Linux-ARM-Kernel Archive on lore.kernel.org
 help / color / Atom feed
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com,
	Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	Stefan Wahren <stefan.wahren@i2se.com>,
	Eric Anholt <eric@anholt.net>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	wahrenst@gmx.net, linux-arm-kernel@lists.infradead.org,
	linux-rpi-kernel@lists.infradead.org
Subject: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D
Date: Tue,  3 Mar 2020 18:32:16 +0100
Message-ID: <20200303173217.3987-1-nsaenzjulienne@suse.de> (raw)

The register based driver turned out to be unstable, specially on RPi3a+
but not limited to it. While a fix is being worked on, we roll back to
using firmware based scheme.

Fixes: e1dc2b2e1bef ("ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---

See https://github.com/raspberrypi/linux/issues/3046 for more reference.
Note: I tested this on RPi3b, RPi3a+ and RPi2b.

 arch/arm/boot/dts/bcm2835-common.dtsi     |  1 -
 arch/arm/boot/dts/bcm2835-rpi-common.dtsi | 12 ++++++++++++
 arch/arm/boot/dts/bcm2835.dtsi            |  1 +
 arch/arm/boot/dts/bcm2836.dtsi            |  1 +
 arch/arm/boot/dts/bcm2837.dtsi            |  1 +
 5 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/bcm2835-rpi-common.dtsi

diff --git a/arch/arm/boot/dts/bcm2835-common.dtsi b/arch/arm/boot/dts/bcm2835-common.dtsi
index 2b1d9d4c0cde..4119271c979d 100644
--- a/arch/arm/boot/dts/bcm2835-common.dtsi
+++ b/arch/arm/boot/dts/bcm2835-common.dtsi
@@ -130,7 +130,6 @@ v3d: v3d@7ec00000 {
 			compatible = "brcm,bcm2835-v3d";
 			reg = <0x7ec00000 0x1000>;
 			interrupts = <1 10>;
-			power-domains = <&pm BCM2835_POWER_DOMAIN_GRAFX_V3D>;
 		};
 
 		vc4: gpu {
diff --git a/arch/arm/boot/dts/bcm2835-rpi-common.dtsi b/arch/arm/boot/dts/bcm2835-rpi-common.dtsi
new file mode 100644
index 000000000000..b78a57534611
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-common.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This include file covers the common peripherals and configuration between
+ * bcm2835, bcm2836 and bcm2837 implementations that interact with RPi's
+ * firmware interface.
+ */
+
+#include <dt-bindings/power/raspberrypi-power.h>
+
+&v3d {
+	power-domains = <&power RPI_POWER_DOMAIN_V3D>;
+};
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 53bf4579cc22..0549686134ea 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
 #include "bcm2835-common.dtsi"
+#include "bcm2835-rpi-common.dtsi"
 
 / {
 	compatible = "brcm,bcm2835";
diff --git a/arch/arm/boot/dts/bcm2836.dtsi b/arch/arm/boot/dts/bcm2836.dtsi
index 82d6c4662ae4..b390006aef79 100644
--- a/arch/arm/boot/dts/bcm2836.dtsi
+++ b/arch/arm/boot/dts/bcm2836.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
 #include "bcm2835-common.dtsi"
+#include "bcm2835-rpi-common.dtsi"
 
 / {
 	compatible = "brcm,bcm2836";
diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
index 9e95fee78e19..0199ec98cd61 100644
--- a/arch/arm/boot/dts/bcm2837.dtsi
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -1,5 +1,6 @@
 #include "bcm283x.dtsi"
 #include "bcm2835-common.dtsi"
+#include "bcm2835-rpi-common.dtsi"
 
 / {
 	compatible = "brcm,bcm2837";
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-03 17:32 Nicolas Saenz Julienne [this message]
2020-03-03 18:17 ` Stefan Wahren
2020-03-03 18:37   ` Nicolas Saenz Julienne
2020-03-03 19:24     ` Stefan Wahren
2020-03-05 10:44       ` Nicolas Saenz Julienne
2020-03-06 20:33         ` Stefan Wahren
2020-03-09 15:41           ` Stefan Wahren
2020-03-09 19:22             ` Nicolas Saenz Julienne
2020-03-13 13:59               ` Stefan Wahren
2020-03-15 19:16                 ` Stefan Wahren
2020-03-16 12:40                   ` Nicolas Saenz Julienne
2020-03-16 13:57                     ` Dave Stevenson
2020-03-20 14:43                       ` Nicolas Saenz Julienne
2020-03-23 14:56                       ` Maxime Ripard
2020-03-23 15:55                         ` Dave Stevenson
2020-03-23 18:48                           ` Stefan Wahren
2020-03-23 19:10                             ` Dave Stevenson
2020-03-26 12:24 ` Nicolas Saenz Julienne
2020-03-26 17:24   ` Stefan Wahren
2020-03-27  0:35     ` Florian Fainelli
2020-03-27 10:41       ` Nicolas Saenz Julienne
2020-03-27 11:24       ` Stefan Wahren
2020-03-27 12:58 ` Nicolas Saenz Julienne

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200303173217.3987-1-nsaenzjulienne@suse.de \
    --to=nsaenzjulienne@suse.de \
    --cc=bcm-kernel-feedback-list@broadcom.com \
    --cc=devicetree@vger.kernel.org \
    --cc=eric@anholt.net \
    --cc=f.fainelli@gmail.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rpi-kernel@lists.infradead.org \
    --cc=mark.rutland@arm.com \
    --cc=rjui@broadcom.com \
    --cc=robh+dt@kernel.org \
    --cc=sbranden@broadcom.com \
    --cc=stefan.wahren@i2se.com \
    --cc=wahrenst@gmx.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-ARM-Kernel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/0 linux-arm-kernel/git/0.git
	git clone --mirror https://lore.kernel.org/linux-arm-kernel/1 linux-arm-kernel/git/1.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-arm-kernel linux-arm-kernel/ https://lore.kernel.org/linux-arm-kernel \
		linux-arm-kernel@lists.infradead.org
	public-inbox-index linux-arm-kernel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-arm-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git