Header adds defines for the gpio number of each pin from the driver view. The gpio block seems to support 128 lines but what line is mapped to a physical pin depends on the chip. The driver itself uses the index of a pin's offset in an array of the possible offsets for a chip as the gpio number.
The defines remove the need to work out that index to consume a pin in the device tree. Signed-off-by: Daniel Palmer <[email protected]> --- MAINTAINERS | 1 + include/dt-bindings/gpio/msc313-gpio.h | 95 ++++++++++++++++++++++++++ 2 files changed, 96 insertions(+) create mode 100644 include/dt-bindings/gpio/msc313-gpio.h diff --git a/MAINTAINERS b/MAINTAINERS index 3f345f36c22c..a188fae8c04e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2132,6 +2132,7 @@ W: http://linux-chenxing.org/ F: Documentation/devicetree/bindings/arm/mstar/* F: arch/arm/boot/dts/mstar-* F: arch/arm/mach-mstar/ +F: include/dt-bindings/gpio/msc313-gpio.h ARM/NEC MOBILEPRO 900/c MACHINE SUPPORT M: Michael Petchkovsky <[email protected]> diff --git a/include/dt-bindings/gpio/msc313-gpio.h b/include/dt-bindings/gpio/msc313-gpio.h new file mode 100644 index 000000000000..9b8cd6ffb7c4 --- /dev/null +++ b/include/dt-bindings/gpio/msc313-gpio.h @@ -0,0 +1,95 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */ +/* + * GPIO definitions for MStar/SigmaStar MSC313 and later SoCs + * + * Copyright (C) 2020 Daniel Palmer <[email protected]> + */ + +#ifndef _DT_BINDINGS_MSC313_GPIO_H +#define _DT_BINDINGS_MSC313_GPIO_H + +/* pin names for fuart, same for all SoCs so far */ +#define MSC313_PINNAME_FUART_RX "fuart_rx" +#define MSC313_PINNAME_FUART_TX "fuart_tx" +#define MSC313_PINNAME_FUART_CTS "fuart_cts" +#define MSC313_PINNAME_FUART_RTS "fuart_rts" + +/* pin names for sr, mercury5 is different */ +#define MSC313_PINNAME_SR_IO2 "sr_io2" +#define MSC313_PINNAME_SR_IO3 "sr_io3" +#define MSC313_PINNAME_SR_IO4 "sr_io4" +#define MSC313_PINNAME_SR_IO5 "sr_io5" +#define MSC313_PINNAME_SR_IO6 "sr_io6" +#define MSC313_PINNAME_SR_IO7 "sr_io7" +#define MSC313_PINNAME_SR_IO8 "sr_io8" +#define MSC313_PINNAME_SR_IO9 "sr_io9" +#define MSC313_PINNAME_SR_IO10 "sr_io10" +#define MSC313_PINNAME_SR_IO11 "sr_io11" +#define MSC313_PINNAME_SR_IO12 "sr_io12" +#define MSC313_PINNAME_SR_IO13 "sr_io13" +#define MSC313_PINNAME_SR_IO14 "sr_io14" +#define MSC313_PINNAME_SR_IO15 "sr_io15" +#define MSC313_PINNAME_SR_IO16 "sr_io16" +#define MSC313_PINNAME_SR_IO17 "sr_io17" + +/* pin names for sd, same for all SoCs so far */ +#define