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[28/49] spi: davinci: configure the invariable bits in spipc0 only once

Message ID 1289990661-30126-29-git-send-email-nsekhar@ti.com (mailing list archive)
State Awaiting Upstream
Headers show

Commit Message

Sekhar Nori Nov. 17, 2010, 10:44 a.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c
index 45cc1a7..6f279c5 100644
--- a/drivers/spi/davinci_spi.c
+++ b/drivers/spi/davinci_spi.c
@@ -536,9 +536,6 @@  static int davinci_spi_bufs_prep(struct spi_device *spi,
 	 * optimize for both flags staying cleared.
 	 */
 
-	op_mode = SPIPC0_DIFUN_MASK
-		| SPIPC0_DOFUN_MASK
-		| SPIPC0_CLKFUN_MASK;
 	if (!(spi->mode & SPI_NO_CS)) {
 		pdata = davinci_spi->pdata;
 		if (!pdata->chip_sel ||
@@ -886,6 +883,7 @@  static int davinci_spi_probe(struct platform_device *pdev)
 	resource_size_t	dma_tx_chan = SPI_NO_RESOURCE;
 	resource_size_t	dma_eventq = SPI_NO_RESOURCE;
 	int i = 0, ret = 0;
+	u32 spipc0;
 
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL) {
@@ -1028,6 +1026,10 @@  static int davinci_spi_probe(struct platform_device *pdev)
 	udelay(100);
 	iowrite32(1, davinci_spi->base + SPIGCR0);
 
+	/* Set up SPIPC0.  CS and ENA init is done in davinci_spi_bufs_prep */
+	spipc0 = SPIPC0_DIFUN_MASK | SPIPC0_DOFUN_MASK | SPIPC0_CLKFUN_MASK;
+	iowrite32(spipc0, davinci_spi->base + SPIPC0);
+
 	/* initialize chip selects */
 	if (pdata->chip_sel) {
 		for (i = 0; i < pdata->num_chipselect; i++) {