From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: f.fainelli@gmail.com, gregkh@linuxfoundation.org,
robh@kernel.org, wahrenst@gmx.net, p.zabel@pengutronix.de,
andy.shevchenko@gmail.com
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
bcm-kernel-feedback-list@broadcom.com, tim.gover@raspberrypi.org,
linux-pci@vger.kernel.org, helgaas@kernel.org,
mathias.nyman@linux.intel.com, lorenzo.pieralisi@arm.com,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Subject: [PATCH v5 1/9] dt-bindings: reset: Add a binding for the RPi Firmware reset controller
Date: Mon, 29 Jun 2020 18:18:37 +0200 [thread overview]
Message-ID: <20200629161845.6021-2-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20200629161845.6021-1-nsaenzjulienne@suse.de>
The firmware running on the RPi VideoCore can be used to reset and
initialize HW controlled by the firmware.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
Changes since v2:
- Add include file for reset IDs
Changes since v1:
- Correct cells binding as per Florian's comment
- Change compatible string to be more generic
.../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 21 +++++++++++++++++++
.../reset/raspberrypi,firmware-reset.h | 13 ++++++++++++
2 files changed, 34 insertions(+)
create mode 100644 include/dt-bindings/reset/raspberrypi,firmware-reset.h
diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
index b48ed875eb8e..23a885af3a28 100644
--- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
@@ -39,6 +39,22 @@ properties:
- compatible
- "#clock-cells"
+ reset:
+ type: object
+
+ properties:
+ compatible:
+ const: raspberrypi,firmware-reset
+
+ "#reset-cells":
+ const: 1
+ description: >
+ The argument is the ID of the firmware reset line to affect.
+
+ required:
+ - compatible
+ - "#reset-cells"
+
additionalProperties: false
required:
@@ -55,5 +71,10 @@ examples:
compatible = "raspberrypi,firmware-clocks";
#clock-cells = <1>;
};
+
+ reset: reset {
+ compatible = "raspberrypi,firmware-reset";
+ #reset-cells = <1>;
+ };
};
...
diff --git a/include/dt-bindings/reset/raspberrypi,firmware-reset.h b/include/dt-bindings/reset/raspberrypi,firmware-reset.h
new file mode 100644
index 000000000000..1a4f4c792723
--- /dev/null
+++ b/include/dt-bindings/reset/raspberrypi,firmware-reset.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2020 Nicolas Saenz Julienne
+ * Author: Nicolas Saenz Julienne <nsaenzjulienne@suse.com>
+ */
+
+#ifndef _DT_BINDINGS_RASPBERRYPI_FIRMWARE_RESET_H
+#define _DT_BINDINGS_RASPBERRYPI_FIRMWARE_RESET_H
+
+#define RASPBERRYPI_FIRMWARE_RESET_ID_USB 0
+#define RASPBERRYPI_FIRMWARE_RESET_NUM_IDS 1
+
+#endif
--
2.27.0
next prev parent reply other threads:[~2020-06-29 19:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-29 16:18 [PATCH v5 0/9] Raspberry Pi 4 USB firmware initialization rework Nicolas Saenz Julienne
2020-06-29 16:18 ` Nicolas Saenz Julienne [this message]
2020-06-29 16:18 ` [PATCH v5 2/9] reset: Add Raspberry Pi 4 firmware reset controller Nicolas Saenz Julienne
2020-06-29 16:18 ` [PATCH v5 3/9] ARM: dts: bcm2711: Add firmware usb reset node Nicolas Saenz Julienne
2020-06-29 16:18 ` [PATCH v5 4/9] ARM: dts: bcm2711: Add reset controller to xHCI node Nicolas Saenz Julienne
2020-06-29 16:26 ` Florian Fainelli
2020-06-29 16:18 ` [PATCH v5 5/9] usb: xhci-pci: Add support for reset controllers Nicolas Saenz Julienne
2020-06-29 16:26 ` Florian Fainelli
2020-06-29 16:18 ` [PATCH v5 6/9] Revert "USB: pci-quirks: Add Raspberry Pi 4 quirk" Nicolas Saenz Julienne
2020-06-29 16:18 ` [PATCH v5 7/9] usb: host: pci-quirks: Bypass xHCI quirks for Raspberry Pi 4 Nicolas Saenz Julienne
2020-06-29 16:18 ` [PATCH v5 8/9] Revert "firmware: raspberrypi: Introduce vl805 init routine" Nicolas Saenz Julienne
2020-06-29 16:18 ` [PATCH v5 9/9] Revert "PCI: brcmstb: Wait for Raspberry Pi's firmware when present" Nicolas Saenz Julienne
2020-08-14 10:15 ` Lorenzo Pieralisi
2020-08-13 10:01 ` [PATCH v5 0/9] Raspberry Pi 4 USB firmware initialization rework Nicolas Saenz Julienne
2020-08-13 19:17 ` Florian Fainelli
2020-08-14 6:11 ` Greg KH
2020-08-14 10:04 ` Nicolas Saenz Julienne
2020-08-18 11:03 ` Greg KH
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