]>
Commit | Line | Data |
---|---|---|
bb77f06d SV |
1 | Qualcomm MSM8916 TLMM block |
2 | ||
3 | This binding describes the Top Level Mode Multiplexer block found in the | |
4 | MSM8916 platform. | |
5 | ||
6 | - compatible: | |
7 | Usage: required | |
8 | Value type: <string> | |
9 | Definition: must be "qcom,msm8916-pinctrl" | |
10 | ||
11 | - reg: | |
12 | Usage: required | |
13 | Value type: <prop-encoded-array> | |
14 | Definition: the base address and size of the TLMM register space. | |
15 | ||
16 | - interrupts: | |
17 | Usage: required | |
18 | Value type: <prop-encoded-array> | |
19 | Definition: should specify the TLMM summary IRQ. | |
20 | ||
21 | - interrupt-controller: | |
22 | Usage: required | |
23 | Value type: <none> | |
24 | Definition: identifies this node as an interrupt controller | |
25 | ||
26 | - #interrupt-cells: | |
27 | Usage: required | |
28 | Value type: <u32> | |
29 | Definition: must be 2. Specifying the pin number and flags, as defined | |
30 | in <dt-bindings/interrupt-controller/irq.h> | |
31 | ||
32 | - gpio-controller: | |
33 | Usage: required | |
34 | Value type: <none> | |
35 | Definition: identifies this node as a gpio controller | |
36 | ||
37 | - #gpio-cells: | |
38 | Usage: required | |
39 | Value type: <u32> | |
40 | Definition: must be 2. Specifying the pin number and flags, as defined | |
41 | in <dt-bindings/gpio/gpio.h> | |
42 | ||
c1e802f6 CL |
43 | - gpio-ranges: |
44 | Usage: required | |
45 | Definition: see ../gpio/gpio.txt | |
46 | ||
47 | - gpio-reserved-ranges: | |
48 | Usage: optional | |
49 | Definition: see ../gpio/gpio.txt | |
50 | ||
bb77f06d SV |
51 | Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for |
52 | a general description of GPIO and interrupt bindings. | |
53 | ||
54 | Please refer to pinctrl-bindings.txt in this directory for details of the | |
55 | common pinctrl bindings used by client devices, including the meaning of the | |
56 | phrase "pin configuration node". | |
57 | ||
58 | The pin configuration nodes act as a container for an arbitrary number of | |
59 | subnodes. Each of these subnodes represents some desired configuration for a | |
60 | pin, a group, or a list of pins or groups. This configuration can include the | |
61 | mux function to select on those pin(s)/group(s), and various pin configuration | |
62 | parameters, such as pull-up, drive strength, etc. | |
63 | ||
64 | ||
65 | PIN CONFIGURATION NODES: | |
66 | ||
67 | The name of each subnode is not important; all subnodes should be enumerated | |
68 | and processed purely based on their content. | |
69 | ||
70 | Each subnode only affects those parameters that are explicitly listed. In | |
71 | other words, a subnode that lists a mux function but no pin configuration | |
72 | parameters implies no information about any pin configuration parameters. | |
73 | Similarly, a pin subnode that describes a pullup parameter implies no | |
74 | information about e.g. the mux function. | |
75 | ||
76 | ||
77 | The following generic properties as defined in pinctrl-bindings.txt are valid | |
78 | to specify in a pin configuration subnode: | |
79 | ||
80 | - pins: | |
81 | Usage: required | |
82 | Value type: <string-array> | |
83 | Definition: List of gpio pins affected by the properties specified in | |
84 | this subnode. Valid pins are: | |
85 | gpio0-gpio121, | |
86 | sdc1_clk, | |
87 | sdc1_cmd, | |
88 | sdc1_data | |
89 | sdc2_clk, | |
90 | sdc2_cmd, | |
91 | sdc2_data, | |
92 | qdsd_cmd, | |
93 | qdsd_data0, | |
94 | qdsd_data1, | |
95 | qdsd_data2, | |
96 | qdsd_data3 | |
97 | ||
98 | - function: | |
99 | Usage: required | |
100 | Value type: <string> | |
101 | Definition: Specify the alternative function to be configured for the | |
102 | specified pins. Functions are only valid for gpio pins. | |
103 | Valid values are: | |
