The patch
ASoC: Intel: Skylake: Ensure dai and dailink registration happens in sequence.
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
From 752c93aa72e60ba573bbcfcd508b9cc550db0b94 Mon Sep 17 00:00:00 2001
From: Pankaj Bharadiya pankaj.laxminarayan.bharadiya@intel.com Date: Mon, 18 Dec 2017 10:46:50 +0530 Subject: [PATCH] ASoC: Intel: Skylake: Ensure dai and dailink registration happens in sequence.
Platform registration happens in probe work handler whereas machine device is registered during skl_probe. This sometimes results in cpu dais not found if the work handler is sufficiently delayed due to system load, even with deferred probe of machine driver.
So move machine device registration after registering platform.
Signed-off-by: Pankaj Bharadiya pankaj.laxminarayan.bharadiya@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@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 --- sound/soc/intel/skylake/skl.c | 56 +++++++++++++++++++++++++++++-------------- sound/soc/intel/skylake/skl.h | 1 + 2 files changed, 39 insertions(+), 18 deletions(-)
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index a89592b2850e..32ce64c6b2dc 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -453,19 +453,34 @@ static struct skl_ssp_clk skl_ssp_clks[] = { {.name = "ssp5_sclkfs"}, };
-static int skl_machine_device_register(struct skl *skl, void *driver_data) +static int skl_find_machine(struct skl *skl, void *driver_data) { - struct hdac_bus *bus = ebus_to_hbus(&skl->ebus); - struct platform_device *pdev; struct snd_soc_acpi_mach *mach = driver_data; - int ret; + struct hdac_bus *bus = ebus_to_hbus(&skl->ebus); + struct skl_machine_pdata *pdata;
mach = snd_soc_acpi_find_machine(mach); if (mach == NULL) { dev_err(bus->dev, "No matching machine driver found\n"); return -ENODEV; } + + skl->mach = mach; skl->fw_name = mach->fw_filename; + pdata = skl->mach->pdata; + + if (mach->pdata) + skl->use_tplg_pcm = pdata->use_tplg_pcm; + + return 0; +} + +static int skl_machine_device_register(struct skl *skl) +{ + struct hdac_bus *bus = ebus_to_hbus(&skl->ebus); + struct snd_soc_acpi_mach *mach = skl->mach; + struct platform_device *pdev; + int ret;
pdev = platform_device_alloc(mach->drv_name, -1); if (pdev == NULL) { @@ -480,11 +495,8 @@ static int skl_machine_device_register(struct skl *skl, void *driver_data) return -EIO; }
- if (mach->pdata) { - skl->use_tplg_pcm = - ((struct skl_machine_pdata *)mach->pdata)->use_tplg_pcm; + if (mach->pdata) dev_set_drvdata(&pdev->dev, mach->pdata); - }
skl->i2s_dev = pdev;
@@ -701,18 +713,30 @@ static void skl_probe_work(struct work_struct *work) /* create codec instances */ skl_codec_create(ebus);
+ /* register platform dai and controls */ + err = skl_platform_register(bus->dev); + if (err < 0) { + dev_err(bus->dev, "platform register failed: %d\n", err); + return; + } + + if (bus->ppcap) { + err = skl_machine_device_register(skl); + if (err < 0) { + dev_err(bus->dev, "machine register failed: %d\n", err); + goto out_err; + } + } + if (IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)) { err = snd_hdac_display_power(bus, false); if (err < 0) { dev_err(bus->dev, "Cannot turn off display power on i915\n"); + skl_machine_device_unregister(skl); return; } }
- /* register platform dai and controls */ - err = skl_platform_register(bus->dev); - if (err < 0) - return; /* * we are done probing so decrement link counts */ @@ -882,18 +906,16 @@ static int skl_probe(struct pci_dev *pci, if (err < 0) goto out_clk_free;
- err = skl_machine_device_register(skl, - (void *)pci_id->driver_data); + err = skl_find_machine(skl, (void *)pci_id->driver_data); if (err < 0) goto out_nhlt_free;
err = skl_init_dsp(skl); if (err < 0) { dev_dbg(bus->dev, "error failed to register dsp\n"); - goto out_mach_free; + goto out_nhlt_free; } skl->skl_sst->enable_miscbdcge = skl_enable_miscbdcge; - } if (bus->mlcap) snd_hdac_ext_bus_get_ml_capabilities(ebus); @@ -911,8 +933,6 @@ static int skl_probe(struct pci_dev *pci,
out_dsp_free: skl_free_dsp(skl); -out_mach_free: - skl_machine_device_unregister(skl); out_clk_free: skl_clock_device_unregister(skl); out_nhlt_free: diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h index 46dda88ba139..f411579bc713 100644 --- a/sound/soc/intel/skylake/skl.h +++ b/sound/soc/intel/skylake/skl.h @@ -94,6 +94,7 @@ struct skl { struct skl_module **modules; bool use_tplg_pcm; struct skl_fw_config cfg; + struct snd_soc_acpi_mach *mach; };
#define skl_to_ebus(s) (&(s)->ebus)