From: Jeeja KP jeeja.kp@intel.com

SKL driver needs to instantiate pipelines and modules in the DSP. The topology in the DSP is modelled as DAPM graph with a PGA representing a module instance and mixer representing a pipeline for a group of modules along with the mixer itself.

Here we start adding building block for handling these. We add resource checks (memory/compute) for pipelines, find the modules in a pipeline, init modules in a pipe and lastly bind/unbind modules in a pipe These will be used by pipe event handlers in subsequent patches

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/Makefile | 3 +- sound/soc/intel/skylake/skl-topology.c | 198 +++++++++++++++++++++++++++++++++ sound/soc/intel/skylake/skl-topology.h | 10 ++ sound/soc/intel/skylake/skl.h | 11 ++ 4 files changed, 221 insertions(+), 1 deletion(-) create mode 100644 sound/soc/intel/skylake/skl-topology.c

diff --git a/sound/soc/intel/skylake/Makefile b/sound/soc/intel/skylake/Makefile index 27db22178204..914b6dab9bea 100644 --- a/sound/soc/intel/skylake/Makefile +++ b/sound/soc/intel/skylake/Makefile @@ -1,4 +1,5 @@ -snd-soc-skl-objs := skl.o skl-pcm.o skl-nhlt.o skl-messages.o +snd-soc-skl-objs := skl.o skl-pcm.o skl-nhlt.o skl-messages.o \ +skl-topology.o

obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += snd-soc-skl.o

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c new file mode 100644 index 000000000000..0c2d2009540c --- /dev/null +++ b/sound/soc/intel/skylake/skl-topology.c @@ -0,0 +1,198 @@ +/* + * skl-topology.c - Implements Platform component ALSA controls/widget + * handlers. + * + * Copyright (C) 2014-2015 Intel Corp + * Author: Jeeja KP jeeja.kp@intel.com + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/firmware.h> +#include <sound/soc.h> +#include <sound/soc-topology.h> +#include "skl-sst-dsp.h" +#include "skl-sst-ipc.h" +#include "skl-topology.h" +#include "skl.h" +#include "skl-tplg-interface.h" + +/* + * SKL DSP driver modelling uses only few DAPM widgets so for rest we will + * ignore. This helpers checks if the SKL driver handles this widget type + */ +static int is_skl_dsp_widget_type(struct snd_soc_dapm_widget *w) +{ + switch (w->id) { + case snd_soc_dapm_dai_link: + case snd_soc_dapm_dai_in: + case snd_soc_dapm_aif_in: + case snd_soc_dapm_aif_out: + case snd_soc_dapm_dai_out: + case snd_soc_dapm_switch: + return false; + default: + return true; + } +} + +/* + * Each pipelines needs memory to be allocated. Check if we have free memory + * from available pool. Then only add this to pool + * This is freed when pipe is deleted + * Note: DSP does actual memory management we only keep track for complete + * pool + */ +static bool skl_tplg_is_pipe_mem_available(struct skl *skl, + struct skl_module_cfg *mconfig) +{ + struct skl_sst *ctx = skl->skl_sst; + + if (skl->resource.mem + mconfig->pipe->memory_pages > skl->resource.max_mem) { + dev_err(ctx->dev, "%s: module_id =%d instance=%d\n", __func__, + mconfig->id.module_id, mconfig->id.instance_id); + dev_err(ctx->dev, "exceeds ppl memory available=%d > mem=%d\n", + skl->resource.max_mem, skl->resource.mem); + return false; + } + + skl->resource.mem += mconfig->pipe->memory_pages; + return true; +} + +/* + * Pipeline needs needs DSP CPU resources for computation, this is quantified + * in MCPS (Million Clocks Per Second) required for module/pipe + * + * Each pipelines needs mcps to be allocated. Check if we have mcps for this + * pipe. This adds the mcps to driver counter + * This is removed on pipeline delete + */ +static bool skl_tplg_is_pipe_mcps_available(struct skl *skl, + struct skl_module_cfg *mconfig) +{ + struct skl_sst *ctx = skl->skl_sst; + + if (skl->resource.mcps + mconfig->mcps > skl->resource.max_mcps) { + dev_err(ctx->dev, "%s: module_id = %d instance=%d\n", __func__, + mconfig->id.module_id, mconfig->id.instance_id); + dev_err(ctx->dev, "exceeds ppl memory available=%d > mem=%d\n", + skl->resource.max_mcps, skl->resource.mcps); + return false; + } + + skl->resource.mcps += mconfig->mcps; + return true; +} + +/* + * A pipe can have multiple modules, each of them will be a DAPM widget as + * well. While managing a pipeline we need to get the list of all the + * widgets in a pipelines, so this helper - skl_tplg_get_pipe_widget() helps + * to get the SKL type widgets in that pipeline + */ +static int skl_tplg_get_pipe_widget(struct device *dev, + struct snd_soc_dapm_widget *w, struct skl_pipe *pipe) +{ + struct skl_module_cfg *src_module = NULL; + struct snd_soc_dapm_path *p = NULL; + struct skl_pipe_module *p_module = NULL; + + p_module = devm_kzalloc(dev, sizeof(*p_module), GFP_KERNEL); + if (!p_module) + return -ENOMEM; + + p_module->w = w; + list_add_tail(&p_module->node, &pipe->w_list); + + snd_soc_dapm_widget_for_each_sink_path(w, p) { + if ((p->sink->priv == NULL) + && (!is_skl_dsp_widget_type(w))) + continue; + + if ((p->sink->priv != NULL) && p->connect + && is_skl_dsp_widget_type(p->sink)) { + + src_module = p->sink->priv; + if (pipe->ppl_id == src_module->pipe->ppl_id) { + dev_dbg(dev, "found widget=%s\n", p->sink->name); + skl_tplg_get_pipe_widget(dev, p->sink, pipe); + } + } + } + return 0; +} + +/* + * Inside a pipe instance, we can have various modules. These modules need + * to instantiated in DSP by invoking INIT_MODULE IPC, which is achieved by + * skl_init_module() routine, so invoke that for all modules in a pipeline + */ +static int skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe) +{ + struct skl_pipe_module *w_module; + struct snd_soc_dapm_widget *w; + struct skl_module_cfg *mconfig; + struct skl_sst *ctx = skl->skl_sst; + int ret = 0; + + list_for_each_entry(w_module, &pipe->w_list, node) { + w = w_module->w; + mconfig = w->priv; + + /* check resource available */ + if (!skl_tplg_is_pipe_mcps_available(skl, mconfig)) + return -ENOMEM; + + ret = skl_init_module(ctx, mconfig, NULL); + if (ret < 0) + return ret; + } + + return 0; +} + +/* + * Once all the modules in a pipe are instantiated, they need to be + * connected. + * On removal, before deleting a pipeline the modules need to disconnected. + * + * This is achieved by binding/unbinding these modules + */ +static int skl_tplg_bind_unbind_pipe_modules(struct skl_sst *ctx, + struct skl_pipe *pipe, bool bind) +{ + struct skl_pipe_module *w_module; + struct skl_module_cfg *src_module = NULL; + struct skl_module_cfg *dst_module; + int ret = 0; + + list_for_each_entry(w_module, &pipe->w_list, node) { + dst_module = w_module->w->priv; + + if (src_module == NULL) { + src_module = dst_module; + continue; + } + + if (bind) + ret = skl_bind_modules(ctx, src_module, dst_module); + else + ret = skl_unbind_modules(ctx, src_module, dst_module); + if (ret < 0) + return ret; + + src_module = dst_module; + } + return 0; +} diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index 8c7767baa94f..73d7916ee33e 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -263,6 +263,16 @@ struct skl_module_cfg { struct skl_specific_cfg formats_config; };

