dmaengine: edma: fix build without CONFIG_OF

During the edma rework, a build error was introduced for the
case that CONFIG_OF is disabled:

drivers/built-in.o: In function `edma_tc_set_pm_state':
:(.text+0x43bf0): undefined reference to `of_find_device_by_node'

As the edma_tc_set_pm_state() function does nothing in case
we are running without OF, this adds an IS_ENABLED() check
that turns the function into an empty stub then and avoids the
link error.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: ca304fa9bb76 ("ARM/dmaengine: edma: Public API to use private struct pointer")
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 6b03e4e84e6bf29b2226359e2e60bb43cd1474ce..c69d22c0b9ba78932883e8472cd5844c37221d44 100644 (file)
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -1565,7 +1565,7 @@ static void edma_tc_set_pm_state(struct edma_tc *tc, bool enable)
        struct platform_device *tc_pdev;
        int ret;
 
-       if (!tc)
+       if (!IS_ENABLED(CONFIG_OF) || !tc)
                return;
 
        tc_pdev = of_find_device_by_node(tc->node);