From: Mikko Perttunen <mperttunen@nvidia.com>
Date: Mon, 27 Jun 2022 14:20:02 +0000 (+0300)
Subject: gpu: host1x: Allow reset to be missing
X-Git-Tag: timers-urgent-2022-08-13~43^2~13^2~14
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ee8f894f3fb326ac17b243441b8cbbb6fb0d0932;p=users%2Fdwmw2%2Flinux.git

gpu: host1x: Allow reset to be missing

Host1x on Tegra234 does not have a software-controllable reset line.
As such, don't bail out if we don't find one in the device tree.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 5a57165ab0f6a..c28939850bf69 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -423,9 +423,6 @@ static int host1x_get_resets(struct host1x *host)
 		return err;
 	}
 
-	if (WARN_ON(!host->resets[1].rstc))
-		return -ENOENT;
-
 	return 0;
 }