[PATCH v4 2/4] OMAP: DMA: Introduce errata handling variable, and macro

[Peter Ujfalusi]

Use flags for errata handling.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
---
 arch/arm/plat-omap/dma.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 6914ccf..ae0ff64 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -146,6 +146,10 @@ static const u8 omap1_dma_irq[OMAP1_LOGICAL_DMA_CH_COUNT] = {
 	INT_1610_DMA_CH14, INT_1610_DMA_CH15, INT_DMA_LCD
 };
 
+/* Errata handling */
+static u16 dma_errata;
+#define IS_DMA_ERRATA(id)	(dma_errata & (id))
+
 static inline void disable_lnk(int lch);
 static void omap_disable_channel_irq(int lch);
 static inline void omap_enable_channel_irq(int lch);
@@ -2042,6 +2046,10 @@ void omap_dma_global_context_restore(void)
 
 /*----------------------------------------------------------------------------*/
 
+static void dma_errata_configure(void)
+{
+}
+
 static int __init omap_init_dma(void)
 {
 	unsigned long base;
@@ -2064,6 +2072,8 @@ static int __init omap_init_dma(void)
 		return -ENODEV;
 	}
 
+	dma_errata_configure();
+
 	omap_dma_base = ioremap(base, SZ_4K);
 	BUG_ON(!omap_dma_base);
 
-- 
1.7.3