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| author | Pradeep Tewani <pradeep.d.tewani@intel.com> | 2017-12-06 16:34:02 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-12-06 17:44:54 +0000 |
| commit | 437623554e89f388648a31c35e1e5e4c7cb09004 (patch) | |
| tree | f9f72c4542895a5183eeb9d0effca7ba2cc0f79a /sound/soc/intel/skylake/skl-topology.c | |
| parent | b2ca3bdd07f68ca63fdb8e45f1fe039ba6af54a2 (diff) | |
| download | talos-obmc-linux-437623554e89f388648a31c35e1e5e4c7cb09004.tar.gz talos-obmc-linux-437623554e89f388648a31c35e1e5e4c7cb09004.zip | |
ASoC: Intel: Skylake: Parse vendor tokens to build A-State table
A-State table is a power management table which allows the driver to
configure the DSP clock source corresponding to various load thresholds.
The table contains upto 3 A-State entries. The patch adds and parses the
corresponding A-State tokens to build the table.
Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/skylake/skl-topology.c')
| -rw-r--r-- | sound/soc/intel/skylake/skl-topology.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index 1200b7c6af56..d8d110b3be01 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -3037,11 +3037,13 @@ static int skl_tplg_get_int_tkn(struct device *dev, struct snd_soc_tplg_vendor_value_elem *tkn_elem, struct skl *skl) { - int tkn_count = 0, ret; + int tkn_count = 0, ret, size; static int mod_idx, res_val_idx, intf_val_idx, dir, pin_idx; struct skl_module_res *res = NULL; struct skl_module_iface *fmt = NULL; struct skl_module *mod = NULL; + static struct skl_astate_param *astate_table; + static int astate_cfg_idx, count; int i; if (skl->modules) { @@ -3074,6 +3076,46 @@ static int skl_tplg_get_int_tkn(struct device *dev, mod_idx = tkn_elem->value; break; + case SKL_TKN_U32_ASTATE_COUNT: + if (astate_table != NULL) { + dev_err(dev, "More than one entry for A-State count"); + return -EINVAL; + } + + if (tkn_elem->value > SKL_MAX_ASTATE_CFG) { + dev_err(dev, "Invalid A-State count %d\n", + tkn_elem->value); + return -EINVAL; + } + + size = tkn_elem->value * sizeof(struct skl_astate_param) + + sizeof(count); + skl->cfg.astate_cfg = devm_kzalloc(dev, size, GFP_KERNEL); + if (!skl->cfg.astate_cfg) + return -ENOMEM; + + astate_table = skl->cfg.astate_cfg->astate_table; + count = skl->cfg.astate_cfg->count = tkn_elem->value; + break; + + case SKL_TKN_U32_ASTATE_IDX: + if (tkn_elem->value >= count) { + dev_err(dev, "Invalid A-State index %d\n", + tkn_elem->value); + return -EINVAL; + } + + astate_cfg_idx = tkn_elem->value; + break; + + case SKL_TKN_U32_ASTATE_KCPS: + astate_table[astate_cfg_idx].kcps = tkn_elem->value; + break; + + case SKL_TKN_U32_ASTATE_CLK_SRC: + astate_table[astate_cfg_idx].clk_src = tkn_elem->value; + break; + case SKL_TKN_U8_IN_PIN_TYPE: case SKL_TKN_U8_OUT_PIN_TYPE: case SKL_TKN_U8_IN_QUEUE_COUNT: |