MSC313_PINNAME_SD_CLK "sd_clk" +#define MSC313_PINNAME_SD_CMD "sd_cmd" +#define MSC313_PINNAME_SD_D0 "sd_d0" +#define MSC313_PINNAME_SD_D1 "sd_d1" +#define MSC313_PINNAME_SD_D2 "sd_d2" +#define MSC313_PINNAME_SD_D3 "sd_d3" + +/* pin names for i2c1, same for all SoCs so for */ +#define MSC313_PINNAME_I2C1_SCL "i2c1_scl" +#define MSC313_PINNAME_I2C1_SCA "i2c1_sda" + +/* pin names for spi0, same for all SoCs so far */ +#define MSC313_PINNAME_SPI0_CZ "spi0_cz" +#define MSC313_PINNAME_SPI0_CK "spi0_ck" +#define MSC313_PINNAME_SPI0_DI "spi0_di" +#define MSC313_PINNAME_SPI0_DO "spi0_do" + +#define MSC313_GPIO_FUART 0 +#define MSC313_GPIO_FUART_RX (MSC313_GPIO_FUART + 0) +#define MSC313_GPIO_FUART_TX (MSC313_GPIO_FUART + 1) +#define MSC313_GPIO_FUART_CTS (MSC313_GPIO_FUART + 2) +#define MSC313_GPIO_FUART_RTS (MSC313_GPIO_FUART + 3) + +#define MSC313_GPIO_SR (MSC313_GPIO_FUART_RTS + 1) +#define MSC313_GPIO_SR_IO2 (MSC313_GPIO_SR + 0) +#define MSC313_GPIO_SR_IO3 (MSC313_GPIO_SR + 1) +#define MSC313_GPIO_SR_IO4 (MSC313_GPIO_SR + 2) +#define MSC313_GPIO_SR_IO5 (MSC313_GPIO_SR + 3) +#define MSC313_GPIO_SR_IO6 (MSC313_GPIO_SR + 4) +#define MSC313_GPIO_SR_IO7 (MSC313_GPIO_SR + 5) +#define MSC313_GPIO_SR_IO8 (MSC313_GPIO_SR + 6) +#define MSC313_GPIO_SR_IO9 (MSC313_GPIO_SR + 7) +#define MSC313_GPIO_SR_IO10 (MSC313_GPIO_SR + 8) +#define MSC313_GPIO_SR_IO11 (MSC313_GPIO_SR + 9) +#define MSC313_GPIO_SR_IO12 (MSC313_GPIO_SR + 10) +#define MSC313_GPIO_SR_IO13 (MSC313_GPIO_SR + 11) +#define MSC313_GPIO_SR_IO14 (MSC313_GPIO_SR + 12) +#define MSC313_GPIO_SR_IO15 (MSC313_GPIO_SR + 13) +#define MSC313_GPIO_SR_IO16 (MSC313_GPIO_SR + 14) +#define MSC313_GPIO_SR_IO17 (MSC313_GPIO_SR + 15) + +#define MSC313_GPIO_SD (MSC313_GPIO_SR_IO17 + 1) +#define MSC313_GPIO_SD_CLK (MSC313_GPIO_SD + 0) +#define MSC313_GPIO_SD_CMD (MSC313_GPIO_SD + 1) +#define MSC313_GPIO_SD_D0 (MSC313_GPIO_SD + 2) +#define MSC313_GPIO_SD_D1 (MSC313_GPIO_SD + 3) +#define MSC313_GPIO_SD_D2 (MSC313_GPIO_SD + 4) +#define MSC313_GPIO_SD_D3 (MSC313_GPIO_SD + 5) + +#define MSC313_GPIO_I2C1 (MSC313_GPIO_SD_D3 + 1) +#define MSC313_GPIO_I2C1_SCL (MSC313_GPIO_I2C1 + 0) +#define MSC313_GPIO_I2C1_SDA (MSC313_GPIO_I2C1 + 1) + +#define MSC313_GPIO_SPI0 (MSC313_GPIO_I2C1_SDA + 1) +#define MSC313_GPIO_SPI0_CZ (MSC313_GPIO_SPI0 + 0) +#define MSC313_GPIO_SPI0_CK (MSC313_GPIO_SPI0 + 1) +#define MSC313_GPIO_SPI0_DI (MSC313_GPIO_SPI0 + 2) +#define MSC313_GPIO_SPI0_DO (MSC313_GPIO_SPI0 + 3) + +#endif /* _DT_BINDINGS_MSC313_GPIO_H */ -- 2.28.0
