Qualcomm APQ8084 TLMM block This binding describes the Top Level Mode Multiplexer block found in the MSM8960 platform. - compatible: Usage: required Value type: Definition: must be "qcom,apq8084-pinctrl" - reg: Usage: required Value type: Definition: the base address and size of the TLMM register space. - interrupts: Usage: required Value type: Definition: should specify the TLMM summary IRQ. - interrupt-controller: Usage: required Value type: Definition: identifies this node as an interrupt controller - #interrupt-cells: Usage: required Value type: Definition: must be 2. Specifying the pin number and flags, as defined in - gpio-controller: Usage: required Value type: Definition: identifies this node as a gpio controller - #gpio-cells: Usage: required Value type: Definition: must be 2. Specifying the pin number and flags, as defined in 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: Definition: List of gpio pins affected by the properties specified in this subnode. Valid pins are: gpio0-gpio146, sdc1_clk, sdc1_cmd, sdc1_data sdc2_clk, sdc2_cmd, sdc2_data - function: Usage: required Value type: Definition: Specify the alternative function to be configured for the specified pins. Functions are only valid for gpio pins. Valid values are: adsp_ext, audio_ref, blsp_i2c1, blsp_i2c2, blsp_i2c3, blsp_i2c4, blsp_i2c5, blsp_i2c6, blsp_i2c7, blsp_i2c8, blsp_i2c9, blsp_i2c10, blsp_i2c11, blsp_i2c12, blsp_spi1, blsp_spi2, blsp_spi3, blsp_spi4, blsp_spi5, blsp_spi6, blsp_spi7, blsp_spi8, blsp_spi9, blsp_spi10, blsp_spi11, blsp_spi12, blsp_uart1, blsp_uart2, blsp_uart3, blsp_uart4, blsp_uart5, blsp_uart6, blsp_uart7, blsp_uart8, blsp_uart9, blsp_uart10, blsp_uart11, blsp_uart12, blsp_uim1, blsp_uim2, blsp_uim3, blsp_uim4, blsp_uim5, blsp_uim6, blsp_uim7, blsp_uim8, blsp_uim9, blsp_uim10, blsp_uim11, blsp_uim12, cam_mclk0, cam_mclk1, cam_mclk2, cam_mclk3, cci_async, cci_async_in0, cci_i2c0, cci_i2c1, cci_timer0, cci_timer1, cci_timer2, cci_timer3, cci_timer4, edp_hpd, gcc_gp1, gcc_gp2, gcc_gp3, gcc_obt, gcc_vtt,i gp_mn, gp_pdm0, gp_pdm1, gp_pdm2, gp0_clk, gp1_clk, gpio, hdmi_cec, hdmi_ddc, hdmi_dtest, hdmi_hpd, hdmi_rcv, hsic, ldo_en, ldo_update, mdp_vsync, pci_e0, pci_e0_n, pci_e0_rst, pci_e1, pci_e1_rst, pci_e1_rst_n, pci_e1_clkreq_n, pri_mi2s, qua_mi2s, sata_act, sata_devsleep, sata_devsleep_n, sd_write, sdc_emmc_mode, sdc3, sdc4, sec_mi2s, slimbus, spdif_tx, spkr_i2s, spkr_i2s_ws, spss_geni, ter_mi2s, tsif1, tsif2, uim, uim_batt_alarm - bias-disable: Usage: optional Value type: Definition: The specified pins should be configued as no pull. - bias-pull-down: Usage: optional Value type: Definition: The specified pins should be configued as pull down. - bias-pull-up: Usage: optional Value type: Definition: The specified pins should be configued as pull up. - output-high: Usage: optional Value type: Definition: The specified pins are configured in output mode, driven high. Not valid for sdc pins. - output-low: Usage: optional Value type: Definition: The specified pins are configured in output mode, driven low. Not valid for sdc pins. - drive-strength: Usage: optional Value type: 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@fd510000 { compatible = "qcom,apq8084-pinctrl"; reg = <0xfd510000 0x4000>; gpio-controller; #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; interrupts = <0 208 0>; uart2: uart2-default { mux { pins = "gpio4", "gpio5"; function = "blsp_uart2"; }; tx { pins = "gpio4"; drive-strength = <4>; bias-disable; }; rx { pins = "gpio5"; drive-strength = <2>; bias-pull-up; }; }; };