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-Qualcomm MSM8916 TLMM block
-
-This binding describes the Top Level Mode Multiplexer block found in the
-MSM8916 platform.
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be "qcom,msm8916-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-gpio121,
- sdc1_clk,
- sdc1_cmd,
- sdc1_data
- sdc2_clk,
- sdc2_cmd,
- sdc2_data,
- qdsd_cmd,
- qdsd_data0,
- qdsd_data1,
- qdsd_data2,
- qdsd_data3
-
-- 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, alsp_int, atest_bbrx0, atest_bbrx1, atest_char, atest_char0,
- atest_char1, atest_char2, atest_char3, atest_combodac, atest_gpsadc0,
- atest_gpsadc1, atest_tsens, atest_wlan0, atest_wlan1, backlight_en,
- bimc_dte0,bimc_dte1, blsp_i2c1, blsp_i2c2, blsp_i2c3, blsp_i2c4,
- blsp_i2c5, blsp_i2c6, blsp_spi1, blsp_spi1_cs1, blsp_spi1_cs2,
- blsp_spi1_cs3, blsp_spi2, blsp_spi2_cs1, blsp_spi2_cs2, blsp_spi2_cs3,
- blsp_spi3, blsp_spi3_cs1, blsp_spi3_cs2, blsp_spi3_cs3, blsp_spi4,
- blsp_spi5, blsp_spi6, blsp_uart1, blsp_uart2, blsp_uim1, blsp_uim2,
- cam1_rst, cam1_standby, cam_mclk0, cam_mclk1, cci_async, cci_i2c,
- cci_timer0, cci_timer1, cci_timer2, cdc_pdm0, codec_mad, dbg_out,
- display_5v, dmic0_clk, dmic0_data, dsi_rst, ebi0_wrcdc, euro_us,
- ext_lpass, flash_strobe, gcc_gp1_clk_a, gcc_gp1_clk_b, gcc_gp2_clk_a,
- gcc_gp2_clk_b, gcc_gp3_clk_a, gcc_gp3_clk_b, gpio, gsm0_tx0, gsm0_tx1,
- gsm1_tx0, gsm1_tx1, gyro_accl, kpsns0, kpsns1, kpsns2, ldo_en,
- ldo_update, mag_int, mdp_vsync, modem_tsync, m_voc, nav_pps, nav_tsync,
- pa_indicator, pbs0, pbs1, pbs2, pri_mi2s, pri_mi2s_ws, prng_rosc,
- pwr_crypto_enabled_a, pwr_crypto_enabled_b, pwr_modem_enabled_a,
- pwr_modem_enabled_b, pwr_nav_enabled_a, pwr_nav_enabled_b,
- qdss_ctitrig_in_a0, qdss_ctitrig_in_a1, qdss_ctitrig_in_b0,
- qdss_ctitrig_in_b1, qdss_ctitrig_out_a0, qdss_ctitrig_out_a1,
- qdss_ctitrig_out_b0, qdss_ctitrig_out_b1, qdss_traceclk_a,
- qdss_traceclk_b, qdss_tracectl_a, qdss_tracectl_b, qdss_tracedata_a,
- qdss_tracedata_b, reset_n, sd_card, sd_write, sec_mi2s, smb_int,
- ssbi_wtr0, ssbi_wtr1, uim1, uim2, uim3, uim_batt, wcss_bt, wcss_fm,
- wcss_wlan, webcam1_rst
-
-- 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@1000000 {
- compatible = "qcom,msm8916-pinctrl";
- reg = <0x1000000 0x300000>;
- interrupts = <0 208 0>;
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&tlmm 0 0 122>;
- interrupt-controller;
- #interrupt-cells = <2>;
-
- 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;
- };
- };
- };