Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Dmitry Osipenko <digetx@gmail.com>
To:     Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Hans Verkuil <hverkuil@xs4all.nl>,
        Nicolas Dufresne <nicolas@ndufresne.ca>,
        Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
        linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 5/8] media: staging: tegra-vde: Bump BSEV DMA timeout
Date:   Sun, 20 Feb 2022 23:46:20 +0300
Message-Id: <20220220204623.30107-6-digetx@gmail.com>
In-Reply-To: <20220220204623.30107-1-digetx@gmail.com>
References: <20220220204623.30107-1-digetx@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

BSEV DMA timeouts if VDE is downclocked by x10. Bump the timeout to allow
DMA to complete. We don't support freq scaling yet, this is just a minor
improvement which may become useful sometime later.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/staging/media/tegra-vde/h264.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/tegra-vde/h264.c b/drivers/staging/media/tegra-vde/h264.c
index a46c648a26c6..d8e5534e80c8 100644
--- a/drivers/staging/media/tegra-vde/h264.c
+++ b/drivers/staging/media/tegra-vde/h264.c
@@ -135,7 +135,7 @@ static int tegra_vde_wait_bsev(struct tegra_vde *vde, bool wait_dma)
 		return 0;
 
 	err = readl_relaxed_poll_timeout(vde->bsev + INTR_STATUS, value,
-					 !(value & BSE_DMA_BUSY), 1, 100);
+					 !(value & BSE_DMA_BUSY), 1, 1000);
 	if (err) {
 		dev_err(dev, "BSEV DMA timeout\n");
 		return err;
-- 
2.34.1