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This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
56 lines
1.7 KiB
Diff
56 lines
1.7 KiB
Diff
From 317f8659bba01b307cbe4e9902d4e3d333fd7164 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jonas.gorski@gmail.com>
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Date: Sun, 16 Jul 2017 12:39:17 +0200
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Subject: [PATCH V2 4/8] tty/bcm63xx_uart: allow naming clock in device tree
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Codify using a named clock for the refclk of the uart. This makes it
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easier if we might need to add a gating clock (like present on the
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BCM6345).
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Acked-by: Rob Herring <robh@kernel.org>
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Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
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---
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Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt | 6 ++++++
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drivers/tty/serial/bcm63xx_uart.c | 6 ++++--
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2 files changed, 10 insertions(+), 2 deletions(-)
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--- a/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt
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+++ b/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt
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@@ -11,6 +11,11 @@ Required properties:
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- clocks: Clock driving the hardware; used to figure out the baud rate
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divisor.
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+
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+Optional properties:
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+
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+- clock-names: Should be "refclk".
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+
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Example:
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uart0: serial@14e00520 {
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@@ -19,6 +24,7 @@ Example:
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interrupt-parent = <&periph_intc>;
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interrupts = <2>;
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clocks = <&periph_clk>;
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+ clock-names = "refclk";
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};
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clocks {
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--- a/drivers/tty/serial/bcm63xx_uart.c
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+++ b/drivers/tty/serial/bcm63xx_uart.c
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@@ -846,8 +846,10 @@ static int bcm_uart_probe(struct platfor
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if (!res_irq)
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return -ENODEV;
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- clk = pdev->dev.of_node ? of_clk_get(pdev->dev.of_node, 0) :
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- clk_get(&pdev->dev, "refclk");
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+ clk = clk_get(&pdev->dev, "refclk");
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+ if (IS_ERR(clk) && pdev->dev.of_node)
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+ clk = of_clk_get(pdev->dev.of_node, 0);
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+
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if (IS_ERR(clk))
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return -ENODEV;
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