FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/pinctrl/qcom,sc7180-pinctrl.txt

     Qualcomm Technologies, Inc. SC7180 TLMM block
     
     This binding describes the Top Level Mode Multiplexer block found in the
     SC7180 platform.
     
     - compatible:
             Usage: required
             Value type: <string>
             Definition: must be "qcom,sc7180-pinctrl"
    
    - reg:
            Usage: required
            Value type: <prop-encoded-array>
            Definition: the base address and size of the north, south and west
                        TLMM tiles
    
    - reg-names:
            Usage: required
            Value type: <prop-encoded-array>
            Definition: names for the cells of reg, must contain "north", "south"
                        and "west".
    
    - interrupts:
            Usage: required
            Value type: <prop-encoded-array>
            Definition: should specify the TLMM summary IRQ.
    
    - interrupt-controller:
            Usage: required
            Value type: <none>
            Definition: identifies this node as an interrupt controller
    
    - #interrupt-cells:
            Usage: required
            Value type: <u32>
            Definition: must be 2. Specifying the pin number and flags, as defined
                        in <dt-bindings/interrupt-controller/irq.h>
    
    - gpio-controller:
            Usage: required
            Value type: <none>
            Definition: identifies this node as a gpio controller
    
    - #gpio-cells:
            Usage: required
            Value type: <u32>
            Definition: must be 2. Specifying the pin number and flags, as defined
                        in <dt-bindings/gpio/gpio.h>
    
    - gpio-ranges:
            Usage: required
            Value type: <prop-encoded-array>
            Definition:  see ../gpio/gpio.txt
    
    - gpio-reserved-ranges:
            Usage: optional
            Value type: <prop-encoded-array>
            Definition: see ../gpio/gpio.txt
    
    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, including the meaning of the
    phrase "pin configuration node".
    
    The 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, drive strength, etc.
    
    
    PIN CONFIGURATION NODES:
    
    The name of each subnode is not important; all subnodes should be enumerated
    and processed purely based on their content.
    
    Each subnode only affects those parameters that are explicitly listed. In
    other words, a subnode that lists a mux function but no pin configuration
    parameters implies no information about any pin configuration parameters.
    Similarly, a pin subnode that describes a pullup parameter implies no
    information about e.g. the mux function.
    
    
    The following generic properties as defined in pinctrl-bindings.txt are valid
    to specify in a pin configuration subnode:
    
    - pins:
            Usage: required
            Value type: <string-array>
            Definition: List of gpio pins affected by the properties specified in
                        this subnode.
    
                        Valid pins are:
                          gpio0-gpio118
                            Supports mux, bias and drive-strength
    
                          sdc1_clk, sdc1_cmd, sdc1_data sdc2_clk, sdc2_cmd,
                         sdc2_data sdc1_rclk
                           Supports bias and drive-strength
   
                         ufs_reset
                           Supports bias and drive-strength
   
   - function:
           Usage: required
           Value type: <string>
           Definition: Specify the alternative function to be configured for the
                       specified pins. Functions are only valid for gpio pins.
                       Valid values are:
   
                       adsp_ext, agera_pll, aoss_cti, atest_char, atest_char0,
                       atest_char1, atest_char2, atest_char3, atest_tsens,
                       atest_tsens2, atest_usb1, atest_usb10, atest_usb11,
                       atest_usb12, atest_usb13, atest_usb2, atest_usb20,
                       atest_usb21, atest_usb22, atest_usb23, audio_ref,
                       btfm_slimbus, cam_mclk, cci_async, cci_i2c, cci_timer0,
                       cci_timer1, cci_timer2, cci_timer3, cci_timer4,
                       cri_trng, dbg_out, ddr_bist, ddr_pxi0, ddr_pxi1,
                       ddr_pxi2, ddr_pxi3, dp_hot, edp_lcd, gcc_gp1, gcc_gp2,
                       gcc_gp3, gpio, gp_pdm0, gp_pdm1, gp_pdm2, gps_tx,
                       jitter_bist, ldo_en, ldo_update, lpass_ext, mdp_vsync,
                       mdp_vsync0, mdp_vsync1, mdp_vsync2, mdp_vsync3, mi2s_0,
                       mi2s_1, mi2s_2, mss_lte, m_voc, pa_indicator, phase_flag,
                       PLL_BIST, pll_bypassnl, pll_reset, prng_rosc, qdss,
                       qdss_cti, qlink_enable, qlink_request, qspi_clk, qspi_cs,
                       qspi_data, qup00, qup01, qup02_i2c, qup02_uart, qup03,
                       qup04_i2c, qup04_uart, qup05, qup10, qup11_i2c, qup11_uart,
                       qup12, qup13_i2c, qup13_uart, qup14, qup15, sdc1_tb,
                       sdc2_tb, sd_write, sp_cmu, tgu_ch0, tgu_ch1, tgu_ch2,
                       tgu_ch3, tsense_pwm1, tsense_pwm2, uim1, uim2, uim_batt,
                       usb_phy, vfr_1, _V_GPIO, _V_PPS_IN, _V_PPS_OUT,
                       vsense_trigger, wlan1_adc0, wlan1_adc1, wlan2_adc0,
                       wlan2_adc1,
   
   - bias-disable:
           Usage: optional
           Value type: <none>
           Definition: The specified pins should be configured as no pull.
   
   - bias-pull-down:
           Usage: optional
           Value type: <none>
           Definition: The specified pins should be configured as pull down.
   
   - bias-pull-up:
           Usage: optional
           Value type: <none>
           Definition: The specified pins should be configured as pull up.
   
   - output-high:
           Usage: optional
           Value type: <none>
           Definition: The specified pins are configured in output mode, driven
                       high.
                       Not valid for sdc pins.
   
   - output-low:
           Usage: optional
           Value type: <none>
           Definition: The specified pins are configured in output mode, driven
                       low.
                       Not valid for sdc pins.
   
   - drive-strength:
           Usage: optional
           Value type: <u32>
           Definition: Selects the drive strength for the specified pins, in mA.
                       Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16
   
   Example:
   
           tlmm: pinctrl@3500000 {
                   compatible = "qcom,sc7180-pinctrl";
                   reg = <0x3500000 0x300000>,
                         <0x3900000 0x300000>,
                         <0x3D00000 0x300000>;
                   reg-names = "west", "north", "south";
                   interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
                   gpio-controller;
                   #gpio-cells = <2>;
                   gpio-ranges = <&tlmm 0 0 119>;
                   gpio-reserved-ranges = <0 4>, <106 4>;
                   interrupt-controller;
                   #interrupt-cells = <2>;
           };

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