diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-02 14:22:53 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-02 14:22:53 -0800 |
commit | ef991796be0e65b644fe60198bd1112830eff173 (patch) | |
tree | fcefb8bd7f8ba7d8dcde31ae37f703f05cb131a9 /Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt | |
parent | bf644990a796bd72d6f3977f3307169919a23f85 (diff) | |
parent | 02e389e63e3523828fc3832f27e0341885f60f6f (diff) |
Merge tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v4.16 kernel cycle.
Like with GPIO it is actually a bit calm this time.
Core changes:
- After lengthy discussions and partly due to my ignorance, we have
merged a patch making pinctrl_force_default() and
pinctrl_force_sleep() reprogram the states into the hardware of any
hogged pins, even if they are already in the desired state.
This only apply to hogged pins since groups of pins owned by
drivers need to be managed by each driver, lest they could not do
things like runtime PM and put pins to sleeping state even if the
system as a whole is not in sleep.
New drivers:
- New driver for the Microsemi Ocelot SoC. This is used in ethernet
switches.
- The X-Powers AXP209 GPIO driver was extended to also deal with pin
control and moved over from the GPIO subsystem. This circuit is a
mixed-mode integrated circuit which is part of AllWinner designs.
- New subdriver for the Qualcomm MSM8998 SoC, core of a high end
mobile devices (phones) chipset.
- New subdriver for the ST Microelectronics STM32MP157 MPU and
STM32F769 MCU from the STM32 family.
- New subdriver for the MediaTek MT7622 SoC. This is used for
routers, repeater, gateways and such network infrastructure.
- New subdriver for the NXP (former Freescale) i.MX 6ULL. This SoC
has multimedia features and target "smart devices", I guess in-car
entertainment, in-flight entertainment, industrial control panels
etc.
General improvements:
- Incremental improvements on the SH-PFC subdrivers for things like
the CAN bus.
- Enable the glitch filter on Baytrail GPIOs used for interrupts.
- Proper handling of pins to GPIO ranges on the Semtec SX150X
- An IRQ setup ordering fix on MCP23S08.
- A good set of janitorial coding style fixes"
* tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (102 commits)
pinctrl: mcp23s08: fix irq setup order
pinctrl: Forward declare struct device
pinctrl: sunxi: Use of_clk_get_parent_count() instead of open coding
pinctrl: stm32: add STM32F769 MCU support
pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping
pinctrl: sx150x: Register pinctrl before adding the gpiochip
pinctrl: sx150x: Unregister the pinctrl on release
pinctrl: ingenic: Remove redundant dev_err call in ingenic_pinctrl_probe()
pinctrl: sprd: Use seq_putc() in sprd_pinconf_group_dbg_show()
pinctrl: pinmux: Use seq_putc() in pinmux_pins_show()
pinctrl: abx500: Use seq_putc() in abx500_gpio_dbg_show()
pinctrl: mediatek: mt7622: align error handling of mtk_hw_get_value call
pinctrl: mediatek: mt7622: fix potential uninitialized value being returned
pinctrl: uniphier: refactor drive strength get/set functions
pinctrl: imx7ulp: constify struct imx_cfg_params_decode
pinctrl: imx: constify struct imx_pinctrl_soc_info
pinctrl: imx7d: simplify imx7d_pinctrl_probe
pinctrl: imx: use struct imx_pinctrl_soc_info as a const
pinctrl: sunxi-pinctrl: fix pin funtion can not be match correctly.
pinctrl: qcom: Add msm8998 pinctrl driver
...
Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt')
-rw-r--r-- | Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt new file mode 100644 index 000000000000..f18ed99f6e14 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt @@ -0,0 +1,351 @@ +== MediaTek MT7622 pinctrl controller == + +Required properties for the root node: + - compatible: Should be one of the following + "mediatek,mt7622-pinctrl" for MT7622 SoC + - reg: offset and length of the pinctrl space + + - gpio-controller: Marks the device node as a GPIO controller. + - #gpio-cells: Should be two. The first cell is the pin number and the + second is the GPIO flags. + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices, including the meaning of the +phrase "pin configuration node". + +MT7622 pin configuration nodes act as a container for an arbitrary number of +subnodes. Each of these subnodes represents some desired configuration for a +pin, a group, or a list of pins or groups. This configuration can include the +mux function to select on those pin(s)/group(s), and various pin configuration +parameters, such as pull-up, slew rate, etc. + +We support 2 types of configuration nodes. Those nodes can be either pinmux +nodes or pinconf nodes. Each configuration node can consist of multiple nodes +describing the pinmux and pinconf options. + +The name of each subnode doesn't matter as long as it is unique; all subnodes +should be enumerated and processed purely based on their content. + +== pinmux nodes content == + +The following generic properties as defined in pinctrl-bindings.txt are valid +to specify in a pinmux subnode: + +Required properties are: + - groups: An array of strings. Each string contains the name of a group. + Valid values for these names are listed below. + - function: A string containing the name of the function to mux to the + group. Valid values for function names are listed below. + +== pinconf nodes content == + +The following generic properties as defined in pinctrl-bindings.txt are valid +to specify in a pinconf subnode: + +Required properties are: + - pins: An array of strings. Each string contains the name of a pin. + Valid values for these names are listed below. + - groups: An array of strings. Each string contains the name of a group. + Valid values for these names are listed below. + +Optional properies are: + bias-disable, bias-pull, bias-pull-down, input-enable, + input-schmitt-enable, input-schmitt-disable, output-enable + output-low, output-high, drive-strength, slew-rate + + Valid arguments for 'slew-rate' are '0' for no slew rate controlled and '1' for + slower slew rate respectively. + Valid arguments for 'drive-strength', 4, 8, 12, or 16 in mA. + +The following specific properties as defined are valid to specify in a pinconf +subnode: + +Optional properties are: + - mediatek,tdsel: An integer describing the steps for output level shifter duty + cycle when asserted (high pulse width adjustment). Valid arguments are from 0 + to 15. + - mediatek,rdsel: An integer describing the steps for input level shifter duty + cycle when asserted (high pulse width adjustment). Valid arguments are from 0 + to 63. + +== Valid values for pins, function and groups on MT7622 == + +Valid values for pins are: +pins can be referenced via the pin names as the below table shown and the +related physical number is also