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The first thing the Cypress driver does when starting up is to try a soft reset. This is the first point where the driver SPI/I2C communication can fail, so put out some nice debug text: cyttsp-spi spi2.0: failed to send soft reset Instead of just: cyttsp-spi: probe of spi2.0 failed with error -5 This is more helpful. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210322221349.1116666-1-linus.walleij@linaro.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>