[alsa-devel] [PATCH 0/4] ASoC: Intel: Skylake: Enable runtime pm
Although driver already has runtime pm handlers, some of things were missing to have it properly functional, so add the fixes and correct handling
Jeeja KP (4): ASoC: Intel: Skylake: Check CPA bit in DSP core power down ASoC: Intel: Skylake: Verify the status bit before handling interrupt ASoC: Intel: Skylake: Correct the runtime handler behaviour ASoC: Intel: Skylake: power down all link in suspend
sound/soc/intel/common/sst-dsp-priv.h | 1 + sound/soc/intel/skylake/skl-sst-dsp.c | 7 ++++- sound/soc/intel/skylake/skl-sst-ipc.c | 12 ++++++++ sound/soc/intel/skylake/skl-sst-ipc.h | 1 + sound/soc/intel/skylake/skl-sst.c | 56 +++++++++++++++++++---------------- sound/soc/intel/skylake/skl.c | 3 ++ 6 files changed, 53 insertions(+), 27 deletions(-)
From: Jeeja KP jeeja.kp@intel.com
Skylake driver will set the SPA bit to 0 to turn off the DSP core. Driver will poll the Current Power Active (CPA) bit to match the Set Power Active (SPA) bit value. When CPA bit matches the value of SPA bit, the achieved power state has reached.
In case of DSP power down, register that was polled is SPA instead of CPA. This patch corrects the register to be polled in case of DSP power down.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-sst-dsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c index 94875b008b0b..194bd0036454 100644 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ b/sound/soc/intel/skylake/skl-sst-dsp.c @@ -175,7 +175,7 @@ static int skl_dsp_core_power_down(struct sst_dsp *ctx) /* poll with timeout to check if operation successful */ return sst_dsp_register_poll(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_SPA_MASK, + SKL_ADSPCS_CPA_MASK, 0, SKL_DSP_PD_TO, "Power down");
The patch
ASoC: Intel: Skylake: Check CPA bit in DSP core power down
has been applied to the asoc tree at
git://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.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 6ea8ba33e65d3d284de7e7373939352e2c728f10 Mon Sep 17 00:00:00 2001
From: Jeeja KP jeeja.kp@intel.com Date: Fri, 9 Oct 2015 09:01:48 +0100 Subject: [PATCH] ASoC: Intel: Skylake: Check CPA bit in DSP core power down
Skylake driver will set the SPA bit to 0 to turn off the DSP core. Driver will poll the Current Power Active (CPA) bit to match the Set Power Active (SPA) bit value. When CPA bit matches the value of SPA bit, the achieved power state has reached.
In case of DSP power down, register that was polled is SPA instead of CPA. This patch corrects the register to be polled in case of DSP power down.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/skylake/skl-sst-dsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c index 94875b0..194bd00 100644 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ b/sound/soc/intel/skylake/skl-sst-dsp.c @@ -175,7 +175,7 @@ static int skl_dsp_core_power_down(struct sst_dsp *ctx) /* poll with timeout to check if operation successful */ return sst_dsp_register_poll(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_SPA_MASK, + SKL_ADSPCS_CPA_MASK, 0, SKL_DSP_PD_TO, "Power down");
From: Jeeja KP jeeja.kp@intel.com
Like we have in legacy mode HDA driver, we need to check the status bit and handle interrupt only when it is not zero or all bits set. We typically see the status as all 1's when controller resumes from suspend, So add the check here as well and don't handle for these cases.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-sst-dsp.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c index 194bd0036454..1bfb7f63b572 100644 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ b/sound/soc/intel/skylake/skl-sst-dsp.c @@ -262,6 +262,11 @@ irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id) val = sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPIS); ctx->intr_status = val;
