From: matthias.bgg@kernel.org
To: robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com,
p.zabel@pengutronix.de, airlied@linux.ie,
mturquette@baylibre.com, sboyd@codeaurora.org,
ulrich.hecht+renesas@gmail.com,
laurent.pinchart@ideasonboard.com, matthias.bgg@gmail.com
Cc: sean.wang@mediatek.com, sean.wang@kernel.org,
rdunlap@infradead.org, wens@csie.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-clk@vger.kernel.org,
devicetree@vger.kernel.org, Matthias Brugger <mbrugger@suse.com>
Subject: [PATCH v5 08/12] dt-bindings: mediatek: Change the binding for mmsys clocks
Date: Fri, 16 Nov 2018 13:54:45 +0100 [thread overview]
Message-ID: <20181116125449.23581-9-matthias.bgg@kernel.org> (raw)
In-Reply-To: <20181116125449.23581-1-matthias.bgg@kernel.org>
From: Matthias Brugger <mbrugger@suse.com>
On SoCs with no publical available HW or no working graphic stack
we change the devicetree binding for the mmsys clock part. This
way we don't need to register a platform device explicitly in the
drm driver. Instead we can create a mmsys child which invokes the
clock driver.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
.../bindings/arm/mediatek/mediatek,mmsys.txt | 21 ++++++++++++-------
.../display/mediatek/mediatek,disp.txt | 4 ++++
2 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
index 4468345f8b1a..d4e205981363 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
@@ -1,4 +1,4 @@
-Mediatek mmsys controller
+Mediatek mmsys clock controller
============================
The Mediatek mmsys controller provides various clocks to the system.
@@ -6,18 +6,25 @@ The Mediatek mmsys controller provides various clocks to the system.
Required Properties:
- compatible: Should be one of:
- - "mediatek,mt2712-mmsys", "syscon"
- - "mediatek,mt6797-mmsys", "syscon"
+ - "mediatek,mt2712-mmsys-clk", "syscon"
+ - "mediatek,mt6797-mmsys-clk", "syscon"
- #clock-cells: Must be 1
-The mmsys controller uses the common clk binding from
+The mmsys clock controller uses the common clk binding from
Documentation/devicetree/bindings/clock/clock-bindings.txt
The available clocks are defined in dt-bindings/clock/mt*-clk.h.
+It is a child of the mmsys block, see binding at:
+Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
Example:
-mmsys: clock-controller@14000000 {
- compatible = "mediatek,mt8173-mmsys", "syscon";
+mmsys: syscon@14000000 {
+ compatible = "mediatek,mt2712-mmsys", "syscon", "simple-mfd";
reg = <0 0x14000000 0 0x1000>;
- #clock-cells = <1>;
+
+ mmsys_clk: clock-controller@14000000 {
+ compatible = "mediatek,mt2712-mmsys-clk";
+ #clock-cells = <1>;
+ };
+
};
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
index 4b008d992398..38c708cb7e55 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
@@ -54,6 +54,10 @@ Required properties (all function blocks):
DPI controller nodes have multiple clock inputs. These are documented in
mediatek,dsi.txt and mediatek,dpi.txt, respectively.
+Some chips have a separate binding for the clock controller, which is a child node
+of the mmsys device, for more information see:
+Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt
+
Required properties (DMA function blocks):
- compatible: Should be one of
"mediatek,<chip>-disp-ovl"
--
2.19.1
next prev parent reply other threads:[~2018-11-16 12:56 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-16 12:54 [PATCH v5 00/12] arm/arm64: mediatek: Fix mmsys device probing matthias.bgg
2018-11-16 12:54 ` [PATCH v5 01/12] drm/mediatek: Use regmap for register access matthias.bgg
2018-11-16 12:54 ` [PATCH v5 02/12] clk: mediatek: mt2701-mmsys: switch to platform device probing matthias.bgg
2018-11-16 12:54 ` [PATCH v5 03/12] clk: mediatek: mt8173: switch mmsys " matthias.bgg
2019-10-31 4:17 ` Hsin-Yi Wang
2019-11-04 11:14 ` Matthias Brugger
2018-11-16 12:54 ` [PATCH v5 04/12] drm/mediatek: Add support for mmsys through a pdev matthias.bgg
2018-11-19 5:54 ` CK Hu
2018-11-16 12:54 ` [PATCH v5 05/12] drm: mediatek: Omit warning on probe defers matthias.bgg
2018-11-19 5:38 ` CK Hu
2018-11-19 9:26 ` Matthias Brugger
2018-11-20 4:05 ` CK Hu
2018-11-20 4:09 ` CK Hu
2018-11-20 8:26 ` Aw: Re: [PATCH v5 05/12] drm: mediatek Frank Wunderlich
2018-11-20 10:14 ` Matthias Brugger
2018-11-20 10:34 ` Aw: " Frank Wunderlich
2018-11-20 11:39 ` Matthias Brugger
2018-11-20 10:19 ` [PATCH v5 05/12] drm: mediatek: Omit warning on probe defers Matthias Brugger
2018-11-20 10:23 ` CK Hu
2018-11-16 12:54 ` [PATCH v5 06/12] drm/mediatek: update dt-bindings matthias.bgg
2018-11-16 23:06 ` Rob Herring
2018-11-16 12:54 ` [PATCH v5 07/12] dt-bindings: clock: mediatek: delete mmsys clocks matthias.bgg
2018-11-16 23:07 ` Rob Herring
2018-11-16 12:54 ` matthias.bgg [this message]
2018-11-16 23:15 ` [PATCH v5 08/12] dt-bindings: mediatek: Change the binding for " Rob Herring
2018-11-18 17:12 ` Matthias Brugger
2018-11-19 19:15 ` Rob Herring
2018-11-21 16:46 ` Stephen Boyd
2018-11-21 17:09 ` Matthias Brugger
2018-11-30 6:43 ` Stephen Boyd
2018-11-30 8:59 ` Matthias Brugger
2019-07-01 3:55 ` CK Hu
2019-07-04 9:08 ` Matthias Brugger
2019-07-04 15:33 ` Ulrich Hecht
2019-07-05 1:35 ` CK Hu
2019-07-05 10:13 ` Matthias Brugger
2018-11-16 12:54 ` [PATCH v5 09/12] arm64: dts: mt2712e: Use the new mmsys clock compatible matthias.bgg
2018-11-16 12:54 ` [PATCH v5 10/12] arm64: dts: mt6797: " matthias.bgg
2018-11-16 12:54 ` [PATCH v5 11/12] clk: mediatek: mt2712e: Probe with new compatible matthias.bgg
2018-11-16 12:54 ` [PATCH v5 12/12] clk: mediatek: mt6797: " matthias.bgg
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