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From: Huang Shijie <b32955@freescale.com>
To: <dwmw2@infradead.org>
Cc: Huang Shijie <b32955@freescale.com>,
	linux-mtd@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, dedekind1@gmail.com
Subject: [PATCH 2/4] mtd: gpmi: use DMA channel 0 for all the nand chips
Date: Fri, 14 Jun 2013 16:06:23 +0800	[thread overview]
Message-ID: <1371197185-27491-3-git-send-email-b32955@freescale.com> (raw)
In-Reply-To: <1371197185-27491-1-git-send-email-b32955@freescale.com>

We only have one DMA channel : the channel 0.
Use DMA channel 0 to access all the nand chips.

Signed-off-by: Huang Shijie <b32955@freescale.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 25ecfa1..036e5e4 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -226,9 +226,8 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this)
 
 struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)
 {
-	int chipnr = this->current_chip;
-
-	return this->dma_chans[chipnr];
+	/* We use the DMA channel 0 to access all the nand chips. */
+	return this->dma_chans[0];
 }
 
 /* Can we use the upper's buffer directly for DMA? */
-- 
1.7.1

WARNING: multiple messages have this Message-ID (diff)
From: b32955@freescale.com (Huang Shijie)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/4] mtd: gpmi: use DMA channel 0 for all the nand chips
Date: Fri, 14 Jun 2013 16:06:23 +0800	[thread overview]
Message-ID: <1371197185-27491-3-git-send-email-b32955@freescale.com> (raw)
In-Reply-To: <1371197185-27491-1-git-send-email-b32955@freescale.com>

We only have one DMA channel : the channel 0.
Use DMA channel 0 to access all the nand chips.

Signed-off-by: Huang Shijie <b32955@freescale.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 25ecfa1..036e5e4 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -226,9 +226,8 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this)
 
 struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)
 {
-	int chipnr = this->current_chip;
-
-	return this->dma_chans[chipnr];
+	/* We use the DMA channel 0 to access all the nand chips. */
+	return this->dma_chans[0];
 }
 
 /* Can we use the upper's buffer directly for DMA? */
-- 
1.7.1

  parent reply	other threads:[~2013-06-14  8:06 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-14  8:06 [PATCH 0/4] mtd: gpmi: support two nand chips at most Huang Shijie
2013-06-14  8:06 ` Huang Shijie
2013-06-14  8:06 ` [PATCH 1/4] mtd: gpmi: decouple the chip select from the DMA channel Huang Shijie
2013-06-14  8:06   ` Huang Shijie
2013-06-14  8:06 ` Huang Shijie [this message]
2013-06-14  8:06   ` [PATCH 2/4] mtd: gpmi: use DMA channel 0 for all the nand chips Huang Shijie
2013-06-14  8:06 ` [PATCH 3/4] mtd: gpmi: scan two " Huang Shijie
2013-06-14  8:06   ` Huang Shijie
2013-06-14  8:06 ` [PATCH 4/4] mtd: gpmi: imx6: fix the wrong method for checking ready/busy Huang Shijie
2013-06-14  8:06   ` Huang Shijie
2013-08-11  6:09 ` [PATCH 0/4] mtd: gpmi: support two nand chips at most Brian Norris
2013-08-11  6:09   ` Brian Norris
2013-08-11 19:52   ` Huang Shijie
2013-08-11 19:52     ` Huang Shijie

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