From: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
To: Sebastian Hesselbarth
<sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>,
Gregory Clement
<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Gabriel Dobato <dobatog-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v3 1/4] i2c: mux-pinctrl: Rework to honor disabled child nodes
Date: Mon, 23 Mar 2015 19:32:11 +0100 [thread overview]
Message-ID: <20150323183211.GB1128@katana> (raw)
In-Reply-To: <550EBDBC.9000903-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> If modifying i2c-mux-pinctrl to respect the sub-bus status property is
> such a big issue, I'd rather leave the driver as is and expose all
> sub-busses to userspace.
Well, dunno what 'big issue' is in your book :) What definately needs to
be done is:
* handle "status" at mux-core level, not mux-driver
* that probably needs us to convert i2c_add_mux_adapter() to return
ERR_PTRs instead of NULL, so we can distinguish the "disabled" case
* that would mean to fix all existing users
That's all not groundbreaking stuff, but needs caution and thoroughness.
There might be some gory details left, though...
Regards,
Wolfram
next prev parent reply other threads:[~2015-03-23 18:32 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-17 18:52 [PATCH 0/8] Add proper support for Compulab CM-A510/SBC-A510 Sebastian Hesselbarth
2015-02-17 18:52 ` [PATCH 1/8] i2c: mux-pinctrl: Rework to honor disabled child nodes Sebastian Hesselbarth
[not found] ` <1424199129-22099-2-git-send-email-sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-17 20:46 ` Stephen Warren
[not found] ` <54E3A8A7.8080703-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2015-02-17 21:08 ` Sebastian Hesselbarth
2015-02-17 21:15 ` Stephen Warren
2015-02-17 21:19 ` Sebastian Hesselbarth
2015-02-26 21:46 ` Stephen Warren
2015-02-17 18:52 ` [PATCH 7/8] ARM: dts: dove: Add internal i2c multiplexer node Sebastian Hesselbarth
[not found] ` <1424199129-22099-8-git-send-email-sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-23 15:07 ` Gregory CLEMENT
[not found] ` <1424199129-22099-1-git-send-email-sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-26 17:55 ` [PATCH 0/8] Add proper support for Compulab CM-A510/SBC-A510 Gregory CLEMENT
2015-02-26 19:39 ` Sebastian Hesselbarth
2015-02-26 20:01 ` Stephen Warren
2015-02-26 20:35 ` Sebastian Hesselbarth
2015-02-27 12:24 ` [PATCH v2 0/4] " Sebastian Hesselbarth
[not found] ` <1425039885-5137-1-git-send-email-sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-27 12:24 ` [PATCH v2 1/4] i2c: mux-pinctrl: Rework to honor disabled child nodes Sebastian Hesselbarth
[not found] ` <1425039885-5137-2-git-send-email-sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-02 20:01 ` Stephen Warren
[not found] ` <54F4C185.9080808-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2015-03-04 9:10 ` Sebastian Hesselbarth
2015-03-09 12:21 ` [PATCH v3 " Sebastian Hesselbarth
[not found] ` <1425903665-19343-1-git-send-email-sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-10 16:28 ` Stephen Warren
[not found] ` <54FF1BAA.3060409-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2015-03-16 20:15 ` Sebastian Hesselbarth
2015-03-18 12:30 ` Wolfram Sang
2015-03-18 13:23 ` Sebastian Hesselbarth
2015-03-18 14:00 ` Wolfram Sang
2015-03-18 23:10 ` Sebastian Hesselbarth
[not found] ` <550A05E5.3050100-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-19 10:09 ` Wolfram Sang
2015-03-19 10:48 ` Wolfram Sang
2015-03-19 15:47 ` Stephen Warren
[not found] ` <550AEF9D.6090307-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2015-03-19 16:02 ` Wolfram Sang
2015-03-19 16:49 ` Stephen Warren
2015-03-19 20:52 ` Sebastian Hesselbarth
2015-03-20 10:19 ` Wolfram Sang
2015-03-21 21:00 ` Wolfram Sang
2015-03-22 13:03 ` Sebastian Hesselbarth
[not found] ` <550EBDBC.9000903-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-03-23 18:32 ` Wolfram Sang [this message]
2015-03-27 21:08 ` Sebastian Hesselbarth
[not found] ` <5515C6B6.7080903-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-04-03 18:17 ` Wolfram Sang
2015-02-27 12:24 ` [PATCH v2 3/4] ARM: dts: dove: Add internal i2c multiplexer node Sebastian Hesselbarth
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