+ if (val == 0xffffffff) { + spin_unlock(&ctx->spinlock); + return IRQ_NONE; + } + if (val & SKL_ADSPIS_IPC) { skl_ipc_int_disable(ctx); result = IRQ_WAKE_THREAD;
The patch
ASoC: Intel: Skylake: Verify the status bit before handling interrupt
has been applied to the asoc tree at
git://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.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From def656fe22abb4fbf174a982dcef1d40274ddb11 Mon Sep 17 00:00:00 2001
From: Jeeja KP jeeja.kp@intel.com Date: Fri, 9 Oct 2015 09:01:49 +0100 Subject: [PATCH] ASoC: Intel: Skylake: Verify the status bit before handling interrupt
Like we have in legacy mode HDA driver, we need to check the status bit and handle interrupt only when it is not zero or all bits set. We typically see the status as all 1's when controller resumes from suspend, So add the check here as well and don't handle for these cases.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/skylake/skl-sst-dsp.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c index 194bd00..1bfb7f6 100644 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ b/sound/soc/intel/skylake/skl-sst-dsp.c @@ -262,6 +262,11 @@ irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id) val = sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPIS); ctx->intr_status = val;
+ if (val == 0xffffffff) { + spin_unlock(&ctx->spinlock); + return IRQ_NONE; + } + if (val & SKL_ADSPIS_IPC) { skl_ipc_int_disable(ctx); result = IRQ_WAKE_THREAD;
From: Jeeja KP jeeja.kp@intel.com
On runtime pm resume, we need to download the firmware, also on suspend we need to ensure all the interrupts from controller and DSP are disabled.
Also since we download the firmware on resume, we don't need to do so on init, so remove that bit
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/common/sst-dsp-priv.h | 1 + sound/soc/intel/skylake/skl-sst-ipc.c | 12 ++++++++ sound/soc/intel/skylake/skl-sst-ipc.h | 1 + sound/soc/intel/skylake/skl-sst.c | 56 +++++++++++++++++++---------------- 4 files changed, 44 insertions(+), 26 deletions(-)
diff --git a/sound/soc/intel/common/sst-dsp-priv.h b/sound/soc/intel/common/sst-dsp-priv.h index cbd568eac033..2151652d37b7 100644 --- a/sound/soc/intel/common/sst-dsp-priv.h +++ b/sound/soc/intel/common/sst-dsp-priv.h @@ -314,6 +314,7 @@ struct sst_dsp { int sst_state; struct skl_cl_dev cl_dev; u32 intr_status; + const struct firmware *fw; };
/* Size optimised DRAM/IRAM memcpy */ diff --git a/sound/soc/intel/skylake/skl-sst-ipc.c b/sound/soc/intel/skylake/skl-sst-ipc.c index 937a0a3a63a0..3345ea0d4414 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.c +++ b/sound/soc/intel/skylake/skl-sst-ipc.c @@ -464,6 +464,18 @@ void skl_ipc_op_int_enable(struct sst_dsp *ctx) SKL_ADSP_REG_HIPCCTL_BUSY, SKL_ADSP_REG_HIPCCTL_BUSY); }
+void skl_ipc_op_int_disable(struct sst_dsp *ctx) +{ + /* disable IPC DONE interrupt */ + sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_HIPCCTL, + SKL_ADSP_REG_HIPCCTL_DONE, 0); + + /* Disable IPC BUSY interrupt */ + sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_HIPCCTL, + SKL_ADSP_REG_HIPCCTL_BUSY, 0); + +} + bool skl_ipc_int_status(struct sst_dsp *ctx) { return sst_dsp_shim_read_unlocked(ctx, diff --git a/sound/soc/intel/skylake/skl-sst-ipc.h b/sound/soc/intel/skylake/skl-sst-ipc.h index 9f5f67202858..f1a154e45dc3 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.h +++ b/sound/soc/intel/skylake/skl-sst-ipc.h @@ -116,6 +116,7 @@ int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
