From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8776F15E80E; Thu, 2 May 2024 16:48:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714668497; cv=none; b=Vooec+A7YwcW7qhinYTbKASHfMCc0X2dqp5sJmWNUWRRPVwCqr6BSa71bqkJQJmuGiF7JtfA2D1Uq95scWlc9AGsWuto23MgIO8oYQ/CYD8CwcGYdnGjrkX8bohPPqU+Xyex+q9CaRJhonAkDbSEGm2zaRJwfOGPhCNS/ok7prs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714668497; c=relaxed/simple; bh=wNDnU38OrwB2elGxkleTWMYW3InPgN3uSRSVCxbvH6s=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=j/QLrZVqXddZxMnVO0mrZWYG8qX3KZXwblkxtwi1z3E91osIUOuF60hitAOhSwPb5WqmlBNWrDYc/cpMfYzgbbZYByOdTPQuKJq5Z1chQ8ZkUvRpexETvV0+abKEbWAn9FXnRrfHmXlAzj4HpA/ISwsG2rUmhEL2O9Io6nUK21w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ir5mxJnj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ir5mxJnj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B002C113CC; Thu, 2 May 2024 16:48:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714668497; bh=wNDnU38OrwB2elGxkleTWMYW3InPgN3uSRSVCxbvH6s=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=Ir5mxJnjLXguyI7fGVg3eUd2HSK4jptyW4KlKHhXd+fWejI6L9F/kOodlKSwi5JOD gV5ELtHOv4EHZlWgv3CBS5OC54KSVu9WsKMGbUYxLAXcA4Adf1Z3Q5R96f/td4j7BO B2xG6/aobzeSrkZIBE3DwTTgUcNU5uQETJDH3qGA+hOvygOGHovvrFo1nz/AWhZU1T hl3Bx9cNW2eGX/50cN6Aq/gdkUuXaa2FNRmkwaWsKApdt7AH9CIChImRfVgPKOLPw6 vsWRbws3/+EOaOBfCKXXmauH6xT1JVC0O4VuXP5RBFaRIYdHyNITvi2gyt3TgWiWN0 v9uaTOfsPNhTw== From: Lee Jones To: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller , Dan Carpenter , Flavio Suligoi Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20240417153105.1794134-2-f.suligoi@asem.it> References: <20240417153105.1794134-1-f.suligoi@asem.it> <20240417153105.1794134-2-f.suligoi@asem.it> Subject: Re: (subset) [PATCH v1 1/1] backlight: mp3309c: fix leds flickering in pwm mode Message-Id: <171466849494.1206441.17324969195592920195.b4-ty@kernel.org> Date: Thu, 02 May 2024 17:48:14 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Mailer: b4 0.12.4 On Wed, 17 Apr 2024 17:31:05 +0200, Flavio Suligoi wrote: > The mp3309 has two configuration registers, named according to their > address (0x00 and 0x01). > In the second register (0x01), the bit DIMS (Dimming Mode Select) must > be always 0 (zero), in both analog (via i2c commands) and pwm dimming > mode. > > In the initial driver version, the DIMS bit was set in pwm mode and > reset in analog mode. > But if the DIMS bit is set in pwm dimming mode and other devices are > connected on the same i2c bus, every i2c commands on the bus generates a > flickering on the LEDs powered by the mp3309c. > > [...] Applied, thanks! [1/1] backlight: mp3309c: fix leds flickering in pwm mode commit: ce60cddc2abf61902dfca71d630624db95315124 -- Lee Jones [李琼斯]