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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2016-08-17 19:20:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-08-31 16:13:29 +0200
commit19d82910c07173872bd2869f0077e290a7a466a6 (patch)
tree396c93fc9d356cf8f2fa648aac12ab6917cc9ab1 /include/linux/dma
parent5fb23e35cacffb7b99ed5b97a002ddb8c9144bb6 (diff)
dmaengine: dw: provide probe(), remove() stubs for users
Some users consider DMA optional, thus when driver is not compiled we shouldn't prevent compilation of the users. Add stubs for dw_dma_probe() and dw_dma_remove(). Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/dma')
-rw-r--r--include/linux/dma/dw.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/dma/dw.h b/include/linux/dma/dw.h
index f2e538aaddad..ccfd0c3777df 100644
--- a/include/linux/dma/dw.h
+++ b/include/linux/dma/dw.h
@@ -40,8 +40,13 @@ struct dw_dma_chip {
};
/* Export to the platform drivers */
+#if IS_ENABLED(CONFIG_DW_DMAC_CORE)
int dw_dma_probe(struct dw_dma_chip *chip);
int dw_dma_remove(struct dw_dma_chip *chip);
+#else
+static inline int dw_dma_probe(struct dw_dma_chip *chip) { return -ENODEV; }
+static inline int dw_dma_remove(struct dw_dma_chip *chip) { return 0; }
+#endif /* CONFIG_DW_DMAC_CORE */
/* DMA API extensions */
struct dw_desc;