lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 2 Dec 2015 20:26:36 +0000 From: Simon Arlott <simon@...e.lp0.eu> To: Mark Brown <broonie@...nel.org> Cc: devicetree@...r.kernel.org, Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, linux-kernel@...r.kernel.org, Florian Fainelli <f.fainelli@...il.com>, Jonas Gorski <jogo@...nwrt.org> Subject: Re: [PATCH 1/2] regulator: Add brcm,bcm63xx-regulator device tree binding On 02/12/15 12:53, Mark Brown wrote: > On Wed, Dec 02, 2015 at 12:45:50PM -0000, Simon Arlott wrote: >> On Tue, December 1, 2015 22:16, Mark Brown wrote: > >> > Why are these in the DT, I would expect that if this is a driver for a >> > specific SoC all these properties would be known as a result of that. > >> This is a driver for multiple SoCs with the same regulator control in >> different places on different SoCs, so the location of it within the misc >> register needs to be provided in the DT: > >> BCM6362: >> #define MISC_BASE 0xb0001800 /* Miscellaneous Registers */ >> uint32 miscIddqCtrl; /* 0x48 */ > > This is the sort of thing you can pick up from the SoC compatible > strings. As things stand there is zero content in this driver that > relates to this SoC. There's always going to be very little content in the driver that relates to this SoC, given that a single bit flip enables/disables power. All other device tree drivers allow a register address to be specified for the device, how is an offset in the regmap any different? >> The mask is used as there's one bit per regulator in the register, but >> there's more than one way to express this in the DT: > > I wouldn't expect to see it in the device tree at all for a device > specific driver. If there isn't an individual entry in DT for each regulator, how is it supposed to work? There's no #regulator-cells property. -- Simon Arlott -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists