| Qualcomm Technologies, Inc. MSM8937 TLMM block |
| |
| This binding describes the Top Level Mode Multiplexer block found in the |
| MSM8937 platform. |
| |
| - compatible: |
| Usage: required |
| Value type: <string> |
| Definition: must be "qcom,msm8937-pinctrl" |
| |
| - reg: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: the base address and size of the TLMM register space |
| provided as "pinctrl_regs". |
| |
| - reg-names: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: Provides labels for the reg property. |
| |
| - 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> |
| |
| 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-gpio133, |
| sdc1_clk, |
| sdc1_cmd, |
| sdc1_data, |
| sdc1_rclk, |
| sdc2_clk, |
| sdc2_cmd, |
| sdc2_data, |
| qdsd_clk, |
| 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: |
| qdss_tracedata_b, blsp_uart1, gpio, blsp_spi1, adsp_ext, blsp_i2c1, prng_rosc, |
| qdss_cti_trig_out_b0, blsp_spi2, blsp_uart2, blsp_uart3, pbs0, pbs1, |
| pwr_modem_enabled_b, blsp_i2c3, gcc_gp2_clk_b, ldo_update, |
| atest_combodac_to_gpio_native, ldo_en, blsp_i2c2, gcc_gp1_clk_b, pbs2, |
| atest_gpsadc_dtest0_native, blsp_spi3, gcc_gp3_clk_b, blsp_spi4, blsp_uart4, |
| sec_mi2s, pwr_nav_enabled_b, codec_mad, pwr_crypto_enabled_b, blsp_i2c4, |
| blsp_spi5, blsp_uart5, qdss_traceclk_a, atest_bbrx1, m_voc, |
| qdss_cti_trig_in_a0, qdss_cti_trig_in_b0, blsp_i2c6, qdss_traceclk_b, |
| atest_wlan0, atest_wlan1, atest_bbrx0, blsp_i2c5, qdss_tracectl_a, |
| atest_gpsadc_dtest1_native, qdss_tracedata_a, blsp_spi6, blsp_uart6, |
| qdss_tracectl_b, mdp_vsync, pri_mi2s_mclk_a, sec_mi2s_mclk_a, cam_mclk, |
| cci_i2c, pwr_modem_enabled_a, cci_timer0, cci_timer1, cam1_standby, |
| pwr_nav_enabled_a, cam1_rst, pwr_crypto_enabled_a, forced_usb, |
| qdss_cti_trig_out_b1, cam2_rst, webcam_standby, cci_async, webcam_rst, |
| ov_ldo, sd_write, accel_int, gcc_gp1_clk_a, alsp_int, gcc_gp2_clk_a, |
| mag_int, gcc_gp3_clk_a, blsp6_spi, fp_int, qdss_cti_trig_in_b1, uim_batt, |
| cam2_standby, uim1_data, uim1_clk, uim1_reset, uim1_present, uim2_data, |
| uim2_clk, uim2_reset, uim2_present, sensor_rst, mipi_dsi0, smb_int, |
| cam0_ldo, us_euro, atest_char3, dbg_out, bimc_dte0, ts_resout, ts_sample, |
| sec_mi2s_mclk_b, pri_mi2s, sdcard_det, atest_char1, ebi_cdc, audio_reset, |
| atest_char0, audio_ref, cdc_pdm0, pri_mi2s_mclk_b, lpass_slimbus, |
| lpass_slimbus0, lpass_slimbus1, codec_int1, codec_int2, wcss_bt, |
| atest_char2, ebi_ch0, wcss_wlan2, wcss_wlan1, wcss_wlan0, wcss_wlan, |
| wcss_fm, ext_lpass, cri_trng, cri_trng1, cri_trng0, blsp_spi7, blsp_uart7, |
| pri_mi2s_ws, blsp_i2c7, gcc_tlmm, dmic0_clk, dmic0_data, key_volp, |
| qdss_cti_trig_in_a1, us_emitter, wsa_irq, wsa_io, wsa_reset, blsp_spi8, |
| blsp_uart8, blsp_i2c8, gcc_plltest, nav_pps_in_a, pa_indicator, modem_tsync, |
| nav_tsync, nav_pps_in_b, nav_pps, gsm0_tx, atest_char, atest_tsens, |
| bimc_dte1, ssbi_wtr1, fp_gpio, coex_uart, key_snapshot, key_focus, nfc_pwr, |
| blsp8_spi, qdss_cti_trig_out_a0, qdss_cti_trig_out_a1 |
| |
| - 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@1000000 { |
| compatible = "qcom,msm8937-pinctrl"; |
| reg = <0x1000000 0x300000>; |
| reg-names = "pinctrl_regs"; |
| interrupts = <0 208 0>; |
| gpio-controller; |
| #gpio-cells = <2>; |
| interrupt-controller; |
| #interrupt-cells = <2>; |
| |
| pmx-uartconsole { |
| uart_console_active: uart_console_active { |
| mux { |
| pins = "gpio4", "gpio5"; |
| function = "blsp_uart2"; |
| }; |
| |
| config { |
| pins = "gpio4", "gpio5"; |
| drive-strength = <2>; |
| bias-disable; |
| }; |
| }; |
| |
| uart_console_sleep: uart_console_sleep { |
| mux { |
| pins = "gpio4", "gpio5"; |
| function = "blsp_uart2"; |
| }; |
| |
| config { |
| pins = "gpio4", "gpio5"; |
| drive-strength = <2>; |
| bias-pull-down; |
| }; |
| }; |
| |
| }; |
| }; |