[alsa-devel] [PATCH] ASoC: intel: Fix sst-dsp dependency on dw stuff
Takashi Iwai
tiwai at suse.de
Mon Jul 11 10:39:11 CEST 2016
The recent commit [a92ea59b74e2: ASoC: Intel: sst: only select
sst-firmware when DW DMAC is built-in] introduced more strict kconfig
dependency (depends on DW_DMAC_CORE=y) for avoiding the build failures
due to dependency messes in intel-sst. This makes, however, it
impossible to use this driver with the modularized systems,
i.e. typically on Linux distros.
The problem addressed in the commit above is that sst_dsp_new() and
sst_dsp_free() includes the firmware init / finish that call dw_*()
functions. Thus building it as built-in with DW_DMAC_CORE module
results in the missing symbols.
However, these sst_dsp functions are basically called only from the
drivers that depend on DW_DMAC_CORE already. That is, once when these
functions are split out, the rest can be independent from dw stuff.
This patch attempts to solve the issue by the following:
- Split sst-dsp stuff into two modules: snd-soc-sst-dsp and
snd-soc-sst-firmware.
- Move sst_dsp_new() and sst_dsp_free() to the latter module so that
the former module can be independent from DW_DMAC_CORE.
- Add a new kconfig SND_SOC_INTEL_SST_FIRMWARE to select the latter
module by machine drivers.
One only remaining pitfall is that each machine driver has to select
SND_SOC_INTEL_SST_FIRMWARE carefully depending on DW_DMAC_CORE.
This can't be done cleanly due to the restriction of the current
kbuild.
Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=988117
Fixes: a92ea59b74e2 ('ASoC: Intel: sst: only select sst-firmware when DW DMAC is built-in')
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
sound/soc/intel/Kconfig | 18 +++++++---
sound/soc/intel/common/Makefile | 4 +--
sound/soc/intel/common/sst-dsp-priv.h | 4 ---
sound/soc/intel/common/sst-dsp.c | 67 ----------------------------------
sound/soc/intel/common/sst-dsp.h | 2 +-
sound/soc/intel/common/sst-firmware.c | 68 +++++++++++++++++++++++++++++++++++
6 files changed, 85 insertions(+), 78 deletions(-)
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 9c86459d0fc3..a20c3dfbcb5d 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -32,6 +32,12 @@ config SND_SOC_INTEL_SST
select SND_SOC_INTEL_SST_MATCH if ACPI
depends on (X86 || COMPILE_TEST)
+# firmware stuff depends DW_DMAC_CORE; since there is no depends-on from
+# the reverse selection, each machine driver needs to select
+# SND_SOC_INTEL_SST_FIRMWARE carefully depending on DW_DMAC_CORE
+config SND_SOC_INTEL_SST_FIRMWARE
+ tristate
+
config SND_SOC_INTEL_SST_ACPI
tristate
@@ -47,8 +53,9 @@ config SND_SOC_INTEL_BAYTRAIL
config SND_SOC_INTEL_HASWELL_MACH
tristate "ASoC Audio DSP support for Intel Haswell Lynxpoint"
depends on X86_INTEL_LPSS && I2C && I2C_DESIGNWARE_PLATFORM
- depends on DW_DMAC_CORE=y
+ depends on DW_DMAC_CORE
select SND_SOC_INTEL_SST
+ select SND_SOC_INTEL_SST_FIRMWARE
select SND_SOC_INTEL_HASWELL
select SND_SOC_RT5640
help
@@ -91,8 +98,9 @@ config SND_SOC_INTEL_BXT_RT298_MACH
config SND_SOC_INTEL_BYT_RT5640_MACH
tristate "ASoC Audio driver for Intel Baytrail with RT5640 codec"
depends on X86_INTEL_LPSS && I2C
- depends on DW_DMAC_CORE=y && (SND_SST_IPC_ACPI = n)
+ depends on DW_DMAC_CORE && (SND_SST_IPC_ACPI = n)
