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tty: serial: bcm63xx: Add support for unnamed clock outputs from DT 

The original non-DT bcm63xx clk code ignores the struct device argument
and looks up a global clock name.  DT platforms, by contrast, often just
use a phandle to reference a clock node with no "clock-output-names"
property.  Modify the UART driver to support both schemes.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kevin Cernekee 2014-10-21 15:22:58 -07:00 committed by Greg Kroah-Hartman
parent c0ec3fd123
commit 048c1df7e2
1 changed files with 2 additions and 1 deletions
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3
drivers/tty/serial/bcm63xx_uart.c
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@ -824,7 +824,8 @@ static int bcm_uart_probe(struct platform_device *pdev)
if (!res_irq)
return -ENODEV;
clk = clk_get(&pdev->dev, "periph");
clk = pdev->dev.of_node ? of_clk_get(pdev->dev.of_node, 0) :
clk_get(&pdev->dev, "periph");
if (IS_ERR(clk))
return -ENODEV;