Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752975AbZIOLQs (ORCPT ); Tue, 15 Sep 2009 07:16:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752616AbZIOLQm (ORCPT ); Tue, 15 Sep 2009 07:16:42 -0400 Received: from mail-yx0-f171.google.com ([209.85.210.171]:37032 "EHLO mail-yx0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751205AbZIOLQl convert rfc822-to-8bit (ORCPT ); Tue, 15 Sep 2009 07:16:41 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=dyl+uyKZx5UGtP2m6aSpBljkLlhlyGbbtyGatJskKhEHmhhYHY3OB12VCtKAMzpPeO SY7p0/5pRBuRfIxBPJa3Xr/2g3lePwbim7bKZGMiOLF2jTKhI9Miy4ORKkV4+Op2AqGp FH60P1NRfktu7TErDvaVQIHvtMgTIJ0kehwMI= MIME-Version: 1.0 In-Reply-To: <20090915055224.GD1132@core.coreip.homeip.net> References: <1252911864-19233-1-git-send-email-vapier@gentoo.org> <1252950003-9451-1-git-send-email-vapier@gentoo.org> <200909141049.50705.dmitry.torokhov@gmail.com> <8bd0f97a0909141102l5fa309f4ua1bedd0f1ac99295@mail.gmail.com> <4AAE8908.1000104@hvsistemas.es> <20090915055224.GD1132@core.coreip.homeip.net> From: Mike Frysinger Date: Tue, 15 Sep 2009 07:16:25 -0400 Message-ID: <8bd0f97a0909150416j444999e4sfcb6ad77146a97d7@mail.gmail.com> Subject: Re: [PATCH v3] input/keyboard: new OpenCores Keyboard Controller driver To: Dmitry Torokhov Cc: Javier Herrero , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan Wu Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2114 Lines: 51 On Tue, Sep 15, 2009 at 01:52, Dmitry Torokhov wrote: > On Mon, Sep 14, 2009 at 08:18:48PM +0200, Javier Herrero wrote: >> It has a bit long since last time I touched the driver, so I should also >> try to refresh my memory about it :). I suppose that you're right in the >> double allocation issue (I took another keyboard driver as a starting >> point and probably the double allocation was already there...), so feel >> free to introduce the change and I will test it as soon as I can. >> >> About the exact scancode - key mapping, the reason is that since the >> FPGA opencores device already implements a translation table, I found >> that another translation table sounded a bit redundant. > > OK, below is what I have now... One concern though - don't we need to do > request_mem_region/ioremap for the addr_res? i think so ... these operations are nops on a Blackfin CPU which is probably why it "just works". > +struct opencores_kbd { > +       struct input_dev *input; > +       void __iomem *addr; > +       int irq; > +       struct resource *irq_res; the irq_res member is no longer needed +#define NUM_KEYS 128 > +       unsigned short keycodes[NUM_KEYS]; since this is the only usage of NUM_KEYS, could just inline it now ... > +       error = request_irq(irq, &opencores_kbd_isr, > +                           IRQF_TRIGGER_RISING, pdev->name, opencores_kbd); > +       if (error) { > +               dev_err(&pdev->dev, "unable to claim irq %d\n", irq); > +               goto err_free_mem; > +       } > + > +       error = input_register_device(input); > +       if (error) { > +               dev_err(&pdev->dev, "unable to register input device\n"); > +               goto err_free_irq; > +       } the input layer can handle input even if it's not registered ? -mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/