put ahead of those names which helps cross +references to pins between groups to know whether pins assignment conflict +happens among devices try to acquire those available pins. + + Pin #: Valid values for pins + ----------------------------- + PIN 0: "GPIO_A" + PIN 1: "I2S1_IN" + PIN 2: "I2S1_OUT" + PIN 3: "I2S_BCLK" + PIN 4: "I2S_WS" + PIN 5: "I2S_MCLK" + PIN 6: "TXD0" + PIN 7: "RXD0" + PIN 8: "SPI_WP" + PIN 9: "SPI_HOLD" + PIN 10: "SPI_CLK" + PIN 11: "SPI_MOSI" + PIN 12: "SPI_MISO" + PIN 13: "SPI_CS" + PIN 14: "I2C_SDA" + PIN 15: "I2C_SCL" + PIN 16: "I2S2_IN" + PIN 17: "I2S3_IN" + PIN 18: "I2S4_IN" + PIN 19: "I2S2_OUT" + PIN 20: "I2S3_OUT" + PIN 21: "I2S4_OUT" + PIN 22: "GPIO_B" + PIN 23: "MDC" + PIN 24: "MDIO" + PIN 25: "G2_TXD0" + PIN 26: "G2_TXD1" + PIN 27: "G2_TXD2" + PIN 28: "G2_TXD3" + PIN 29: "G2_TXEN" + PIN 30: "G2_TXC" + PIN 31: "G2_RXD0" + PIN 32: "G2_RXD1" + PIN 33: "G2_RXD2" + PIN 34: "G2_RXD3" + PIN 35: "G2_RXDV" + PIN 36: "G2_RXC" + PIN 37: "NCEB" + PIN 38: "NWEB" + PIN 39: "NREB" + PIN 40: "NDL4" + PIN 41: "NDL5" + PIN 42: "NDL6" + PIN 43: "NDL7" + PIN 44: "NRB" + PIN 45: "NCLE" + PIN 46: "NALE" + PIN 47: "NDL0" + PIN 48: "NDL1" + PIN 49: "NDL2" + PIN 50: "NDL3" + PIN 51: "MDI_TP_P0" + PIN 52: "MDI_TN_P0" + PIN 53: "MDI_RP_P0" + PIN 54: "MDI_RN_P0" + PIN 55: "MDI_TP_P1" + PIN 56: "MDI_TN_P1" + PIN 57: "MDI_RP_P1" + PIN 58: "MDI_RN_P1" + PIN 59: "MDI_RP_P2" + PIN 60: "MDI_RN_P2" + PIN 61: "MDI_TP_P2" + PIN 62: "MDI_TN_P2" + PIN 63: "MDI_TP_P3" + PIN 64: "MDI_TN_P3" + PIN 65: "MDI_RP_P3" + PIN 66: "MDI_RN_P3" + PIN 67: "MDI_RP_P4" + PIN 68: "MDI_RN_P4" + PIN 69: "MDI_TP_P4" + PIN 70: "MDI_TN_P4" + PIN 71: "PMIC_SCL" + PIN 72: "PMIC_SDA" + PIN 73: "SPIC1_CLK" + PIN 74: "SPIC1_MOSI" + PIN 75: "SPIC1_MISO" + PIN 76: "SPIC1_CS" + PIN 77: "GPIO_D" + PIN 78: "WATCHDOG" + PIN 79: "RTS3_N" + PIN 80: "CTS3_N" + PIN 81: "TXD3" + PIN 82: "RXD3" + PIN 83: "PERST0_N" + PIN 84: "PERST1_N" + PIN 85: "WLED_N" + PIN 86: "EPHY_LED0_N" + PIN 87: "AUXIN0" + PIN 88: "AUXIN1" + PIN 89: "AUXIN2" + PIN 90: "AUXIN3" + PIN 91: "TXD4" + PIN 92: "RXD4" + PIN 93: "RTS4_N" + PIN 94: "CST4_N" + PIN 95: "PWM1" + PIN 96: "PWM2" + PIN 97: "PWM3" + PIN 98: "PWM4" + PIN 99: "PWM5" + PIN 100: "PWM6" + PIN 101: "PWM7" + PIN 102: "GPIO_E" + +Valid values for function are: + "emmc", "eth", "i2c", "i2s", "ir", "led", "flash", "pcie", + "pmic", "pwm", "sd", "spi", "tdm", "uart", "watchdog" + +Valid values for groups are: +additional data is put followingly with valid value allowing us to know which +applicable function and which relevant pins (in pin#) are able applied for that +group. + + Valid value function pins (in pin#) + ------------------------------------------------------------------------- + "emmc" "emmc" 40, 41, 42, 43, 44, 45, + 47, 48, 49, 50 + "emmc_rst" "emmc" 37 + "esw" "eth" 51, 52, 53, 54, 55, 56, + 57, 58, 59, 60, 61, 62, + 63, 64, 65, 66, 67, 68, + 69, 70 + "esw_p0_p1" "eth" 51, 52, 53, 54, 55, 56, + 57, 58 + "esw_p2_p3_p4" "eth" 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70 + "rgmii_via_esw" "eth" 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70 + "rgmii_via_gmac1" "eth" 59, 60, 61, 62, 63, 64, + 65, 66, 67, 68, 69, 70 + "rgmii_via_gmac2" "eth" 25, 26, 27, 28, 29, 30, + 31, 32, 33, 34, 35, 36 + "mdc_mdio" "eth" 23, 24 + "i2c0" "i2c" 14, 15 + "i2c1_0" "i2c" 55, 56 + "i2c1_1" "i2c" 73, 74 + "i2c1_2" "i2c" 87, 88 + "i2c2_0" "i2c" 57, 58 + "i2c2_1" "i2c" 75, 76 + "i2c2_2" "i2c" 89, 90 + "i2s_in_mclk_bclk_ws" "i2s" 3, 4, 5 + "i2s1_in_data" "i2s" 1 + "i2s2_in_data" "i2s" 16 + "i2s3_in_data" "i2s" 17 + "i2s4_in_data" "i2s" 18 + "i2s_out_mclk_bclk_ws" "i2s" 3, 4, 5 + "i2s1_out_data" "i2s" 2 + "i2s2_out_data" "i2s" 19 + "i2s3_out_data" "i2s" 20 + "i2s4_out_data" "i2s" 21 + "ir_0_tx" "ir" 16 + "ir_1_tx" "ir" 59 + "ir_2_tx" "ir" 99 + "ir_0_rx" "ir" 17 + "ir_1_rx" "ir" 60 + "ir_2_rx" "ir" 100 + "ephy_leds" "led" 86, 91, 92, 93, 94 + "ephy0_led" "led" 86 + "ephy1_led" "led" 91 + "ephy2_led" "led" 92 + "ephy3_led" "led" 93 + "ephy4_led" "led" 94 + "wled" "led" 85 + "par_nand" "flash" 37, 38, 39, 40, 41, 42, + 43, 44, 45, 46, 47, 48, + 49, 50 + "snfi" "flash" 8, 9, 10, 11, 12, 13 + "spi_nor" "flash" 8, 9, 10, 11, 12, 13 + "pcie0_0_waken" "pcie" 14 + "pcie0_1_waken" "pcie" 79 + "pcie1_0_waken" "pcie" 14 + "pcie0_0_clkreq" "pcie" 15 + "pcie0_1_clkreq" "pcie" 80 + "pcie1_0_clkreq" "pcie" 15 + "pcie0_pad_perst" "pcie" 83 + "pcie1_pad_perst" "pcie" 84 + "pmic_bus" "pmic" 71, 72 + "pwm_ch1_0" "pwm" 51 + "pwm_ch1_1" "pwm" 73 + "pwm_ch1_2" "pwm" 95 + "pwm_ch2_0" "pwm" 52 + "pwm_ch2_1" "pwm" 74 + "pwm_ch2_2" "pwm" 96 + "pwm_ch3_0" "pwm" 53 + "pwm_ch3_1" "pwm" 75 + "pwm_ch3_2" "pwm" 97 + "pwm_ch4_0" "pwm" 54 + "pwm_ch4_1" "pwm" 67 + "pwm_ch4_2" "pwm" 76 + "pwm_ch4_3" "pwm" 98 + "pwm_ch5_0" "pwm" 68 + "pwm_ch5_1" "pwm" 77 + "pwm_ch5_2" "pwm" 99 + "pwm_ch6_0" "pwm" 69 + "pwm_ch6_1" "pwm" 78 + "pwm_ch6_2" "pwm" 81 + "pwm_ch6_3" "pwm" 100 + "pwm_ch7_0" "pwm" 70 + "pwm_ch7_1" "pwm" 82 + "pwm_ch7_2" "pwm" 101 + "sd_0" "sd" 16, 17, 18, 19, 20, 21 + "sd_1" "sd" 25, 26, 27, 28, 29, 30 + "spic0_0" "spi" 63, 64, 65, 66 + "spic0_1" "spi" 79, 80, 81, 82 + "spic1_0" "spi" 67, 68, 69, 70 + "spic1_1" "spi" 73, 74, 75, 76 + "spic2_0_wp_hold" "spi" 8, 9 + "spic2_0" "spi" 10, 11, 12, 13 + "tdm_0_out_mclk_bclk_ws" "tdm" 8, 9, 10 + "tdm_0_in_mclk_bclk_ws" "tdm" 11, 12, 13 + "tdm_0_out_data" "tdm" 20 + "tdm_0_in_data" "tdm" 21 + "tdm_1_out_mclk_bclk_ws" "tdm" 57, 58, 59 + "tdm_1_in_mclk_bclk_ws" "tdm" 60, 61, 62 + "tdm_1_out_data" "tdm" 55 + "tdm_1_in_data" "tdm" 56 + "uart0_0_tx_rx" "uart" 6, 7 + "uart1_0_tx_rx" "uart" 55, 56 + "uart1_0_rts_cts" "uart" 57, 58 + "uart1_1_tx_rx" "uart" 73, 74 + "uart1_1_rts_cts" "uart" 75, 76 + "uart2_0_tx_rx" "uart" 3, 4 + "uart2_0_rts_cts" "uart" 1, 2 + "uart2_1_tx_rx" "uart" 51, 52 + "uart2_1_rts_cts" "uart" 53, 54 + "uart2_2_tx_rx" "uart" 59, 60 + "uart2_2_rts_cts" "uart" 61, 62 + "uart2_3_tx_rx" "uart" 95, 96 + "uart3_0_tx_rx" "uart" 57, 58 + "uart3_1_tx_rx" "uart" 81, 82 + "uart3_1_rts_cts" "uart" 79, 80 + "uart4_0_tx_rx" "uart" 61, 62 + "uart4_1_tx_rx" "uart" 91, 92 + "uart4_1_rts_cts" "uart" 93, 94 + "uart4_2_tx_rx" "uart" 97, 98 + "uart4_2_rts_cts" "uart" 95, 96 + "watchdog" "watchdog" 78 + +Example: + + pio: pinctrl@10211000 { + compatible = "mediatek,mt7622-pinctrl"; + reg = <0 0x10211000 0 0x1000>; + gpio-controller; + #gpio-cells = <2>; + + pinctrl_eth_default: eth-default { + mux-mdio { + groups = "mdc_mdio"; + function = "eth"; + drive-strength = <12>; + }; + + mux-gmac2 { + groups = "gmac2"; + function = "eth"; + drive-strength = <12>; + }; + + mux-esw { + groups = "esw"; + function = "eth"; + drive-strength = <8>; + }; + + conf-mdio { + pins = "MDC"; + bias-pull-up; + }; + }; + }; |