[PATCH] DMAENGINE: make sure we can always define platform data

[Linus Walleij]

If you try to compile platform data structs for the PL08X without
it being compiled in, symbol resoltion will fail on the filter
function when linking the kernel, so provide a dummy function.

Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxxxxxx>
---
Dan, this goes on top of the other stuff queued on top of the
PL08X driver merged for next. Feel free to squash this too if
you prefer.
---
 include/linux/amba/pl08x.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h
index 8435f4a..daee6d0 100644
--- a/include/linux/amba/pl08x.h
+++ b/include/linux/amba/pl08x.h
@@ -179,6 +179,13 @@ struct pl08x_platform_data {
 	void (*put_signal)(struct pl08x_dma_chan *);
 };
 
+#ifdef CONFIG_AMBA_PL08X
 bool pl08x_filter_id(struct dma_chan *chan, void *chan_id);
+#else
+static bool pl08x_filter_id(struct dma_chan *chan, void *chan_id)
+{
+	return false;
+}
+#endif
 
 #endif	/* AMBA_PL08X_H */
-- 
1.7.2.2

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