void skl_ipc_int_enable(struct sst_dsp *dsp); void skl_ipc_op_int_enable(struct sst_dsp *ctx); +void skl_ipc_op_int_disable(struct sst_dsp *ctx); void skl_ipc_int_disable(struct sst_dsp *dsp);
bool skl_ipc_int_status(struct sst_dsp *dsp); diff --git a/sound/soc/intel/skylake/skl-sst.c b/sound/soc/intel/skylake/skl-sst.c index c18ea51b7484..3b83dc99f1d4 100644 --- a/sound/soc/intel/skylake/skl-sst.c +++ b/sound/soc/intel/skylake/skl-sst.c @@ -70,15 +70,31 @@ static int skl_transfer_firmware(struct sst_dsp *ctx, static int skl_load_base_firmware(struct sst_dsp *ctx) { int ret = 0, i; - const struct firmware *fw = NULL; struct skl_sst *skl = ctx->thread_context; u32 reg;
- ret = request_firmware(&fw, "dsp_fw_release.bin", ctx->dev); + skl->boot_complete = false; + init_waitqueue_head(&skl->boot_wait); + + if (ctx->fw == NULL) { + ret = request_firmware(&ctx->fw, "dsp_fw_release.bin", ctx->dev); + if (ret < 0) { + dev_err(ctx->dev, "Request firmware failed %d\n", ret); + skl_dsp_disable_core(ctx); + return -EIO; + } + } + + ret = skl_dsp_boot(ctx); if (ret < 0) { - dev_err(ctx->dev, "Request firmware failed %d\n", ret); - skl_dsp_disable_core(ctx); - return -EIO; + dev_err(ctx->dev, "Boot dsp core failed ret: %d", ret); + goto skl_load_base_firmware_failed; + } + + ret = skl_cldma_prepare(ctx); + if (ret < 0) { + dev_err(ctx->dev, "CL dma prepare failed : %d", ret); + goto skl_load_base_firmware_failed; }
/* enable Interrupt */ @@ -102,7 +118,7 @@ static int skl_load_base_firmware(struct sst_dsp *ctx) goto skl_load_base_firmware_failed; }
- ret = skl_transfer_firmware(ctx, fw->data, fw->size); + ret = skl_transfer_firmware(ctx, ctx->fw->data, ctx->fw->size); if (ret < 0) { dev_err(ctx->dev, "Transfer firmware failed%d\n", ret); goto skl_load_base_firmware_failed; @@ -118,13 +134,12 @@ static int skl_load_base_firmware(struct sst_dsp *ctx) dev_dbg(ctx->dev, "Download firmware successful%d\n", ret); skl_dsp_set_state_locked(ctx, SKL_DSP_RUNNING); } - release_firmware(fw); - return 0;
skl_load_base_firmware_failed: skl_dsp_disable_core(ctx); - release_firmware(fw); + release_firmware(ctx->fw); + ctx->fw = NULL; return ret; }
@@ -172,6 +187,12 @@ static int skl_set_dsp_D3(struct sst_dsp *ctx) } skl_dsp_set_state_locked(ctx, SKL_DSP_RESET);
+ /* disable Interrupt */ + ctx->cl_dev.ops.cl_cleanup_controller(ctx); + skl_cldma_int_disable(ctx); + skl_ipc_op_int_disable(ctx); + skl_ipc_int_disable(ctx); + return ret; }
@@ -235,22 +256,6 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq, if (ret) return ret;
- skl->boot_complete = false; - init_waitqueue_head(&skl->boot_wait); - - ret = skl_dsp_boot(sst); - if (ret < 0) { - dev_err(skl->dev, "Boot dsp core failed ret: %d", ret); - goto free_ipc; - } - - ret = skl_cldma_prepare(sst); - if (ret < 0) { - dev_err(dev, "CL dma prepare failed : %d", ret); - goto free_ipc; - } - - ret = sst->fw_ops.load_fw(sst); if (ret < 0) { dev_err(dev, "Load base fw failed : %d", ret); @@ -262,7 +267,6 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
return 0;
-free_ipc: skl_ipc_free(&skl->ipc); return ret; }
The patch
ASoC: Intel: Skylake: Correct the runtime handler behaviour
has been applied to the asoc tree at
git://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.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 84c9e2836aa7c87b19a24de091c7e7cf16124645 Mon Sep 17 00:00:00 2001
From: Jeeja KP jeeja.kp@intel.com Date: Fri, 9 Oct 2015 09:01:50 +0100 Subject: [PATCH] ASoC: Intel: Skylake: Correct the runtime handler behaviour
On runtime pm resume, we need to download the firmware, also on suspend we need to ensure all the interrupts from controller and DSP are disabled.
