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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>,
	Jens Axboe <axboe@kernel.dk>, Rob Herring <robh+dt@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
	"David S. Miller" <davem@davemloft.net>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-ide@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
	linux-mmc@vger.kernel.org, netdev@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org,
	linux-watchdog@vger.kernel.org,
	Prabhakar <prabhakar.csengg@gmail.com>
Subject: Re: [PATCH 03/17] ARM: dts: r8a7742: Add I2C and IIC support
Date: Fri, 15 May 2020 19:10:31 +0200
Message-ID: <20200515171031.GB19423@ninjato> (raw)
In-Reply-To: <1589555337-5498-4-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com>


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On Fri, May 15, 2020 at 04:08:43PM +0100, Lad Prabhakar wrote:
> Add the I2C[0-3] and IIC[0-3] devices nodes to the R8A7742 device tree.
> 
> Automatic transmission for PMIC control is not available on IIC3 hence
> compatible string "renesas,rcar-gen2-iic" and "renesas,rmobile-iic" is
> not added to iic3 node.

Makes sense.

However, both versions (with and without automatic transmission) are
described with the same "renesas,iic-r8a7742" compatible. Is it possible
to detect the reduced variant at runtime somehow?

My concern is that the peculiarity of this SoC might be forgotten if we
describe it like this and ever add "automatic transmissions" somewhen.


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  reply index

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 15:08 [PATCH 00/17] RZ/G1H describe I2C, IIC, MMC0, SATA, AVB, RWDT and APMU nodes Lad Prabhakar
2020-05-15 15:08 ` [PATCH 01/17] dt-bindings: i2c: renesas,i2c: Document r8a7742 support Lad Prabhakar
2020-05-15 17:12   ` Wolfram Sang
2020-05-18  9:56   ` Geert Uytterhoeven
2020-05-28 20:03   ` Rob Herring
2020-05-15 15:08 ` [PATCH 02/17] dt-bindings: i2c: renesas,iic: " Lad Prabhakar
2020-05-15 17:14   ` Wolfram Sang
2020-05-18  9:59   ` Geert Uytterhoeven
2020-05-28 20:03   ` Rob Herring
2020-05-15 15:08 ` [PATCH 03/17] ARM: dts: r8a7742: Add I2C and IIC support Lad Prabhakar
2020-05-15 17:10   ` Wolfram Sang [this message]
2020-05-18  8:58     ` Lad, Prabhakar
2020-05-18  9:26       ` Wolfram Sang
2020-05-18  9:43         ` Lad, Prabhakar
2020-05-18  9:53           ` Wolfram Sang
2020-05-18 10:10         ` Geert Uytterhoeven
2020-05-22 19:14           ` Lad, Prabhakar
2020-05-22 20:17             ` Wolfram Sang
2020-05-25  8:23               ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 04/17] dt-bindings: mmc: renesas,sdhi: Document r8a7742 support Lad Prabhakar
2020-05-15 17:17   ` Wolfram Sang
2020-05-18 11:10   ` Geert Uytterhoeven
2020-05-19 15:29   ` Ulf Hansson
2020-05-15 15:08 ` [PATCH 05/17] mmc: renesas_sdhi_sys_dmac: Add support for r8a7742 SoC Lad Prabhakar
2020-05-15 17:17   ` Wolfram Sang
2020-05-18 11:24     ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 06/17] ARM: dts: r8a7742: Add SDHI nodes Lad Prabhakar
2020-05-17 20:53   ` Wolfram Sang
2020-05-18 11:51   ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 07/17] ARM: dts: r8a7742: Add MMC0 node Lad Prabhakar
2020-05-17 20:54   ` Wolfram Sang
2020-05-18 11:52   ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 08/17] dt-bindings: ata: renesas,rcar-sata: Add r8a7742 support Lad Prabhakar
2020-05-17 20:55   ` Wolfram Sang
2020-05-18 11:13   ` Geert Uytterhoeven
2020-05-28 20:04   ` Rob Herring
2020-05-15 15:08 ` [PATCH 09/17] ARM: dts: r8a7742: Add sata nodes Lad Prabhakar
2020-05-17 20:57   ` Wolfram Sang
2020-05-18 11:52   ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 10/17] dt-bindings: net: renesas,ravb: Add support for r8a7742 SoC Lad Prabhakar
2020-05-17 20:58   ` Wolfram Sang
2020-05-18 11:14   ` Geert Uytterhoeven
2020-05-28 20:04   ` Rob Herring
2020-05-15 15:08 ` [PATCH 11/17] dt-bindings: net: renesas,ether: Document R8A7742 SoC Lad Prabhakar
2020-05-17 20:59   ` Wolfram Sang
2020-05-18 11:15   ` Geert Uytterhoeven
2020-05-28 20:04   ` Rob Herring
2020-05-15 15:08 ` [PATCH 12/17] ARM: dts: r8a7742: Add Ethernet AVB support Lad Prabhakar
2020-05-17 21:00   ` Wolfram Sang
2020-05-18 11:53   ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 13/17] ARM: dts: r8a7742: Add Ether support Lad Prabhakar
2020-05-17 21:01   ` Wolfram Sang
2020-05-18 11:53   ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 14/17] dt-bindings: power: renesas,apmu: Document r8a7742 support Lad Prabhakar
2020-05-17 21:01   ` Wolfram Sang
2020-05-18 11:16   ` Geert Uytterhoeven
2020-05-28 20:05   ` Rob Herring
2020-05-15 15:08 ` [PATCH 15/17] ARM: dts: r8a7742: Add APMU nodes Lad Prabhakar
2020-05-17 21:03   ` Wolfram Sang
2020-05-18 11:41   ` Geert Uytterhoeven
2020-05-15 15:08 ` [PATCH 16/17] dt-bindings: watchdog: renesas,wdt: Document r8a7742 support Lad Prabhakar
2020-05-17 21:03   ` Wolfram Sang
2020-05-18 11:17   ` Geert Uytterhoeven
2020-05-22 14:47   ` Guenter Roeck
2020-05-27  1:31   ` Rob Herring
2020-05-27 11:22     ` Lad, Prabhakar
2020-05-27 14:38       ` Rob Herring
2020-05-27 16:33         ` Prabhakar Mahadev Lad
2020-05-15 15:08 ` [PATCH 17/17] ARM: dts: r8a7742: Add RWDT node Lad Prabhakar
2020-05-17 21:08   ` Wolfram Sang
2020-05-18  9:16     ` Lad, Prabhakar
2020-05-18  9:28       ` Wolfram Sang
2020-05-18 11:47   ` Geert Uytterhoeven
2020-05-18 12:27     ` Lad, Prabhakar
2020-05-18 13:17       ` Sergei Shtylyov
2020-05-18 13:23         ` Lad, Prabhakar
2020-05-18 15:45           ` Geert Uytterhoeven

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