[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1466414282-96691-3-git-send-email-andriy.shevchenko@linux.intel.com>
Date: Mon, 20 Jun 2016 12:17:53 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Bryan O'Donoghue <pure.logic@...us-software.ie>,
Peter Hurley <peter@...leysoftware.com>,
linux-serial@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
ismo.puustinen@...el.com,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v9 02/11] 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@...el.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
include/linux/dma/dw.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/linux/dma/dw.h b/include/linux/dma/dw.h
index f2e538a..ccfd0c3 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;
--
2.8.1
Powered by blists - more mailing lists