From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Bryan O'Donoghue <pure.logic@nexus-software.ie>,
Peter Hurley <peter@hurleysoftware.com>,
linux-serial@vger.kernel.org, Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
ismo.puustinen@intel.com,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v10 04/11] dmaengine: dw: provide probe(), remove() stubs for users
Date: Fri, 12 Aug 2016 19:01:49 +0300 [thread overview]
Message-ID: <1471017716-44893-5-git-send-email-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <1471017716-44893-1-git-send-email-andriy.shevchenko@linux.intel.com>
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>
---
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
next prev parent reply other threads:[~2016-08-12 16:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-12 16:01 [PATCH v10 00/11] serial: 8250: split LPSS to 8250_lpss, enable DMA on Quark Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 01/11] dmaengine: dw: keep copy of custom slave config in dwc Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 02/11] dmaengine: dw: set polarity of handshake interface Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 03/11] dmaengine: dw: override LLP support if asked in platform data Andy Shevchenko
2016-08-16 13:21 ` Eugeniy Paltsev
2016-08-12 16:01 ` Andy Shevchenko [this message]
2016-08-12 16:01 ` [PATCH v10 05/11] serial: 8250_dma: switch to new dmaengine_terminate_* API Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 06/11] serial: 8250_dma: adjust DMA address of the UART Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 07/11] serial: 8250: enable AFE on ports where FIFO is 16 bytes Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 08/11] serial: 8250_lpss: split LPSS driver to separate module Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 09/11] serial: 8250_lpss: move Quark code from PCI driver Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 10/11] serial: 8250_lpss: enable MSI for Intel Quark Andy Shevchenko
2016-08-15 9:04 ` Bryan O'Donoghue
2016-08-15 9:35 ` Andy Shevchenko
2016-08-12 16:01 ` [PATCH v10 11/11] serial: 8250_lpss: enable DMA on Intel Quark UART Andy Shevchenko
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