* [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init
@ 2020-08-07 9:14 Shengjiu Wang
2020-08-10 8:00 ` Nicolin Chen
2020-08-10 23:11 ` Nicolin Chen
0 siblings, 2 replies; 4+ messages in thread
From: Shengjiu Wang @ 2020-08-07 9:14 UTC (permalink / raw)
To: timur, nicoleotsuka, Xiubo.Lee, festevam, lgirdwood, broonie,
perex, tiwai, alsa-devel, linuxppc-dev, linux-kernel
Regmap initialization may return -EPROBE_DEFER for clock
may not be ready, so check -EPROBE_DEFER error type before
start another Regmap initialization.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
sound/soc/fsl/fsl_sai.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index a22562f2df47..eb933fe9b6d1 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -927,7 +927,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
"bus", base, &fsl_sai_regmap_config);
/* Compatible with old DTB cases */
- if (IS_ERR(sai->regmap))
+ if (IS_ERR(sai->regmap) && PTR_ERR(sai->regmap) != -EPROBE_DEFER)
sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
"sai", base, &fsl_sai_regmap_config);
if (IS_ERR(sai->regmap)) {
--
2.27.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init
2020-08-07 9:14 [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init Shengjiu Wang
@ 2020-08-10 8:00 ` Nicolin Chen
2020-08-10 8:53 ` Shengjiu Wang
2020-08-10 23:11 ` Nicolin Chen
1 sibling, 1 reply; 4+ messages in thread
From: Nicolin Chen @ 2020-08-10 8:00 UTC (permalink / raw)
To: Shengjiu Wang
Cc: timur, Xiubo.Lee, festevam, lgirdwood, broonie, perex, tiwai,
alsa-devel, linuxppc-dev, linux-kernel
On Fri, Aug 07, 2020 at 05:14:42PM +0800, Shengjiu Wang wrote:
> Regmap initialization may return -EPROBE_DEFER for clock
> may not be ready, so check -EPROBE_DEFER error type before
> start another Regmap initialization.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> ---
> sound/soc/fsl/fsl_sai.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
> index a22562f2df47..eb933fe9b6d1 100644
> --- a/sound/soc/fsl/fsl_sai.c
> +++ b/sound/soc/fsl/fsl_sai.c
> @@ -927,7 +927,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
> "bus", base, &fsl_sai_regmap_config);
>
> /* Compatible with old DTB cases */
> - if (IS_ERR(sai->regmap))
> + if (IS_ERR(sai->regmap) && PTR_ERR(sai->regmap) != -EPROBE_DEFER)
> sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
> "sai", base, &fsl_sai_regmap_config);
> if (IS_ERR(sai->regmap)) {
In that case, might need a !EPROBE_DEFER check for this
fallback devm_regmap_init_mmio_clk at "sai" clock too?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init
2020-08-10 8:00 ` Nicolin Chen
@ 2020-08-10 8:53 ` Shengjiu Wang
0 siblings, 0 replies; 4+ messages in thread
From: Shengjiu Wang @ 2020-08-10 8:53 UTC (permalink / raw)
To: Nicolin Chen
Cc: Shengjiu Wang, Linux-ALSA, Timur Tabi, Xiubo Li, linuxppc-dev,
Takashi Iwai, Liam Girdwood, Mark Brown, Fabio Estevam,
linux-kernel
On Mon, Aug 10, 2020 at 4:02 PM Nicolin Chen <nicoleotsuka@gmail.com> wrote:
>
> On Fri, Aug 07, 2020 at 05:14:42PM +0800, Shengjiu Wang wrote:
> > Regmap initialization may return -EPROBE_DEFER for clock
> > may not be ready, so check -EPROBE_DEFER error type before
> > start another Regmap initialization.
> >
> > Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> > ---
> > sound/soc/fsl/fsl_sai.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
> > index a22562f2df47..eb933fe9b6d1 100644
> > --- a/sound/soc/fsl/fsl_sai.c
> > +++ b/sound/soc/fsl/fsl_sai.c
> > @@ -927,7 +927,7 @@ static int fsl_sai_probe(struct platform_device *pdev)
> > "bus", base, &fsl_sai_regmap_config);
> >
> > /* Compatible with old DTB cases */
> > - if (IS_ERR(sai->regmap))
> > + if (IS_ERR(sai->regmap) && PTR_ERR(sai->regmap) != -EPROBE_DEFER)
> > sai->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
> > "sai", base, &fsl_sai_regmap_config);
> > if (IS_ERR(sai->regmap)) {
>
> In that case, might need a !EPROBE_DEFER check for this
> fallback devm_regmap_init_mmio_clk at "sai" clock too?
No, I think it is ok for this fallback to return directly with
EPROBE_DEFER.
best regards
wang shengjiu
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init
2020-08-07 9:14 [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init Shengjiu Wang
2020-08-10 8:00 ` Nicolin Chen
@ 2020-08-10 23:11 ` Nicolin Chen
1 sibling, 0 replies; 4+ messages in thread
From: Nicolin Chen @ 2020-08-10 23:11 UTC (permalink / raw)
To: Shengjiu Wang
Cc: timur, Xiubo.Lee, festevam, lgirdwood, broonie, perex, tiwai,
alsa-devel, linuxppc-dev, linux-kernel
On Fri, Aug 07, 2020 at 05:14:42PM +0800, Shengjiu Wang wrote:
> Regmap initialization may return -EPROBE_DEFER for clock
> may not be ready, so check -EPROBE_DEFER error type before
> start another Regmap initialization.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-08-07 9:14 [PATCH] ASoC: fsl_sai: Add -EPROBE_DEFER check for regmap init Shengjiu Wang
2020-08-10 8:00 ` Nicolin Chen
2020-08-10 8:53 ` Shengjiu Wang
2020-08-10 23:11 ` Nicolin Chen
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