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-Qualcomm MSM8960 TLMM block
-
-This binding describes the Top Level Mode Multiplexer block found in the
-MSM8960 platform.
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be "qcom,msm8960-pinctrl"
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: the base address and size of the TLMM register space.
-
-- 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
- Definition: see ../gpio/gpio.txt
-
-- gpio-reserved-ranges:
- Usage: optional
- 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-gpio151,
- sdc1_clk,
- sdc1_cmd,
- sdc1_data
- sdc3_clk,
- sdc3_cmd,
- sdc3_data
-
-- 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:
- audio_pcm, bt, cam_mclk0, cam_mclk1, cam_mclk2,
- codec_mic_i2s, codec_spkr_i2s, ext_gps, fm, gps_blanking,
- gps_pps_in, gps_pps_out, gp_clk_0a, gp_clk_0b, gp_clk_1a,
- gp_clk_1b, gp_clk_2a, gp_clk_2b, gp_mn, gp_pdm_0a,
- gp_pdm_0b, gp_pdm_1a, gp_pdm_1b, gp_pdm_2a, gp_pdm_2b, gpio,
- gsbi1, gsbi1_spi_cs1_n, gsbi1_spi_cs2a_n, gsbi1_spi_cs2b_n,
- gsbi1_spi_cs3_n, gsbi2, gsbi2_spi_cs1_n, gsbi2_spi_cs2_n,
- gsbi2_spi_cs3_n, gsbi3, gsbi4, gsbi4_3d_cam_i2c_l,
- gsbi4_3d_cam_i2c_r, gsbi5, gsbi5_3d_cam_i2c_l,
- gsbi5_3d_cam_i2c_r, gsbi6, gsbi7, gsbi8, gsbi9, gsbi10,
- gsbi11, gsbi11_spi_cs1a_n, gsbi11_spi_cs1b_n,
- gsbi11_spi_cs2a_n, gsbi11_spi_cs2b_n, gsbi11_spi_cs3_n,
- gsbi12, hdmi_cec, hdmi_ddc_clock, hdmi_ddc_data,
- hdmi_hot_plug_detect, hsic, mdp_vsync, mi2s, mic_i2s,
- pmb_clk, pmb_ext_ctrl, ps_hold, rpm_wdog, sdc2, sdc4, sdc5,
- slimbus1, slimbus2, spkr_i2s, ssbi1, ssbi2, ssbi_ext_gps,
- ssbi_pmic2, ssbi_qpa1, ssbi_ts, tsif1, tsif2, ts_eoc,
- usb_fs1, usb_fs1_oe, usb_fs1_oe_n, usb_fs2, usb_fs2_oe,
- usb_fs2_oe_n, vfe_camif_timer1_a, vfe_camif_timer1_b,
- vfe_camif_timer2, vfe_camif_timer3_a, vfe_camif_timer3_b,
- vfe_camif_timer4_a, vfe_camif_timer4_b, vfe_camif_timer4_c,
- vfe_camif_timer5_a, vfe_camif_timer5_b, vfe_camif_timer6_a,
- vfe_camif_timer6_b, vfe_camif_timer6_c, vfe_camif_timer7_a,
- vfe_camif_timer7_b, vfe_camif_timer7_c, wlan
-
-- 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:
-
- msmgpio: pinctrl@800000 {
- compatible = "qcom,msm8960-pinctrl";
- reg = <0x800000 0x4000>;
-
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&msmgpio 0 0 152>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupts = <0 16 0x4>;
-
- gsbi8_uart: gsbi8-uart {
- mux {
- pins = "gpio34", "gpio35";
- function = "gsbi8";
- };
-
- tx {
- pins = "gpio34";
- drive-strength = <4>;
- bias-disable;
- };
-
- rx {
- pins = "gpio35";
- drive-strength = <2>;
- bias-pull-up;
- };
- };
- };