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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/brcm,bcm21664-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom BCM21664 pin controller
maintainers:
- Florian Fainelli <florian.fainelli@broadcom.com>
- Ray Jui <rjui@broadcom.com>
- Scott Branden <sbranden@broadcom.com>
allOf:
- $ref: pinctrl.yaml#
properties:
compatible:
const: brcm,bcm21664-pinctrl
reg:
maxItems: 1
patternProperties:
'-pins$':
type: object
additionalProperties: false
patternProperties:
'-grp[0-9]$':
type: object
properties:
pins:
description:
Specifies the name(s) of one or more pins to be configured by
this node.
items:
enum: [ adcsyn, batrm, bsc1clk, bsc1dat, camcs0, camcs1, clk32k,
clk_cx8, dclk1, dclk4, dclkreq1, dclkreq4, dmic0clk,
dmic0dq, dsi0te, gpio00, gpio01, gpio02, gpio03, gpio04,
gpio05, gpio06, gpio07, gpio08, gpio09, gpio10, gpio11,
gpio12, gpio13, gpio14, gpio15, gpio16, gpio17, gpio18,
gpio19, gpio20, gpio21, gpio22, gpio23, gpio24, gpio25,
gpio26, gpio27, gpio28, gpio32, gpio33, gpio34, gpio93,
gpio94, gps_calreq, gps_hostreq, gps_pablank, gps_tmark,
icusbdm, icusbdp, lcdcs0, lcdres, lcdscl, lcdsda, lcdte,
mdmgpio00, mdmgpio01, mdmgpio02, mdmgpio03, mdmgpio04,
mdmgpio05, mdmgpio06, mdmgpio07, mdmgpio08, mmc0ck,
mmc0cmd, mmc0dat0, mmc0dat1, mmc0dat2, mmc0dat3, mmc0dat4,
mmc0dat5, mmc0dat6, mmc0dat7, mmc0rst, mmc1ck, mmc1cmd,
mmc1dat0, mmc1dat1, mmc1dat2, mmc1dat3, mmc1dat4,
mmc1dat5, mmc1dat6, mmc1dat7, mmc1rst, pc1, pc2, pmbscclk,
pmbscdat, pmuint, resetn, rfst2g_mtsloten3g,
rtxdata2g_txdata3g1, rtxen2g_txdata3g2, rxdata3g0,
rxdata3g1, rxdata3g2, sdck, sdcmd, sddat0, sddat1, sddat2,
sddat3, simclk, simdat, simdet, simrst, spi0clk, spi0fss,
spi0rxd, spi0txd, sri_c, sri_d, sri_e, sspck, sspdi,
sspdo, sspsyn, stat1, stat2, swclktck, swdiotms, sysclken,
tdi, tdo, testmode, traceclk, tracedt00, tracedt01,
tracedt02, tracedt03, tracedt04, tracedt05, tracedt06,
tracedt07, tracedt08, tracedt09, tracedt10, tracedt11,
tracedt12, tracedt13, tracedt14, tracedt15, trstb,
txdata3g0, ubctsn, ubrtsn, ubrx, ubtx ]
function:
description:
Specifies the pin mux selection.
enum: [ alt1, alt2, alt3, alt4, alt5, alt6 ]
bias-disable: true
bias-pull-up:
type: boolean
bias-pull-down:
type: boolean
slew-rate:
description: |
Meaning depends on configured pin mux:
bsc*clk/pmbscclk or bsc*dat/pmbscdat or gpio16/gpio17:
0: Standard (100 kbps) & Fast (400 kbps) mode
1: Highspeed (3.4 Mbps) mode
Otherwise:
0: fast slew rate
1: normal slew rate
drive-strength:
enum: [ 2, 4, 6, 8, 10, 12, 14, 16 ]
input-enable: true
input-disable: true
input-schmitt-enable: true
input-schmitt-disable: true
required:
- pins
additionalProperties: false
allOf:
- $ref: pincfg-node.yaml#
# Limitations for I2C pins
- if:
properties:
pins:
contains:
enum: [ bsc1clk, bsc1dat, gpio16, gpio17, pmbscclk,
pmbscdat ]
then:
properties:
drive-strength: false
bias-pull-down: false
input-schmitt-enable: false
input-schmitt-disable: false
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
pinctrl@35004800 {
compatible = "brcm,bcm21664-pinctrl";
reg = <0x35004800 0x7f0>;
dev-a-active-pins {
/* group node defining 1 standard pin */
std-grp0 {
pins = "gpio00";
function = "alt1";
input-schmitt-enable;
bias-disable;
slew-rate = <1>;
drive-strength = <4>;
};
/* group node defining 2 I2C pins */
i2c-grp0 {
pins = "bsc1clk", "bsc1dat";
function = "alt2";
bias-pull-up;
input-enable;
};
};
};
...
|
