diff options
| author | Jeeja KP <jeeja.kp@intel.com> | 2017-02-17 22:48:57 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-03-07 13:48:01 +0100 |
| commit | 7d3f91dc1e4db18b644695c9442c62679a5dff6e (patch) | |
| tree | cea19eca72bb8a01d2cc7ac1f122e45767c366db /sound/soc | |
| parent | 31d648f051fe82c9d6c2176b1b5ee402b1a18f21 (diff) | |
| download | linux-7d3f91dc1e4db18b644695c9442c62679a5dff6e.tar.bz2 | |
ASoC: Intel: bxtn: optimize ROM init retries
During S3->S0 transition, sometime ROM init fails because of
authentication engine loads later than the OS. In this case driver
waits for a longer period and then retries the FW download causing
huge delay in resume time of audio device.
To avoid this, ROM INIT wait time is set to a optimal value and
increased the retries for firmware download.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/intel/skylake/bxt-sst.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c index 7762d5a18fce..d3be1be5a372 100644 --- a/sound/soc/intel/skylake/bxt-sst.c +++ b/sound/soc/intel/skylake/bxt-sst.c @@ -25,7 +25,8 @@ #include "skl-sst-ipc.h" #define BXT_BASEFW_TIMEOUT 3000 -#define BXT_INIT_TIMEOUT 500 +#define BXT_INIT_TIMEOUT 300 +#define BXT_ROM_INIT_TIMEOUT 70 #define BXT_IPC_PURGE_FW 0x01004000 #define BXT_ROM_INIT 0x5 @@ -45,6 +46,8 @@ /* Delay before scheduling D0i3 entry */ #define BXT_D0I3_DELAY 5000 +#define BXT_FW_ROM_INIT_RETRY 3 + static unsigned int bxt_get_errorcode(struct sst_dsp *ctx) { return sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE); @@ -185,7 +188,7 @@ static int sst_bxt_prepare_fw(struct sst_dsp *ctx, /* Step 7: Wait for ROM init */ ret = sst_dsp_register_poll(ctx, BXT_ADSP_FW_STATUS, SKL_FW_STS_MASK, - SKL_FW_INIT, BXT_INIT_TIMEOUT, "ROM Load"); + SKL_FW_INIT, BXT_ROM_INIT_TIMEOUT, "ROM Load"); if (ret < 0) { dev_err(ctx->dev, "Timeout for ROM init, ret:%d\n", ret); goto base_fw_load_failed; @@ -218,7 +221,7 @@ static int bxt_load_base_firmware(struct sst_dsp *ctx) { struct firmware stripped_fw; struct skl_sst *skl = ctx->thread_context; - int ret; + int ret, i; if (ctx->fw == NULL) { ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev); @@ -239,18 +242,20 @@ static int bxt_load_base_firmware(struct sst_dsp *ctx) stripped_fw.size = ctx->fw->size; skl_dsp_strip_extended_manifest(&stripped_fw); - ret = sst_bxt_prepare_fw(ctx, stripped_fw.data, stripped_fw.size); - /* Retry Enabling core and ROM load. Retry seemed to help */ - if (ret < 0) { + + for (i = 0; i < BXT_FW_ROM_INIT_RETRY; i++) { ret = sst_bxt_prepare_fw(ctx, stripped_fw.data, stripped_fw.size); - if (ret < 0) { - dev_err(ctx->dev, "Error code=0x%x: FW status=0x%x\n", + if (ret == 0) + break; + } + + if (ret < 0) { + dev_err(ctx->dev, "Error code=0x%x: FW status=0x%x\n", sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE), sst_dsp_shim_read(ctx, BXT_ADSP_FW_STATUS)); - dev_err(ctx->dev, "Core En/ROM load fail:%d\n", ret); - goto sst_load_base_firmware_failed; - } + dev_err(ctx->dev, "Core En/ROM load fail:%d\n", ret); + goto sst_load_base_firmware_failed; } ret = sst_transfer_fw_host_dma(ctx); |