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: Thu, 17 Apr 2014 15:18:11 +0530 From: Laxman Dewangan <ldewangan@...dia.com> To: Andrew Bresticker <abrestic@...omium.org>, Linus Walleij <linus.walleij@...aro.org>, Stephen Warren <swarren@...dotorg.org> CC: "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] pinctrl: as3722: fix handling of GPIO invert bit Hi Andrew, On Wednesday 16 April 2014 06:55 AM, Andrew Bresticker wrote: > diff --git a/drivers/pinctrl/pinctrl-as3722.c b/drivers/pinctrl/pinctrl-as3722.c > index 92ed4b2..c862f9c0 100644 > --- a/drivers/pinctrl/pinctrl-as3722.c > +++ b/drivers/pinctrl/pinctrl-as3722.c > @@ -64,7 +64,6 @@ struct as3722_pin_function { > }; > > struct as3722_gpio_pin_control { > - bool enable_gpio_invert; > unsigned mode_prop; > int io_function; > }; Instead of removing this flag and calling read of register on every gpio set, better if we update this flag on probe once and use this for entire life. So adding the code in probe() as for (i = 0; i < ARRAY_SIZE(as3722_pingroups); ++i) { int gpio_cntr_reg = AS3722_GPIOn_CONTROL_REG(i); u32 val; ret = as3722_read(as3722, gpio_cntr_reg, &val); if (!ret) as_pci->gpio_control[i].enable_gpio_invert = !!(val & AS3722_GPIO_INV); } Thanks, Laxman -- 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