From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755291AbeCSHJI (ORCPT ); Mon, 19 Mar 2018 03:09:08 -0400 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:43714 "EHLO smtp2200-217.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754531AbeCSHJH (ORCPT ); Mon, 19 Mar 2018 03:09:07 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.03135664|-1;CH=blue;FP=0|0|0|0|0|-1|-1|-1;HT=e02c03305;MF=ren_guo@c-sky.com;NM=1;PH=DS;RN=11;RT=11;SR=0;TI=SMTPD_---.BMabT1I_1521443339; Date: Mon, 19 Mar 2018 15:08:59 +0800 From: Guo Ren To: Mark Rutland Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, daniel.lezcano@linaro.org, jason@lakedaemon.net, arnd@arndb.de, c-sky_gcc_upstream@c-sky.com, gnu-csky@mentor.com, thomas.petazzoni@bootlin.com, wbx@uclibc-ng.org Subject: Re: [PATCH 19/19] irqchip: add irq-nationalchip.c and irq-csky.c Message-ID: <20180319070859.GC21923@guoren> References: <62e687d3eb67505aa6f4d4d01ce268fd432bf58e.1521399976.git.ren_guo@c-sky.com> <20180319042535.fzssdiu4ot7nyhwe@salmiak> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180319042535.fzssdiu4ot7nyhwe@salmiak> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 19, 2018 at 04:26:00AM +0000, Mark Rutland wrote: > On Mon, Mar 19, 2018 at 03:51:41AM +0800, Guo Ren wrote: > > +static unsigned int intc_reg; > > This should be a void __iomem *ptr; > OK > > +#define CK_VA_INTC_ICR (void *)(intc_reg + 0x00) /* Interrupt control register(High 16bits) */ > > +#define CK_VA_INTC_ISR (void *)(intc_reg + 0x00) /* Interrupt status register(Low 16bits) */ > > +#define CK_VA_INTC_NEN31_00 (void *)(intc_reg + 0x10) /* Normal interrupt enable register Low */ > > +#define CK_VA_INTC_NEN63_32 (void *)(intc_reg + 0x28) /* Normal interrupt enable register High */ > > +#define CK_VA_INTC_IFR31_00 (void *)(intc_reg + 0x08) /* Normal interrupt force register Low */ > > +#define CK_VA_INTC_IFR63_32 (void *)(intc_reg + 0x20) /* Normal interrupt force register High */ > > +#define CK_VA_INTC_SOURCE (void *)(intc_reg + 0x40) /* Proiority Level Select Registers 0 */ > > Please use mnemonics for the offsets, and add the base address in the IO > accessors. > OK > > + temp = __raw_readl(CK_VA_INTC_NEN31_00); > > Please use readl_relaxed() rather than __raw_readl(). > OK > > + __raw_writel(temp, CK_VA_INTC_NEN31_00); > > Likewise, please use writel_relaxed() rather than __raw_writel(). > OK > These need devicetree bindings. Please see > Documentation/devicetree/bindings/submitting-patches.txt. > OK > Please avoid assembly in generic driver code. Here you cna use __ffs64() after > combining the two halves into a 64-bit quantity, or you could use ffs() on each > half. > OK > > +IRQCHIP_DECLARE(nationalchip_intc_v1_ave, "nationalchip,intc-v1,ave", intc_init); > > This needs a devicetree binding document. OK Best Regards Guo Ren