *ctx, unsigned int core_id) return ret; } } + skl->cores.state[core_id] = SKL_DSP_RUNNING; return ret; } diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c index c3deefa..0833272 100644 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ b/sound/soc/intel/skylake/skl-sst-dsp.c @@ -355,12 +355,13 @@ int skl_dsp_get_core(struct sst_dsp *ctx, unsigned int core_id) ret = ctx->fw_ops.set_state_D0(ctx, core_id); if (ret < 0) { dev_err(ctx->dev, "unable to get core%d\n", core_id); - return ret; + goto out; } } skl->cores.usage_count[core_id]++; +out: dev_dbg(ctx->dev, "core id %d state %d usage_count %d\n", core_id, skl->cores.state[core_id], skl->cores.usage_count[core_id]); @@ -379,7 +380,8 @@ int skl_dsp_put_core(struct sst_dsp *ctx, unsigned int core_id) return -EINVAL; } - if (--skl->cores.usage_count[core_id] == 0) { + if ((--skl->cores.usage_count[core_id] == 0) && + (skl->cores.state[core_id] != SKL_DSP_RESET)) { ret = ctx->fw_ops.set_state_D3(ctx, core_id); if (ret < 0) { dev_err(ctx->dev, "unable to put core %d: %d\n", -- 2.5.0