+struct skl_pipeline { + struct skl_pipe *pipe; + struct list_head node; +}; + +struct skl_dapm_path_list { + struct snd_soc_dapm_path *dapm_path; + struct list_head node; +}; + int skl_create_pipeline(struct skl_sst *ctx, struct skl_pipe *pipe);

int skl_run_pipe(struct skl_sst *ctx, struct skl_pipe *pipe); diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index f7fdbb02947f..e980d7897642 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -48,6 +48,13 @@ #define AZX_REG_VS_SDXEFIFOS_XBASE 0x1094 #define AZX_REG_VS_SDXEFIFOS_XINTERVAL 0x20

+struct skl_dsp_resource { + u32 max_mcps; + u32 max_mem; + u32 mcps; + u32 mem; +}; + struct skl { struct hdac_ext_bus ebus; struct pci_dev *pci; @@ -57,6 +64,10 @@ struct skl {

void __iomem *nhlt; /* nhlt ptr */ struct skl_sst *skl_sst; /* sst skl ctx */ + + struct skl_dsp_resource resource; + struct list_head ppl_list; + struct list_head dapm_path_list; };

#define skl_to_ebus(s) (&(s)->ebus)

From: Jeeja KP jeeja.kp@intel.com

The Skylake driver topology model tries to model the firmware rule for pipeline and module creation. The creation rule is: - Create Pipe - Add modules to Pipe - Connect the modules (bind) - Start the pipes

Similarly destroy rule is: - Stop the pipe - Disconnect it (unbind) - Delete the pipe

In driver we use Mixer, as there will always be ONE mixer in a pipeline to model a pipe. The modules in pipe are modelled as PGA widgets. The DAPM sequencing rules (mixer and then PGA) are used to create the sequence DSP expects as depicted above, and then widget handlers for PMU and PMD events help in that.

This patch adds widget event handlers for PRE/POST PMU and PRE/POST PMD event for mixer and pga modules. These event handlers invoke pipeline creation, destroy, module creation, module bind, unbind and pipeline bind unbind

Event handler sequencing is implement to target the DSP FW sequence expectations to enable path from source to sink pipe for Playback/Capture.

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Hardik T Shah hardik.t.shah@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-topology.c | 413 +++++++++++++++++++++++++++++++++ sound/soc/intel/skylake/skl-topology.h | 7 + 2 files changed, 420 insertions(+)

diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index ddf5979b1ee4..12aa84bd7a63 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -322,3 +322,416 @@ static int skl_tplg_bind_unbind_pipe_modules(struct skl_sst *ctx, } return 0; } + +/* + * Mixer module represents a pipeline. So in the Pre-PMU event of mixer we + * need create the pipeline. So we do following: + * - check the resources + * - Create the pipeline + * - Initialize the modules in pipeline + * - finally bind all modules together + */ +static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w, + struct skl *skl) +{ + int ret; + struct skl_module_cfg *mconfig = w->priv; + struct skl_pipe *s_pipe = mconfig->pipe; + struct skl_sst *ctx = skl->skl_sst; + + /* check resource available */ + if (!skl_tplg_is_pipe_mcps_available(skl, mconfig)) + return -EBUSY; + + if (!skl_tplg_is_pipe_mem_available(skl, mconfig)) + return -ENOMEM; + + /* + * Create a list of modules for pipe. + * This list contains modules from source to sink + */ + + ret = skl_create_pipeline(ctx, mconfig->pipe); + if (ret < 0) + return ret; + + /* + * we create a w_list of all widgets in that pipe. This list is not + * freed on PMD event as widgets within a pipe are static. This + * saves us cycles to get widgets in pipe every time. + * + * So if we have already initialized all the widgets of a pipeline we + * skip, so check for list_empty and create the list if empty + */ + if (list_empty(&s_pipe->w_list)) { + ret = skl_tplg_get_pipe_widget(ctx->dev, w, s_pipe); + if (ret < 0) + return ret; + } + + /* Init all pipe modules from source to sink */ + ret = skl_tplg_init_pipe_modules(skl, s_pipe); + if (ret < 0) + return ret; + + /* Bind modules from source to sink */ + return skl_tplg_bind_unbind_pipe_modules(ctx, s_pipe, true); +} + +/* + * A PGA represents a module in a pipeline. So in the Pre-PMU event of PGA + * we need to do following: + * - Bind to sink pipeline + * Since the sink pipes can be running and we don't get mixer event on + * connect for already running mixer, we need to find the sink pipes + * here and bind to them. This way dynamic connect works. + * - Start sink pipeline, if not running + * - Then run current pipe + */ +static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w, + struct skl *skl) +{ + struct snd_soc_dapm_path *p; + struct skl_dapm_path_list *path_list; + struct snd_soc_dapm_widget *source, *sink; + struct skl_module_cfg *src_mconfig, *sink_mconfig; + struct skl_sst *ctx = skl->skl_sst; + int ret = 0; + + source = w; + src_mconfig = source->priv; + + /* + * find which sink it is connected to, bind with the sink, + * if sink is not started, start sink pipe first, then start + * this pipe + */ + snd_soc_dapm_widget_for_each_source_path(w, p) { + if (!p->connect) + continue; + + dev_dbg(ctx->dev, "%s: src widget=%s\n", __func__, w->name); + dev_dbg(ctx->dev, "%s: sink widget=%s\n", __func__, p->sink->name); + + /* + * here we will check widgets in sink pipelines, so that can + * be any widgets type and we are only interested if they are + * ones used for SKL so check that first + */ + if ((p->sink->priv != NULL) && is_skl_dsp_widget_type(p->sink)) { + + sink = p->sink; + src_mconfig = source->priv; + sink_mconfig = sink->priv; + + /* Bind source to sink, mixin is always source */ + ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig); + if (ret) + return ret; + + /* Start sinks pipe first */ + if (sink_mconfig->pipe->state != SKL_PIPE_STARTED) { + ret = skl_run_pipe(ctx, sink_mconfig->pipe); + if (ret) + return ret; + } + + path_list = kzalloc(sizeof(struct skl_dapm_path_list), + GFP_KERNEL); + if (path_list == NULL) + return -ENOMEM; + + /* Add connected path to one global list */ + path_list->dapm_path = p; + list_add_tail(&path_list->node, &skl->dapm_path_list); + break; + } + } + + /* Start source pipe last after starting all sinks */ + ret = skl_run_pipe(ctx, src_mconfig->pipe); + if (ret) + return ret; + + return 0; +} + +/* + * in the Post-PMU event of mixer we need to do following: + * - Check if this pipe is running + * - if not, then + * - bind this pipeline to its source pipeline + * if source pipe is already running, this means it is a dynamic + * connection and we need to bind only to that pipe + * - start this pipeline + */ +static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w, + struct skl *skl) +{ + int ret = 0; + struct snd_soc_dapm_path *p; + struct snd_soc_dapm_widget *source, *sink; + struct skl_module_cfg *src_mconfig, *sink_mconfig; + struct skl_sst *ctx = skl->skl_sst; + int src_pipe_started = 0; + + sink = w; + sink_mconfig = sink->priv; + + /* + * If source pipe is already started, that means source is driving + * one more sink before this sink got connected, Since source is + * started, bind this sink to source and start this pipe. + */ + snd_soc_dapm_widget_for_each_sink_path(w, p) { + if (!p->connect) + continue; + + dev_dbg(ctx->dev, "sink widget=%s\n", w->name); + dev_dbg(ctx->dev, "src widget=%s\n", p->source->name); + + /* + * here we will check widgets in sink pipelines, so that can + * be any widgets type and we are only interested if they are + * ones used for SKL so check that first + */ + if ((p->source->priv != NULL) && is_skl_dsp_widget_type(p->source)) { + source = p->source; + src_mconfig = source->priv; + sink_mconfig = sink->priv; + src_pipe_started = 1; + + /* + * check pipe state, then no need to bind or start the + * pipe + */ + if (src_mconfig->pipe->state != SKL_PIPE_STARTED) + src_pipe_started = 0; + } + } + + if (src_pipe_started) { + ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig); + if (ret) + return ret; + + ret = skl_run_pipe(ctx, sink_mconfig->pipe); + } + + return ret; +} + +/* + * in the Pre-PMD event of mixer we need to do following: + * - Stop the pipe + * - find the source connections