* [PATCH v2] ASoC: qcom: lpass-platform: Reset irq clear reg post handling interrupts
@ 2021-09-08 14:25 Srinivasa Rao Mandadapu
2021-09-08 16:07 ` Srinivas Kandagatla
0 siblings, 1 reply; 2+ messages in thread
From: Srinivasa Rao Mandadapu @ 2021-09-08 14:25 UTC (permalink / raw)
To: agross, bjorn.andersson, lgirdwood, broonie, robh+dt, plai,
bgoswami, perex, tiwai, srinivas.kandagatla, rohitkr,
linux-arm-msm, alsa-devel, devicetree, linux-kernel, swboyd,
judyhsiao
Cc: Srinivasa Rao Mandadapu
Update interrupt clear register with reset value after addressing
all interrupts. This is to fix playback or capture hanging issue in
simultaneous playback and capture usecase.
Fixes: 4f629e4b8705f ("ASoC: qcom: Add ability to handle interrupts per dma channel")
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
---
Changes since v1:
-- Update comments Header information with fixes tag
sound/soc/qcom/lpass-platform.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index f9df76d37858..1a0a4b0b1a03 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -749,6 +749,12 @@ static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data)
}
}
+ rv = regmap_write(drvdata->lpaif_map, LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST), 0x0);
+ if (rv) {
+ pr_err("error writing to irqstat reg: %d\n", rv);
+ return IRQ_NONE;
+ }
+
return IRQ_HANDLED;
}
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] ASoC: qcom: lpass-platform: Reset irq clear reg post handling interrupts
2021-09-08 14:25 [PATCH v2] ASoC: qcom: lpass-platform: Reset irq clear reg post handling interrupts Srinivasa Rao Mandadapu
@ 2021-09-08 16:07 ` Srinivas Kandagatla
0 siblings, 0 replies; 2+ messages in thread
From: Srinivas Kandagatla @ 2021-09-08 16:07 UTC (permalink / raw)
To: Srinivasa Rao Mandadapu, agross, bjorn.andersson, lgirdwood,
broonie, robh+dt, plai, bgoswami, perex, tiwai, rohitkr,
linux-arm-msm, alsa-devel, devicetree, linux-kernel, swboyd,
judyhsiao
On 08/09/2021 15:25, Srinivasa Rao Mandadapu wrote:
> Update interrupt clear register with reset value after addressing
> all interrupts. This is to fix playback or capture hanging issue in
> simultaneous playback and capture usecase.
Could explain bit more about the issue.
Specifically which interrupt and which ports is this issue seen.
>
> Fixes: 4f629e4b8705f ("ASoC: qcom: Add ability to handle interrupts per dma channel")
>
> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
> ---
> Changes since v1:
> -- Update comments Header information with fixes tag
>
> sound/soc/qcom/lpass-platform.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
> index f9df76d37858..1a0a4b0b1a03 100644
> --- a/sound/soc/qcom/lpass-platform.c
> +++ b/sound/soc/qcom/lpass-platform.c
> @@ -749,6 +749,12 @@ static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data)
> }
> }
>
> + rv = regmap_write(drvdata->lpaif_map, LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST), 0x0);
Writing 1 to a bit of this register will clear the corresponding latched
interrupt. So I don't really understand how writing 0 is really helping
here?
Do you have this patch in your tree?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/sound/soc/qcom/lpass-cpu.c?h=v5.14&id=6a7f5bd6185e1c86256d5e52c3bb7a4d390d6e19
--srini
> + if (rv) {
> + pr_err("error writing to irqstat reg: %d\n", rv);
> + return IRQ_NONE;
> + }
> +
> return IRQ_HANDLED;
> }
>
>
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2021-09-08 16:07 ` Srinivas Kandagatla
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