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diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt new file mode 100644 index 000000000..fa37733e5 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt @@ -0,0 +1,190 @@ +Qualcomm SM8150 TLMM block + +This binding describes the Top Level Mode Multiplexer block found in the +QCS404 platform. + +- compatible: + Usage: required + Value type: <string> + Definition: must be "qcom,sm8150-pinctrl" + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: the base address and size of the north, south, west + and east TLMM tiles. + +- reg-names: + Usage: required + Value type: <prop-encoded-array> + Defintiion: names for the cells of reg, must contain "north", "south" + "west" and "east". + +- 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-gpio149 + 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, ddr_pxi2, atest_char, + atest_char0, atest_char1, atest_char2, atest_char3, + audio_ref, atest_usb1, atest_usb2, atest_usb10, + atest_usb11, atest_usb12, atest_usb13, atest_usb20, + atest_usb21, atest_usb22, atest_usb2, atest_usb23, + btfm_slimbus, cam_mclk, cci_async, cci_i2c, cci_timer0, + cci_timer1, cci_timer2, cci_timer3, cci_timer4, + cri_trng, cri_trng0, cri_trng1, dbg_out, ddr_bist, + ddr_pxi0, ddr_pxi1, ddr_pxi3, edp_hot, edp_lcd, + emac_phy, emac_pps, gcc_gp1, gcc_gp2, gcc_gp3, gpio, + hs1_mi2s, hs2_mi2s, hs3_mi2s, jitter_bist, + lpass_slimbus, mdp_vsync, mdp_vsync0, mdp_vsync1, + mdp_vsync2, mdp_vsync3, mss_lte, m_voc, nav_pps, + pa_indicator, pci_e0, phase_flag, pll_bypassnl, + pll_bist, pci_e1, pll_reset, pri_mi2s, pri_mi2s_ws, + prng_rosc, qdss, qdss_cti, qlink_request, qlink_enable, + qspi0, qspi1, qspi2, qspi3, qspi_clk, qspi_cs, qua_mi2s, + qup0, qup1, qup2, qup3, qup4, qup5, qup6, qup7, qup8, + qup9, qup10, qup11, qup12, qup13, qup14, qup15, qup16, + qup17, qup18, qup19, qup_l4, qup_l5, qup_l6, rgmii, + sdc4, sd_write, sec_mi2s, spkr_i2s, sp_cmu, ter_mi2s, + tgu_ch0, tgu_ch1, tgu_ch2, tgu_ch3, tsense_pwm1, + tsense_pwm2, tsif1, tsif2, uim1, uim2, uim_batt, + usb2phy_ac, usb_phy, vfr_1, vsense_trigger, wlan1_adc0, + wlan1_adc1, wlan2_adc0, wlan2_adc1, wmss_reset + +- bias-disable: + Usage: optional + Value type: <none> + Definition: The specified pins should be configued as no pull. + +- bias-pull-down: + Usage: optional + Value type: <none> + Definition: The specified pins should be configued as pull down. + +- bias-pull-up: + Usage: optional + Value type: <none> + Definition: The specified pins should be configued 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@3000000 { + compatible = "qcom,sm8150-pinctrl"; + reg = <0x03100000 0x300000>, + <0x03500000 0x300000>, + <0x03900000 0x300000>, + <0x03D00000 0x300000>; + reg-names = "west", "east", "north", "south"; + interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&tlmm 0 0 175>; + gpio-reserved-ranges = <0 4>, <126 4>; + interrupt-controller; + #interrupt-cells = <2>; + }; |