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From: Chris Brandt <Chris.Brandt@renesas.com>
To: Mark Brown <broonie@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-renesas-soc@vger.kernel.org" 
	<linux-renesas-soc@vger.kernel.org>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
	Mason Yang <masonccyang@mxic.com.tw>
Subject: RE: [PATCH v2 0/6] spi: Add Renesas SPIBSC controller
Date: Thu, 12 Dec 2019 16:53:26 +0000	[thread overview]
Message-ID: <TY1PR01MB15627D5522BE325B7BE74E328A550@TY1PR01MB1562.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20191212152855.GD4310@sirena.org.uk>

On Thu, Dec 12, 2019 1, Mark Brown wrote:
> > Is that why this "RPC" patch series is taking so long?
> > It's a fairly simple piece of hardware.
> 
> The submitter appeared to be having difficulty with feedback from the
> reviewers with knowledge of the hardware, then it looks like the last
> version of the patch set didn't get any comments from any of those
> reviewers.

I went and looked at the driver and it was more complicated than what I 
did so I wasn't sure if there was some more advanced functionality or
something that was trying to be achieved.

I admit, V1 of this hardware (in the RZ/A1) was easier than V2 (RZ/A2 & R-Car),
so I had to re-write our BSP driver when it came time to support RZ/A2.
Basically, when they added HyperFlash support...it 'changed' how SPI
support was working. 

I agree with Sergei that it is always better to have a common driver for
common HW across different SoCs. However, it's not clear yet why there
needs to be increased complexity.

There were some good suggestions from the V2 series that I think complete
this driver. But I have not sent out a V3 until I can better understand
this 'competing' solution.

Chris

  reply	other threads:[~2019-12-12 16:53 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-06 13:41 [PATCH v2 0/6] spi: Add Renesas SPIBSC controller Chris Brandt
2019-12-06 13:41 ` [PATCH v2 1/6] spi: Add SPIBSC driver Chris Brandt
2019-12-12 19:36   ` Sergei Shtylyov
2019-12-12 20:19     ` Chris Brandt
2019-12-13 10:01       ` Geert Uytterhoeven
2019-12-13 14:45         ` Chris Brandt
2019-12-13 14:48           ` Geert Uytterhoeven
2019-12-13 19:37           ` Sergei Shtylyov
2019-12-13 18:36       ` Sergei Shtylyov
2019-12-13 19:40         ` Sergei Shtylyov
2019-12-13 20:43           ` Chris Brandt
2019-12-16 18:47             ` Sergei Shtylyov
2019-12-06 13:41 ` [PATCH v2 2/6] dt-bindings: spi: Document Renesas SPIBSC bindings Chris Brandt
2019-12-09 14:09   ` Geert Uytterhoeven
2019-12-09 15:45     ` Chris Brandt
2019-12-09 19:34       ` Geert Uytterhoeven
2019-12-10 20:07     ` Sergei Shtylyov
2019-12-10 20:17       ` Geert Uytterhoeven
2019-12-10 20:33         ` Chris Brandt
2019-12-10 20:23       ` Chris Brandt
2019-12-06 13:41 ` [PATCH v2 3/6] clk: renesas: r7s9210: Add SPIBSC clock Chris Brandt
2019-12-06 18:40   ` Sergei Shtylyov
2019-12-06 19:49     ` Chris Brandt
2019-12-20 14:38       ` Geert Uytterhoeven
2019-12-20 14:50         ` Chris Brandt
2019-12-06 13:42 ` [PATCH v2 4/6] ARM: dts: r7s72100: Add SPIBSC devices Chris Brandt
2019-12-06 13:42 ` [PATCH v2 5/6] ARM: dts: r7s9210: Add SPIBSC device Chris Brandt
2019-12-06 13:42 ` [PATCH v2 6/6] ARM: dts: gr-peach: Enable SPIBSC Chris Brandt
2019-12-07 20:28 ` [PATCH v2 0/6] spi: Add Renesas SPIBSC controller Sergei Shtylyov
2019-12-09 15:10   ` Chris Brandt
2019-12-11 19:09     ` Sergei Shtylyov
2019-12-12 14:29       ` Chris Brandt
2019-12-12 15:28         ` Mark Brown
2019-12-12 16:53           ` Chris Brandt [this message]
2019-12-12 17:13             ` Mark Brown
2019-12-12 17:25               ` Chris Brandt
2019-12-16 15:21                 ` Mark Brown
2019-12-16 20:31         ` Sergei Shtylyov
2019-12-16 22:21           ` Chris Brandt
2019-12-17 19:30             ` Sergei Shtylyov
2019-12-17 20:26               ` Geert Uytterhoeven
2019-12-19 16:57               ` Chris Brandt
2019-12-19 19:01                 ` Sergei Shtylyov
2019-12-19 21:04                   ` Chris Brandt
2019-12-20  1:45                   ` masonccyang
2019-12-20  7:55                     ` Geert Uytterhoeven
2019-12-24 16:58                     ` Sergei Shtylyov
2019-12-27  0:58                       ` Mark Brown
2019-12-17 19:44           ` Sergei Shtylyov
2019-12-18  8:09             ` Boris Brezillon
2019-12-19 16:32               ` Chris Brandt

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