Rockchip GPIO Number Calculator

Convert between Rockchip pin names (GPIO3_B5), Linux GPIO numbers (109), libgpiod chip/line (gpiochip3 13) and device-tree syntax (&gpio3 RK_PB5). Works for RK3588, RK3576, RK3568, RK3566, RK3399, RK3328, PX30 and RV-series SoCs.

Pin name

Linux GPIO number

Bank · port · pin

Linux GPIO109

libgpiodgpioset gpiochip3 13=1

Device tree<&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>

pinctrlrockchip,pins = <3 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;

sysfs (legacy)echo 109 > /sys/class/gpio/export

How the numbering works

Each bank has 32 lines split into ports A–D of 8 pins. Linux number = bank × 32 + port × 8 + pin (A=0, B=1, C=2, D=3). The libgpiod line offset is the same without the bank term. Read the full walkthrough in Configure GPIO on Rockchip.

Some SoCs don't bond out every line, and small parts may have fewer banks. Check your SoC's datasheet and the board schematic. Pin muxing and IO-domain voltage (1.8 V vs 3.3 V) still apply.

Full GPIO number table

GPIO0 gpiochip0

	0	1	2	3	4	5	6	7
A	0	1	2	3	4	5	6	7
B	8	9	10	11	12	13	14	15
C	16	17	18	19	20	21	22	23
D	24	25	26	27	28	29	30	31

GPIO1 gpiochip1

	0	1	2	3	4	5	6	7
A	32	33	34	35	36	37	38	39
B	40	41	42	43	44	45	46	47
C	48	49	50	51	52	53	54	55
D	56	57	58	59	60	61	62	63

GPIO2 gpiochip2

	0	1	2	3	4	5	6	7
A	64	65	66	67	68	69	70	71
B	72	73	74	75	76	77	78	79
C	80	81	82	83	84	85	86	87
D	88	89	90	91	92	93	94	95

GPIO3 gpiochip3

	0	1	2	3	4	5	6	7
A	96	97	98	99	100	101	102	103
B	104	105	106	107	108	109	110	111
C	112	113	114	115	116	117	118	119
D	120	121	122	123	124	125	126	127

GPIO4 gpiochip4

	0	1	2	3	4	5	6	7
A	128	129	130	131	132	133	134	135
B	136	137	138	139	140	141	142	143
C	144	145	146	147	148	149	150	151
D	152	153	154	155	156	157	158	159

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	0	1	2	3	4	5	6	7
A	32	33	34	35	36	37	38	39
B	40	41	42	43	44	45	46	47
C	48	49	50	51	52	53	54	55
D	56	57	58	59	60	61	62	63

	0	1	2	3	4	5	6	7
A	64	65	66	67	68	69	70	71
B	72	73	74	75	76	77	78	79
C	80	81	82	83	84	85	86	87
D	88	89	90	91	92	93	94	95

	0	1	2	3	4	5	6	7
A	96	97	98	99	100	101	102	103
B	104	105	106	107	108	109	110	111
C	112	113	114	115	116	117	118	119
D	120	121	122	123	124	125	126	127

	0	1	2	3	4	5	6	7
A	128	129	130	131	132	133	134	135
B	136	137	138	139	140	141	142	143
C	144	145	146	147	148	149	150	151
D	152	153	154	155	156	157	158	159

	0	1	2	3	4	5	6	7
A	32	33	34	35	36	37	38	39
B	40	41	42	43	44	45	46	47
C	48	49	50	51	52	53	54	55
D	56	57	58	59	60	61	62	63

	0	1	2	3	4	5	6	7
A	64	65	66	67	68	69	70	71
B	72	73	74	75	76	77	78	79
C	80	81	82	83	84	85	86	87
D	88	89	90	91	92	93	94	95

	0	1	2	3	4	5	6	7
A	96	97	98	99	100	101	102	103
B	104	105	106	107	108	109	110	111
C	112	113	114	115	116	117	118	119
D	120	121	122	123	124	125	126	127

	0	1	2	3	4	5	6	7
A	128	129	130	131	132	133	134	135
B	136	137	138	139	140	141	142	143
C	144	145	146	147	148	149	150	151
D	152	153	154	155	156	157	158	159

	0	1	2	3	4	5	6	7
A	32	33	34	35	36	37	38	39
B	40	41	42	43	44	45	46	47
C	48	49	50	51	52	53	54	55
D	56	57	58	59	60	61	62	63

	0	1	2	3	4	5	6	7
A	64	65	66	67	68	69	70	71
B	72	73	74	75	76	77	78	79
C	80	81	82	83	84	85	86	87
D	88	89	90	91	92	93	94	95

	0	1	2	3	4	5	6	7
A	96	97	98	99	100	101	102	103
B	104	105	106	107	108	109	110	111
C	112	113	114	115	116	117	118	119
D	120	121	122	123	124	125	126	127

	0	1	2	3	4	5	6	7
A	128	129	130	131	132	133	134	135
B	136	137	138	139	140	141	142	143
C	144	145	146	147	148	149	150	151
D	152	153	154	155	156	157	158	159