This is marked as RFC because it breaks DT compatibility and also the GoogleĬoachZ device is the only one with an active low polarity for the reset GPIO To fix this inconsistency, the polarity is inverted to not confuse the user Incorrect since the reset is active low in hardware. The Device Tree node setting the reset line polarity to active high, which is ![]() To reflect the physical state of the line. The driver is "asserting" this reset GPIO by setting its output to 0, probably Hours yesterday, trying to figure out why the touchscreen wouldn't work. Incorrectly asserted, the address will be wrongly configured. It happens toĪlso be used to configure its i2c address at runtime. The Goodix touchscreen controller has a reset line active low. Linux-sunxi, linux-arm-msm, linux-rockchip, Quentin Schulz Linux-imx, wens, jernej.skrabec, samuel, agross, andersson,Ĭc: linux-input, linux-kernel, devicetree, linux-arm-kernel, Krzysztof.kozlowski+dt, shawnguo, s.hauer, kernel, festevam, To: hadess, hdegoede, dmitry.torokhov, robh+dt, ![]() Fix reset line polarity for Goodix touchscreen controllers archive mirror help / color / mirror / Atom feed * fix reset line polarity for Goodix touchscreen controllers 14:43 Quentin SchulzĠ siblings, 2 replies 6+ messages in threadįrom: Quentin Schulz 14:43 UTC ( / raw)
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