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From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Jaroslav Kysela <perex@perex.cz>,
	ALSA Development Mailing List <alsa-devel@alsa-project.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>
Subject: Re: [PATCH 3/3] ASoC: rsnd: add null CLOCKIN support
Date: 27 May 2021 07:06:19 +0900	[thread overview]
Message-ID: <87o8cxm9pg.wl-kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <CAMuHMdVhnKeztftOJEZhSg8bXArzUDXAmHSMPVfbMamV3ihw+g@mail.gmail.com>


Hi Geert

> Oh right, I missed the static clk_hw pointer.
> What if you unload the snd-soc-rcar.ko module?

Hmm.. indeed.
It needs something..
Thank you for poining it.

>     #define for_each_rsnd_clk(pos, adg, i)          \
>             for (i = 0; (pos) = adg->clk[i], i < CLKMAX; i++)            \
>                     if (pos) {                      \
>                             continue;               \
>                     } else

Wow!! I didn't know this technique.
Indeed it can use NULL pointer.

But, I want to avoid "if (pos) else" code as much as possible,
and keep simple code.
It can handle all clk case without thinking it if it has null_clk.

Why you don't want null_clk ??

Thank you for your help !!

Best regards
---
Kuninori Morimoto

WARNING: multiple messages have this Message-ID (diff)
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	ALSA Development Mailing List <alsa-devel@alsa-project.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Rob Herring <robh+dt@kernel.org>, Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH 3/3] ASoC: rsnd: add null CLOCKIN support
Date: 27 May 2021 07:06:19 +0900	[thread overview]
Message-ID: <87o8cxm9pg.wl-kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <CAMuHMdVhnKeztftOJEZhSg8bXArzUDXAmHSMPVfbMamV3ihw+g@mail.gmail.com>


Hi Geert

> Oh right, I missed the static clk_hw pointer.
> What if you unload the snd-soc-rcar.ko module?

Hmm.. indeed.
It needs something..
Thank you for poining it.

>     #define for_each_rsnd_clk(pos, adg, i)          \
>             for (i = 0; (pos) = adg->clk[i], i < CLKMAX; i++)            \
>                     if (pos) {                      \
>                             continue;               \
>                     } else

Wow!! I didn't know this technique.
Indeed it can use NULL pointer.

But, I want to avoid "if (pos) else" code as much as possible,
and keep simple code.
It can handle all clk case without thinking it if it has null_clk.

Why you don't want null_clk ??

Thank you for your help !!

Best regards
---
Kuninori Morimoto

  reply	other threads:[~2021-05-26 22:06 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-24  6:11 [PATCH 0/3] ASoC: rsnd: add D3 support Kuninori Morimoto
2021-05-24  6:11 ` Kuninori Morimoto
2021-05-24  6:12 ` [PATCH 1/3] ASoC: dt-bindings: renesas: rsnd: tidyup properties Kuninori Morimoto
2021-05-24  6:12   ` Kuninori Morimoto
2021-05-24  6:12 ` [PATCH 2/3] ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() Kuninori Morimoto
2021-05-24  6:12   ` Kuninori Morimoto
2021-05-24  6:12 ` [PATCH 3/3] ASoC: rsnd: add null CLOCKIN support Kuninori Morimoto
2021-05-24  6:12   ` Kuninori Morimoto
2021-05-25 10:31   ` Geert Uytterhoeven
2021-05-25 10:31     ` Geert Uytterhoeven
2021-05-25 22:48     ` Kuninori Morimoto
2021-05-25 22:48       ` Kuninori Morimoto
2021-05-26  6:58       ` Geert Uytterhoeven
2021-05-26  6:58         ` Geert Uytterhoeven
2021-05-26 22:06         ` Kuninori Morimoto [this message]
2021-05-26 22:06           ` Kuninori Morimoto
2021-05-27  7:30           ` Geert Uytterhoeven
2021-05-27  7:30             ` Geert Uytterhoeven
2021-05-27  9:48             ` Mark Brown
2021-05-27  9:48               ` Mark Brown
2021-05-24 11:59 ` [PATCH 0/3] ASoC: rsnd: add D3 support Mark Brown
2021-05-24 11:59   ` Mark Brown

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