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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-renesas-soc@vger.kernel.org,
	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Subject: Re: [PATCH 05/11] media: renesas: fdp1: remove R-Car H3 ES1.* handling
Date: Mon, 24 Apr 2023 21:17:30 +0200	[thread overview]
Message-ID: <ZEbVyhjKs15Rj+5h@sai> (raw)
In-Reply-To: <CAMuHMdVQiMbupkCYhZ86WHND25E==iA1DyVwGf2rg32zJLcV2g@mail.gmail.com>

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Hi Geert,

thanks for reporting!

> > -#define FD1_IP_H3_ES1                  0x02010101

...

> Apparently 0x02010101 is also used on (at least) R-Car M2-W ES1.0,
> causing the following annoying (but further harmless?) messages
> during boot:
> 
>     rcar_fdp1 fe940000.fdp1: FDP1 Unidentifiable (0x02010101)
>     rcar_fdp1 fe944000.fdp1: FDP1 Unidentifiable (0x02010101)

Hmm, that means before my removal patch, Gen2 has been incorrectly
defined as H3 ES1?

> Note that the R-Car Gen2 documentation states the register's contents
> are all zeroes.  But that value would trigger the error message, too.

Bad, but well...

> Sorry for not noticing before. Apparently I never booted a kernel
> with this patch on koelsch...

We could re-add this version and just let it print "FDP1 Initial
Version" or something? I could test this on my Lager board.

All the best,

   Wolfram


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  reply	other threads:[~2023-04-24 19:17 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-07 16:30 [PATCH 00/11] tree-wide: remove support for Renesas R-Car H3 ES1 Wolfram Sang
2023-03-07 16:30 ` [PATCH 01/11] iommu/ipmmu-vmsa: remove R-Car H3 ES1.* handling Wolfram Sang
2023-03-22 13:28   ` Joerg Roedel
2023-03-07 16:30 ` [PATCH 02/11] drm: rcar-du: remove R-Car H3 ES1.* workarounds Wolfram Sang
2023-03-08 10:11   ` Kieran Bingham
2023-03-07 16:30 ` [PATCH 03/11] media: rcar-vin: remove R-Car H3 ES1.* handling Wolfram Sang
2023-03-07 16:30 ` [PATCH 04/11] media: rcar-vin: csi2: " Wolfram Sang
2023-03-07 16:30 ` [PATCH 05/11] media: renesas: fdp1: " Wolfram Sang
2023-03-08  0:36   ` Kieran Bingham
2023-04-24 17:37   ` Geert Uytterhoeven
2023-04-24 19:17     ` Wolfram Sang [this message]
2023-04-24 19:37       ` Geert Uytterhoeven
2023-04-24 23:52         ` Laurent Pinchart
2023-03-07 16:30 ` [PATCH 06/11] thermal/drivers/rcar_gen3_thermal: " Wolfram Sang
2023-03-08 18:04   ` Daniel Lezcano
2023-03-07 16:30 ` [PATCH 07/11] ravb: " Wolfram Sang
2023-03-07 17:21   ` Simon Horman
2023-03-08  9:39   ` Sergei Shtylyov
2023-03-07 16:30 ` [PATCH 08/11] mmc: renesas_sdhi: " Wolfram Sang
2023-03-09 15:02   ` Ulf Hansson
2023-03-07 16:30 ` [PATCH 09/11] usb: host: xhci-rcar: remove leftover quirk handling Wolfram Sang
2023-03-07 16:30 ` [PATCH 10/11] usb: host: xhci-rcar: remove R-Car H3 ES1.* handling Wolfram Sang
2023-03-07 16:30 ` [PATCH 11/11] usb: gadget: udc: renesas_usb3: " Wolfram Sang
2023-03-09  7:30 ` [PATCH 00/11] tree-wide: remove support for Renesas R-Car H3 ES1 patchwork-bot+netdevbpf

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