From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 946A1ECDE5F for ; Mon, 23 Jul 2018 16:14:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D64320854 for ; Mon, 23 Jul 2018 16:14:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D64320854 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388392AbeGWRQX convert rfc822-to-8bit (ORCPT ); Mon, 23 Jul 2018 13:16:23 -0400 Received: from mail.bootlin.com ([62.4.15.54]:58942 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387970AbeGWRQX (ORCPT ); Mon, 23 Jul 2018 13:16:23 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id 0551920733; Mon, 23 Jul 2018 18:14:25 +0200 (CEST) Received: from bbrezillon (unknown [91.160.177.164]) by mail.bootlin.com (Postfix) with ESMTPSA id B458F2069C; Mon, 23 Jul 2018 18:14:24 +0200 (CEST) Date: Mon, 23 Jul 2018 18:14:24 +0200 From: Boris Brezillon To: Arnd Bergmann Cc: Randy Dunlap , Anders Roxell , Miquel Raynal , Linux Kernel Mailing List , Rob Herring , DTML Subject: Re: [PATCH] drivers/memory/Kconfig: Add CONFIG_OF dependency Message-ID: <20180723181424.3c07f5b8@bbrezillon> In-Reply-To: References: <20180721200049.7553-1-anders.roxell@linaro.org> <20180722082939.2de739f1@bbrezillon> <20180723114107.664164d2@bbrezillon> X-Mailer: Claws Mail 3.15.0-dirty (GTK+ 2.24.31; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 23 Jul 2018 18:04:52 +0200 Arnd Bergmann wrote: > On Mon, Jul 23, 2018 at 5:40 PM, Arnd Bergmann wrote: > > On Mon, Jul 23, 2018 at 11:41 AM, Boris Brezillon > > wrote: > >> On Mon, 23 Jul 2018 11:34:43 +0200 > >> Arnd Bergmann wrote: > >> > >>> On Sun, Jul 22, 2018 at 8:29 AM, Boris Brezillon > >>> wrote: > >>> > +Arnd, Rob and the DT ML. > >>> > > >>> > On Sat, 21 Jul 2018 14:53:47 -0700 > >>> > Randy Dunlap wrote: > >>> > > >>> >> On 07/21/2018 01:00 PM, Anders Roxell wrote: > >>> >> > JZ4780_NEMC doesn't depend on OF, and if OF isn't enabled we get this > >>> >> > error: > >>> >> > drivers/memory/jz4780-nemc.c: In function ‘jz4780_nemc_num_banks’: > >>> >> > drivers/memory/jz4780-nemc.c:72:10: error: implicit declaration of > >>> >> > function ‘of_read_number’; did you mean ‘down_read_nested’? > >>> >> > [-Werror=implicit-function-declaration] > >>> >> > bank = of_read_number(prop, 1); > >>> >> > ^~~~~~~~~~~~~~ > >>> >> > down_read_nested > >>> > > >>> > Looks like of.h defines stubs so that people can compile-test without > >>> > CONFIG_OF selected. Maybe we should move of_read_number() and > >>> > of_read_ulong() out of the #ifdef CONFIG_OF section. > >>> > >>> That seems fine, though the added dependency seems appropriate > >>> here as well. of_read_number() is rarely used, and for the most part in > >>> powerpc specific code that is guaranteed to have CONFIG_OF enabled, > >>> so it's not that likely to cause many more problems. > >> > >> Ok, then I'll let Miquel apply Anders' patch to the NAND tree. > >> > >> Thanks for your feedback. > > > > My randconfig build bot just ran into a second problem with this driver > > with CONFIG_GPIOLIB disabled: > > > > drivers/mtd/nand/raw/jz4740_nand.c: In function 'jz_nand_dev_ready': > > drivers/mtd/nand/raw/jz4740_nand.c:133:9: error: implicit declaration > > of function 'gpiod_get_value_cansleep'; did you mean > > 'gpio_get_value_cansleep'? [-Werror=implicit-function-declaration] > > return gpiod_get_value_cansleep(nand->busy_gpio); > > ^~~~~~~~~~~~~~~~~~~~~~~~ > > gpio_get_value_cansleep > > drivers/mtd/nand/raw/jz4740_nand.c: In function 'jz_nand_probe': > > drivers/mtd/nand/raw/jz4740_nand.c:388:20: error: implicit declaration > > of function 'devm_gpiod_get_optional'; did you mean > > 'devm_gpio_request_one'? [-Werror=implicit-function-declaration] > > nand->busy_gpio = devm_gpiod_get_optional(&pdev->dev, "busy", GPIOD_IN); > > ^~~~~~~~~~~~~~~~~~~~~~~ > > devm_gpio_request_one > > drivers/mtd/nand/raw/jz4740_nand.c:388:64: error: 'GPIOD_IN' > > undeclared (first use in this function); did you mean 'GPIOF_IN'? > > nand->busy_gpio = devm_gpiod_get_optional(&pdev->dev, "busy", GPIOD_IN); > > ^~~~~~~~ > > GPIOF_IN > > > > > > We could add another dependency here or (my preference) include > > linux/gpio/consumer.h to fix that. Do you want a separate patch for > > it, or should Anders send a combined patch? > > One more failure, not analyzed yet: > > /git/arm-soc/drivers/mtd/nand/raw/jz4740_nand.c: In function > 'jz_nand_select_chip': > /git/arm-soc/drivers/mtd/nand/raw/jz4740_nand.c:87:9: error: implicit > declaration of function 'readl'; did you mean 'krealloc'? > [-Werror=implicit-function-declaration] > ctrl = readl(nand->base + JZ_REG_NAND_CTRL); > ^~~~~ Yep, somehow io.h was indirectly included by gpio.h. I fixed that in my patch when replacing gpio.h by gpio/consumer.h by including linux/io.h.