From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philipp Zabel Date: Fri, 16 Oct 2015 09:36:59 +0000 Subject: Re: [PATCH v2] pwm-backlight: fix the panel power sequence Message-Id: <1444988219.3541.3.camel@pengutronix.de> List-Id: References: <1444987060-48202-1-git-send-email-yh.huang@mediatek.com> In-Reply-To: <1444987060-48202-1-git-send-email-yh.huang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Am Freitag, den 16.10.2015, 17:17 +0800 schrieb YH Huang: > In order to match the panel power sequence, disable the enable_gpio > in the probe function. Also, reorder the code in the power_on and > power_off function to match the timing. Could you also have a look at the "pwm-backlight: Avoid backlight flicker when probed from DT" patch? I think in case of a panel left enabled by the bootloader, your patch will disable the backlight for a short time. best regards Philipp