linux-kernel - Re: [PATCH v1 1/1] mfd: syscon: Remove repetition of the regmap_get_val

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Message-ID: <b108978a-77ff-68aa-8c7a-1f6e67629608@leemhuis.info>
Date:   Sun, 23 Oct 2022 17:08:02 +0200
From:   Thorsten Leemhuis <linux@...mhuis.info>
To:     regressions@...ts.linux.dev
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] mfd: syscon: Remove repetition of the
 regmap_get_val_endian()

On 09.10.22 18:39, Guenter Roeck wrote:
> On Mon, Aug 08, 2022 at 05:08:11PM +0300, Andy Shevchenko wrote:
>> Since the commit 0dbdb76c0ca8 ("regmap: mmio: Parse endianness
>> definitions from DT") regmap MMIO parses DT itsef, no need to
>> repeat this in the caller(s).
>>
>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> 
> This patch results in reboot failures for all big endian mips emulations.
> 
> Sample log:
> 
> Network interface test passed
> Boot successful.
> Rebooting
> reboot: Restarting system
> Unable to restart system
> Reboot failed -- System halted
> 
> The problem is not seen with little endian mips emulations. Reverting
> this patch fixes the problem. Bisect log attached.
> 
> #regzbot introduced: 72a95859728a
> #regzbot title: Reboot failure on big endian mips systems

#regzbot monitor: https://lore.kernel.org/all/Y0GZwkDwnak2ReTt@zx2c4.com/