diff options
91 files changed, 11047 insertions, 3000 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt index 3c821cda1ad0..b321b26780dc 100644 --- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt @@ -17,6 +17,7 @@ Required properties: "allwinner,sun8i-a23-pinctrl" "allwinner,sun8i-a23-r-pinctrl" "allwinner,sun8i-a33-pinctrl" + "allwinner,sun8i-a83t-pinctrl" - reg: Should contain the register physical address and length for the pin controller. diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pio4-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pio4-pinctrl.txt new file mode 100644 index 000000000000..61ac75706cc9 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pio4-pinctrl.txt @@ -0,0 +1,90 @@ +* Atmel PIO4 Controller + +The Atmel PIO4 controller is used to select the function of a pin and to +configure it. + +Required properties: +- compatible: "atmel,sama5d2-pinctrl". +- reg: base address and length of the PIO controller. +- interrupts: interrupt outputs from the controller, one for each bank. +- interrupt-controller: mark the device node as an interrupt controller. +- #interrupt-cells: should be two. +- gpio-controller: mark the device node as a gpio controller. +- #gpio-cells: should be two. + +Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for +a general description of GPIO and interrupt bindings. + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices. + +Subnode format +Each node (or subnode) will list the pins it needs and how to configured these +pins. + + node { + pinmux = <PIN_NUMBER_PINMUX>; + GENERIC_PINCONFIG; + }; + +Required properties: +- pinmux: integer array. Each integer represents a pin number plus mux and +ioset settings. Use the macros from boot/dts/<soc>-pinfunc.h file to get the +right representation of the pin. + +Optional properties: +- GENERIC_PINCONFIG: generic pinconfig options to use, bias-disable, +bias-pull-down, bias-pull-up, drive-open-drain, input-schmitt-enable, +input-debounce, output-low, output-high. + +Example: + +#include <sama5d2-pinfunc.h> + +... +{ + pioA: pinctrl@fc038000 { + compatible = "atmel,sama5d2-pinctrl"; + reg = <0xfc038000 0x600>; + interrupts = <18 IRQ_TYPE_LEVEL_HIGH 7>, + <68 IRQ_TYPE_LEVEL_HIGH 7>, + <69 IRQ_TYPE_LEVEL_HIGH 7>, + <70 IRQ_TYPE_LEVEL_HIGH 7>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-controller; + #gpio-cells = <2>; + clocks = <&pioA_clk>; + + pinctrl_i2c0_default: i2c0_default { + pinmux = <PIN_PD21__TWD0>, + <PIN_PD22__TWCK0>; + bias-disable; + }; + + pinctrl_led_gpio_default: led_gpio_default { + pinmux = <PIN_PB0>, + <PIN_PB5>; + bias-pull-up; + }; + + pinctrl_sdmmc1_default: sdmmc1_default { + cmd_data { + pinmux = <PIN_PA28__SDMMC1_CMD>, + <PIN_PA18__SDMMC1_DAT0>, + <PIN_PA19__SDMMC1_DAT1>, + <PIN_PA20__SDMMC1_DAT2>, + <PIN_PA21__SDMMC1_DAT3>; + bias-pull-up; + }; + + ck_cd { + pinmux = <PIN_PA22__SDMMC1_CK>, + <PIN_PA30__SDMMC1_CD>; + bias-disable; + }; + }; + ... + }; +}; +... diff --git a/Documentation/devicetree/bindings/pinctrl/berlin,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/berlin,pinctrl.txt index a8bb5e26019c..f8fa28ce163e 100644 --- a/Documentation/devicetree/bindings/pinctrl/berlin,pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/berlin,pinctrl.txt @@ -20,7 +20,10 @@ Required properties: "marvell,berlin2cd-soc-pinctrl", "marvell,berlin2cd-system-pinctrl", "marvell,berlin2q-soc-pinctrl", - "marvell,berlin2q-system-pinctrl" + "marvell,berlin2q-system-pinctrl", + "marvell,berlin4ct-avio-pinctrl", + "marvell,berlin4ct-soc-pinctrl", + "marvell,berlin4ct-system-pinctrl" Required subnode-properties: - groups: a list of strings describing the group names. diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt index 6540ca56be5e..16589fb6f420 100644 --- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt +++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt @@ -3,8 +3,8 @@ Broadcom Cygnus GPIO/PINCONF Controller Required properties: - compatible: - Must be "brcm,cygnus-ccm-gpio", "brcm,cygnus-asiu-gpio", or - "brcm,cygnus-crmu-gpio" + Must be "brcm,cygnus-ccm-gpio", "brcm,cygnus-asiu-gpio", + "brcm,cygnus-crmu-gpio" or "brcm,iproc-gpio" - reg: Define the base and range of the I/O address space that contains the Cygnus @@ -26,9 +26,13 @@ Optional properties: - interrupt-controller: Specifies that the node is an interrupt controller -- pinmux: - Specifies the phandle to the IOMUX device, where pins can be individually -muxed to GPIO +- gpio-ranges: + Specifies the mapping between gpio controller and pin-controllers pins. + This requires 4 fields in cells defined as - + 1. Phandle of pin-controller. + 2. GPIO base pin offset. + 3 Pin-control base pin offset. + 4. number of gpio pins which are linearly mapped from pin base. Supported generic PINCONF properties in child nodes: @@ -78,6 +82,8 @@ Example: gpio-controller; interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>; interrupt-controller; + gpio-ranges = <&pinctrl 0 42 1>, + <&pinctrl 1 44 3>; }; /* diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt index 8bbf25d58656..457b2c68d47b 100644 --- a/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.txt @@ -1,16 +1,42 @@ * Freescale i.MX7 Dual IOMUX Controller +iMX7D supports two iomuxc controllers, fsl,imx7d-iomuxc controller is similar +as previous iMX SoC generation and fsl,imx7d-iomuxc-lpsr which provides low +power state retention capabilities on gpios that are part of iomuxc-lpsr +(GPIO1_IO7..GPIO1_IO0). While iomuxc-lpsr provides its own set of registers for +mux and pad control settings, it shares the input select register from main +iomuxc controller for daisy chain settings, the fsl,input-sel property extends +fsl,imx-pinctrl driver to support iomuxc-lpsr controller. + +iomuxc_lpsr: iomuxc-lpsr@302c0000 { + compatible = "fsl,imx7d-iomuxc-lpsr"; + reg = <0x302c0000 0x10000>; + fsl,input-sel = <&iomuxc>; +}; + +iomuxc: iomuxc@30330000 { + compatible = "fsl,imx7d-iomuxc"; + reg = <0x30330000 0x10000>; +}; + +Pheriparials using pads from iomuxc-lpsr support low state retention power +state, under LPSR mode GPIO's state of pads are retain. + Please refer to fsl,imx-pinctrl.txt in this directory for common binding part and usage. Required properties: -- compatible: "fsl,imx7d-iomuxc" +- compatible: "fsl,imx7d-iomuxc" for main IOMUXC controller, or + "fsl,imx7d-iomuxc-lpsr" for Low Power State Retention IOMUXC controller. - fsl,pins: each entry consists of 6 integers and represents the mux and config setting for one pin. The first 5 integers <mux_reg conf_reg input_reg mux_val input_val> are specified using a PIN_FUNC_ID macro, which can be found in imx7d-pinfunc.h under device tree source folder. The last integer CONFIG is the pad setting value like pull-up on this pin. Please refer to i.MX7 Dual Reference Manual for detailed CONFIG settings. +- fsl,input-sel: required property for iomuxc-lpsr controller, this property is + a phandle for main iomuxc controller which shares the input select register for + daisy chain settings. CONFIG bits definition: PAD_CTL_PUS_100K_DOWN (0 << 5) @@ -25,3 +51,38 @@ PAD_CTL_DSE_X1 (0 << 0) PAD_CTL_DSE_X2 (1 << 0) PAD_CTL_DSE_X3 (2 << 0) PAD_CTL_DSE_X4 (3 << 0) + +Examples: +While iomuxc-lpsr is intended to be used by dedicated peripherals to take +advantages of LPSR power mode, is also possible that an IP to use