In commit 5c5fb40de8f14 "PCI: imx6: Add support for active-low reset GPIO" I've made GPIO reset polarity aware, which made the PCIe working on Apalis SoM (reset active-high), but it has broken PCIe on several other i.MX6 boards (reset active-low) due to wrong logic level. It has made the default reset logic active-high, but it was active-low since beginning due to the bug in the reset code: gpio_set_value_cansleep(imx6_pcie->reset_gpio, 0); msleep(100); gpio_set_value_cansleep(imx6_pcie->reset_gpio, 1); This breakage couldn't be fixed correctly by fixing the reset code snippet mentioned above and fixing the broken DTBs, as we can't touch the DTBs, so the 5c5fb40de8f14 commit is going to be reverted, making PCIe reset broken on Apalis modules again. As suggested by Fabio, to fix this situation in backward compatible manner, we should introduce new boolean DT property reset-gpio-active-high, which would set PCIe reset GPIO polarity as needed. This patch series tries to do so. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
