From patchwork Mon Jul 20 14:54:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 237153 Delivered-To: patch@linaro.org Received: by 2002:a54:2c11:0:0:0:0:0 with SMTP id g17csp1813385ecp; Mon, 20 Jul 2020 07:54:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJytwhLA8qv27h+BMcCPZkgluWILBh7qAU2xZwcZ68bfcORkl0vQSGWorfAyIHb1Zbi6ouCz X-Received: by 2002:a05:6402:1592:: with SMTP id c18mr22648699edv.258.1595256881375; Mon, 20 Jul 2020 07:54:41 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595256881; cv=none; d=google.com; s=arc-20160816; b=t5pK3T4ji3E/9njij9jzkkOLxqoKlU+w9DExW7NJF9P0crH7S0O7ipE3NoTFQSPIxv aJg8BgILexKkeUb+C9Juo8jHIVLwGd/i6kd1I59Oop1lLbZgGhpEdzHM0mnnhFNmCi6D 2yVv5iaopV9S78lgDPz1fhFdktBIirykNiQrbB5uX2UaQPdy1Jrjf1kdATBKz+XLNIue HiLAjK7/YFYA9e6kWu8X9mhwtS+8mHzZdrI4PG689AhPnrX7SvPgTUrUotORm9lx+7RF 9uBavrhPtNH2dWmkpQuBGr4vhSo/XLllU7w1zguu5RLSBD8vNKP8VdYPcmD0Z+aXEX1y xgdg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :dkim-signature; bh=dNkhDnXxTeq6xkNvQDe6yXKUfSRDacYp3Jy9rfFuAWg=; b=nzRPM2OWUWu8fe3XsyvxrmAOsMLjnCTEssEwg86zMixEeeQ0Sx5ZmXasuQhxS2lQOU ocxgFepmFJ4jTbxjKJC2howkksc5F0Su+oUeHkpiOYmSfjFOtsxncGWebH0hy09VEQPB DWC8tggIPNzFsXpgrapxPdaZ0OIkwJ+cy3myMa+19cTJWNtPJVSInwUsHUSJxXdTCCdl EHlpYPBlUHjus8F7e2Gq05rGCRoeg34jHRjeeSKFa7Z5aqBKVROJnycPiJjLJ7B0OOei rP6AIj2WkF2GuuaqKN+CmMzVjILisGvL7dPEuSzOQAsLQ3OPxCa84wozKqzc1f1FU52G OsjA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ceECXUVp; spf=pass (google.com: domain of linux-samsung-soc-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-samsung-soc-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i6si10748011edv.52.2020.07.20.07.54.41; Mon, 20 Jul 2020 07:54:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-samsung-soc-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ceECXUVp; spf=pass (google.com: domain of linux-samsung-soc-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-samsung-soc-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728855AbgGTOyk (ORCPT + 4 others); Mon, 20 Jul 2020 10:54:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:40100 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726506AbgGTOyi (ORCPT ); Mon, 20 Jul 2020 10:54:38 -0400 Received: from kozik-lap.mshome.net (unknown [194.230.155.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5CE2D22B4E; Mon, 20 Jul 2020 14:54:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595256877; bh=KHxz9t+8FOOhT2bgEpCh+cCxIFEM3aYfu3Mr44irGic=; h=From:To:Cc:Subject:Date:From; b=ceECXUVpFJePaukrP/YvG7DbA47RQx2PYZSFk3kdJ6mTaJDC8oaA7rNnjxCeoz60P ihnNQRLCisenLvSirgIHRnM9FQCRm5FGEUiZwVOuQY21nKpvyIchd8Prlqt7KmTs3D 5j6XuKrwL7gsHW/WxKmceZq8l+G218Hg1voLhmhw= From: Krzysztof Kozlowski To: linus.walleij@linaro.org Cc: linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-gpio@vger.kernel.org, Marek Szyprowski , Krzysztof Kozlowski Subject: [PATCH] pinctrl: samsung: Use bank name as irqchip name Date: Mon, 20 Jul 2020 16:54:12 +0200 Message-Id: <20200720145412.24221-1-krzk@kernel.org> X-Mailer: git-send-email 2.17.1 Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Marek Szyprowski Use the bank name as the irqchip name. This name is later visible in /proc/interrupts, what makes it possible to easily identify each GPIO interrupt. /proc/interrupts before this patch: 143: 0 exynos4210_wkup_irq_chip 7 Edge hdmi 144: 0 exynos4210_wkup_irq_chip 6 Level wm8994 145: 1 exynos4210_wkup_irq_chip 7 Edge max77686-pmic, max77686-rtc 146: 1 exynos_gpio_irq_chip 3 Edge 3-0048 /proc/interrupts after this patch: 143: 0 gpx3 7 Edge hdmi 144: 0 gpx3 6 Level wm8994 145: 1 gpx0 7 Edge max77686-pmic, max77686-rtc 146: 1 gpm2 3 Edge 3-0048 Handling of the eint_wake_mask_value has been reworked, because each bank has now its own exynos_irq_chip structure allocated. Signed-off-by: Marek Szyprowski Signed-off-by: Krzysztof Kozlowski --- Hi Linus, I have only one patch queued for Samsung pinctrl. Can you apply it directly? Best regards, Krzysztof --- drivers/pinctrl/samsung/pinctrl-exynos.c | 58 +++++++++++++----------- 1 file changed, 32 insertions(+), 26 deletions(-) -- 2.17.1 diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c index 84501c785473..b9ea09fabf84 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos.c @@ -38,7 +38,7 @@ struct exynos_irq_chip { u32 eint_con; u32 eint_mask; u32 eint_pend; - u32 eint_wake_mask_value; + u32 *eint_wake_mask_value; u32 eint_wake_mask_reg; void (*set_eint_wakeup_mask)(struct samsung_pinctrl_drv_data *drvdata, struct exynos_irq_chip *irq_chip); @@ -207,7 +207,7 @@ static void exynos_irq_release_resources(struct irq_data *irqd) /* * irq_chip for gpio interrupts. */ -static struct exynos_irq_chip exynos_gpio_irq_chip = { +static const struct exynos_irq_chip exynos_gpio_irq_chip __initconst = { .chip = { .name = "exynos_gpio_irq_chip", .irq_unmask = exynos_irq_unmask, @@ -274,7 +274,7 @@ struct exynos_eint_gpio_save { * exynos_eint_gpio_init() - setup handling of external gpio interrupts. * @d: driver data of samsung pinctrl driver. */ -int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) +__init int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) { struct samsung_pin_bank *bank; struct device *dev = d->dev; @@ -297,6 +297,15 @@ int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) for (i = 0; i < d->nr_banks; ++i, ++bank) { if (bank->eint_type != EINT_TYPE_GPIO) continue; + + bank->irq_chip = devm_kmemdup(dev, &exynos_gpio_irq_chip, + sizeof(*bank->irq_chip), GFP_KERNEL); + if (!bank->irq_chip) { + ret = -ENOMEM; + goto err_domains; + } + bank->irq_chip->chip.name = bank->name; + bank->irq_domain = irq_domain_add_linear(bank->of_node, bank->nr_pins, &exynos_eint_irqd_ops, bank); if (!bank->irq_domain) { @@ -313,7 +322,6 @@ int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) goto err_domains; } - bank->irq_chip = &exynos_gpio_irq_chip; } return 0; @@ -338,9 +346,9 @@ static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on) pr_info("wake %s for irq %d\n", on ? "enabled" : "disabled", irqd->irq); if (!on) - our_chip->eint_wake_mask_value |= bit; + *our_chip->eint_wake_mask_value |= bit; else - our_chip->eint_wake_mask_value &= ~bit; + *our_chip->eint_wake_mask_value &= ~bit; return 0; } @@ -360,10 +368,10 @@ exynos_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata, pmu_regs = drvdata->retention_ctrl->priv; dev_info(drvdata->dev, "Setting external wakeup interrupt mask: 0x%x\n", - irq_chip->eint_wake_mask_value); + *irq_chip->eint_wake_mask_value); regmap_write(pmu_regs, irq_chip->eint_wake_mask_reg, - irq_chip->eint_wake_mask_value); + *irq_chip->eint_wake_mask_value); } static void @@ -382,10 +390,11 @@ s5pv210_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata, clk_base = (void __iomem *) drvdata->retention_ctrl->priv; - __raw_writel(irq_chip->eint_wake_mask_value, + __raw_writel(*irq_chip->eint_wake_mask_value, clk_base + irq_chip->eint_wake_mask_reg); } +static u32 eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED; /* * irq_chip