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Subject[PATCH v3 4/4] ARM: at91/dma: DMA controller registering with DT support
Date
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 <nicolas.ferre@atmel.com>
---
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


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