Also since we download the firmware on resume, we don't need to do so on init, so remove that bit
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/common/sst-dsp-priv.h | 1 + sound/soc/intel/skylake/skl-sst-ipc.c | 12 ++++++++ sound/soc/intel/skylake/skl-sst-ipc.h | 1 + sound/soc/intel/skylake/skl-sst.c | 56 +++++++++++++++++++---------------- 4 files changed, 44 insertions(+), 26 deletions(-)
diff --git a/sound/soc/intel/common/sst-dsp-priv.h b/sound/soc/intel/common/sst-dsp-priv.h index cbd568e..2151652 100644 --- a/sound/soc/intel/common/sst-dsp-priv.h +++ b/sound/soc/intel/common/sst-dsp-priv.h @@ -314,6 +314,7 @@ struct sst_dsp { int sst_state; struct skl_cl_dev cl_dev; u32 intr_status; + const struct firmware *fw; };
/* Size optimised DRAM/IRAM memcpy */ diff --git a/sound/soc/intel/skylake/skl-sst-ipc.c b/sound/soc/intel/skylake/skl-sst-ipc.c index 937a0a3..3345ea0 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.c +++ b/sound/soc/intel/skylake/skl-sst-ipc.c @@ -464,6 +464,18 @@ void skl_ipc_op_int_enable(struct sst_dsp *ctx) SKL_ADSP_REG_HIPCCTL_BUSY, SKL_ADSP_REG_HIPCCTL_BUSY); }
+void skl_ipc_op_int_disable(struct sst_dsp *ctx) +{ + /* disable IPC DONE interrupt */ + sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_HIPCCTL, + SKL_ADSP_REG_HIPCCTL_DONE, 0); + + /* Disable IPC BUSY interrupt */ + sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_HIPCCTL, + SKL_ADSP_REG_HIPCCTL_BUSY, 0); + +} + bool skl_ipc_int_status(struct sst_dsp *ctx) { return sst_dsp_shim_read_unlocked(ctx, diff --git a/sound/soc/intel/skylake/skl-sst-ipc.h b/sound/soc/intel/skylake/skl-sst-ipc.h index 9f5f672..f1a154e 100644 --- a/sound/soc/intel/skylake/skl-sst-ipc.h +++ b/sound/soc/intel/skylake/skl-sst-ipc.h @@ -116,6 +116,7 @@ int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
void skl_ipc_int_enable(struct sst_dsp *dsp); void skl_ipc_op_int_enable(struct sst_dsp *ctx); +void skl_ipc_op_int_disable(struct sst_dsp *ctx); void skl_ipc_int_disable(struct sst_dsp *dsp);
bool skl_ipc_int_status(struct sst_dsp *dsp); diff --git a/sound/soc/intel/skylake/skl-sst.c b/sound/soc/intel/skylake/skl-sst.c index c18ea51..3b83dc9 100644 --- a/sound/soc/intel/skylake/skl-sst.c +++ b/sound/soc/intel/skylake/skl-sst.c @@ -70,15 +70,31 @@ static int skl_transfer_firmware(struct sst_dsp *ctx, static int skl_load_base_firmware(struct sst_dsp *ctx) { int ret = 0, i; - const struct firmware *fw = NULL; struct skl_sst *skl = ctx->thread_context; u32 reg;
- ret = request_firmware(&fw, "dsp_fw_release.bin", ctx->dev); + skl->boot_complete = false; + init_waitqueue_head(&skl->boot_wait); + + if (ctx->fw == NULL) { + ret = request_firmware(&ctx->fw, "dsp_fw_release.bin", ctx->dev); + if (ret < 0) { + dev_err(ctx->dev, "Request firmware failed %d\n", ret); + skl_dsp_disable_core(ctx); + return -EIO; + } + } + + ret = skl_dsp_boot(ctx); if (ret < 0) { - dev_err(ctx->dev, "Request firmware failed %d\n", ret); - skl_dsp_disable_core(ctx); - return -EIO; + dev_err(ctx->dev, "Boot dsp core failed ret: %d", ret); + goto skl_load_base_firmware_failed; + } + + ret = skl_cldma_prepare(ctx); + if (ret < 0) { + dev_err(ctx->dev, "CL dma prepare failed : %d", ret); + goto skl_load_base_firmware_failed; }
