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195 lines
5.9 KiB
195 lines
5.9 KiB
Qualcomm MSM8916 TLMM block |
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This binding describes the Top Level Mode Multiplexer block found in the |
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MSM8916 platform. |
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- compatible: |
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Usage: required |
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Value type: <string> |
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Definition: must be "qcom,msm8916-pinctrl" |
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- reg: |
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Usage: required |
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Value type: <prop-encoded-array> |
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Definition: the base address and size of the TLMM register space. |
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- interrupts: |
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Usage: required |
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Value type: <prop-encoded-array> |
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Definition: should specify the TLMM summary IRQ. |
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- interrupt-controller: |
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Usage: required |
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Value type: <none> |
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Definition: identifies this node as an interrupt controller |
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- #interrupt-cells: |
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Usage: required |
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Value type: <u32> |
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Definition: must be 2. Specifying the pin number and flags, as defined |
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in <dt-bindings/interrupt-controller/irq.h> |
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- gpio-controller: |
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Usage: required |
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Value type: <none> |
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Definition: identifies this node as a gpio controller |
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- #gpio-cells: |
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Usage: required |
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Value type: <u32> |
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Definition: must be 2. Specifying the pin number and flags, as defined |
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in <dt-bindings/gpio/gpio.h> |
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- gpio-ranges: |
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Usage: required |
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Definition: see ../gpio/gpio.txt |
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- gpio-reserved-ranges: |
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Usage: optional |
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Definition: see ../gpio/gpio.txt |
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Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for |
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a general description of GPIO and interrupt bindings. |
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Please refer to pinctrl-bindings.txt in this directory for details of the |
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common pinctrl bindings used by client devices, including the meaning of the |
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phrase "pin configuration node". |
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The pin configuration nodes act as a container for an arbitrary number of |
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subnodes. Each of these subnodes represents some desired configuration for a |
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pin, a group, or a list of pins or groups. This configuration can include the |
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mux function to select on those pin(s)/group(s), and various pin configuration |
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parameters, such as pull-up, drive strength, etc. |
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PIN CONFIGURATION NODES: |
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The name of each subnode is not important; all subnodes should be enumerated |
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and processed purely based on their content. |
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Each subnode only affects those parameters that are explicitly listed. In |
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other words, a subnode that lists a mux function but no pin configuration |
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parameters implies no information about any pin configuration parameters. |
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Similarly, a pin subnode that describes a pullup parameter implies no |
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information about e.g. the mux function. |
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The following generic properties as defined in pinctrl-bindings.txt are valid |
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to specify in a pin configuration subnode: |
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- pins: |
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Usage: required |
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Value type: <string-array> |
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Definition: List of gpio pins affected by the properties specified in |
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this subnode. Valid pins are: |
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gpio0-gpio121, |
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sdc1_clk, |
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sdc1_cmd, |
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sdc1_data |
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sdc2_clk, |
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sdc2_cmd, |
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sdc2_data, |
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qdsd_cmd, |
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qdsd_data0, |
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qdsd_data1, |
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qdsd_data2, |
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qdsd_data3 |
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- function: |
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Usage: required |
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Value type: <string> |
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Definition: Specify the alternative function to be configured for the |
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specified pins. Functions are only valid for gpio pins. |
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Valid values are: |
