From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
index 1399d92..9142764 100644
--- a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
@@ -23,6 +23,7 @@
*/
#include "priv.h"
+#include <core/option.h>
#include <core/notify.h>
static int
@@ -182,12 +183,43 @@
{ }
};
+static enum dcb_gpio_func_name power_checks[] = {
+ DCB_GPIO_THERM_EXT_POWER_EVENT,
+ DCB_GPIO_POWER_ALERT,
+ DCB_GPIO_EXT_POWER_LOW,
+};
+
static int
nvkm_gpio_init(struct nvkm_subdev *subdev)
{
struct nvkm_gpio *gpio = nvkm_gpio(subdev);
+ struct dcb_gpio_func func;
+ int ret;
+ int i;
+
if (dmi_check_system(gpio_reset_ids))
nvkm_gpio_reset(gpio, DCB_GPIO_UNUSED);
+
+ if (nvkm_boolopt(subdev->device->cfgopt, "NvPowerChecks", true)) {
+ for (i = 0; i < ARRAY_SIZE(power_checks); ++i) {
+ ret = nvkm_gpio_find(gpio, 0, power_checks[i],
+ DCB_GPIO_UNUSED, &func);
+ if (ret)
+ continue;
+
+ ret = nvkm_gpio_get(gpio, 0, func.func, func.line);
+ if (!ret)
+ continue;
+
+ nvkm_error(&gpio->subdev,
+ "GPU is missing power, check its power "
+ "cables. Boot with "
+ "nouveau.config=NvPowerChecks=0 to "
+ "disable.\n");
+ return -EINVAL;
+ }
+ }
+
return 0;
}
--
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