From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Gonzalez Subject: [PATCH] Input: goodix - decouple irq and reset lines Date: Fri, 4 Jan 2019 17:00:47 +0100 Message-ID: <1546617648-23445-1-git-send-email-alex.gonzalez@digi.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: hadess@hadess.net Cc: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, alex.gonzalez@digi.com List-Id: linux-input@vger.kernel.org The current implementation on the Goodix driver requires the two optional GPIOs (RESET and INT) to be provided. However, it is possible to designs the RESET line pulled-up and only provide the INT line. Such designs do not work with the current implementation. The patch attached allows for designs that only provide the INT line to have a functional touch on the default I2C address, even though some functionality like the sleep mode will not be available. This has been tested on v4.20 with a gt911 based touch panel design that only provides the INT line. Alex Gonzalez (1): Input: goodix - decouple irq and reset lines drivers/input/touchscreen/goodix.c | 59 ++++++++++++++++++++------------------ 1 file changed, 31 insertions(+), 28 deletions(-)