nvidia团队，你好：
以下是pinmux中对IO A55（PR.01）、J55（PP.06）中的设置，但是在实际控制过程中，这两个pin脚只能到0.1V，其他使用到的IO使用相同配置拉高后可正常到1.8V，已经确认是Orin核心板IO直出就不够1.8V，与自定义载板电路无关，请问此两个pin有无特殊的地方？
soc_gpio56_pr1 {
nvidia,pins = "soc_gpio56_pr1";
nvidia,function = "rsvd0";
nvidia,pull = <TEGRA_PIN_PULL_UP>;
nvidia,tristate = <TEGRA_PIN_DISABLE>;
nvidia,enable-input = <TEGRA_PIN_DISABLE>;
// nvidia,io-high-voltage = <TEGRA_PIN_DISABLE>;
nvidia,lpdr = <TEGRA_PIN_DISABLE>;
};
soc_gpio25_pp6 {
nvidia,pins = "soc_gpio25_pp6";
nvidia,function = "vi0";
nvidia,pull = <TEGRA_PIN_PULL_UP>;
nvidia,tristate = <TEGRA_PIN_DISABLE>;
nvidia,enable-input = <TEGRA_PIN_DISABLE>;
// nvidia,io-high-voltage = <TEGRA_PIN_DISABLE>;
nvidia,lpdr = <TEGRA_PIN_DISABLE>;
};
Hi taylor_quan,
Are you using the devkit or custom board for AGX Orin?
What’s the Jetpack version in use?
Do you mean the issue specific to these 2 pins?
Have you also tried to control other pins?
Please run sudo cat /sys/kernel/debug/gpio to check if any driver is using them.
使用的是我们自定义载板；
R36.3.0；
也尝试了其他IO，比如E55，D54，E56，B58……这些使用一样的pinmux配置是能正常拉到1.8V的，只有这两个只能到0.1V；
查看了gpioinfo，没有别的驱动使用到这两个io
root@tegra-ubuntu:/home/smartsens/Documents/ds300_imgcapser# sudo cat /sys/kernel/debug/gpio
gpiochip1: GPIOs 316-347, parent: platform/c2f0000.gpio, tegra234-gpio-aon:
gpio-316 (PAA.00 )
gpio-317 (PAA.01 )
gpio-318 (PAA.02 )
gpio-319 (PAA.03 )
gpio-320 (PAA.04 )
gpio-321 (PAA.05 )
gpio-322 (PAA.06 )
gpio-323 (PAA.07 )
gpio-324 (PBB.00 )
gpio-325 (PBB.01 )
gpio-326 (PBB.02 )
gpio-327 (PBB.03 )
gpio-328 (PCC.00 )
gpio-329 (PCC.01 )
gpio-330 (PCC.02 )
gpio-331 (PCC.03 |spi1 CS0 ) out hi ACTIVE LOW
gpio-332 (PCC.04 )
gpio-333 (PCC.05 )
gpio-334 (PCC.06 )
gpio-335 (PCC.07 )
gpio-336 (PDD.00 )
gpio-337 (PDD.01 )
gpio-338 (PDD.02 )
gpio-339 (PEE.00 )
gpio-340 (PEE.01 )
gpio-341 (PEE.02 )
gpio-342 (PEE.03 )
gpio-343 (PEE.04 |Power ) in hi IRQ ACTIVE LOW
gpio-344 (PEE.05 )
gpio-345 (PEE.06 )
gpio-346 (PEE.07 )
gpio-347 (PGG.00 )
gpiochip0: GPIOs 348-511, parent: platform/2200000.gpio, tegra234-gpio:
gpio-348 (PA.00 |spi0 CS3 ) out hi ACTIVE LOW
gpio-349 (PA.01 |regulator-vdd-12v-pc) out lo ACTIVE LOW
gpio-350 (PA.02 )
gpio-351 (PA.03 )
gpio-352 (PA.04 )
gpio-353 (PA.05 )
gpio-354 (PA.06 )
gpio-355 (PA.07 )
gpio-356 (PB.00 )
gpio-357 (PC.00 )
gpio-358 (PC.01 )
gpio-359 (PC.02 )
gpio-360 (PC.03 )
gpio-361 (PC.04 )
gpio-362 (PC.05 )
gpio-363 (PC.06 )
gpio-364 (PC.07 )
gpio-365 (PD.00 )
gpio-366 (PD.01 )
gpio-367 (PD.02 )
gpio-368 (PD.03 )
gpio-369 (PE.00 )
gpio-370 (PE.01 )
gpio-371 (PE.02 )
gpio-372 (PE.03 )
gpio-373 (PE.04 |spi1 CS3 ) out hi ACTIVE LOW
gpio-374 (PE.05 )
gpio-375 (PE.06 )
gpio-376 (PE.07 )
gpio-377 (PF.00 )
gpio-378 (PF.01 )
gpio-379 (PF.02 )
gpio-380 (PF.03 |spi1 CS5 ) out hi ACTIVE LOW
gpio-381 (PF.04 )
gpio-382 (PF.05 )
gpio-383 (PG.00 |Force Recovery ) in hi IRQ ACTIVE LOW
gpio-384 (PG.01 )
gpio-385 (PG.02 |Suspend ) in hi IRQ ACTIVE LOW
gpio-386 (PG.03 )
gpio-387 (PG.04 )
gpio-388 (PG.05 )
gpio-389 (PG.06 )
gpio-390 (PG.07 |cd ) in hi IRQ ACTIVE LOW
gpio-391 (PH.00 )
