From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Andrey Smirnov <andrew.smirnov@gmail.com>,
<dri-devel@lists.freedesktop.org>
Cc: Archit Taneja <architt@codeaurora.org>,
Andrzej Hajda <a.hajda@samsung.com>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Andrey Gusakov <andrey.gusakov@cogentembedded.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Chris Healy <cphealy@gmail.com>,
Lucas Stach <l.stach@pengutronix.de>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 05/15] drm/bridge: tc358767: Drop custom tc_write()/tc_read() accessors
Date: Fri, 22 Mar 2019 12:29:02 +0200 [thread overview]
Message-ID: <19eddb76-38f7-e7cb-9a9f-5b435e67c63e@ti.com> (raw)
In-Reply-To: <20190322032901.12045-6-andrew.smirnov@gmail.com>
On 22/03/2019 05:28, Andrey Smirnov wrote:
> A very unfortunate aspect of tc_write()/tc_read() macro helpers is
> that they capture quite a bit of context around them and thus require
> the caller to have magic variables 'ret' and 'tc' as well as label
> 'err'. That makes a number of code paths rather counterintuitive and
> somewhat clunky, for example tc_stream_clock_calc() ends up being like
> this:
>
> int ret;
>
> tc_write(DP0_VIDMNGEN1, 32768);
>
> return 0;
> err:
> return ret;
>
> which is rather surprising when you read the code for the first
> time. Since those helpers arguably aren't really saving that much code
> and there's no way of fixing them without making them too verbose to
> be worth it change the driver code to not use them at all.
I fully agree with this patch and thought about the same thing during my
work.
However, the timing of this patch is not too good, as this one will
totally conflict with any other patch for tc358767, and my series is
still evolving.
We need to figure out how to combine this series and mine, but I think
either this patch should be dropped for now, and reapplied after the
other patches have stabilized, or I think preferably, this one could be
rebased on top of 5.1-rc1, and used as a base for all other tc358767 work.
Tomi
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
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next prev parent reply other threads:[~2019-03-22 10:29 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 3:28 [PATCH v2 00/15] tc358767 driver improvements Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 01/15] drm/bridge: tc358767: Simplify tc_poll_timeout() Andrey Smirnov
2019-03-22 10:12 ` Tomi Valkeinen
2019-03-22 3:28 ` [PATCH v2 02/15] drm/bridge: tc358767: Simplify polling in tc_main_link_setup() Andrey Smirnov
2019-03-22 10:13 ` Tomi Valkeinen
2019-03-22 3:28 ` [PATCH v2 03/15] drm/bridge: tc358767: Simplify polling in tc_link_training() Andrey Smirnov
2019-03-22 10:14 ` Tomi Valkeinen
2019-03-22 3:28 ` [PATCH v2 04/15] drm/bridge: tc358767: Simplify tc_set_video_mode() Andrey Smirnov
2019-03-22 10:19 ` Tomi Valkeinen
2019-03-22 17:24 ` Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 05/15] drm/bridge: tc358767: Drop custom tc_write()/tc_read() accessors Andrey Smirnov
2019-03-22 10:29 ` Tomi Valkeinen [this message]
2019-03-22 17:45 ` Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 07/15] drm/bridge: tc358767: Simplify AUX data write Andrey Smirnov
2019-03-22 10:51 ` Tomi Valkeinen
2019-03-22 17:25 ` Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 08/15] drm/bridge: tc358767: Increase AUX transfer length limit Andrey Smirnov
2019-03-22 13:14 ` Tomi Valkeinen
2019-03-22 19:01 ` Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 09/15] drm/bridge: tc358767: Use reported AUX transfer size Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 10/15] drm/bridge: tc358767: Add support for address-only I2C transfers Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 11/15] drm/bridge: tc358767: Introduce tc_set_syspllparam() Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 12/15] drm/bridge: tc358767: Introduce tc_pllupdate_pllen() Andrey Smirnov
2019-03-22 3:28 ` [PATCH v2 13/15] drm/bridge: tc358767: Simplify tc_aux_wait_busy() Andrey Smirnov
2019-03-22 3:29 ` [PATCH v2 14/15] drm/bridge: tc358767: Drop unnecessary 8 byte buffer Andrey Smirnov
2019-03-22 3:29 ` [PATCH v2 15/15] drm/bridge: tc358767: Replace magic number in tc_main_link_enable() Andrey Smirnov
2019-03-22 8:05 ` [PATCH v2 00/15] tc358767 driver improvements Tomi Valkeinen
2019-03-22 19:25 ` Andrey Smirnov
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