linux-kernel - [PATCH 2/3] dw_dmac: use 'u32' for LLI structure members, not dma_addr

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Date:	Fri, 13 Jul 2012 11:09:33 +0300
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Viresh Kumar <viresh.linux@...il.com>,
	linux-kernel@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 2/3] dw_dmac: use 'u32' for LLI structure members, not dma_addr_t

Use 'u32' for the LLI structure members, which are defined by hardware to be
32-bit. dma_addr_t is much more vague about its actual size.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/dma/dw_dmac.c      |    7 ++-----
 drivers/dma/dw_dmac_regs.h |    6 +++---
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index db56ef4..3d061c6 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -416,11 +416,8 @@ static void dwc_scan_descriptors(struct dw_dma *dw, struct dw_dma_chan *dwc)
 static inline void dwc_dump_lli(struct dw_dma_chan *dwc, struct dw_lli *lli)
 {
 	dev_printk(KERN_CRIT, chan2dev(&dwc->chan),
-			"  desc: s0x%llx d0x%llx l0x%llx c0x%x:%x\n",
-			(unsigned long long)lli->sar,
-			(unsigned long long)lli->dar,
-			(unsigned long long)lli->llp,
-			lli->ctlhi, lli->ctllo);
+			"  desc: s0x%x d0x%x l0x%x c0x%x:%x\n",
+			lli->sar, lli->dar, lli->llp, lli->ctlhi, lli->ctllo);
 }
 
 static void dwc_handle_error(struct dw_dma *dw, struct dw_dma_chan *dwc)
diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h
index e248481..50830be 100644
--- a/drivers/dma/dw_dmac_regs.h
+++ b/drivers/dma/dw_dmac_regs.h
@@ -219,9 +219,9 @@ static inline struct dw_dma *to_dw_dma(struct dma_device *ddev)
 /* LLI == Linked List Item; a.k.a. DMA block descriptor */
 struct dw_lli {
 	/* values that are not changed by hardware */
-	dma_addr_t	sar;
-	dma_addr_t	dar;
-	dma_addr_t	llp;		/* chain to next lli */
+	u32		sar;
+	u32		dar;
+	u32		llp;		/* chain to next lli */
 	u32		ctllo;
 	/* values that may get written back: */
 	u32		ctlhi;
-- 
1.7.10.4

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