This patchset adds the GPIO lines names to describe the /real/ GPIO usage on the Odroid-C2 board. These names are useful to have a clear and human readable decription of the line usage. The second patch is not specifically tied to the names but was found using these descriptions since they did not match. Here is an extract of the GPIO debugfs output : # cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-13, parent: platform/c8100000.aobus:pinctrl@14, aobus-banks: gpio-0 (UART_TX_AO_A ) gpio-1 (UART_RX_AO_A ) gpio-2 (VCCK En ) gpio-3 (TF 3V3/1V8 En |? ) out lo gpio-4 (USB HUB nRESET ) gpio-5 (USB OTG Power En |USB_OTG_PWR ) out lo gpio-6 (J7 Header Pin2 ) gpio-7 (IR In ) gpio-8 (J7 Header Pin4 ) gpio-9 (J7 Header Pin6 ) gpio-10 (J7 Header Pin5 ) gpio-11 (J7 Header Pin7 ) gpio-12 (HDMI CEC ) gpio-13 (SYS LED |c2:blue:alive ) out hi gpiochip1: GPIOs 14-132, parent: platform/c8834000.periphs:pinctrl@4b0, periphs-banks: gpio-14 (Eth MDIO ) gpio-15 (Eth MDC ) gpio-16 (Eth RGMII RX Clk ) gpio-17 (Eth RX DV ) gpio-18 (Eth RX D0 ) gpio-19 (Eth RX D1 ) gpio-20 (Eth RX D2 ) gpio-21 (Eth RX D3 ) gpio-22 (Eth RGMII TX Clk ) [...] gpio-115 (J2 Header Pin15 ) gpio-116 (J2 Header Pin12 ) gpio-117 (J2 Header Pin13 ) gpio-118 (J2 Header Pin8 ) gpio-119 (J2 Header Pin10 ) gpio-120 ( ) gpio-121 ( ) gpio-122 ( ) gpio-123 ( ) gpio-124 ( ) gpio-125 (J2 Header Pin11 ) gpio-126 ( ) gpio-127 (J2 Header Pin7 ) gpio-128 ( ) gpio-129 ( ) gpio-130 ( ) gpio-131 ( ) gpio-132 ( ) And the 'lsgpio' tool using the new char interface for GPIO handling : # lsgpio GPIO chip: gpiochip1, "periphs-banks", 119 GPIO lines line 0: "Eth MDIO" unused line 1: "Eth MDC" unused line 2: "Eth RGMII RX Clk" unused line 3: "Eth RX DV" unused line 4: "Eth RX D0" unused line 5: "Eth RX D1" unused line 6: "Eth RX D2" unused line 7: "Eth RX D3" unused line 8: "Eth RGMII TX Clk" unused line 9: "Eth TX En" unused line 10: "Eth TX D0" unused line 11: "Eth TX D1" unused line 12: "Eth TX D2" unused line 13: "Eth TX D3" unused line 14: "Eth PHY nRESET" unused line 15: "Eth PHY Intc" unused line 16: "HDMI HPD" unused line 17: "HDMI DDC SDA" unused line 18: "HDMI DDC SCL" unused line 19: unnamed unused line 20: "eMMC D0" unused line 21: "eMMC D1" unused line 22: "eMMC D2" unused line 23: "eMMC D3" unused line 24: "eMMC D4" unused [...] line 115: unnamed unused line 116: unnamed unused line 117: unnamed unused line 118: unnamed unused GPIO chip: gpiochip0, "aobus-banks", 14 GPIO lines line 0: "UART_TX_AO_A" unused line 1: "UART_RX_AO_A" unused line 2: "VCCK En" unused line 3: "TF 3V3/1V8 En" "?" [kernel output] line 4: "USB HUB nRESET" unused line 5: "USB OTG Power En" "USB_OTG_PWR" [kernel output] line 6: "J7 Header Pin2" unused line 7: "IR In" unused line 8: "J7 Header Pin4" unused line 9: "J7 Header Pin6" unused line 10: "J7 Header Pin5" unused line 11: "J7 Header Pin7" unused line 12: "HDMI CEC" unused line 13: "SYS LED" "c2:blue:alive" [kernel output active-low] Neil Armstrong (2): ARM64: dts: meson-gxbb-odroidc2: Add GPIO lines names ARM64: dts: meson-gxbb-odroidc2: Fix TFLASH VDD regulator GPIO line .../arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 53 +++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) -- 1.9.1 -- 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