104 | adsp_ext, alsp_int, atest_bbrx0, atest_bbrx1, atest_char, atest_char0, | |
105 | atest_char1, atest_char2, atest_char3, atest_combodac, atest_gpsadc0, | |
106 | atest_gpsadc1, atest_tsens, atest_wlan0, atest_wlan1, backlight_en, | |
107 | bimc_dte0,bimc_dte1, blsp_i2c1, blsp_i2c2, blsp_i2c3, blsp_i2c4, | |
108 | blsp_i2c5, blsp_i2c6, blsp_spi1, blsp_spi1_cs1, blsp_spi1_cs2, | |
109 | blsp_spi1_cs3, blsp_spi2, blsp_spi2_cs1, blsp_spi2_cs2, blsp_spi2_cs3, | |
110 | blsp_spi3, blsp_spi3_cs1, blsp_spi3_cs2, blsp_spi3_cs3, blsp_spi4, | |
111 | blsp_spi5, blsp_spi6, blsp_uart1, blsp_uart2, blsp_uim1, blsp_uim2, | |
112 | cam1_rst, cam1_standby, cam_mclk0, cam_mclk1, cci_async, cci_i2c, | |
113 | cci_timer0, cci_timer1, cci_timer2, cdc_pdm0, codec_mad, dbg_out, | |
114 | display_5v, dmic0_clk, dmic0_data, dsi_rst, ebi0_wrcdc, euro_us, | |
115 | ext_lpass, flash_strobe, gcc_gp1_clk_a, gcc_gp1_clk_b, gcc_gp2_clk_a, | |
116 | gcc_gp2_clk_b, gcc_gp3_clk_a, gcc_gp3_clk_b, gpio, gsm0_tx0, gsm0_tx1, | |
117 | gsm1_tx0, gsm1_tx1, gyro_accl, kpsns0, kpsns1, kpsns2, ldo_en, | |
118 | ldo_update, mag_int, mdp_vsync, modem_tsync, m_voc, nav_pps, nav_tsync, | |
119 | pa_indicator, pbs0, pbs1, pbs2, pri_mi2s, pri_mi2s_ws, prng_rosc, | |
120 | pwr_crypto_enabled_a, pwr_crypto_enabled_b, pwr_modem_enabled_a, | |
121 | pwr_modem_enabled_b, pwr_nav_enabled_a, pwr_nav_enabled_b, | |
122 | qdss_ctitrig_in_a0, qdss_ctitrig_in_a1, qdss_ctitrig_in_b0, | |
123 | qdss_ctitrig_in_b1, qdss_ctitrig_out_a0, qdss_ctitrig_out_a1, | |
124 | qdss_ctitrig_out_b0, qdss_ctitrig_out_b1, qdss_traceclk_a, | |
125 | qdss_traceclk_b, qdss_tracectl_a, qdss_tracectl_b, qdss_tracedata_a, | |
126 | qdss_tracedata_b, reset_n, sd_card, sd_write, sec_mi2s, smb_int, | |
127 | ssbi_wtr0, ssbi_wtr1, uim1, uim2, uim3, uim_batt, wcss_bt, wcss_fm, | |
128 | wcss_wlan, webcam1_rst | |
129 | ||
130 | - bias-disable: | |
131 | Usage: optional | |
132 | Value type: <none> | |
e6187953 | 133 | Definition: The specified pins should be configured as no pull. |
bb77f06d SV |
134 | |
135 | - bias-pull-down: | |
136 | Usage: optional | |
137 | Value type: <none> | |
e6187953 | 138 | Definition: The specified pins should be configured as pull down. |
bb77f06d SV |
139 | |
140 | - bias-pull-up: | |
141 | Usage: optional | |
142 | Value type: <none> | |
e6187953 | 143 | Definition: The specified pins should be configured as pull up. |
bb77f06d SV |
144 | |
145 | - output-high: | |
146 | Usage: optional | |
147 | Value type: <none> | |
148 | Definition: The specified pins are configured in output mode, driven | |
149 | high. | |
150 | Not valid for sdc pins. | |
151 | ||
152 | - output-low: | |
153 | Usage: optional | |
154 | Value type: <none> | |
155 | Definition: The specified pins are configured in output mode, driven | |
156 | low. | |
157 | Not valid for sdc pins. | |
158 | ||
159 | - drive-strength: | |
160 | Usage: optional | |
161 | Value type: <u32> | |
162 | Definition: Selects the drive strength for the specified pins, in mA. | |
163 | Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16 | |
164 | ||
165 | Example: | |
166 | ||
167 | tlmm: pinctrl@1000000 { | |
168 | compatible = "qcom,msm8916-pinctrl"; | |
169 | reg = <0x1000000 0x300000>; | |
170 | interrupts = <0 208 0>; | |
171 | gpio-controller; | |
172 | #gpio-cells = <2>; | |
c1e802f6 | 173 | gpio-ranges = <&tlmm 0 0 122>; |
bb77f06d SV |
174 | interrupt-controller; |
175 | #interrupt-cells = <2>; | |
176 | ||
177 | uart2: uart2-default { | |
178 | mux { | |
179 | pins = "gpio4", "gpio5"; | |
180 | function = "blsp_uart2"; | |
181 | }; | |
182 | ||
183 | tx { | |
184 | pins = "gpio4"; | |
185 | drive-strength = <4>; | |
186 | bias-disable; | |
187 | }; | |
188 | ||
189 | rx { | |
190 | pins = "gpio5"; | |
191 | drive-strength = <2>; | |
192 | bias-pull-up; | |
193 | }; | |
194 | }; | |
195 | }; |