From: Scott Ellis <scott@jumpnowtek.com>
To: spi-devel-general@lists.sourceforge.net
Cc: David Brownell <dbrownell@users.sourceforge.net>,
Grant Likely <grant.likely@secretlab.ca>,
Tony Lindgren <tony@atomide.com>,
Andrew Morton <akpm@linux-foundation.org>,
Roman Tereshonkov <roman.tereshonkov@nokia.com>,
linux-omap@vger.kernel.org,
Aaro Koskinen <Aaro.Koskinen@nokia.com>,
Kevin Hilman <khilman@deeprootsystems.com>
Subject: [PATCH 5/6] SPI omap2_mcspi.c: Use num chipselects from platform data
Date: Fri, 12 Mar 2010 10:22:09 -0500 [thread overview]
Message-ID: <1268407329.14445.54.camel@quad> (raw)
The platform data already has the number of chip select lines
for each McSPI module. No need to figure it out again in
probe().
Signed-off-by: Scott Ellis <scott@jumpnowtek.com>
drivers/spi/omap2_mcspi.c | 9 ++-------
1 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index cce23c5..cd9fdc2 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -1058,33 +1058,28 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
struct resource *r;
int status = 0, i;
const u8 *rxdma_id, *txdma_id;
- unsigned num_chipselect;
struct omap2_mcspi_platform_config *pdata;
switch (pdev->id) {
case 1:
rxdma_id = spi1_rxdma_id;
txdma_id = spi1_txdma_id;
- num_chipselect = 4;
break;
case 2:
rxdma_id = spi2_rxdma_id;
txdma_id = spi2_txdma_id;
- num_chipselect = 2;
break;
#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) \
|| defined(CONFIG_ARCH_OMAP4)
case 3:
rxdma_id = spi3_rxdma_id;
txdma_id = spi3_txdma_id;
- num_chipselect = 2;
break;
#endif
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
case 4:
rxdma_id = spi4_rxdma_id;
txdma_id = spi4_txdma_id;
- num_chipselect = 1;
break;
#endif
default:
@@ -1106,7 +1101,6 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
master->setup = omap2_mcspi_setup;
master->transfer = omap2_mcspi_transfer;
master->cleanup = omap2_mcspi_cleanup;
- master->num_chipselect = num_chipselect;
dev_set_drvdata(&pdev->dev, master);
@@ -1114,6 +1108,7 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
mcspi->master = master;
pdata = (struct omap2_mcspi_platform_config *)pdev->dev.platform_data;
mcspi->max_clk_div = pdata->max_clk_div;
+ master->num_chipselect = pdata->num_cs;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (r == NULL) {
@@ -1160,7 +1155,7 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
if (mcspi->dma_channels == NULL)
goto err3;
- for (i = 0; i < num_chipselect; i++) {
+ for (i = 0; i < master->num_chipselect; i++) {
mcspi->dma_channels[i].dma_rx_channel = -1;
mcspi->dma_channels[i].dma_rx_sync_dev = rxdma_id[i];
mcspi->dma_channels[i].dma_tx_channel = -1;
next reply other threads:[~2010-03-12 15:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-12 15:22 Scott Ellis [this message]
2010-05-24 15:14 ` [PATCH 5/6] SPI omap2_mcspi.c: Use num chipselects from platform data Scott Ellis
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