From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
Prashant Gaikwad <pgaikwad@nvidia.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1 1/3] clk: tegra30: Use 300MHz for video decoder by default
Date: Wed, 16 Dec 2020 00:11:48 +0300 [thread overview]
Message-ID: <20201215211150.21214-2-digetx@gmail.com> (raw)
In-Reply-To: <20201215211150.21214-1-digetx@gmail.com>
The 600MHz is a too high clock rate for some SoC versions for the video
decoder hardware and this may cause stability issues. Use 300MHz for the
video decoder by default, which is supported by all hardware versions.
Fixes: ed1a2459e20c ("clk: tegra: Add Tegra20/30 EMC clock implementation")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/clk/tegra/clk-tegra30.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index 37244a7e68c2..98923c4674bf 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -1248,7 +1248,7 @@ static struct tegra_clk_init_table init_table[] __initdata = {
{ TEGRA30_CLK_GR3D, TEGRA30_CLK_PLL_C, 300000000, 0 },
{ TEGRA30_CLK_GR3D2, TEGRA30_CLK_PLL_C, 300000000, 0 },
{ TEGRA30_CLK_PLL_U, TEGRA30_CLK_CLK_MAX, 480000000, 0 },
- { TEGRA30_CLK_VDE, TEGRA30_CLK_PLL_C, 600000000, 0 },
+ { TEGRA30_CLK_VDE, TEGRA30_CLK_PLL_C, 300000000, 0 },
{ TEGRA30_CLK_SPDIF_IN_SYNC, TEGRA30_CLK_CLK_MAX, 24000000, 0 },
{ TEGRA30_CLK_I2S0_SYNC, TEGRA30_CLK_CLK_MAX, 24000000, 0 },
{ TEGRA30_CLK_I2S1_SYNC, TEGRA30_CLK_CLK_MAX, 24000000, 0 },
--
2.29.2
next prev parent reply other threads:[~2020-12-15 21:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-15 21:11 [PATCH v1 0/3] Couple improvements for Tegra clk driver Dmitry Osipenko
2020-12-15 21:11 ` Dmitry Osipenko [this message]
2020-12-15 21:11 ` [PATCH v1 2/3] clk: tegra: Fix refcounting of gate clocks Dmitry Osipenko
2020-12-15 21:11 ` [PATCH v1 3/3] clk: tegra: Ensure that PLLU configuration is applied properly Dmitry Osipenko
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