and remove that from dapm_path_list + * - unbind with source pipelines if still connected + */ +static int skl_tplg_mixer_dapm_pre_pmd_event(struct snd_soc_dapm_widget *w, + struct skl *skl) +{ + struct snd_soc_dapm_widget *source, *sink; + struct skl_module_cfg *src_mconfig, *sink_mconfig; + int ret = 0, path_found = 0; + struct skl_dapm_path_list *path_list, *tmp_list; + struct skl_sst *ctx = skl->skl_sst; + + sink = w; + sink_mconfig = sink->priv; + + /* Stop the pipe */ + ret = skl_stop_pipe(ctx, sink_mconfig->pipe); + if (ret) + return ret; + + /* + * This list, dapm_path_list handling here does not need any locks + * as we are under dapm lock while handling widget events. + * List can be manipulated safely only under dapm widgets handler + * routines + */ + list_for_each_entry_safe(path_list, tmp_list, &skl->dapm_path_list, node) { + if (path_list->dapm_path->sink == sink) { + dev_dbg(ctx->dev, "Path found = %s\n", path_list->dapm_path->name); + source = path_list->dapm_path->source; + src_mconfig = source->priv; + path_found = 1; + + list_del(&path_list->node); + kfree(path_list); + break; + } + } + + /* + * If path_found == 1, that means pmd for source pipe has + * not occurred, source is connected to some other sink. + * so its responsibility of sink to unbind itself from source. + */ + if (path_found) { + ret = skl_stop_pipe(ctx, src_mconfig->pipe); + if (ret < 0) + return ret; + + ret = skl_unbind_modules(ctx, src_mconfig, sink_mconfig); + } + + return ret; +} + +/* + * in the Post-PMD event of mixer we need to do following: + * - Free the mcps used + * - Free the mem used + * - Unbind the modules within the pipeline + * - Delete the pipeline (modules are not required to be explicitly + * deleted, pipeline delete is enough here + */ +static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w, + struct skl *skl) +{ + struct skl_module_cfg *mconfig = w->priv; + int ret = 0; + struct skl_sst *ctx = skl->skl_sst; + struct skl_pipe *s_pipe = mconfig->pipe; + + skl->resource.mcps -= mconfig->mcps; + + ret = skl_tplg_bind_unbind_pipe_modules(ctx, s_pipe, false); + if (ret < 0) + return ret; + + ret = skl_delete_pipe(ctx, mconfig->pipe); + skl->resource.mem -= mconfig->pipe->memory_pages; + + return ret; +} + +/* + * in the Post-PMD event of PGA we need to do following: + * - Free the mcps used + * - Stop the pipeline + * - In source pipe is connected, unbind with source pipelines + */ +static int skl_tplg_pga_dapm_post_pmd_event(struct snd_soc_dapm_widget *w, + struct skl *skl) +{ + struct snd_soc_dapm_widget *source, *sink; + struct skl_module_cfg *src_mconfig, *sink_mconfig; + int ret = 0, path_found = 0; + struct skl_dapm_path_list *path_list, *tmp_path_list; + struct skl_sst *ctx = skl->skl_sst; + + source = w; + src_mconfig = source->priv; + + skl->resource.mcps -= src_mconfig->mcps; + /* Stop the pipe since this is a mixin module */ + ret = skl_stop_pipe(ctx, src_mconfig->pipe); + if (ret) + return ret; + + list_for_each_entry_safe(path_list, tmp_path_list, &skl->dapm_path_list, node) { + if (path_list->dapm_path->source == source) { + dev_dbg(ctx->dev, "Path found = %s\n", path_list->dapm_path->name); + sink = path_list->dapm_path->sink; + sink_mconfig = sink->priv; + path_found = 1; + + list_del(&path_list->node); + kfree(path_list); + break; + } + } + + /* + * This is a connector and if path is found that means + * unbind between source and sink has not happened yet + */ + if (path_found) { + ret = skl_stop_pipe(ctx, src_mconfig->pipe); + if (ret < 0) + return ret; + + ret = skl_unbind_modules(ctx, src_mconfig, sink_mconfig); + } + + return ret; +} + +/* + * In modelling, we assume there will be ONLY one mixer in a pipeline. If + * mixer is not required then it is treated as static mixer aka vmixer with + * a hard path to source module + * So we don't need to check if source is started or not as hard path puts + * dependency on each other + */ +static int skl_tplg_vmixer_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct skl *skl = get_skl_ctx(dapm->dev); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return skl_tplg_mixer_dapm_pre_pmu_event(w, skl); + + case SND_SOC_DAPM_POST_PMD: + return skl_tplg_mixer_dapm_post_pmd_event(w, skl); + } + + return 0; +} + +/* + * In modelling, we assume there will be ONLY one mixer in a pipeline. If a + * second one is required that is created as another pipe entity. + * The mixer is responsible for pipe management and represent a pipeline + * instance + */ +static int skl_tplg_mixer_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct skl *skl = get_skl_ctx(dapm->dev); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return skl_tplg_mixer_dapm_pre_pmu_event(w, skl); + + case SND_SOC_DAPM_POST_PMU: + return skl_tplg_mixer_dapm_post_pmu_event(w, skl); + + case SND_SOC_DAPM_PRE_PMD: + return skl_tplg_mixer_dapm_pre_pmd_event(w, skl); + + case SND_SOC_DAPM_POST_PMD: + return skl_tplg_mixer_dapm_post_pmd_event(w, skl); + } + + return 0; +} + +/* + * In modelling, we assumed rest of the modules in pipeline are PGA. But we + * are interested in last PGA (leaf PGA) in a pipeline to disconnect with + * the sink when it is running (two FE to one BE or one FE to two BE) + * scenarios + */ +static int skl_tplg_pga_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) + +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct skl *skl = get_skl_ctx(dapm->dev); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return skl_tplg_pga_dapm_pre_pmu_event(w, skl); + + case SND_SOC_DAPM_POST_PMD: + return skl_tplg_pga_dapm_post_pmd_event(w, skl); + } + + return 0; +} diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index 73d7916ee33e..b3a22a6f8d27 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -273,6 +273,13 @@ struct skl_dapm_path_list { struct list_head node; };

