drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout

Tegra TRM says worst-case reply time is 1216us, and this should fix some
spurious timeouts that have been popping up.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
index c8ab1b5..db7769c 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
@@ -118,10 +118,10 @@ g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
                if (retries)
                        udelay(400);
 
-               /* transaction request, wait up to 1ms for it to complete */
+               /* transaction request, wait up to 2ms for it to complete */
                nvkm_wr32(device, 0x00e4e4 + base, 0x00010000 | ctrl);
 
-               timeout = 1000;
+               timeout = 2000;
                do {
                        ctrl = nvkm_rd32(device, 0x00e4e4 + base);
                        udelay(1);

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
index 7ef6089..edb6148 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
@@ -118,10 +118,10 @@ gm200_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
                if (retries)
                        udelay(400);
 
-               /* transaction request, wait up to 1ms for it to complete */
+               /* transaction request, wait up to 2ms for it to complete */
                nvkm_wr32(device, 0x00d954 + base, 0x00010000 | ctrl);
 
-               timeout = 1000;
+               timeout = 2000;
                do {
                        ctrl = nvkm_rd32(device, 0x00d954 + base);
                        udelay(1);