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=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 8B5BFC43331 for ; Mon, 11 Nov 2019 06:44:28 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5C7AF214E0 for ; Mon, 11 Nov 2019 06:44:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="gU96R7MR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C7AF214E0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amlogic.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ve3y3Scsrj/ZuHGnI62b8BykReSkcUgKdKIn09SCfV8=; b=gU96R7MR0WyfzM rQYhA/OuoQ+tp1NHtorVP2l8APCcvKWC5Ot/xZSfW3J6tGSyLKSSROKVmPRxUHzyFVzhNNHMeEeEW /rbjtiMJE34aBj7MuxxEK4TVpuYcowGU5FqC6oGL+bNi54aCYHYLgy4AaDL/09CQ8WWkD9Nmrusgo GyyajFSeOQYlhd5ViMVnJE3Msi8ofWRMq2uCb6SNyKABSJN60wNy29QV5iDT1Uk7CNORTQxncRbj4 shxCLxOFJYXZpHYUb9DQJ7mjeK1iDESPfB4TB+TZf5+xOZeR1e2N17UatCFAeBjgdkhFbuce3uPgX BcjXxG3g+lhlI8Cdyi+Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iU3Qw-0005Ca-LR; Mon, 11 Nov 2019 06:44:18 +0000 Received: from mail-sz.amlogic.com ([211.162.65.117]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iU3Qt-0005Bc-Jp; Mon, 11 Nov 2019 06:44:17 +0000 Received: from [10.28.39.106] (10.28.39.106) by mail-sz.amlogic.com (10.28.11.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1591.10; Mon, 11 Nov 2019 14:44:28 +0800 Subject: Re: [PATCH v5 1/3] pinctrl: meson: add a new callback for SoCs fixup To: Neil Armstrong , Linus Walleij , References: <1573203636-7436-1-git-send-email-qianggui.song@amlogic.com> <1573203636-7436-2-git-send-email-qianggui.song@amlogic.com> <54809378-d4b0-2013-eb22-d6570eff2a8c@baylibre.com> From: Qianggui Song Message-ID: Date: Mon, 11 Nov 2019 14:44:28 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: <54809378-d4b0-2013-eb22-d6570eff2a8c@baylibre.com> Content-Language: en-US X-Originating-IP: [10.28.39.106] X-ClientProxiedBy: mail-sz.amlogic.com (10.28.11.5) To mail-sz.amlogic.com (10.28.11.5) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191110_224415_659414_0E901506 X-CRM114-Status: GOOD ( 17.49 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Hanjie Lin , Jianxin Pan , Martin Blumenstingl , Kevin Hilman , linux-kernel@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org, Carlo Caione , linux-amlogic@lists.infradead.org, Xingyu Chen , Jerome Brunet Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 2019/11/8 20:50, Neil Armstrong wrote: > Hi, > > On 08/11/2019 10:00, Qianggui Song wrote: >> In meson_pinctrl_parse_dt, it contains two parts: reg parsing and >> SoC relative fixup for AO. Several fixups in the same code make it hard >> to maintain, so move all fixups to each SoC's callback and make >> meson_pinctrl_parse_dt just do the reg parsing, separate these two >> parts.Overview of all current Meson SoCs fixup is as below: >> >> +------+--------------------------------------+--------------------------+ >> | | | | >> | SoC | EE domain | AO domain | >> +------+--------------------------------------+--------------------------+ >> |m8 | parse regs: | parse regs: | >> |m8b | gpio,mux,pull,pull-enable(skip ds) | gpio,mux,pull(skip ds)| >> |gxl | fixup: | fixup: | >> |gxbb | no | pull-enable = pull; | >> |axg | | | >> +------+--------------------------------------+--------------------------+ >> |g12a | parse regs: | parse regs: | >> |sm1 | gpio,mux,pull,pull-enable,ds | gpio,mux,ds | >> | | fixup: | fixup: | >> | | no | pull = gpio; | >> | | | pull-enable = gpio; | >> +------+--------------------------------------+--------------------------+ >> |a1 or | parse regs: | >> |later | gpio/mux (without ao domain) | >> |SoCs | fixup: | >> | | pull = gpio; pull-enable = gpio; ds = gpio; | >> +------+-----------------------------------------------------------------+ >> Since m8-axg share the same ao fixup, make a common function >> meson8_aobus_parse_dt_extra to do the job. >> >> Signed-off-by: Qianggui Song >> --- >> drivers/pinctrl/meson/pinctrl-meson-axg.c | 1 + >> drivers/pinctrl/meson/pinctrl-meson-g12a.c | 9 +++++++++ >> drivers/pinctrl/meson/pinctrl-meson-gxbb.c | 1 + >> drivers/pinctrl/meson/pinctrl-meson-gxl.c | 1 + >> drivers/pinctrl/meson/pinctrl-meson.c | 25 ++++++++++++++++++------- >> drivers/pinctrl/meson/pinctrl-meson.h | 5 +++++ >> drivers/pinctrl/meson/pinctrl-meson8.c | 1 + >> drivers/pinctrl/meson/pinctrl-meson8b.c | 1 + >> 8 files changed, 37 insertions(+), 7 deletions(-) >> >> diff --git a/drivers/pinctrl/meson/pinctrl-meson-axg.c b/drivers/pinctrl/meson/pinctrl-meson-axg.c >> index ad502eda4afa..072765db93d7 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson-axg.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson-axg.c >> @@ -1066,6 +1066,7 @@ >> .num_banks = ARRAY_SIZE(meson_axg_aobus_banks), >> .pmx_ops = &meson_axg_pmx_ops, >> .pmx_data = &meson_axg_aobus_pmx_banks_data, >> + .parse_dt = meson8_aobus_parse_dt_extra, >> }; >> >> static const struct of_device_id meson_axg_pinctrl_dt_match[] = { >> diff --git a/drivers/pinctrl/meson/pinctrl-meson-g12a.c b/drivers/pinctrl/meson/pinctrl-meson-g12a.c >> index 582665fd362a..41850e3c0091 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson-g12a.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson-g12a.c >> @@ -1362,6 +1362,14 @@ >> .num_pmx_banks = ARRAY_SIZE(meson_g12a_aobus_pmx_banks), >> }; >> >> +static int meson_g12a_aobus_parse_dt_extra(struct meson_pinctrl *pc) >> +{ >> + pc->reg_pull = pc->reg_gpio; >> + pc->reg_pullen = pc->reg_gpio; >> + >> + return 0; >> +} >> + >> static struct meson_pinctrl_data meson_g12a_periphs_pinctrl_data = { >> .name = "periphs-banks", >> .pins = meson_g12a_periphs_pins, >> @@ -1388,6 +1396,7 @@ >> .num_banks = ARRAY_SIZE(meson_g12a_aobus_banks), >> .pmx_ops = &meson_axg_pmx_ops, >> .pmx_data = &meson_g12a_aobus_pmx_banks_data, >> + .parse_dt = meson_g12a_aobus_parse_dt_extra, >> }; >> >> static const struct of_device_id meson_g12a_pinctrl_dt_match[] = { >> diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c >> index 5bfa56f3847e..926b9997159a 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c >> @@ -851,6 +851,7 @@ >> .num_funcs = ARRAY_SIZE(meson_gxbb_aobus_functions), >> .num_banks = ARRAY_SIZE(meson_gxbb_aobus_banks), >> .pmx_ops = &meson8_pmx_ops, >> + .parse_dt = meson8_aobus_parse_dt_extra, >> }; >> >> static const struct of_device_id meson_gxbb_pinctrl_dt_match[] = { >> diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxl.c b/drivers/pinctrl/meson/pinctrl-meson-gxl.c >> index 72c5373c8dc1..8b1a49f5da43 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson-gxl.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson-gxl.c >> @@ -820,6 +820,7 @@ >> .num_funcs = ARRAY_SIZE(meson_gxl_aobus_functions), >> .num_banks = ARRAY_SIZE(meson_gxl_aobus_banks), >> .pmx_ops = &meson8_pmx_ops, >> + .parse_dt = meson8_aobus_parse_dt_extra, >> }; >> >> static const struct of_device_id meson_gxl_pinctrl_dt_match[] = { >> diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c >> index 8bba9d053d9f..a812c6d986d9 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson.c >> @@ -625,7 +625,7 @@ static struct regmap *meson_map_resource(struct meson_pinctrl *pc, >> >> i = of_property_match_string(node, "reg-names", name); >> if (of_address_to_resource(node, i, &res)) >> - return ERR_PTR(-ENOENT); >> + return NULL; >> >> base = devm_ioremap_resource(pc->dev, &res); >> if (IS_ERR(base)) >> @@ -665,26 +665,24 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc, >> pc->of_node = gpio_np; >> >> pc->reg_mux = meson_map_resource(pc, gpio_np, "mux"); >> - if (IS_ERR(pc->reg_mux)) { >> + if (IS_ERR_OR_NULL(pc->reg_mux)) { >> dev_err(pc->dev, "mux registers not found\n"); >> return PTR_ERR(pc->reg_mux); > > If pc->reg_mux is NULL, it will return "0" here, which is wrong. > > Either keep the return ERR_PTR(-ENOENT); in meson_map_resource, or > return pc->reg_mux ? -ENOENT : PTR_ERR(pc->reg_mux); > Thanks. ERR_PTR(-ENOENT) to NULL make below region easy to handle, I will change to "return pc->reg_mux ? -ENOENT : PTR_ERR(pc->reg_mux);" >> } >> >> pc->reg_gpio = meson_map_resource(pc, gpio_np, "gpio"); >> - if (IS_ERR(pc->reg_gpio)) { >> + if (IS_ERR_OR_NULL(pc->reg_gpio)) { >> dev_err(pc->dev, "gpio registers not found\n"); >> return PTR_ERR(pc->reg_gpio); > > Ditto will do as above. > >> } >> >> pc->reg_pull = meson_map_resource(pc, gpio_np, "pull"); >> - /* Use gpio region if pull one is not present */ >> if (IS_ERR(pc->reg_pull)) >> - pc->reg_pull = pc->reg_gpio; >> + pc->reg_pull = NULL; >> >> pc->reg_pullen = meson_map_resource(pc, gpio_np, "pull-enable"); >> - /* Use pull region if pull-enable one is not present */ >> if (IS_ERR(pc->reg_pullen)) >> - pc->reg_pullen = pc->reg_pull; >> + pc->reg_pullen = NULL; >> >> pc->reg_ds = meson_map_resource(pc, gpio_np, "ds"); >> if (IS_ERR(pc->reg_ds)) { >> @@ -692,6 +690,19 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc, >> pc->reg_ds = NULL; >> } >> >> + if (pc->data->parse_dt) >> + return pc->data->parse_dt(pc); >> + >> + return 0; >> +} >> + >> +int meson8_aobus_parse_dt_extra(struct meson_pinctrl *pc) >> +{ >> + if (!pc->reg_pull) >> + return -EINVAL; >> + >> + pc->reg_pullen = pc->reg_pull; >> + >> return 0; >> } >> >> diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h >> index c696f3241a36..bfa1d3599333 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson.h >> +++ b/drivers/pinctrl/meson/pinctrl-meson.h >> @@ -11,6 +11,8 @@ >> #include >> #include >> >> +struct meson_pinctrl; >> + >> /** >> * struct meson_pmx_group - a pinmux group >> * >> @@ -114,6 +116,7 @@ struct meson_pinctrl_data { >> unsigned int num_banks; >> const struct pinmux_ops *pmx_ops; >> void *pmx_data; >> + int (*parse_dt)(struct meson_pinctrl *pc); >> }; >> >> struct meson_pinctrl { >> @@ -171,3 +174,5 @@ int meson_pmx_get_groups(struct pinctrl_dev *pcdev, >> >> /* Common probe function */ >> int meson_pinctrl_probe(struct platform_device *pdev); >> +/* Common ao groups extra dt parse function for SoCs before g12a */ >> +int meson8_aobus_parse_dt_extra(struct meson_pinctrl *pc); >> diff --git a/drivers/pinctrl/meson/pinctrl-meson8.c b/drivers/pinctrl/meson/pinctrl-meson8.c >> index 0b97befa6335..dd17100efdcf 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson8.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson8.c >> @@ -1103,6 +1103,7 @@ >> .num_funcs = ARRAY_SIZE(meson8_aobus_functions), >> .num_banks = ARRAY_SIZE(meson8_aobus_banks), >> .pmx_ops = &meson8_pmx_ops, >> + .parse_dt = &meson8_aobus_parse_dt_extra, >> }; >> >> static const struct of_device_id meson8_pinctrl_dt_match[] = { >> diff --git a/drivers/pinctrl/meson/pinctrl-meson8b.c b/drivers/pinctrl/meson/pinctrl-meson8b.c >> index a7de388388e6..2d5339edd0b7 100644 >> --- a/drivers/pinctrl/meson/pinctrl-meson8b.c >> +++ b/drivers/pinctrl/meson/pinctrl-meson8b.c >> @@ -962,6 +962,7 @@ >> .num_funcs = ARRAY_SIZE(meson8b_aobus_functions), >> .num_banks = ARRAY_SIZE(meson8b_aobus_banks), >> .pmx_ops = &meson8_pmx_ops, >> + .parse_dt = &meson8_aobus_parse_dt_extra, >> }; >> >> static const struct of_device_id meson8b_pinctrl_dt_match[] = { >> > > . > _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic