[PATCH v3 4/4] ARM: at91/dma: DMA controller registering with DT support
From: Grant Likely <hidden>
Date: 2011-10-13 02:27:28
Also in:
linux-devicetree, lkml
On Wed, Oct 12, 2011 at 06:57:14PM +0200, Nicolas Ferre wrote:
Device tree support on at91sam9g45 family SoC. Only call platform_device_register() if no dma-controller node is found in device tree. Signed-off-by: Nicolas Ferre <redacted>
Acked-by: Grant Likely <redacted>
quoted hunk ↗ jump to hunk
--- arch/arm/mach-at91/at91sam9g45_devices.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-)diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index c9b897f..b9888c5 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c@@ -64,7 +64,13 @@ static struct platform_device at_hdmac_device = { void __init at91_add_device_hdmac(void) { - platform_device_register(&at_hdmac_device); + struct device_node *of_node = + of_find_node_by_name(NULL, "dma-controller"); + + if (of_node) + of_node_put(of_node); + else + platform_device_register(&at_hdmac_device); } #else void __init at91_add_device_hdmac(void) {}-- 1.7.5.4