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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org, david@protonic.nl
Subject: Re: [PATCH v2 12/13] of: add barebox-serial driver
Date: Tue, 11 Aug 2020 10:58:47 +0200	[thread overview]
Message-ID: <20200811085847.ut5mfcjbt2bncsro@pengutronix.de> (raw)
In-Reply-To: <20200811083401.GK9475@pengutronix.de>


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On Tue, Aug 11, 2020 at 10:34:01AM +0200, Sascha Hauer wrote:
> On Wed, Aug 05, 2020 at 12:16:27PM +0200, Oleksij Rempel wrote:
> > Provide a driver which should act as nvmem consumer
> > for board serial number information.
> > 
> > To make use of this driver, DTS should contain a serial
> > node with compatibe "barebox,serial" and nvmem-cell-names
> > "serial-number":
> > 
> > ...
> > 	chosen {
> > 		serial {
> > 			compatible = "barebox,serial";
> > 			nvmem-cell-names = "serial-number";
> > 			nvmem-cells = &some_provider;
> > 		};
> > 	};
> 
> This driver only works when the EEPROM or whatever provides the NVMEM
> contains the serial number in exactly the same format as shall be added
> to the /serial-number property. This seems to be a special case only and
> doesn't seem to justify a generic driver.

As with usual devicetree based solution we can add additional
compatibles to better describe a variant or quirk which should be used
to convert raw data to the serial number in usable for environment and
device tree way. I hope, by having generic drivers other users will alight
with it by making new products or extend existing driver by mainlining
existing products.

Regards,
Oleksij
-- 
Pengutronix e.K.                           |                             |
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31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
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  reply	other threads:[~2020-08-11  8:58 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-05 10:16 [PATCH v2 00/13] prepare Protonic board code for mainline Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 01/13] ARM: dts: imx6q-prti6q: fix PHY register Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 02/13] ARM: dts: imx6: vicut1: fix network support Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 03/13] of: base: register DT root as device Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 04/13] ARM: embest-riotboard: port board file to the driver model Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 05/13] net: port nvmem_get_mac_address() from linux kernel Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 06/13] of: of_net: sync of_get_mac_address() with latest kernel version Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 07/13] net: fec_imx: use of_get_mac_address() to get mac address out of DT Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 08/13] of: of_device_get_match_compatible() helper Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 09/13] gpiolib: add gpio_array_to_id helper to get ID out of GPIO array Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 10/13] common: console_common: add of_console_get_by_alias() helper Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 11/13] ARM: protonic-imx6: port Protonic specific board code Oleksij Rempel
2020-08-05 10:16 ` [PATCH v2 12/13] of: add barebox-serial driver Oleksij Rempel
2020-08-11  8:34   ` Sascha Hauer
2020-08-11  8:58     ` Oleksij Rempel [this message]
2020-08-11  9:52       ` David Jander
2020-08-05 10:16 ` [PATCH v2 13/13] ARM: dts: imx6q-prti6q: add barebox, serial-number node Oleksij Rempel
2020-08-11 11:12 ` [PATCH v2 00/13] prepare Protonic board code for mainline Sascha Hauer

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