From patchwork Tue Feb 20 13:39:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 774385 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5DE384C60; Tue, 20 Feb 2024 13:39:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.200 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708436399; cv=none; b=sT6n54azLk5rQuURgA8PyR1VIW8iRE//RDEMoIAEfV55s4I/Vlsfs3zouF/2gS+kx9Ia3+3lGpBnRYvKAzjSK+SRBUhxnUb6R1YLpwjMmr4u/Falqj2uIo2nG1bxlAAe3QsZB5V4ltTKyHqlR4hlnUurIVcSAem22FJgWhjj8Yo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708436399; c=relaxed/simple; bh=maUOB1I/kGF7pxO+VAjAEbO4lZcaywIU34qr1xonNlU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=l0IMDBQv6nIZbI1FIpsSp2FQyVf80i4yQHkfMroHCz3lAmrfin4viRvoxSuiPTuJ/P7e+boJQf9r7NlNy+UUP+QQHrO0TjFh59AqIOEybXjEVEjRDiTQwvBhzwpCi99oMvrKvkBxfk6S0un534QnX0S1wHrsNbiluwmj7j2EEdM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=D0wVH8Zx; arc=none smtp.client-ip=217.70.183.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="D0wVH8Zx" Received: by mail.gandi.net (Postfix) with ESMTPA id D42FF20004; Tue, 20 Feb 2024 13:39:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1708436395; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=JR5bxG1GSyiF5ERk11qYZtMLEqsuYC3EasEln4G35iQ=; b=D0wVH8ZxwoErTe+VqwqvA29q5zZjYHP66v8cKgfbdKh70MIQBuqFMtf1xTc9Bcyf9i+wT5 vFvkzyHA8FdGvsppHWxBjlVYwDEFbOvEV/Ew3H68t4aVwwVbECf0uGX/c1RrMkGId8aL3U YNkEkee0IPomt0KwmWaPdTPign4o/Ds85GxDvmAW88LTWiWY8Ye1UJHyR2GEsJ+S034PjA +1dIqXA5f3yKos+E54FvA5r/DSe9XV3msVL2TiqAqFNfK8K3KAm9eH1bmHjZAN/3uq0b7u ZcQCZ0FPn9DermON9GYt9tW+fjnKm0G1bkoTrzUPc6w4UnNdNvyW8wWK0RuHIA== From: Herve Codina To: Linus Walleij , Bartosz Golaszewski , Pavel Machek , Lee Jones Cc: Saravana Kannan , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, Luca Ceresoli , Thomas Petazzoni , Herve Codina Subject: [PATCH RESEND 0/2] leds: gpio: Add devlink between the leds-gpio device and the gpio used. Date: Tue, 20 Feb 2024 14:39:47 +0100 Message-ID: <20240220133950.138452-1-herve.codina@bootlin.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: herve.codina@bootlin.com Hi, Note: Resent this series with Saravana added in Cc. When a gpio used by the leds-gpio device is removed, the leds-gpio device continues to use this gpio. Also, when the gpio is back, the leds-gpio still uses the old removed gpio. A consumer/supplier relationship is missing between the leds-gpio device (consumer) and the gpio used (supplier). This series adds an addionnal devlink between this two device. With this link when the gpio is removed, the leds-gpio device is also removed. Best regards, Hervé Codina Herve Codina (2): gpiolib: Introduce gpiod_device_add_link() leds: gpio: Add devlinks between the gpio consumed and the gpio leds device drivers/gpio/gpiolib.c | 32 ++++++++++++++++++++++++++++++++ drivers/leds/leds-gpio.c | 15 +++++++++++++++ include/linux/gpio/consumer.h | 5 +++++ 3 files changed, 52 insertions(+)