linux-kernel - [PATCH v7/v3 16/22] gpu: host1x: Allow reset to be missing

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Message-Id: <20220627142008.2072474-17-cyndis@kapsi.fi>
Date:   Mon, 27 Jun 2022 17:20:02 +0300
From:   Mikko Perttunen <cyndis@...si.fi>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Dmitry Osipenko <digetx@...il.com>
Cc:     Mikko Perttunen <mperttunen@...dia.com>,
        Robin Murphy <robin.murphy@....com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v7/v3 16/22] gpu: host1x: Allow reset to be missing

From: Mikko Perttunen <mperttunen@...dia.com>

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@...dia.com>
---
 drivers/gpu/host1x/dev.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 5a57165ab0f6..c28939850bf6 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;
 }
 
-- 
2.36.1