From: Simon Horman <horms+renesas@verge.net.au>
To: linux-renesas-soc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
Magnus Damm <magnus.damm@gmail.com>,
Yoshihiro Kaneko <ykaneko0929@gmail.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Takeshi Kihara <takeshi.kihara.df@renesas.com>,
Simon Horman <horms+renesas@verge.net.au>
Subject: [PATCH v2 1/2] arm64: dts: renesas: r8a77990: Add cpg reset for LVDS Interface
Date: Mon, 17 Jun 2019 10:37:03 +0200 [thread overview]
Message-ID: <20190617083704.3941-2-horms+renesas@verge.net.au> (raw)
In-Reply-To: <20190617083704.3941-1-horms+renesas@verge.net.au>
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
It is necessary to reset the LVDS Interface according to display on/off.
Therefore, this patch adds CPG reset properties in DU device node
for the R8A77990 SoC.
According to Laurent Pinchart, R-Car Gen3 reset is handled at the group
level so specifying one reset entry per group is sufficient. For this
reason <&cpg 724> is not listed as a reset for "du.1" as was the case in an
earlier revision of this patch.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
v2 [Simon Horman]
- only add one reset entry per group
v1 [Yoshihiro Kaneko]
v0 [Takeshi Kihara]
---
arch/arm64/boot/dts/renesas/r8a77990.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index b4318661f35e..84d1f58e73e7 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -1766,6 +1766,8 @@
clocks = <&cpg CPG_MOD 724>,
<&cpg CPG_MOD 723>;
clock-names = "du.0", "du.1";
+ resets = <&cpg 724>;
+ reset-names = "du.0";
vsps = <&vspd0 0 &vspd1 0>;
status = "disabled";
--
2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: Simon Horman <horms+renesas@verge.net.au>
To: linux-renesas-soc@vger.kernel.org
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>,
Yoshihiro Kaneko <ykaneko0929@gmail.com>,
Magnus Damm <magnus.damm@gmail.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Simon Horman <horms+renesas@verge.net.au>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] arm64: dts: renesas: r8a77990: Add cpg reset for LVDS Interface
Date: Mon, 17 Jun 2019 10:37:03 +0200 [thread overview]
Message-ID: <20190617083704.3941-2-horms+renesas@verge.net.au> (raw)
In-Reply-To: <20190617083704.3941-1-horms+renesas@verge.net.au>
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
It is necessary to reset the LVDS Interface according to display on/off.
Therefore, this patch adds CPG reset properties in DU device node
for the R8A77990 SoC.
According to Laurent Pinchart, R-Car Gen3 reset is handled at the group
level so specifying one reset entry per group is sufficient. For this
reason <&cpg 724> is not listed as a reset for "du.1" as was the case in an
earlier revision of this patch.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
v2 [Simon Horman]
- only add one reset entry per group
v1 [Yoshihiro Kaneko]
v0 [Takeshi Kihara]
---
arch/arm64/boot/dts/renesas/r8a77990.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index b4318661f35e..84d1f58e73e7 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -1766,6 +1766,8 @@
clocks = <&cpg CPG_MOD 724>,
<&cpg CPG_MOD 723>;
clock-names = "du.0", "du.1";
+ resets = <&cpg 724>;
+ reset-names = "du.0";
vsps = <&vspd0 0 &vspd1 0>;
status = "disabled";
--
2.11.0
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next prev parent reply other threads:[~2019-06-17 8:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-17 8:37 [PATCH v2 0/2] arm64: dts: renesas: r8a7799[05]: Add cpg reset for LVDS Interface Simon Horman
2019-06-17 8:37 ` Simon Horman
2019-06-17 8:37 ` Simon Horman [this message]
2019-06-17 8:37 ` [PATCH v2 1/2] arm64: dts: renesas: r8a77990: " Simon Horman
2019-06-17 8:43 ` Geert Uytterhoeven
2019-06-17 8:43 ` Geert Uytterhoeven
2019-06-18 10:44 ` Simon Horman
2019-06-18 10:44 ` Simon Horman
2019-06-18 11:19 ` Geert Uytterhoeven
2019-06-18 11:19 ` Geert Uytterhoeven
2019-06-17 8:37 ` [PATCH v2 2/2] arm64: dts: renesas: r8a77995: " Simon Horman
2019-06-17 8:37 ` Simon Horman
2019-06-17 8:43 ` Geert Uytterhoeven
2019-06-17 8:43 ` Geert Uytterhoeven
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