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From: Mark Brown <broonie@kernel.org>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Fruehberger Peter <Peter.Fruehberger@de.bosch.com>,
	kernel@collabora.com, Daniel Vetter <daniel@ffwll.ch>,
	Adrian Ratiu <adrian.ratiu@collabora.com>,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	kuhanh.murugasen.krishnan@intel.com,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Ezequiel Garcia <ezequiel@collabora.com>,
	linux-media@vger.kernel.org
Subject: Re: [PATCH 00/18] Add Hantro regmap and VC8000 h264 decode support
Date: Thu, 29 Oct 2020 14:48:15 +0000
Message-ID: <20201029144815.GA5042@sirena.org.uk> (raw)
In-Reply-To: <0dd9fb9d-3f33-b9b0-a7a8-6d3111e92d64@arm.com>

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On Thu, Oct 29, 2020 at 02:15:10PM +0000, Robin Murphy wrote:

> Or maybe the regmap API itself deserves extending with a "deferred"
> operating mode where updates to the cached state can be separated from
> committing that state to the underlying hardware.

> ...which, after a brief code search out of curiosity, apparently already
> exists in the form of regcache_cache_only()/regcache_sync(), so there's
> probably no need to reinvent it :)

Yes, exactly.  One of the big use cases for regmap on MMIO devices is
being able to access the register map without the hardware being there,
this would be another application of the cache stuff.

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Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 20:59 Adrian Ratiu
2020-10-12 20:59 ` [PATCH 01/18] media: hantro: document all int reg bits up to vc8000 Adrian Ratiu
2020-10-12 20:59 ` [PATCH 02/18] media: hantro: make consistent use of decimal register notation Adrian Ratiu
2020-10-12 20:59 ` [PATCH 03/18] media: hantro: make G1_REG_SOFT_RESET Rockchip specific Adrian Ratiu
2020-10-12 20:59 ` [PATCH 04/18] media: hantro: add reset controller support Adrian Ratiu
2020-10-13  8:11   ` Philipp Zabel
2020-10-12 20:59 ` [PATCH 05/18] media: hantro: prepare clocks before variant inits are run Adrian Ratiu
2020-10-12 20:59 ` [PATCH 06/18] media: hantro: imx8mq: simplify ctrlblk reset logic Adrian Ratiu
2020-10-12 20:59 ` [PATCH 07/18] regmap: mmio: add config option to allow relaxed MMIO accesses Adrian Ratiu
2020-10-13 10:26   ` Mark Brown
2020-10-14 11:51     ` Adrian Ratiu
2020-10-14 12:12       ` Mark Brown
2020-10-14 13:00         ` Adrian Ratiu
2020-10-12 20:59 ` [PATCH 08/18] media: hantro: add initial MMIO regmap infrastructure Adrian Ratiu
2020-10-12 20:59 ` [PATCH 09/18] media: hantro: default regmap to relaxed MMIO Adrian Ratiu
2020-10-12 20:59 ` [PATCH 10/18] media: hantro: convert G1 h264 decoder to regmap fields Adrian Ratiu
2020-10-12 20:59 ` [PATCH 11/18] media: hantro: convert G1 postproc to regmap Adrian Ratiu
2020-10-12 20:59 ` [PATCH 12/18] media: hantro: add VC8000D h264 decoding Adrian Ratiu
2020-10-12 20:59 ` [PATCH 13/18] media: hantro: add VC8000D postproc support Adrian Ratiu
2020-10-12 20:59 ` [PATCH 14/18] media: hantro: make PP enablement logic a bit smarter Adrian Ratiu
2020-10-12 20:59 ` [PATCH 15/18] media: hantro: add user-selectable, platform-selectable H264 High10 Adrian Ratiu
2020-10-12 20:59 ` [PATCH 16/18] media: hantro: rename h264_dec as it's not G1 specific anymore Adrian Ratiu
2020-10-12 20:59 ` [PATCH 17/18] media: hantro: add dump registers debug option before decode start Adrian Ratiu
2020-10-12 20:59 ` [PATCH 18/18] media: hantro: document encoder reg fields Adrian Ratiu
2020-10-12 23:39 ` [PATCH 00/18] Add Hantro regmap and VC8000 h264 decode support Jonas Karlman
2020-10-13  6:48   ` Adrian Ratiu
2020-10-29 12:38   ` Ezequiel Garcia
2020-10-29 16:21     ` Jonas Karlman
2020-11-03 15:27       ` Ezequiel Garcia
2020-10-29 13:07 ` Ezequiel Garcia
2020-10-29 14:15   ` Robin Murphy
2020-10-29 14:48     ` Mark Brown [this message]
2020-10-29 16:27     ` Ezequiel Garcia
2020-10-29 17:59       ` Mark Brown

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