From: Guenter Roeck <linux@roeck-us.net>
To: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org, Lee Jones <lee.jones@linaro.org>,
Arnd Bergmann <arnd@arndb.de>, Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [1/2] mfd: syscon: Support native-endian regmaps
Date: Fri, 14 Oct 2016 10:43:08 -0700 [thread overview]
Message-ID: <20161014174308.GA22866@roeck-us.net> (raw)
In-Reply-To: <20161014091732.27536-1-paul.burton@imgtec.com>
On Fri, Oct 14, 2016 at 10:17:31AM +0100, Paul Burton wrote:
> The regmap devicetree binding documentation states that a native-endian
> property should be supported as well as big-endian & little-endian,
> however syscon in its duplication of the parsing of these properties
> omits support for native-endian. Fix this by setting
> REGMAP_ENDIAN_NATIVE when a native-endian property is found.
>
> Signed-off-by: Paul Burton <paul.burton@imgtec.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: Ralf Baechle <ralf@linux-mips.org>
> Cc: linux-mips@linux-mips.org
Needed for 'MIPS: malta: Fixup reboot' to work.
Tested-by: Guenter Roeck <linux@roeck-us.net>
Makes me wonder though how the other syscon nodes already using
'native-endian' work.
Thanks,
Guenter
> ---
> drivers/mfd/syscon.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
> index 2f2225e..b93fe4c 100644
> --- a/drivers/mfd/syscon.c
> +++ b/drivers/mfd/syscon.c
> @@ -73,8 +73,10 @@ static struct syscon *of_syscon_register(struct device_node *np)
> /* Parse the device's DT node for an endianness specification */
> if (of_property_read_bool(np, "big-endian"))
> syscon_config.val_format_endian = REGMAP_ENDIAN_BIG;
> - else if (of_property_read_bool(np, "little-endian"))
> + else if (of_property_read_bool(np, "little-endian"))
> syscon_config.val_format_endian = REGMAP_ENDIAN_LITTLE;
> + else if (of_property_read_bool(np, "native-endian"))
> + syscon_config.val_format_endian = REGMAP_ENDIAN_NATIVE;
>
> /*
> * search for reg-io-width property in DT. If it is not provided,
next prev parent reply other threads:[~2016-10-14 17:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 7:09 Commit 'MIPS: Malta: Use syscon-reboot driver to reboot' in -next and changed reset behavior Guenter Roeck
2016-10-14 9:17 ` [PATCH 1/2] mfd: syscon: Support native-endian regmaps Paul Burton
2016-10-14 9:17 ` Paul Burton
2016-10-14 9:17 ` [PATCH 2/2] MIPS: malta: Fixup reboot Paul Burton
2016-10-14 9:17 ` Paul Burton
2016-10-14 17:39 ` [2/2] " Guenter Roeck
2016-10-25 10:48 ` [PATCH 2/2] " Maciej W. Rozycki
2016-10-25 10:48 ` Maciej W. Rozycki
2016-10-14 17:43 ` Guenter Roeck [this message]
2016-10-25 10:47 ` [PATCH 1/2] mfd: syscon: Support native-endian regmaps Maciej W. Rozycki
2016-10-25 10:47 ` Maciej W. Rozycki
2016-10-26 13:58 ` Lee Jones
2016-11-06 5:09 ` Guenter Roeck
2016-11-06 5:12 ` Guenter Roeck
2016-11-07 9:41 ` Lee Jones
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