From: Tero Kristo <t-kristo@ti.com>
To: <sboyd@kernel.org>, <mturquette@baylibre.com>,
<linux-clk@vger.kernel.org>, <devicetree@vger.kernel.org>,
<robh+dt@kernel.org>, <ssantosh@kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH 1/3] dt-bindings: clock: ti,sci-clk: Add support for parsing clock info from DT
Date: Tue, 8 Jan 2019 15:30:21 +0200 [thread overview]
Message-ID: <1546954223-9738-2-git-send-email-t-kristo@ti.com> (raw)
In-Reply-To: <1546954223-9738-1-git-send-email-t-kristo@ti.com>
By default, the available clock info is queried from firmware, which can
be quite a lengthy operation if there is a very large amount of clocks
available. Add option for parsing the used clocks from DT instead, and
only register these which can improve the boot time of the device quite
a lot.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
Documentation/devicetree/bindings/clock/ti,sci-clk.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.txt b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
index 4e59dc6..c757ae1 100644
--- a/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.txt
@@ -18,6 +18,13 @@ Required properties:
and clocks IDs for 66AK2G SoC are documented at
http://processors.wiki.ti.com/index.php/TISCI#66AK2G02_Data
+Optional properties:
+-------------------
+- ti,scan-clocks-from-dt: Scan clock tree info from DT. By default,
+ clocks are queried from firmware, which can be rather slow operation,
+ especially if there is a really large number of clocks available out
+ of which only a handful are ever used by kernel.
+
Examples:
--------
--
1.9.1
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2019-01-08 13:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-08 13:30 [PATCH 0/3] clk: keystone: a few TI sci-clk improvements Tero Kristo
2019-01-08 13:30 ` Tero Kristo [this message]
2019-01-21 21:04 ` [PATCH 1/3] dt-bindings: clock: ti,sci-clk: Add support for parsing clock info from DT Rob Herring
2019-01-22 7:33 ` Tero Kristo
2019-02-05 8:25 ` Tero Kristo
2019-02-06 17:47 ` Stephen Boyd
2019-02-07 8:59 ` Tero Kristo
2019-01-08 13:30 ` [PATCH 2/3] clk: keystone: sci-clk: add support from " Tero Kristo
2019-01-21 20:53 ` Rob Herring
2019-01-08 13:30 ` [PATCH 3/3] clk: keystone: sci-clk: use shorter names for clocks Tero Kristo
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