From bbc577cdaffb817bb983fe00b10d34bc3f3de52a Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 19 Sep 2023 06:21:18 +1000
Subject: drm/nouveau/i2c/tu102-: prepare for GSP-RM
Git-commit: a25a5d560dada2d2edec1891bf1a89c12d9808ad
Patch-mainline: v6.7-rc1
References: jsc#PED-3527 jsc#PED-5475 jsc#PED-6068 jsc#PED-6070 jsc#PED-6116 jsc#PED-6120 jsc#PED-5065 jsc#PED-5477 jsc#PED-5511 jsc#PED-6041 jsc#PED-6069 jsc#PED-6071
- disable I2C completely when GSP-RM detected
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-14-skeggsb@gmail.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c
index 46917eb600f9..049477511312 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c
@@ -24,6 +24,8 @@
#include "priv.h"
#include "pad.h"
+#include <subdev/gsp.h>
+
static void
gm200_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable)
{
@@ -44,5 +46,8 @@ int
gm200_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_i2c **pi2c)
{
+ if (nvkm_gsp_rm(device->gsp))
+ return -ENODEV;
+
return nvkm_i2c_new_(&gm200_i2c, device, type, inst, pi2c);
}
--
2.43.0