From: Wolfram Sang <wsa@kernel.org>
To: Rob Herring <robh@kernel.org>
Cc: "Tomi Valkeinen" <tomi.valkeinen@ideasonboard.com>,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Luca Ceresoli" <luca.ceresoli@bootlin.com>,
"Andy Shevchenko" <andriy.shevchenko@intel.com>,
"Matti Vaittinen" <Matti.Vaittinen@fi.rohmeurope.com>,
"Laurent Pinchart" <laurent.pinchart+renesas@ideasonboard.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Peter Rosin" <peda@axentia.se>,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
"Sakari Ailus" <sakari.ailus@linux.intel.com>,
"Michael Tretter" <m.tretter@pengutronix.de>,
"Hans Verkuil" <hverkuil@xs4all.nl>,
"Mike Pagano" <mpagano@gentoo.org>,
"Krzysztof Hałasa" <khalasa@piap.pl>,
"Marek Vasut" <marex@denx.de>,
"Satish Nagireddy" <satish.nagireddy@getcruise.com>,
"Luca Ceresoli" <luca@lucaceresoli.net>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>
Subject: Re: [PATCH v11 1/7] i2c: add I2C Address Translator (ATR) support
Date: Tue, 25 Apr 2023 21:24:11 +0200 [thread overview]
Message-ID: <ZEgo2+0cA+tD2k7u@sai> (raw)
In-Reply-To: <20230425171347.GB1957523-robh@kernel.org>
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> We do support some flags in the upper 16-bits of I2C addresses. Any of
> those possibly needed here?
I2C_OWN_SLAVE_ADDRESS definately not. ATR is only for addresses on the
remote bus while our own address is on the local bus.
I2C_TEN_BIT_ADDRESS, only in theory. I have never seen a 10-bit address
in the wild, so extremely unlikely that ATR hardware does support it.
But then again, there is a slight chance that we add more flags in the
future which might be relevant for ATR? So, u32 is probably a good
thing to use nonetheless.
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next prev parent reply other threads:[~2023-04-25 19:24 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-21 10:18 [PATCH v11 0/7] i2c-atr and FPDLink Tomi Valkeinen
2023-04-21 10:18 ` [PATCH v11 1/7] i2c: add I2C Address Translator (ATR) support Tomi Valkeinen
2023-04-24 10:31 ` Wolfram Sang
2023-04-24 10:51 ` Tomi Valkeinen
2023-04-24 11:01 ` Tomi Valkeinen
2023-04-24 11:32 ` Wolfram Sang
2023-04-24 11:39 ` Tomi Valkeinen
2023-04-24 11:43 ` Wolfram Sang
2023-04-25 17:13 ` Rob Herring
2023-04-25 19:24 ` Wolfram Sang [this message]
2023-04-21 10:18 ` [PATCH v11 2/7] dt-bindings: media: add TI DS90UB913 FPD-Link III Serializer Tomi Valkeinen
2023-04-21 10:18 ` [PATCH v11 3/7] dt-bindings: media: add TI DS90UB953 " Tomi Valkeinen
2023-04-21 10:18 ` [PATCH v11 4/7] dt-bindings: media: add TI DS90UB960 FPD-Link III Deserializer Tomi Valkeinen
2023-04-25 17:11 ` Rob Herring
2023-04-21 10:18 ` [PATCH v11 5/7] media: i2c: add DS90UB960 driver Tomi Valkeinen
2023-04-21 10:18 ` [PATCH v11 6/7] media: i2c: add DS90UB913 driver Tomi Valkeinen
2023-04-21 10:18 ` [PATCH v11 7/7] media: i2c: add DS90UB953 driver Tomi Valkeinen
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