pads from +any of the iomux controllers. For example the I2C1 IP can use SCL pad from +iomuxc-lpsr controller and SDA pad from iomuxc controller as: + +i2c1: i2c@30a20000 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1_1 &pinctrl_i2c1_2>; + status = "okay"; +}; + +iomuxc-lpsr@302c0000 { + compatible = "fsl,imx7d-iomuxc-lpsr"; + reg = <0x302c0000 0x10000>; + fsl,input-sel = <&iomuxc>; + + pinctrl_i2c1_1: i2c1grp-1 { + fsl,pins = < + MX7D_PAD_GPIO1_IO04__I2C1_SCL 0x4000007f + >; + }; +}; + +iomuxc@30330000 { + compatible = "fsl,imx7d-iomuxc"; + reg = <0x30330000 0x10000>; + + pinctrl_i2c1_2: i2c1grp-2 { + fsl,pins = < + MX7D_PAD_I2C1_SDA__I2C1_SDA 0x4000007f + >; + }; +}; diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt index 9496934528bd..ffadb7a371f6 100644 --- a/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt @@ -19,6 +19,7 @@ Required Properties: - "renesas,pfc-r8a7791": for R8A7791 (R-Car M2-W) compatible pin-controller. - "renesas,pfc-r8a7793": for R8A7793 (R-Car M2-N) compatible pin-controller. - "renesas,pfc-r8a7794": for R8A7794 (R-Car E2) compatible pin-controller. + - "renesas,pfc-r8a7795": for R8A7795 (R-Car H3) compatible pin-controller. - "renesas,pfc-sh73a0": for SH73A0 (SH-Mobile AG5) compatible pin-controller. - reg: Base address and length of each memory resource used by the pin diff --git a/MAINTAINERS b/MAINTAINERS index 747c65316167..c9c6052b9951 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8181,6 +8181,13 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained F: drivers/pinctrl/pinctrl-at91.* +PIN CONTROLLER - ATMEL AT91 PIO4 +M: Ludovic Desroches <ludovic.desroches@atmel.com> +L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) +L: linux-gpio@vger.kernel.org +S: Supported +F: drivers/pinctrl/pinctrl-at91-pio4.* + PIN CONTROLLER - INTEL M: Mika Westerberg <mika.westerberg@linux.intel.com> M: Heikki Krogerus <heikki.krogerus@linux.intel.com> diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index 034cd48ae28b..cc05cde0f9a4 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -921,6 +921,20 @@ clocks = <&twi1_clk>; status = "disabled"; }; + + pioA: pinctrl@fc038000 { + compatible = "atmel,sama5d2-pinctrl"; + reg = <0xfc038000 0x600>; + interrupts = <18 IRQ_TYPE_LEVEL_HIGH 7>, + <68 IRQ_TYPE_LEVEL_HIGH 7>, + <69 IRQ_TYPE_LEVEL_HIGH 7>, + <70 IRQ_TYPE_LEVEL_HIGH 7>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-controller; + #gpio-cells = <2>; + clocks = <&pioA_clk>; + }; }; }; }; diff --git a/drivers/base/dd.c b/drivers/base/dd.c index be0eb4639128..a641cf3ccad6 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -322,6 +322,8 @@ static int really_probe(struct device *dev, struct device_driver *drv) goto probe_failed; } + pinctrl_init_done(dev); + if (dev->pm_domain && dev->pm_domain->sync) dev->pm_domain->sync(dev); diff --git a/drivers/base/pinctrl.c b/drivers/base/pinctrl.c index 5fb74b43848e..076297592754 100644 --- a/drivers/base/pinctrl.c +++ b/drivers/base/pinctrl.c @@ -42,9 +42,20 @@ int pinctrl_bind_pins(struct device *dev) goto cleanup_get; } - ret = pinctrl_select_state(dev->pins->p, dev->pins->default_state); + dev->pins->init_state = pinctrl_lookup_state(dev->pins->p, + PINCTRL_STATE_INIT); + if (IS_ERR(dev->pins->init_state)) { + /* Not supplying this state is perfectly legal */ + dev_dbg(dev, "no init pinctrl state\n"); + + ret = pinctrl_select_state(dev->pins->p, + dev->pins->default_state); + } else { + ret = pinctrl_select_state(dev->pins->p, dev->pins->init_state); + } + if (ret) { - dev_dbg(dev, "failed to activate default pinctrl state\n"); + dev_dbg(dev, "failed to activate initial pinctrl state\n"); goto cleanup_get; |