select SND_SOC_INTEL_SST
+ select SND_SOC_INTEL_SST_FIRMWARE
select SND_SOC_INTEL_BAYTRAIL
select SND_SOC_RT5640
help
@@ -103,8 +111,9 @@ config SND_SOC_INTEL_BYT_RT5640_MACH
config SND_SOC_INTEL_BYT_MAX98090_MACH
tristate "ASoC Audio driver for Intel Baytrail with MAX98090 codec"
depends on X86_INTEL_LPSS && I2C
- depends on DW_DMAC_CORE=y && (SND_SST_IPC_ACPI = n)
+ depends on DW_DMAC_CORE && (SND_SST_IPC_ACPI = n)
select SND_SOC_INTEL_SST
+ select SND_SOC_INTEL_SST_FIRMWARE
select SND_SOC_INTEL_BAYTRAIL
select SND_SOC_MAX98090
help
@@ -115,8 +124,9 @@ config SND_SOC_INTEL_BROADWELL_MACH
tristate "ASoC Audio DSP support for Intel Broadwell Wildcatpoint"
depends on X86_INTEL_LPSS && I2C && DW_DMAC && \
I2C_DESIGNWARE_PLATFORM
- depends on DW_DMAC_CORE=y
+ depends on DW_DMAC_CORE
select SND_SOC_INTEL_SST
+ select SND_SOC_INTEL_SST_FIRMWARE
select SND_SOC_INTEL_HASWELL
select SND_SOC_RT286
help
diff --git a/sound/soc/intel/common/Makefile b/sound/soc/intel/common/Makefile
index fbbb25c2ceed..1a35149bcad7 100644
--- a/sound/soc/intel/common/Makefile
+++ b/sound/soc/intel/common/Makefile
@@ -2,9 +2,9 @@ snd-soc-sst-dsp-objs := sst-dsp.o
snd-soc-sst-acpi-objs := sst-acpi.o
snd-soc-sst-match-objs := sst-match-acpi.o
snd-soc-sst-ipc-objs := sst-ipc.o
-
-snd-soc-sst-dsp-$(CONFIG_DW_DMAC_CORE) += sst-firmware.o
+snd-soc-sst-firmware-objs := sst-firmware.o
obj-$(CONFIG_SND_SOC_INTEL_SST) += snd-soc-sst-dsp.o snd-soc-sst-ipc.o
obj-$(CONFIG_SND_SOC_INTEL_SST_ACPI) += snd-soc-sst-acpi.o
obj-$(CONFIG_SND_SOC_INTEL_SST_MATCH) += snd-soc-sst-match.o
+obj-$(CONFIG_SND_SOC_INTEL_SST_FIRMWARE) += snd-soc-sst-firmware.o
diff --git a/sound/soc/intel/common/sst-dsp-priv.h b/sound/soc/intel/common/sst-dsp-priv.h
index 97dc1ae05e69..d13c84364c3c 100644
--- a/sound/soc/intel/common/sst-dsp-priv.h
+++ b/sound/soc/intel/common/sst-dsp-priv.h
@@ -383,10 +383,6 @@ struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
u32 index, void *private);
void sst_mem_block_unregister_all(struct sst_dsp *dsp);
-/* Create/Free DMA resources */
-int sst_dma_new(struct sst_dsp *sst);
-void sst_dma_free(struct sst_dma *dma);
-
u32 sst_dsp_get_offset(struct sst_dsp *dsp, u32 offset,
enum sst_mem_type type);
#endif
diff --git a/sound/soc/intel/common/sst-dsp.c b/sound/soc/intel/common/sst-dsp.c
index ff2196ef359f..c00ede4ea4d7 100644
--- a/sound/soc/intel/common/sst-dsp.c
+++ b/sound/soc/intel/common/sst-dsp.c
@@ -420,73 +420,6 @@ void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes)
}
EXPORT_SYMBOL_GPL(sst_dsp_inbox_read);
-#ifdef CONFIG_DW_DMAC_CORE
-struct sst_dsp *sst_dsp_new(struct device *dev,
- struct sst_dsp_device *sst_dev, struct sst_pdata *pdata)
-{
- struct sst_dsp *sst;
- int err;
-
- dev_dbg(dev, "initialising audio DSP id 0x%x\n", pdata->id);
-
- sst = devm_kzalloc(dev, sizeof(*sst), GFP_KERNEL);
- if (sst == NULL)
- return NULL;
-
- spin_lock_init(&sst->spinlock);
- mutex_init(&sst->mutex);
- sst->dev = dev;
- sst->dma_dev = pdata->dma_dev;
- sst->thread_context = sst_dev->thread_context;
- sst->sst_dev = sst_dev;
- sst->id = pdata->id;
- sst->irq = pdata->irq;
- sst->ops = sst_dev->ops;
- sst->pdata = pdata;
- INIT_LIST_HEAD(&sst->used_block_list);
- INIT_LIST_HEAD(&sst->free_block_list);
- INIT_LIST_HEAD(&sst->module_list);
- INIT_LIST_HEAD(&sst->fw_list);
- INIT_LIST_HEAD(&sst->scratch_block_list);
-
- /* Initialise SST Audio DSP */
- if (sst->ops->init) {
- err = sst->ops->init(sst, pdata);
- if (err < 0)
- return NULL;
- }
-
- /* Register the ISR */
- err = request_threaded_irq(sst->irq, sst->ops->irq_handler,
- sst_dev->thread, IRQF_SHARED, "AudioDSP", sst);
- if (err)
- goto irq_err;
-
- err = sst_dma_new(sst);
- if (err)
- dev_warn(dev, "sst_dma_new failed %d\n", err);
-
- return sst;
-
-irq_err:
- if (sst->ops->free)
- sst->ops->free(sst);
-
- return NULL;
-}
-EXPORT_SYMBOL_GPL(sst_dsp_new);
-
-void sst_dsp_free(struct sst_dsp *sst)
-{
- free_irq(sst->irq, sst);
- if (sst->ops->free)
- sst->ops->free(sst);
-
- sst_dma_free(sst->dma);
-}
-EXPORT_SYMBOL_GPL(sst_dsp_free);
-#endif
-
/* Module information */
MODULE_AUTHOR("Liam Girdwood");
MODULE_DESCRIPTION("Intel SST Core");
diff --git a/sound/soc/intel/common/sst-dsp.h b/sound/soc/intel/common/sst-dsp.h
index 0b84c719ec48..859f0de00339 100644
--- a/sound/soc/intel/common/sst-dsp.h
+++ b/sound/soc/intel/common/sst-dsp.h
@@ -216,7 +216,7 @@ struct sst_pdata {
void *dsp;
};
-#ifdef CONFIG_DW_DMAC_CORE
+#if IS_ENABLED(CONFIG_DW_DMAC_CORE)
/* Initialization */
struct sst_dsp *sst_dsp_new(struct device *dev,
struct sst_dsp_device *sst_dev, struct sst_pdata *pdata);
diff --git a/sound/soc/intel/common/sst-firmware.c b/sound/soc/intel/common/sst-firmware.c
index 25993527370b..a086c35f91bb 100644
--- a/sound/soc/intel/common/sst-firmware.c
+++ b/sound/soc/intel/common/sst-firmware.c
@@ -1211,3 +1211,71 @@ u32 sst_dsp_get_offset(struct sst_dsp *dsp, u32 offset,
}
}
EXPORT_SYMBOL_GPL(sst_dsp_get_offset);
+
+struct sst_dsp *sst_dsp_new(struct device *dev,
+ struct sst_dsp_device *sst_dev, struct sst_pdata *pdata)
+{
+ struct sst_dsp *sst;
+ int err;
+
+ dev_dbg(dev, "initialising audio DSP id 0x%x\n", pdata->id);
+
+ sst = devm_kzalloc(dev, sizeof(*sst), GFP_KERNEL);
+ if (sst == NULL)
+ return NULL;
+
+ spin_lock_init(&sst->spinlock);
+ mutex_init(&sst->mutex);
+ sst->dev = dev;
+ sst->dma_dev = pdata->dma_dev;
+ sst->thread_context = sst_dev->thread_context;
+ sst->sst_dev = sst_dev;
+ sst->id = pdata->id;
+ sst->irq = pdata->irq;
+ sst->ops = sst_dev->ops;
+ sst->pdata = pdata;
+ INIT_LIST_HEAD(&sst->used_block_list);
+ INIT_LIST_HEAD(&sst->free_block_list);
+ INIT_LIST_HEAD(&sst->module_list);
+ INIT_LIST_HEAD(&sst->fw_list);
+ INIT_LIST_HEAD(&sst->scratch_block_list);
+
+ /* Initialise SST Audio DSP */
+ if (sst->ops->init) {
+ err = sst->ops->init(sst, pdata);
+ if (err < 0)
+ return NULL;
+ }
+
+ /* Register the ISR */
+ err = request_threaded_irq(sst->irq, sst->ops->irq_handler,
+ sst_dev->thread, IRQF_SHARED, "AudioDSP", sst);
+ if (err)
+ goto irq_err;
+
+ err = sst_dma_new(sst);
+ if (err)
+ dev_warn(dev, "sst_dma_new failed %d\n", err);
+
+ return sst;
+
+irq_err:
+ if (sst->ops->free)
+ sst->ops->free(sst);
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_dsp_new);
+
+void sst_dsp_free(struct sst_dsp *sst)
+{
+ free_irq(sst->irq, sst);
+ if (sst->ops->free)
+ sst->ops->free(sst);
+
+ sst_dma_free(sst->dma);
+}
+EXPORT_SYMBOL_GPL(sst_dsp_free);
+
+MODULE_DESCRIPTION("Intel SST Firmware Loader");
+MODULE_LICENSE("GPL v2");
--
2.9.0
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