1Qualcomm MSM8960 TLMM block
2
3This binding describes the Top Level Mode Multiplexer block found in the
4MSM8960 platform.
5
6- compatible:
7	Usage: required
8	Value type: <string>
9	Definition: must be "qcom,msm8960-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
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
51Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
52a general description of GPIO and interrupt bindings.
53
54Please refer to pinctrl-bindings.txt in this directory for details of the
55common pinctrl bindings used by client devices, including the meaning of the
56phrase "pin configuration node".
57
58The pin configuration nodes act as a container for an arbitrary number of
59subnodes. Each of these subnodes represents some desired configuration for a
60pin, a group, or a list of pins or groups. This configuration can include the
61mux function to select on those pin(s)/group(s), and various pin configuration
62parameters, such as pull-up, drive strength, etc.
63
64
65PIN CONFIGURATION NODES:
66
67The name of each subnode is not important; all subnodes should be enumerated
68and processed purely based on their content.
69
70Each subnode only affects those parameters that are explicitly listed. In
71other words, a subnode that lists a mux function but no pin configuration
72parameters implies no information about any pin configuration parameters.
73Similarly, a pin subnode that describes a pullup parameter implies no
74information about e.g. the mux function.
75
76
77The following generic properties as defined in pinctrl-bindings.txt are valid
78to 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-gpio151,
86		    sdc1_clk,
87		    sdc1_cmd,
88		    sdc1_data
89		    sdc3_clk,
90		    sdc3_cmd,
91		    sdc3_data
92
93- function:
94	Usage: required
95	Value type: <string>
96	Definition: Specify the alternative function to be configured for the
97		    specified pins. Functions are only valid for gpio pins.
98		    Valid values are:
99		    audio_pcm, bt, cam_mclk0, cam_mclk1, cam_mclk2,
100		    codec_mic_i2s, codec_spkr_i2s, ext_gps, fm, gps_blanking,
101		    gps_pps_in, gps_pps_out, gp_clk_0a, gp_clk_0b, gp_clk_1a,
102		    gp_clk_1b, gp_clk_2a, gp_clk_2b, gp_mn, gp_pdm_0a,
103		    gp_pdm_0b, gp_pdm_1a, gp_pdm_1b, gp_pdm_2a, gp_pdm_2b, gpio,
104		    gsbi1, gsbi1_spi_cs1_n, gsbi1_spi_cs2a_n, gsbi1_spi_cs2b_n,
105		    gsbi1_spi_cs3_n, gsbi2, gsbi2_spi_cs1_n, gsbi2_spi_cs2_n,
106		    gsbi2_spi_cs3_n, gsbi3, gsbi4, gsbi4_3d_cam_i2c_l,
107		    gsbi4_3d_cam_i2c_r, gsbi5, gsbi5_3d_cam_i2c_l,
108		    gsbi5_3d_cam_i2c_r, gsbi6, gsbi7, gsbi8, gsbi9, gsbi10,
109		    gsbi11, gsbi11_spi_cs1a_n, gsbi11_spi_cs1b_n,
110		    gsbi11_spi_cs2a_n, gsbi11_spi_cs2b_n, gsbi11_spi_cs3_n,
111		    gsbi12, hdmi_cec, hdmi_ddc_clock, hdmi_ddc_data,
112		    hdmi_hot_plug_detect, hsic, mdp_vsync, mi2s, mic_i2s,
113		    pmb_clk, pmb_ext_ctrl, ps_hold, rpm_wdog, sdc2, sdc4, sdc5,
114		    slimbus1, slimbus2, spkr_i2s, ssbi1, ssbi2, ssbi_ext_gps,
115		    ssbi_pmic2, ssbi_qpa1, ssbi_ts, tsif1, tsif2, ts_eoc,
116		    usb_fs1, usb_fs1_oe, usb_fs1_oe_n, usb_fs2, usb_fs2_oe,
117		    usb_fs2_oe_n, vfe_camif_timer1_a, vfe_camif_timer1_b,
118		    vfe_camif_timer2, vfe_camif_timer3_a, vfe_camif_timer3_b,
119		    vfe_camif_timer4_a, vfe_camif_timer4_b, vfe_camif_timer4_c,
120		    vfe_camif_timer5_a, vfe_camif_timer5_b, vfe_camif_timer6_a,
121		    vfe_camif_timer6_b, vfe_camif_timer6_c, vfe_camif_timer7_a,
122		    vfe_camif_timer7_b, vfe_camif_timer7_c, wlan
123
124- bias-disable:
125	Usage: optional
126	Value type: <none>
127	Definition: The specified pins should be configured as no pull.
128
129- bias-pull-down:
130	Usage: optional
131	Value type: <none>
132	Definition: The specified pins should be configured as pull down.
133
134- bias-pull-up:
135	Usage: optional
136	Value type: <none>
137	Definition: The specified pins should be configured as pull up.
138
139- output-high:
140	Usage: optional
141	Value type: <none>
142	Definition: The specified pins are configured in output mode, driven
143		    high.
144		    Not valid for sdc pins.
145
146- output-low:
147	Usage: optional
148	Value type: <none>
149	Definition: The specified pins are configured in output mode, driven
150		    low.
151		    Not valid for sdc pins.
152
153- drive-strength:
154	Usage: optional
155	Value type: <u32>
156	Definition: Selects the drive strength for the specified pins, in mA.
157		    Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16
158
159Example:
160
161	msmgpio: pinctrl@800000 {
162		compatible = "qcom,msm8960-pinctrl";
163		reg = <0x800000 0x4000>;
164
165		gpio-controller;
166		#gpio-cells = <2>;
167		gpio-ranges = <&msmgpio 0 0 152>;
168		interrupt-controller;
169		#interrupt-cells = <2>;
170		interrupts = <0 16 0x4>;
171
172		gsbi8_uart: gsbi8-uart {
173			mux {
174				pins = "gpio34", "gpio35";
175				function = "gsbi8";
176			};
177
178			tx {
179				pins = "gpio34";
180				drive-strength = <4>;
181				bias-disable;
182			};
183
184			rx {
185				pins = "gpio35";
186				drive-strength = <2>;
187				bias-pull-up;
188			};
189		};
190	};
191