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From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Jon Hunter <jonathanh@nvidia.com>,
	linux-tegra@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH 3/6] ARM: tegra: Let the EMC hardware use the EMC clock
Date: Sun, 22 Dec 2019 12:39:18 +0100	[thread overview]
Message-ID: <20191222113921.1469372-4-thierry.reding@gmail.com> (raw)
In-Reply-To: <20191222113921.1469372-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@nvidia.com>

The EMC hardware block needs access to the EMC clock in order to scale
the external memory frequency. Add the clocks property so that drivers
for the EMC can acquire a reference to the EMC clock.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm/boot/dts/tegra124.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 413bfb981de8..a01092b6d26d 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -625,6 +625,8 @@ mc: memory-controller@70019000 {
 	emc: emc@7001b000 {
 		compatible = "nvidia,tegra124-emc";
 		reg = <0x0 0x7001b000 0x0 0x1000>;
+		clocks = <&tegra_car TEGRA124_CLK_EMC>;
+		clock-names = "emc";
 
 		nvidia,memory-controller = <&mc>;
 	};
-- 
2.24.1


  parent reply	other threads:[~2019-12-22 11:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-22 11:39 [PATCH 0/6] memory: tegra: Miscellaneous Tegra124 improvements Thierry Reding
2019-12-22 11:39 ` [PATCH 1/6] dt-bindings: memory-controller: Convert Tegra124 EMC to json-schema Thierry Reding
2020-01-08 15:35   ` Rob Herring
     [not found]   ` <20191222113921.1469372-2-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-01-13 18:03     ` Rob Herring
2020-01-13 18:03       ` Rob Herring
2019-12-22 11:39 ` [PATCH 2/6] memory: tegra: Refashion EMC debugfs interface on Tegra124 Thierry Reding
2019-12-22 11:39 ` Thierry Reding [this message]
2019-12-22 11:39 ` [PATCH 4/6] arm64: tegra: Let the EMC hardware use the EMC clock Thierry Reding
2019-12-22 11:39 ` [PATCH 5/6] ARM: tegra: Rename EMC on Tegra124 Thierry Reding
2019-12-22 11:39 ` [PATCH 6/6] arm64: tegra: Rename EMC on Tegra132 Thierry Reding

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