gpio-392 (PH.01 )
gpio-393 (PH.02 )
gpio-394 (PH.03 |camera-control-outpu) out lo
gpio-395 (PH.04 |regulator-vdd-3v3-pc) out hi
gpio-396 (PH.05 )
gpio-397 (PH.06 |camera-control-outpu) out lo
gpio-398 (PH.07 |spi1 CS1 ) out hi ACTIVE LOW
gpio-399 (PI.00 )
gpio-400 (PI.01 )
gpio-401 (PI.02 )
gpio-402 (PI.03 )
gpio-403 (PI.04 )
gpio-404 (PI.05 )
gpio-405 (PI.06 )
gpio-406 (PJ.00 )
gpio-407 (PJ.01 )
gpio-408 (PJ.02 )
gpio-409 (PJ.03 )
gpio-410 (PJ.04 )
gpio-411 (PJ.05 )
gpio-412 (PK.00 )
gpio-413 (PK.01 )
gpio-414 (PK.02 )
gpio-415 (PK.03 )
gpio-416 (PK.04 )
gpio-417 (PK.05 )
gpio-418 (PK.06 )
gpio-419 (PK.07 )
gpio-420 (PL.00 )
gpio-421 (PL.01 )
gpio-422 (PL.02 )
gpio-423 (PL.03 )
gpio-424 (PM.00 )
gpio-425 (PM.01 )
gpio-426 (PM.02 )
gpio-427 (PM.03 )
gpio-428 (PM.04 |spi0 CS1 ) out hi ACTIVE LOW
gpio-429 (PM.05 )
gpio-430 (PM.06 )
gpio-431 (PM.07 )
gpio-432 (PN.00 )
gpio-433 (PN.01 )
gpio-434 (PN.02 )
gpio-435 (PN.03 )
gpio-436 (PN.04 )
gpio-437 (PN.05 )
gpio-438 (PN.06 )
gpio-439 (PN.07 )
gpio-440 (PP.00 )
gpio-441 (PP.01 )
gpio-442 (PP.02 )
gpio-443 (PP.03 )
gpio-444 (PP.04 )
gpio-445 (PP.05 )
gpio-446 (PP.06 )
gpio-447 (PP.07 )
gpio-448 (PQ.00 )
gpio-449 (PQ.01 )
gpio-450 (PQ.02 )
gpio-451 (PQ.03 )
gpio-452 (PQ.04 )
gpio-453 (PQ.05 )
gpio-454 (PQ.06 )
gpio-455 (PQ.07 )
gpio-456 (PR.00 )
gpio-457 (PR.01 )
gpio-458 (PR.02 )
gpio-459 (PR.03 )
gpio-460 (PR.04 )
gpio-461 (PR.05 )
gpio-462 (PX.00 )
gpio-463 (PX.01 )
gpio-464 (PX.02 )
gpio-465 (PX.03 )
gpio-466 (PX.04 )
gpio-467 (PX.05 )
gpio-468 (PX.06 )
gpio-469 (PX.07 )
gpio-470 (PY.00 )
gpio-471 (PY.01 )
gpio-472 (PY.02 )
gpio-473 (PY.03 )
gpio-474 (PY.04 |spi0 CS2 ) out hi ACTIVE LOW
gpio-475 (PY.05 )
gpio-476 (PY.06 )
gpio-477 (PY.07 )
gpio-478 (PZ.00 )
gpio-479 (PZ.01 |spi1 CS2 ) out hi ACTIVE LOW
gpio-480 (PZ.02 |spi1 CS4 ) out hi ACTIVE LOW
gpio-481 (PZ.03 )
gpio-482 (PZ.04 )
gpio-483 (PZ.05 )
gpio-484 (PZ.06 |spi0 CS0 ) out hi ACTIVE LOW
gpio-485 (PZ.07 )
gpio-486 (PAC.00 |camera-control-outpu) out lo
gpio-487 (PAC.01 |camera-control-outpu) out lo
gpio-488 (PAC.02 |phy_reset ) out hi
gpio-489 (PAC.03 )
gpio-490 (PAC.04 )
gpio-491 (PAC.05 )
gpio-492 (PAC.06 )
gpio-493 (PAC.07 )
gpio-494 (PAD.00 )
gpio-495 (PAD.01 )
gpio-496 (PAD.02 )
gpio-497 (PAD.03 )
gpio-498 (PAE.00 )
gpio-499 (PAE.01 )
gpio-500 (PAF.00 )
gpio-501 (PAF.01 )
gpio-502 (PAF.02 )
gpio-503 (PAF.03 )
gpio-504 (PAG.00 )
gpio-505 (PAG.01 )
gpio-506 (PAG.02 )
gpio-507 (PAG.03 )
gpio-508 (PAG.04 )
gpio-509 (PAG.05 )
gpio-510 (PAG.06 )
gpio-511 (PAG.07 )
How did you configure them in pinmux spreadsheet?
It seems they are configured as Input pin by default.
Trumany
8
Please check the carrier board schematic. There is 47k pull-up on both pins. A stronger pull-down is necessary to pull it low.
默认是配置为输入，我在BSP的pinmux dtsi中修改为了输出模式，但是输出高电平不到1.8V
也就是说这两个pin脚不光要配置为nvidia,pull = <TEGRA_PIN_PULL_UP>;而且需要在载板上也加上外围上拉和下拉，其他的pin脚需要外部上下拉么
Trumany
12
No if set to output.
Please try below setting which set to Drive 1 instead of Int PU.
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