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| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/brcm,bcm2712c0-pinctrl.yaml | 137 |
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diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2712c0-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2712c0-pinctrl.yaml new file mode 100644 index 000000000000..ae6c13a746b9 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2712c0-pinctrl.yaml @@ -0,0 +1,137 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/brcm,bcm2712c0-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom STB family pin controller + +maintainers: + - Ivan T. Ivanov <iivanov@suse.de> + - A. della Porta <andrea.porta@suse.com> + +description: > + Broadcom's STB family of memory-mapped pin controllers. + + This includes the pin controllers inside the BCM2712 SoC which + are instances of the STB family and has two silicon variants, + C0 and D0, which differs slightly in terms of registers layout. + + The -aon- (Always On) variant is the same IP block but differs + in the number of pins that are associated and the pinmux functions + for each of those pins. + +allOf: + - $ref: pinctrl.yaml# + +properties: + compatible: + enum: + - brcm,bcm2712c0-pinctrl + - brcm,bcm2712c0-aon-pinctrl + - brcm,bcm2712d0-pinctrl + - brcm,bcm2712d0-aon-pinctrl + + reg: + maxItems: 1 + +patternProperties: + '-state$': + oneOf: + - $ref: '#/$defs/brcmstb-pinctrl-state' + - patternProperties: + '-pins$': + $ref: '#/$defs/brcmstb-pinctrl-state' + additionalProperties: false + +$defs: + brcmstb-pinctrl-state: + allOf: + - $ref: pincfg-node.yaml# + - $ref: pinmux-node.yaml# + + description: > + Pin controller client devices use pin configuration subnodes (children + and grandchildren) for desired pin configuration. + + Client device subnodes use below standard properties. + + properties: + pins: + description: + List of gpio pins affected by the properties specified in this + subnode (either this or "groups" must be specified). + items: + pattern: '^((aon_)?s?gpio[0-6]?[0-9])|(emmc_(clk|cmd|dat[0-7]|ds))$' + + function: + description: + Specify the alternative function to be configured for the specified + pins. + enum: [ gpio, alt1, alt2, alt3, alt4, alt5, alt6, alt7, alt8, + aon_cpu_standbyb, aon_fp_4sec_resetb, aon_gpclk, aon_pwm, + arm_jtag, aud_fs_clk0, avs_pmu_bsc, bsc_m0, bsc_m1, bsc_m2, + bsc_m3, clk_observe, ctl_hdmi_5v, enet0, enet0_mii, enet0_rgmii, + ext_sc_clk, fl0, fl1, gpclk0, gpclk1, gpclk2, hdmi_tx0_auto_i2c, + hdmi_tx0_bsc, hdmi_tx1_auto_i2c, hdmi_tx1_bsc, i2s_in, i2s_out, + ir_in, mtsif, mtsif_alt, mtsif_alt1, pdm, pkt, pm_led_out, sc0, + sd0, sd2, sd_card_a, sd_card_b, sd_card_c, sd_card_d, sd_card_e, + sd_card_f, sd_card_g, spdif_out, spi_m, spi_s, sr_edm_sense, te0, + te1, tsio, uart0, uart1, uart2, usb_pwr, usb_vbus, uui, vc_i2c0, + vc_i2c3, vc_i2c4, vc_i2c5, vc_i2csl, vc_pcm, vc_pwm0, vc_pwm1, + vc_spi0, vc_spi3, vc_spi4, vc_spi5, vc_uart0, vc_uart2, vc_uart3, + vc_uart4 ] + + bias-disable: true + bias-pull-down: true + bias-pull-up: true + + required: + - pins + + if: + properties: + pins: + not: + contains: + pattern: "^emmc_(clk|cmd|dat[0-7]|ds)$" + then: + required: + - function + else: + properties: + function: false + + additionalProperties: false + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + pinctrl@7d504100 { + compatible = "brcm,bcm2712c0-pinctrl"; + reg = <0x7d504100 0x30>; + + bt-shutdown-default-state { + function = "gpio"; + pins = "gpio29"; + }; + + uarta-default-state { + rts-tx-pins { + function = "uart0"; + pins = "gpio24", "gpio26"; + bias-disable; + }; + + cts-rx-pins { + function = "uart0"; + pins = "gpio25", "gpio27"; + bias-pull-up; + }; + }; + }; |