From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH] arm64: dts: rockchip: add fan on Sapphire board Date: Tue, 30 Oct 2018 15:08:02 +0100 Message-ID: <1769372.HH4RfzZdQ7@phil> References: <20180930155033.31105-1-vicencb@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180930155033.31105-1-vicencb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+glpar-linux-rockchip=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Vicente Bergas Cc: linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-rockchip.vger.kernel.org Am Sonntag, 30. September 2018, 17:50:33 CET schrieb Vicente Bergas: > The Sapphire board has a 12V fan. So, adding it to the DTS. > There is no power supply directly connected, it needs the baseboard to > work. > If the board is used standalone then a hardware modification is needed. > On the Sapphire board there is an unpopulated resistor to connect it to > VBUS_TYPEC, which is usually 5V (too low) and can range up to 20V > (too high). > I tested it for a week connected to VCC_SYS which is 8.4V and proved to > be more than enough for the required cooling needs. This is the > connection described in the comment. > > Signed-off-by: Vicente Bergas applied for 4.21 (or whatever it will get called) Thanks Heiko