/* enable Interrupt */ @@ -102,7 +118,7 @@ static int skl_load_base_firmware(struct sst_dsp *ctx) goto skl_load_base_firmware_failed; }
- ret = skl_transfer_firmware(ctx, fw->data, fw->size); + ret = skl_transfer_firmware(ctx, ctx->fw->data, ctx->fw->size); if (ret < 0) { dev_err(ctx->dev, "Transfer firmware failed%d\n", ret); goto skl_load_base_firmware_failed; @@ -118,13 +134,12 @@ static int skl_load_base_firmware(struct sst_dsp *ctx) dev_dbg(ctx->dev, "Download firmware successful%d\n", ret); skl_dsp_set_state_locked(ctx, SKL_DSP_RUNNING); } - release_firmware(fw); - return 0;
skl_load_base_firmware_failed: skl_dsp_disable_core(ctx); - release_firmware(fw); + release_firmware(ctx->fw); + ctx->fw = NULL; return ret; }
@@ -172,6 +187,12 @@ static int skl_set_dsp_D3(struct sst_dsp *ctx) } skl_dsp_set_state_locked(ctx, SKL_DSP_RESET);
+ /* disable Interrupt */ + ctx->cl_dev.ops.cl_cleanup_controller(ctx); + skl_cldma_int_disable(ctx); + skl_ipc_op_int_disable(ctx); + skl_ipc_int_disable(ctx); + return ret; }
@@ -235,22 +256,6 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq, if (ret) return ret;
- skl->boot_complete = false; - init_waitqueue_head(&skl->boot_wait); - - ret = skl_dsp_boot(sst); - if (ret < 0) { - dev_err(skl->dev, "Boot dsp core failed ret: %d", ret); - goto free_ipc; - } - - ret = skl_cldma_prepare(sst); - if (ret < 0) { - dev_err(dev, "CL dma prepare failed : %d", ret); - goto free_ipc; - } - - ret = sst->fw_ops.load_fw(sst); if (ret < 0) { dev_err(dev, "Load base fw failed : %d", ret); @@ -262,7 +267,6 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
return 0;
-free_ipc: skl_ipc_free(&skl->ipc); return ret; }
From: Jeeja KP jeeja.kp@intel.com
This ensures that the link is not requesting any clock and the PLL can turn off. The link is powered when controller is brought out of reset.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index ca135b8ab5c0..5319529aedf7 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -173,6 +173,9 @@ static int skl_runtime_suspend(struct device *dev)
/* enable controller wake up event */ snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK); + + snd_hdac_ext_bus_link_power_down_all(ebus); + ret = skl_suspend_dsp(skl); if (ret < 0) return ret;
The patch
ASoC: Intel: Skylake: power down all link in suspend
has been applied to the asoc tree at
git://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.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 01bb84b5001e4a6221582b163b34e90b3095f451 Mon Sep 17 00:00:00 2001
From: Jeeja KP jeeja.kp@intel.com Date: Fri, 9 Oct 2015 09:01:51 +0100 Subject: [PATCH] ASoC: Intel: Skylake: power down all link in suspend
This ensures that the link is not requesting any clock and the PLL can turn off. The link is powered when controller is brought out of reset.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/skylake/skl.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index ca135b8..5319529 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -173,6 +173,9 @@ static int skl_runtime_suspend(struct device *dev)
/* enable controller wake up event */ snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK); + + snd_hdac_ext_bus_link_power_down_all(ebus); + ret = skl_suspend_dsp(skl); if (ret < 0) return ret;
participants (2)
-
Mark Brown -
Vinod Koul