Loading Documentation/devicetree/bindings/gpio/gpio-pca953x.txt +1 −0 Original line number Diff line number Diff line Loading @@ -19,6 +19,7 @@ Required properties: nxp,pca9698 nxp,pcal6416 nxp,pcal6524 nxp,pcal9535 nxp,pcal9555a maxim,max7310 maxim,max7312 Loading Documentation/devicetree/bindings/gpio/gpio-zynq.txt +3 −1 Original line number Diff line number Diff line Loading @@ -6,7 +6,9 @@ Required properties: - First cell is the GPIO line number - Second cell is used to specify optional parameters (unused) - compatible : Should be "xlnx,zynq-gpio-1.0" or "xlnx,zynqmp-gpio-1.0" - compatible : Should be "xlnx,zynq-gpio-1.0" or "xlnx,zynqmp-gpio-1.0" or "xlnx,versal-gpio-1.0 or "xlnx,pmc-gpio-1.0 - clocks : Clock specifier (see clock bindings for details) - gpio-controller : Marks the device node as a GPIO controller. - interrupts : Interrupt specifier (see interrupt bindings for Loading Documentation/driver-api/gpio/drivers-on-gpio.rst +7 −0 Original line number Diff line number Diff line Loading @@ -89,6 +89,13 @@ hardware descriptions such as device tree or ACPI: Consumer Electronics Control bus using only GPIO. It is used to communicate with devices on the HDMI bus. - gpio-charger: drivers/power/supply/gpio-charger.c is used if you need to do battery charging and all you have to go by to check the presence of the AC charger or more complex tasks such as indicating charging status using nothing but GPIO lines, this driver provides that and also a clearly defined way to pass the charging parameters from hardware descriptions such as the device tree. Apart from this there are special GPIO drivers in subsystems like MMC/SD to read card detect and write protect GPIO lines, and in the TTY serial subsystem to emulate MCTRL (modem control) signals CTS/RTS by using two GPIO lines. The Loading arch/arm/plat-orion/gpio.c +2 −6 Original line number Diff line number Diff line Loading @@ -442,6 +442,7 @@ static void orion_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) struct orion_gpio_chip *ochip = gpiochip_get_data(chip); u32 out, io_conf, blink, in_pol, data_in, cause, edg_msk, lvl_msk; const char *label; int i; out = readl_relaxed(GPIO_OUT(ochip)); Loading @@ -453,15 +454,10 @@ static void orion_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) edg_msk = readl_relaxed(GPIO_EDGE_MASK(ochip)); lvl_msk = readl_relaxed(GPIO_LEVEL_MASK(ochip)); for (i = 0; i < chip->ngpio; i++) { const char *label; for_each_requested_gpio(chip, i, label) { u32 msk; bool is_out; label = gpiochip_is_requested(chip, i); if (!label) continue; msk = 1 << i; is_out = !(io_conf & msk); Loading drivers/gpio/Kconfig +2 −2 Original line number Diff line number Diff line Loading @@ -410,7 +410,7 @@ config GPIO_MXS config GPIO_OCTEON tristate "Cavium OCTEON GPIO" depends on GPIOLIB && CAVIUM_OCTEON_SOC depends on CAVIUM_OCTEON_SOC default y help Say yes here to support the on-chip GPIO lines on the OCTEON Loading Loading @@ -1117,7 +1117,7 @@ config GPIO_DLN2 config HTC_EGPIO bool "HTC EGPIO support" depends on GPIOLIB && ARM depends on ARM help This driver supports the CPLD egpio chip present on several HTC phones. It provides basic support for input Loading Loading
Documentation/devicetree/bindings/gpio/gpio-pca953x.txt +1 −0 Original line number Diff line number Diff line Loading @@ -19,6 +19,7 @@ Required properties: nxp,pca9698 nxp,pcal6416 nxp,pcal6524 nxp,pcal9535 nxp,pcal9555a maxim,max7310 maxim,max7312 Loading
Documentation/devicetree/bindings/gpio/gpio-zynq.txt +3 −1 Original line number Diff line number Diff line Loading @@ -6,7 +6,9 @@ Required properties: - First cell is the GPIO line number - Second cell is used to specify optional parameters (unused) - compatible : Should be "xlnx,zynq-gpio-1.0" or "xlnx,zynqmp-gpio-1.0" - compatible : Should be "xlnx,zynq-gpio-1.0" or "xlnx,zynqmp-gpio-1.0" or "xlnx,versal-gpio-1.0 or "xlnx,pmc-gpio-1.0 - clocks : Clock specifier (see clock bindings for details) - gpio-controller : Marks the device node as a GPIO controller. - interrupts : Interrupt specifier (see interrupt bindings for Loading
Documentation/driver-api/gpio/drivers-on-gpio.rst +7 −0 Original line number Diff line number Diff line Loading @@ -89,6 +89,13 @@ hardware descriptions such as device tree or ACPI: Consumer Electronics Control bus using only GPIO. It is used to communicate with devices on the HDMI bus. - gpio-charger: drivers/power/supply/gpio-charger.c is used if you need to do battery charging and all you have to go by to check the presence of the AC charger or more complex tasks such as indicating charging status using nothing but GPIO lines, this driver provides that and also a clearly defined way to pass the charging parameters from hardware descriptions such as the device tree. Apart from this there are special GPIO drivers in subsystems like MMC/SD to read card detect and write protect GPIO lines, and in the TTY serial subsystem to emulate MCTRL (modem control) signals CTS/RTS by using two GPIO lines. The Loading
arch/arm/plat-orion/gpio.c +2 −6 Original line number Diff line number Diff line Loading @@ -442,6 +442,7 @@ static void orion_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) struct orion_gpio_chip *ochip = gpiochip_get_data(chip); u32 out, io_conf, blink, in_pol, data_in, cause, edg_msk, lvl_msk; const char *label; int i; out = readl_relaxed(GPIO_OUT(ochip)); Loading @@ -453,15 +454,10 @@ static void orion_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) edg_msk = readl_relaxed(GPIO_EDGE_MASK(ochip)); lvl_msk = readl_relaxed(GPIO_LEVEL_MASK(ochip)); for (i = 0; i < chip->ngpio; i++) { const char *label; for_each_requested_gpio(chip, i, label) { u32 msk; bool is_out; label = gpiochip_is_requested(chip, i); if (!label) continue; msk = 1 << i; is_out = !(io_conf & msk); Loading
drivers/gpio/Kconfig +2 −2 Original line number Diff line number Diff line Loading @@ -410,7 +410,7 @@ config GPIO_MXS config GPIO_OCTEON tristate "Cavium OCTEON GPIO" depends on GPIOLIB && CAVIUM_OCTEON_SOC depends on CAVIUM_OCTEON_SOC default y help Say yes here to support the on-chip GPIO lines on the OCTEON Loading Loading @@ -1117,7 +1117,7 @@ config GPIO_DLN2 config HTC_EGPIO bool "HTC EGPIO support" depends on GPIOLIB && ARM depends on ARM help This driver supports the CPLD egpio chip present on several HTC phones. It provides basic support for input Loading