for wakeup interrupts */ @@ -403,7 +412,7 @@ static const struct exynos_irq_chip s5pv210_wkup_irq_chip __initconst = { .eint_con = EXYNOS_WKUP_ECON_OFFSET, .eint_mask = EXYNOS_WKUP_EMASK_OFFSET, .eint_pend = EXYNOS_WKUP_EPEND_OFFSET, - .eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED, + .eint_wake_mask_value = &eint_wake_mask_value, /* Only differences with exynos4210_wkup_irq_chip: */ .eint_wake_mask_reg = S5PV210_EINT_WAKEUP_MASK, .set_eint_wakeup_mask = s5pv210_pinctrl_set_eint_wakeup_mask, @@ -423,7 +432,7 @@ static const struct exynos_irq_chip exynos4210_wkup_irq_chip __initconst = { .eint_con = EXYNOS_WKUP_ECON_OFFSET, .eint_mask = EXYNOS_WKUP_EMASK_OFFSET, .eint_pend = EXYNOS_WKUP_EPEND_OFFSET, - .eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED, + .eint_wake_mask_value = &eint_wake_mask_value, .eint_wake_mask_reg = EXYNOS_EINT_WAKEUP_MASK, .set_eint_wakeup_mask = exynos_pinctrl_set_eint_wakeup_mask, }; @@ -442,7 +451,7 @@ static const struct exynos_irq_chip exynos7_wkup_irq_chip __initconst = { .eint_con = EXYNOS7_WKUP_ECON_OFFSET, .eint_mask = EXYNOS7_WKUP_EMASK_OFFSET, .eint_pend = EXYNOS7_WKUP_EPEND_OFFSET, - .eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED, + .eint_wake_mask_value = &eint_wake_mask_value, .eint_wake_mask_reg = EXYNOS5433_EINT_WAKEUP_MASK, .set_eint_wakeup_mask = exynos_pinctrl_set_eint_wakeup_mask, }; @@ -513,7 +522,7 @@ static void exynos_irq_demux_eint16_31(struct irq_desc *desc) * exynos_eint_wkup_init() - setup handling of external wakeup interrupts. * @d: driver data of samsung pinctrl driver. */ -int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) +__init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) { struct device *dev = d->dev; struct device_node *wkup_np = NULL; @@ -521,7 +530,7 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) struct samsung_pin_bank *bank; struct exynos_weint_data *weint_data; struct exynos_muxed_weint_data *muxed_data; - struct exynos_irq_chip *irq_chip; + const struct exynos_irq_chip *irq_chip; unsigned int muxed_banks = 0; unsigned int i; int idx, irq; @@ -531,12 +540,7 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) match = of_match_node(exynos_wkup_irq_ids, np); if (match) { - irq_chip = kmemdup(match->data, - sizeof(*irq_chip), GFP_KERNEL); - if (!irq_chip) { - of_node_put(np); - return -ENOMEM; - } + irq_chip = match->data; wkup_np = np; break; } @@ -549,6 +553,14 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) if (bank->eint_type != EINT_TYPE_WKUP) continue; + bank->irq_chip = devm_kmemdup(dev, irq_chip, sizeof(*irq_chip), + GFP_KERNEL); + if (!bank->irq_chip) { + of_node_put(wkup_np); + return -ENOMEM; + } + bank->irq_chip->chip.name = bank->name; + bank->irq_domain = irq_domain_add_linear(bank->of_node, bank->nr_pins, &exynos_eint_irqd_ops, bank); if (!bank->irq_domain) { @@ -557,8 +569,6 @@ int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) return -ENXIO; } - bank->irq_chip = irq_chip; - if (!of_find_property(bank->of_node, "interrupts", NULL)) { bank->eint_type = EINT_TYPE_WKUP_MUX; ++muxed_banks; @@ -657,10 +667,6 @@ void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata) irq_chip = bank->irq_chip; irq_chip->set_eint_wakeup_mask(drvdata, irq_chip); - } else if (bank->irq_chip != irq_chip) { - dev_warn(drvdata->dev, - "More than one external wakeup interrupt chip configured (bank: %s). This is not supported by hardware nor by driver.\n", - bank->name); } } }