+static inline struct skl *get_skl_ctx(struct device *dev) +{ + struct hdac_ext_bus *ebus = dev_get_drvdata(dev); + + return ebus_to_skl(ebus); +} + int skl_create_pipeline(struct skl_sst *ctx, struct skl_pipe *pipe);

int skl_run_pipe(struct skl_sst *ctx, struct skl_pipe *pipe);

The SKL driver does not code DSP topology in driver. It uses the newly added ASoC topology core to parse the topology information (controls, widgets and map) from topology binary. Each topology element passed private data which contains information that driver used to identify the module instance within firmware and send IPCs for that module to DSP firmware along with parameters. This patch adds init routine to invoke topology load and callback for topology creation.

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/Kconfig | 1 + sound/soc/intel/skylake/skl-topology.c | 218 +++++++++++++++++++++++++++ sound/soc/intel/skylake/skl-topology.h | 1 - sound/soc/intel/skylake/skl-tplg-interface.h | 80 ++++++++++ 4 files changed, 299 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig index 05fde5e6e257..664df1f44530 100644 --- a/sound/soc/intel/Kconfig +++ b/sound/soc/intel/Kconfig @@ -138,4 +138,5 @@ config SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH config SND_SOC_INTEL_SKYLAKE tristate select SND_HDA_EXT_CORE + select SND_SOC_TOPOLOGY select SND_SOC_INTEL_SST diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c index ba287035fca3..6ad19622dc3e 100644 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -965,3 +965,221 @@ int skl_tplg_be_update_params(struct snd_soc_dai *dai,

return 0; } + +static const struct snd_soc_tplg_widget_events skl_tplg_widget_ops[] = { + {SKL_MIXER_EVENT, skl_tplg_mixer_event}, + {SKL_VMIXER_EVENT, skl_tplg_vmixer_event}, + {SKL_PGA_EVENT, skl_tplg_pga_event}, +}; + +/* + * The topology binary passes the pin info for a module so initialize the pin + * info passed into module instance + */ +static void skl_fill_module_pin_info(struct device *dev, + struct skl_module_pin *m_pin, + int max_pin) +{ + int i; + + for (i = 0; i < max_pin; i++) { + m_pin[i].id.module_id = 0; + m_pin[i].id.instance_id = 0; + m_pin[i].in_use = false; + m_pin[i].is_dynamic = true; + m_pin[i].pin_index = i; + } +} + +/* + * Add pipeline from topology binary into driver pipeline list + * + * If already added we return that instance + * Otherwise we create a new instance and add into driver list + */ +static struct skl_pipe *skl_tplg_add_pipe(struct device *dev, + struct skl *skl, struct skl_dfw_pipe *dfw_pipe) +{ + struct skl_pipeline *ppl; + struct skl_pipe *pipe; + struct skl_pipe_params *params; + + list_for_each_entry(ppl, &skl->ppl_list, node) { + if (ppl->pipe->ppl_id == dfw_pipe->pipe_id) + return ppl->pipe; + } + + ppl = devm_kzalloc(dev, sizeof(*ppl), GFP_KERNEL); + if (!ppl) + return NULL; + + pipe = devm_kzalloc(dev, sizeof(*pipe), GFP_KERNEL); + if (!pipe) + return NULL; + + params = devm_kzalloc(dev, sizeof(*params), GFP_KERNEL); + if (!params) + return NULL; + + pipe->ppl_id = dfw_pipe->pipe_id; + pipe->memory_pages = dfw_pipe->memory_pages; + pipe->pipe_priority = dfw_pipe->pipe_priority; + pipe->conn_type = dfw_pipe->conn_type; + pipe->state = SKL_PIPE_INVALID; + pipe->p_params = params; + INIT_LIST_HEAD(&pipe->w_list); + + ppl->pipe = pipe; + list_add(&ppl->node, &skl->ppl_list); + + return ppl->pipe; +} + +/* + * Topology core widget load callback + * + * This is used to save the private data for each widget which gives + * information to the driver about module and pipeline parameters which DSP + * FW expects like ids, resource values, formats etc + */ +static int skl_tplg_widget_load(struct snd_soc_component *cmpnt, + struct snd_soc_dapm_widget *w, + struct snd_soc_tplg_dapm_widget *tplg_w) +{ + int ret; + struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt); + struct skl *skl = ebus_to_skl(ebus); + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct skl_module_cfg *mconfig; + struct skl_pipe *pipe; + struct skl_dfw_module *dfw_config = (struct skl_dfw_module *)tplg_w->priv.data; + + if (!tplg_w->priv.size) + goto bind_event; + + mconfig = devm_kzalloc(bus->dev, sizeof(*mconfig), GFP_KERNEL); + + if (!mconfig) + return -ENOMEM; + + w->priv = mconfig; + mconfig->id.module_id = dfw_config->module_id; + mconfig->id.instance_id = dfw_config->instance_id; + mconfig->mcps = dfw_config->max_mcps; + mconfig->ibs = dfw_config->ibs; + mconfig->obs = dfw_config->obs; + mconfig->core_id = dfw_config->core_id; + mconfig->max_in_queue = dfw_config->max_in_queue; + mconfig->max_out_queue = dfw_config->max_out_queue; + mconfig->is_loadable = dfw_config->is_loadable; + mconfig->in_fmt.channels = dfw_config->in_fmt.channels; + mconfig->in_fmt.s_freq = dfw_config->in_fmt.freq; + mconfig->in_fmt.bit_depth = dfw_config->in_fmt.bit_depth; + mconfig->in_fmt.valid_bit_depth = dfw_config->in_fmt.valid_bit_depth; + mconfig->in_fmt.ch_cfg = dfw_config->in_fmt.ch_cfg; + mconfig->out_fmt.channels = dfw_config->out_fmt.channels; + mconfig->out_fmt.s_freq = dfw_config->out_fmt.freq; + mconfig->out_fmt.bit_depth = dfw_config->out_fmt.bit_depth; + mconfig->out_fmt.valid_bit_depth = dfw_config->out_fmt.valid_bit_depth; + mconfig->out_fmt.ch_cfg = dfw_config->out_fmt.ch_cfg; + mconfig->params_fixup = dfw_config->params_fixup; + mconfig->converter = dfw_config->converter; + mconfig->m_type = dfw_config->module_type; + mconfig->vbus_id = dfw_config->vbus_id; + + pipe = skl_tplg_add_pipe(bus->dev, skl, &dfw_config->pipe); + if (pipe) + mconfig->pipe = pipe; + + mconfig->dev_type = dfw_config->dev_type; + mconfig->hw_conn_type = dfw_config->hw_conn_type; + mconfig->time_slot = dfw_config->time_slot; + mconfig->formats_config.caps_size = dfw_config->caps.caps_size; + + mconfig->m_in_pin = devm_kzalloc(bus->dev, (mconfig->max_in_queue) * + sizeof(*mconfig->m_in_pin), + GFP_KERNEL); + if (!mconfig->m_in_pin) + return -ENOMEM; + + mconfig->m_out_pin = devm_kzalloc(bus->dev, (mconfig->max_in_queue) * + sizeof(*mconfig->m_out_pin), + GFP_KERNEL); + if (!mconfig->m_out_pin) + return -ENOMEM; + + skl_fill_module_pin_info(bus->dev, mconfig->m_in_pin, + mconfig->max_in_queue); + skl_fill_module_pin_info(bus->dev, mconfig->m_out_pin, + mconfig->max_out_queue); + + if (mconfig->formats_config.caps_size == 0) + goto bind_event; + + mconfig->formats_config.caps = (u32 *)devm_kzalloc(bus->dev, + mconfig->formats_config.caps_size, GFP_KERNEL); + + if (mconfig->formats_config.caps == NULL) + return -ENOMEM; + + memcpy(mconfig->formats_config.caps, dfw_config->caps.caps, + dfw_config->caps.caps_size); + +bind_event: + if (tplg_w->event_type == 0) { + dev_info(bus->dev, "ASoC: No event handler required\n"); + return 0; + } + + ret = snd_soc_tplg_widget_bind_event(w, skl_tplg_widget_ops, + ARRAY_SIZE(skl_tplg_widget_ops), tplg_w->event_type); + + if (ret) { + dev_err(bus->dev, "%s: No matching event handlers found for %d\n", + __func__, tplg_w->event_type); + return -EINVAL; + } + + return 0; +} + +static struct snd_soc_tplg_ops skl_tplg_ops = { + .widget_load = skl_tplg_widget_load, +}; + +/* This will be read from topology manifest, currently defined here */ +#define SKL_MAX_MCPS 30000000 +#define SKL_FW_MAX_MEM 1000000 + +/* + * SKL topology init routine + */ +int skl_tplg_init(struct snd_soc_platform *platform, struct hdac_ext_bus *ebus) +{ + int ret; + const struct firmware *fw; + struct hdac_bus *bus = ebus_to_hbus(ebus); + struct skl *skl = ebus_to_skl(ebus); + + ret = request_firmware(&fw, "dfw_sst.bin", bus->dev); + if (ret < 0) { + dev_err(bus->dev, "config firmware %s request failed with %d\n", + "dfw_sst.bin", ret); + return ret; + } + + /* + * The complete tplg for SKL is loaded as index 0, we don't use + * any other index + */ + ret = snd_soc_tplg_component_load(&platform->component, &skl_tplg_ops, fw, 0); + if (ret < 0) { + dev_err(bus->dev, "tplg component load failed%d\n", ret); + return -EINVAL; + } + + skl->resource.max_mcps = SKL_MAX_MCPS; + skl->resource.max_mem = SKL_FW_MAX_MEM; + + return 0; +} diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index 12db94d238f2..0c83dc3ea3e2 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -291,7 +291,6 @@ struct skl_module_cfg *skl_tplg_fe_get_cpr_module( int skl_tplg_update_pipe_params(struct device *dev, struct skl_module_cfg *mconfig, struct skl_pipe_params *params);

- int skl_create_pipeline(struct skl_sst *ctx, struct skl_pipe *pipe);

int skl_run_pipe(struct skl_sst *ctx, struct skl_pipe *pipe); diff --git a/sound/soc/intel/skylake/skl-tplg-interface.h b/sound/soc/intel/skylake/skl-tplg-interface.h index a50689825bca..d14f7fe64aa8 100644 --- a/sound/soc/intel/skylake/skl-tplg-interface.h +++ b/sound/soc/intel/skylake/skl-tplg-interface.h @@ -19,6 +19,29 @@ #ifndef __HDA_TPLG_INTERFACE_H__ #define __HDA_TPLG_INTERFACE_H__

+/* + * Default types range from 0~12. type can range from 0 to 0xff + * SST types start at higher to avoid any overlapping in future + */ +#define SOC_CONTROL_TYPE_HDA_SST_ALGO_PARAMS 0x100 +#define SOC_CONTROL_TYPE_HDA_SST_MUX 0x101 +#define SOC_CONTROL_TYPE_HDA_SST_MIX 0x101 +#define SOC_CONTROL_TYPE_HDA_SST_BYTE 0x103 + +#define HDA_SST_CFG_MAX 900 /* size of copier cfg*/ +#define MAX_IN_QUEUE 8 +#define MAX_OUT_QUEUE 8 + +/* Event types goes here */ +/* Reserve event type 0 for no event handlers */ +enum skl_event_types { + SKL_EVENT_NONE = 0, + SKL_MIXER_EVENT, + SKL_MUX_EVENT, + SKL_VMIXER_EVENT, + SKL_PGA_EVENT +}; + /** * enum skl_ch_cfg - channel configuration * @@ -85,4 +108,61 @@ enum skl_dev_type { SKL_DEVICE_HDALINK = 0x4, SKL_DEVICE_NONE }; + +struct skl_dfw_module_pin { + u16 module_id; + u16 instance_id; + u8 pin_id; + bool is_dynamic; +} __packed; + +struct skl_dfw_module_fmt { + u32 channels; + u32 freq; + u32 bit_depth; + u32 valid_bit_depth; + u32 ch_cfg; +} __packed; + +struct skl_dfw_module_caps { + u32 caps_size; + u32 caps[HDA_SST_CFG_MAX]; +}; + +struct skl_dfw_pipe { + u8 pipe_id; + u8 pipe_priority; + u16 conn_type; + u32 memory_pages; +} __packed; + +struct skl_dfw_module { + u16 module_id; + u16 instance_id; + u32 max_mcps; + u8 core_id; + u8 max_in_queue; + u8 max_out_queue; + u8 is_loadable; + u8 conn_type; + u8 dev_type; + u8 hw_conn_type; + u8 time_slot; + u32 obs; + u32 ibs; + u32 params_fixup; + u32 converter; + u32 module_type; + u32 vbus_id; + struct skl_dfw_pipe pipe; + struct skl_dfw_module_fmt in_fmt; + struct skl_dfw_module_fmt out_fmt; + struct skl_dfw_module_caps caps; +} __packed; + +struct skl_dfw_algo_data { + u32 max; + char *params; +} __packed; + #endif

From: Jeeja KP jeeja.kp@intel.com

Initialize and creates DSP controls if processing pipe capability is supported by HW. Updates the dma_id, hw_params to module param to be used when DSP module has to be configured.

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-pcm.c | 143 ++++++++++++++++++++++++++++++-------- 1 file changed, 114 insertions(+), 29 deletions(-)

diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index bea26730873c..7f352cc2eb9d 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -24,6 +24,7 @@ #include <sound/pcm_params.h> #include <sound/soc.h> #include "skl.h" +#include "skl-topology.h"

#define HDA_MONO 1 #define HDA_STEREO 2 @@ -214,6 +215,8 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream, struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev); struct hdac_ext_stream *stream = get_hdac_ext_stream(substream); struct snd_pcm_runtime *runtime = substream->runtime; + struct skl_pipe_params p_params = {0}; + struct skl_module_cfg *m_cfg; int ret, dma_id;

dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); @@ -228,6 +231,16 @@ static int skl_pcm_hw_params(struct snd_pcm_substream *substream, dma_id = hdac_stream(stream)->stream_tag - 1; dev_dbg(dai->dev, "dma_id=%d\n", dma_id);

+ p_params.s_fmt = snd_pcm_format_width(params_format(params)); + p_params.ch = params_channels(params); + p_params.s_freq = params_rate(params); + p_params.host_dma_id = dma_id; + p_params.stream = substream->stream; + + m_cfg = skl_tplg_fe_get_cpr_module(dai, p_params.stream); + if (m_cfg) + skl_tplg_update_pipe_params(dai->dev, m_cfg, &p_params); + return 0; }

@@ -268,6 +281,46 @@ static int skl_pcm_hw_free(struct snd_pcm_substream *substream, return skl_substream_free_pages(ebus_to_hbus(ebus), substream); }

+static int skl_be_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct skl_pipe_params p_params = {0}; + + p_params.s_fmt = snd_pcm_format_width(params_format(params)); + p_params.ch = params_channels(params); + p_params.s_freq = params_rate(params); + p_params.stream = substream->stream; + skl_tplg_be_update_params(dai, &p_params); + + return 0; +} + +static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct skl *skl = get_skl_ctx(dai->dev); + struct skl_sst *ctx = skl->skl_sst; + struct skl_module_cfg *mconfig; + + mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream); + if (!mconfig) + return -EIO; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + return skl_run_pipe(ctx, mconfig->pipe); + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + return skl_stop_pipe(ctx, mconfig->pipe); + + default: + return 0; + } +} + static int skl_link_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -277,9 +330,8 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream); struct skl_dma_params *dma_params; struct snd_soc_dai *codec_dai = rtd->codec_dai; - int dma_id; + struct skl_pipe_params p_params = {0};

- pr_debug("%s\n", __func__); link_dev = snd_hdac_ext_stream_assign(ebus, substream, HDAC_EXT_STREAM_TYPE_LINK); if (!link_dev) @@ -293,7 +345,14 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream, if (dma_params) dma_params->stream_tag = hdac_stream(link_dev)->stream_tag; snd_soc_dai_set_dma_data(codec_dai, substream, (void *)dma_params); - dma_id = hdac_stream(link_dev)->stream_tag - 1; + + p_params.s_fmt = snd_pcm_format_width(params_format(params)); + p_params.ch = params_channels(params); + p_params.s_freq = params_rate(params); + p_params.stream = substream->stream; + p_params.link_dma_id = hdac_stream(link_dev)->stream_tag - 1; + + skl_tplg_be_update_params(dai, &p_params);

return 0; } @@ -308,27 +367,12 @@ static int skl_link_pcm_prepare(struct snd_pcm_substream *substream, unsigned int format_val = 0; struct skl_dma_params *dma_params; struct snd_soc_dai *codec_dai = rtd->codec_dai; - struct snd_pcm_hw_params *params; - struct snd_interval *channels, *rate; struct hdac_ext_link *link;

- dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name); if (link_dev->link_prepared) { - dev_dbg(dai->dev, "already stream is prepared - returning\n"); + dev_info(dai->dev, "already stream is prepared - returning\n"); return 0; } - params = devm_kzalloc(dai->dev, sizeof(*params), GFP_KERNEL); - if (params == NULL) - return -ENOMEM; - - channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); - channels->min = channels->max = substream->runtime->channels; - rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); - rate->min = rate->max = substream->runtime->rate; - snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT - - SNDRV_PCM_HW_PARAM_FIRST_MASK], - substream->runtime->format); -

dma_params = (struct skl_dma_params *) snd_soc_dai_get_dma_data(codec_dai, substream); @@ -399,13 +443,13 @@ static int skl_link_hw_free(struct snd_pcm_substream *substream, return 0; }

-static int skl_hda_be_startup(struct snd_pcm_substream *substream, +static int skl_be_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { return pm_runtime_get_sync(dai->dev); }

-static void skl_hda_be_shutdown(struct snd_pcm_substream *substream, +static void skl_be_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { pm_runtime_mark_last_busy(dai->dev); @@ -418,20 +462,28 @@ static struct snd_soc_dai_ops skl_pcm_dai_ops = { .prepare = skl_pcm_prepare, .hw_params = skl_pcm_hw_params, .hw_free = skl_pcm_hw_free, + .trigger = skl_pcm_trigger, };

static struct snd_soc_dai_ops skl_dmic_dai_ops = { - .startup = skl_hda_be_startup, - .shutdown = skl_hda_be_shutdown, + .startup = skl_be_startup, + .hw_params = skl_be_hw_params, + .shutdown = skl_be_shutdown, +}; + +static struct snd_soc_dai_ops skl_be_ssp_dai_ops = { + .startup = skl_be_startup, + .hw_params = skl_be_hw_params, + .shutdown = skl_be_shutdown, };

static struct snd_soc_dai_ops skl_link_dai_ops = { - .startup = skl_hda_be_startup, + .startup = skl_be_startup, .prepare = skl_link_pcm_prepare, .hw_params = skl_link_hw_params, .hw_free = skl_link_hw_free, .trigger = skl_link_pcm_trigger, - .shutdown = skl_hda_be_shutdown, + .shutdown = skl_be_shutdown, };

static struct snd_soc_dai_driver skl_platform_dai[] = { @@ -488,6 +540,24 @@ static struct snd_soc_dai_driver skl_platform_dai[] = { }, /* BE CPU Dais */ { + .name = "SSP0 Pin", + .ops = &skl_be_ssp_dai_ops, + .playback = { + .stream_name = "ssp0 Tx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .stream_name = "ssp0 Rx", + .channels_min = HDA_STEREO, + .channels_max = HDA_STEREO, + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, +}, +{ .name = "iDisp Pin", .ops = &skl_link_dai_ops, .playback = { @@ -544,7 +614,7 @@ static int skl_platform_open(struct snd_pcm_substream *substream) return 0; }

-static int skl_pcm_trigger(struct snd_pcm_substream *substream, +static int skl_coupled_trigger(struct snd_pcm_substream *substream, int cmd) { struct hdac_ext_bus *ebus = get_bus_ctx(substream); @@ -618,7 +688,7 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, return 0; }

-static int skl_dsp_trigger(struct snd_pcm_substream *substream, +static int skl_decoupled_trigger(struct snd_pcm_substream *substream, int cmd) { struct hdac_ext_bus *ebus = get_bus_ctx(substream); @@ -675,9 +745,9 @@ static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream, struct hdac_ext_bus *ebus = get_bus_ctx(substream);

if (ebus->ppcap) - return skl_dsp_trigger(substream, cmd); + return skl_decoupled_trigger(substream, cmd); else - return skl_pcm_trigger(substream, cmd); + return skl_coupled_trigger(substream, cmd); }

/* calculate runtime delay from LPIB */ @@ -844,7 +914,17 @@ static int skl_pcm_new(struct snd_soc_pcm_runtime *rtd) return retval; }

+static int skl_platform_soc_probe(struct snd_soc_platform *platform) +{ + struct hdac_ext_bus *ebus = dev_get_drvdata(platform->dev); + + if (ebus->ppcap) + return skl_tplg_init(platform, ebus); + + return 0; +} static struct snd_soc_platform_driver skl_platform_drv = { + .probe = skl_platform_soc_probe, .ops = &skl_platform_ops, .pcm_new = skl_pcm_new, .pcm_free = skl_pcm_free, @@ -857,6 +937,11 @@ static const struct snd_soc_component_driver skl_component = { int skl_platform_register(struct device *dev) { int ret; + struct hdac_ext_bus *ebus = dev_get_drvdata(dev); + struct skl *skl = ebus_to_skl(ebus); + + INIT_LIST_HEAD(&skl->ppl_list); + INIT_LIST_HEAD(&skl->dapm_path_list);

ret = snd_soc_register_platform(dev, &skl_platform_drv); if (ret) {

From: Jeeja KP jeeja.kp@intel.com

Load and Initialize Non HDA Link Table in Skylake driver to get platform configuration.

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 2f1890e703c6..ca135b8ab5c0 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -458,6 +458,11 @@ static int skl_probe(struct pci_dev *pci, if (err < 0) goto out_free;

+ skl->nhlt = skl_nhlt_init(bus->dev); + + if (skl->nhlt == NULL) + goto out_free; + pci_set_drvdata(skl->pci, ebus);

/* check if dsp is there */