From patchwork Wed Oct 16 07:21:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 835954 Received: from mail-lj1-f170.google.com (mail-lj1-f170.google.com [209.85.208.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B6EB1B218C for ; Wed, 16 Oct 2024 07:21:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.170 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729063319; cv=none; b=FdiJTRLhvkZD1dngPV5UWnR/8R2dpFjEhlE0gmQGncKreSHIm2YYkuToE/+pti5H1y9PgPUl57E91XwavebcuTo2Qy+jgZTndXYtrwykAQQoc1rg0Xh82c+eSIxZqaC7px0bVD82G0Z8k7vxvIFCM9VhHYQJEjpkDY1kMaYGJOE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729063319; c=relaxed/simple; bh=JBspCVFtpJjpthgUxIJaESpNK6TktgdyO35oURkfSeM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YC1L0ukqi8QntwxApQ7DFgHPDn4RQhHqciUsFQvoV7W/jzMRNihRe280qXUQC1f2pc8R1IpfdsSOdW+x7en0FGJ4Og2m8Fn41dQFo2l6XDshjc4rs2AjrsBHhlLtrHSLFu+P8SNYYbXmd4+hKJg9vOMkMMxp2dU3w1GVVyNwpf8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=fJUxM1eO; arc=none smtp.client-ip=209.85.208.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="fJUxM1eO" Received: by mail-lj1-f170.google.com with SMTP id 38308e7fff4ca-2fabb837ddbso78540881fa.1 for ; Wed, 16 Oct 2024 00:21:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1729063316; x=1729668116; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=vX2MWErp0/u4Uf4asG1ORKJB5iRHzlOAqYylAI75SY0=; b=fJUxM1eOn5AH6DMuTs9HKCViQfduKSUesf9fxjQELZTRaCcMSmAeUMFGh/EhYG547t A9VeqoA7O3msTQ2i1j2x+kV1Tl9n8VS0jp98e61A76ddb5quWeEMcI0BG6V7c/5MEEIi M8hLhO5G2bMKAQ/RrOGSm1ZYvB7bZnTzG3VtqiiIYQ+A1EgOMs6bGU/FuQkZwS6XNHSa MxI1+7nwYk1szaxLUED4XNpd+SD+j1Askn06hdcd5uoGetCpnUqayLhk+ZzdA9559H9g lWw5IZNcmOwt7aT6xysDKKL22NLP0YOCSb/3QANRgO+UEwngg02syB0VOOYWNP1ATbbj Kl5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729063316; x=1729668116; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=vX2MWErp0/u4Uf4asG1ORKJB5iRHzlOAqYylAI75SY0=; b=f+mb6wWXVxc2/t0JNQZBb5eMRH2st9Gwgg7q+QjmIKrHU2RlsJaovanqM4As4ARmu/ ySrxC21T9nH+xUaC+02162PQFd+rajoqCXQJcCrjxy4+18ALhK1g/EWWtmVcWbZstjbI +bLFLP/Uw1L/1sT2pKn1ZDhXb1wWG56tkpTSKurUkZ5ywe0cXaJ2k0z1dHWDgxwgNfkM NwHUsAlBK5B194IYetjj2upIEgB+1Oaz6xdUL7MhdWhR78v1CcNBRyDEh/ZTbnL1ofb4 XeA3Ft/9MREUEzWKZhc02022TvNf6vlUHHiRotRyGj78w/X/u2syOZ61gjV4ag8K4/TQ NZ9Q== X-Gm-Message-State: AOJu0Ywwh9Hcj+fkrWn/mAKyfoRSVmzk9CX0x9SRCIeDJ5J+DX4vfflp TDSCM0lHKW4CX2RJr7T7uWswW0NXKTTHTayS6mxbTPa/pX+tnoON1fJV04LbL2c= X-Google-Smtp-Source: AGHT+IHbasEV4OEbnj6oWKrBr1odwTwS9/GUyVEzEp30I2Bp530ocpSedDMrkezLwO0TtyqXQOJKjw== X-Received: by 2002:a2e:be20:0:b0:2fb:5c84:929b with SMTP id 38308e7fff4ca-2fb5c849623mr44326191fa.36.1729063316217; Wed, 16 Oct 2024 00:21:56 -0700 (PDT) Received: from lino.lan ([85.235.12.238]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-2fb642a8fdesm1289761fa.5.2024.10.16.00.21.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Oct 2024 00:21:55 -0700 (PDT) From: Linus Walleij Date: Wed, 16 Oct 2024 09:21:53 +0200 Subject: [PATCH 2/2] gpio: mmio: Parse ngpios property Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241016-gpio-ngpios-v1-2-f16cf154f715@linaro.org> References: <20241016-gpio-ngpios-v1-0-f16cf154f715@linaro.org> In-Reply-To: <20241016-gpio-ngpios-v1-0-f16cf154f715@linaro.org> To: Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, Linus Walleij X-Mailer: b4 0.14.0 This makes the MMIO GPIO driver parse the ngpios property from devices instatiated directly from the device tree so we can further restrict the number of GPIOs down from the number of bits on the target register. Signed-off-by: Linus Walleij --- drivers/gpio/gpio-mmio.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpio/gpio-mmio.c b/drivers/gpio/gpio-mmio.c index d89e78f0ead3..9e944c191551 100644 --- a/drivers/gpio/gpio-mmio.c +++ b/drivers/gpio/gpio-mmio.c @@ -694,6 +694,7 @@ MODULE_DEVICE_TABLE(of, bgpio_of_match); static struct bgpio_pdata *bgpio_parse_fw(struct device *dev, unsigned long *flags) { struct bgpio_pdata *pdata; + u32 ngpios; if (!dev_fwnode(dev)) return NULL; @@ -704,6 +705,9 @@ static struct bgpio_pdata *bgpio_parse_fw(struct device *dev, unsigned long *fla pdata->base = -1; + if (!device_property_read_u32(dev, "ngpios", &ngpios)) + pdata->ngpios = ngpios; + if (device_is_big_endian(dev)) *flags |= BGPIOF_BIG_ENDIAN_BYTE_ORDER;