From: "Pali Rohár" <pali@kernel.org>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Andrew Lunn" <andrew@lunn.ch>,
"Gregory Clement" <gregory.clement@bootlin.com>,
"Sebastian Hesselbarth" <sebastian.hesselbarth@gmail.com>,
"Vladimir Vid" <vladimir.vid@sartura.hr>,
"Marek Behún" <kabel@kernel.org>,
linux-clk@vger.kernel.org, linux-serial@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [RESEND PATCH v5 4/6] dt-bindings: mvebu-uart: update information about UART clock
Date: Wed, 22 Sep 2021 12:54:31 +0200 [thread overview]
Message-ID: <20210922105433.11744-5-pali@kernel.org> (raw)
In-Reply-To: <20210922105433.11744-1-pali@kernel.org>
Device "marvell,armada-3700-uart" should use
"marvell,armada-3700-uart-clock" compatible clock.
Signed-off-by: Pali Rohár <pali@kernel.org>
---
Documentation/devicetree/bindings/serial/mvebu-uart.txt | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/mvebu-uart.txt b/Documentation/devicetree/bindings/serial/mvebu-uart.txt
index 2d0dbdf32d1d..a062bbca532c 100644
--- a/Documentation/devicetree/bindings/serial/mvebu-uart.txt
+++ b/Documentation/devicetree/bindings/serial/mvebu-uart.txt
@@ -14,7 +14,10 @@ Required properties:
is provided (possible only with the "marvell,armada-3700-uart"
compatible string for backward compatibility), it will only work
if the baudrate was initialized by the bootloader and no baudrate
- change will then be possible.
+ change will then be possible. When provided it should be UART1-clk
+ for standard variant of UART and UART2-clk for extended variant
+ of UART. TBG clock (with UART TBG divisors d1=d2=1) or xtal clock
+ should not be used and are supported only for backward compatibility.
- interrupts:
- Must contain three elements for the standard variant of the IP
(marvell,armada-3700-uart): "uart-sum", "uart-tx" and "uart-rx",
@@ -34,7 +37,7 @@ Example:
uart0: serial@12000 {
compatible = "marvell,armada-3700-uart";
reg = <0x12000 0x18>;
- clocks = <&xtalclk>;
+ clocks = <&uartclk 0>;
interrupts =
<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
@@ -45,7 +48,7 @@ Example:
uart1: serial@12200 {
compatible = "marvell,armada-3700-uart-ext";
reg = <0x12200 0x30>;
- clocks = <&xtalclk>;
+ clocks = <&uartclk 1>;
interrupts =
<GIC_SPI 30 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 31 IRQ_TYPE_EDGE_RISING>;
--
2.20.1
next prev parent reply other threads:[~2021-09-22 10:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-22 10:54 [RESEND PATCH v5 0/6] serial: mvebu-uart: Support for higher baudrates Pali Rohár
2021-09-22 10:54 ` [RESEND PATCH v5 1/6] math64: New DIV_U64_ROUND_CLOSEST helper Pali Rohár
2021-09-22 10:54 ` [RESEND PATCH v5 2/6] serial: mvebu-uart: implement UART clock driver for configuring UART base clock Pali Rohár
2021-09-22 10:54 ` [RESEND PATCH v5 3/6] dt-bindings: mvebu-uart: document DT bindings for marvell,armada-3700-uart-clock Pali Rohár
2021-09-27 20:17 ` Rob Herring
2021-09-27 20:34 ` Pali Rohár
2021-09-28 17:57 ` Rob Herring
2021-09-27 20:45 ` Pali Rohár
2021-09-28 17:55 ` Rob Herring
2021-09-22 10:54 ` Pali Rohár [this message]
2021-09-22 10:54 ` [RESEND PATCH v5 5/6] arm64: dts: marvell: armada-37xx: add device node for UART clock and use it Pali Rohár
2021-09-22 15:16 ` Gregory CLEMENT
2021-09-22 16:07 ` Pali Rohár
2021-09-22 10:54 ` [RESEND PATCH v5 6/6] serial: mvebu-uart: implement support for baudrates higher than 230400 Pali Rohár
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