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adsp_ext, alsp_int, atest_bbrx0, atest_bbrx1, atest_char, atest_char0, |
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atest_char1, atest_char2, atest_char3, atest_combodac, atest_gpsadc0, |
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atest_gpsadc1, atest_tsens, atest_wlan0, atest_wlan1, backlight_en, |
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bimc_dte0,bimc_dte1, blsp_i2c1, blsp_i2c2, blsp_i2c3, blsp_i2c4, |
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blsp_i2c5, blsp_i2c6, blsp_spi1, blsp_spi1_cs1, blsp_spi1_cs2, |
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blsp_spi1_cs3, blsp_spi2, blsp_spi2_cs1, blsp_spi2_cs2, blsp_spi2_cs3, |
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blsp_spi3, blsp_spi3_cs1, blsp_spi3_cs2, blsp_spi3_cs3, blsp_spi4, |
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blsp_spi5, blsp_spi6, blsp_uart1, blsp_uart2, blsp_uim1, blsp_uim2, |
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cam1_rst, cam1_standby, cam_mclk0, cam_mclk1, cci_async, cci_i2c, |
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cci_timer0, cci_timer1, cci_timer2, cdc_pdm0, codec_mad, dbg_out, |
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display_5v, dmic0_clk, dmic0_data, dsi_rst, ebi0_wrcdc, euro_us, |
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ext_lpass, flash_strobe, gcc_gp1_clk_a, gcc_gp1_clk_b, gcc_gp2_clk_a, |
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gcc_gp2_clk_b, gcc_gp3_clk_a, gcc_gp3_clk_b, gpio, gsm0_tx0, gsm0_tx1, |
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gsm1_tx0, gsm1_tx1, gyro_accl, kpsns0, kpsns1, kpsns2, ldo_en, |
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ldo_update, mag_int, mdp_vsync, modem_tsync, m_voc, nav_pps, nav_tsync, |
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pa_indicator, pbs0, pbs1, pbs2, pri_mi2s, pri_mi2s_ws, prng_rosc, |
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pwr_crypto_enabled_a, pwr_crypto_enabled_b, pwr_modem_enabled_a, |
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pwr_modem_enabled_b, pwr_nav_enabled_a, pwr_nav_enabled_b, |
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qdss_ctitrig_in_a0, qdss_ctitrig_in_a1, qdss_ctitrig_in_b0, |
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qdss_ctitrig_in_b1, qdss_ctitrig_out_a0, qdss_ctitrig_out_a1, |
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qdss_ctitrig_out_b0, qdss_ctitrig_out_b1, qdss_traceclk_a, |
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qdss_traceclk_b, qdss_tracectl_a, qdss_tracectl_b, qdss_tracedata_a, |
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qdss_tracedata_b, reset_n, sd_card, sd_write, sec_mi2s, smb_int, |
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ssbi_wtr0, ssbi_wtr1, uim1, uim2, uim3, uim_batt, wcss_bt, wcss_fm, |
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wcss_wlan, webcam1_rst |
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- bias-disable: |
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Usage: optional |
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Value type: <none> |
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Definition: The specified pins should be configured as no pull. |
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- bias-pull-down: |
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Usage: optional |
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Value type: <none> |
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Definition: The specified pins should be configured as pull down. |
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- bias-pull-up: |
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Usage: optional |
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Value type: <none> |
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Definition: The specified pins should be configured as pull up. |
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- output-high: |
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Usage: optional |
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Value type: <none> |
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Definition: The specified pins are configured in output mode, driven |
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high. |
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Not valid for sdc pins. |
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- output-low: |
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Usage: optional |
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Value type: <none> |
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Definition: The specified pins are configured in output mode, driven |
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low. |
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Not valid for sdc pins. |
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- drive-strength: |
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Usage: optional |
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Value type: <u32> |
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Definition: Selects the drive strength for the specified pins, in mA. |
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Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16 |
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Example: |
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tlmm: pinctrl@1000000 { |
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compatible = "qcom,msm8916-pinctrl"; |
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reg = <0x1000000 0x300000>; |
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interrupts = <0 208 0>; |
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gpio-controller; |
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#gpio-cells = <2>; |
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gpio-ranges = <&tlmm 0 0 122>; |
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interrupt-controller; |
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#interrupt-cells = <2>; |
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uart2: uart2-default { |
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mux { |
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pins = "gpio4", "gpio5"; |
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function = "blsp_uart2"; |
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}; |
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tx { |
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pins = "gpio4"; |
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drive-strength = <4>; |
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bias-disable; |
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}; |
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rx { |
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pins = "gpio5"; |
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drive-strength = <2>; |
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bias-pull-up; |
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}; |
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}; |
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};
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