diff options
| author | Jonas Gorski <jonas.gorski@gmail.com> | 2017-09-20 13:14:04 +0200 |
|---|---|---|
| committer | James Hogan <jhogan@kernel.org> | 2017-11-07 18:33:18 +0000 |
| commit | fa1e6a8aec47d5623f8361907f57e44f112a8f4f (patch) | |
| tree | 4ae6fe3bae3e94544aac57bee71ab7ab3492b9ac /drivers/tty/serial | |
| parent | 9a9cc02a6a558cf4d9ebeeda0832c5e2b8128f33 (diff) | |
| download | linux-fa1e6a8aec47d5623f8361907f57e44f112a8f4f.tar.bz2 | |
tty/bcm63xx_uart: allow naming clock in device tree
Codify using a named clock for the refclk of the uart. This makes it
easier if we might need to add a gating clock (like present on the
BCM6345).
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-mips@linux-mips.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-serial@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Patchwork: https://patchwork.linux-mips.org/patch/17328/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: James Hogan <jhogan@kernel.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/bcm63xx_uart.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index afcc0418831b..0385bd361f4f 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -846,8 +846,10 @@ static int bcm_uart_probe(struct platform_device *pdev) if (!res_irq) return -ENODEV; - clk = pdev->dev.of_node ? of_clk_get(pdev->dev.of_node, 0) : - clk_get(&pdev->dev, "refclk"); + clk = clk_get(&pdev->dev, "refclk"); + if (IS_ERR(clk) && pdev->dev.of_node) + clk = of_clk_get(pdev->dev.of_node, 0); + if (IS_ERR(clk)) return -ENODEV; |