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path: root/drivers/spi/pxa2xx_spi.c
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Diffstat (limited to 'drivers/spi/pxa2xx_spi.c')
-rw-r--r--drivers/spi/pxa2xx_spi.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index c1688c71f052..3f3c08c6ba4e 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -195,7 +195,7 @@ static void cs_deassert(struct driver_data *drv_data)
195 struct chip_data *chip = drv_data->cur_chip; 195 struct chip_data *chip = drv_data->cur_chip;
196 196
197 if (chip->cs_control) { 197 if (chip->cs_control) {
198 chip->cs_control(PXA2XX_CS_ASSERT); 198 chip->cs_control(PXA2XX_CS_DEASSERT);
199 return; 199 return;
200 } 200 }
201 201
@@ -213,7 +213,7 @@ static int flush(struct driver_data *drv_data)
213 while (read_SSSR(reg) & SSSR_RNE) { 213 while (read_SSSR(reg) & SSSR_RNE) {
214 read_SSDR(reg); 214 read_SSDR(reg);
215 } 215 }
216 } while ((read_SSSR(reg) & SSSR_BSY) && limit--); 216 } while ((read_SSSR(reg) & SSSR_BSY) && --limit);
217 write_SSSR(SSSR_ROR, reg); 217 write_SSSR(SSSR_ROR, reg);
218 218
219 return limit; 219 return limit;
@@ -484,7 +484,7 @@ static int wait_ssp_rx_stall(void const __iomem *ioaddr)
484{ 484{
485 unsigned long limit = loops_per_jiffy << 1; 485 unsigned long limit = loops_per_jiffy << 1;
486 486
487 while ((read_SSSR(ioaddr) & SSSR_BSY) && limit--) 487 while ((read_SSSR(ioaddr) & SSSR_BSY) && --limit)
488 cpu_relax(); 488 cpu_relax();
489 489
490 return limit; 490 return limit;
@@ -494,7 +494,7 @@ static int wait_dma_channel_stop(int channel)
494{ 494{
495 unsigned long limit = loops_per_jiffy << 1; 495 unsigned long limit = loops_per_jiffy << 1;
496 496
497 while (!(DCSR(channel) & DCSR_STOPSTATE) && limit--) 497 while (!(DCSR(channel) & DCSR_STOPSTATE) && --limit)
498 cpu_relax(); 498 cpu_relax();
499 499
500 return limit; 500 return limit;
@@ -1373,6 +1373,9 @@ static void cleanup(struct spi_device *spi)
1373{ 1373{
1374 struct chip_data *chip = spi_get_ctldata(spi); 1374 struct chip_data *chip = spi_get_ctldata(spi);
1375 1375
1376 if (!chip)
1377 return;
1378
1376 if (gpio_is_valid(chip->gpio_cs)) 1379 if (gpio_is_valid(chip->gpio_cs))
1377 gpio_free(chip->gpio_cs); 1380 gpio_free(chip->gpio_cs);
1378 1381
@@ -1700,6 +1703,13 @@ static int pxa2xx_spi_resume(struct platform_device *pdev)
1700 struct ssp_device *ssp = drv_data->ssp; 1703 struct ssp_device *ssp = drv_data->ssp;
1701 int status = 0; 1704 int status = 0;
1702 1705
1706 if (drv_data->rx_channel != -1)
1707 DRCMR(drv_data->ssp->drcmr_rx) =
1708 DRCMR_MAPVLD | drv_data->rx_channel;
1709 if (drv_data->tx_channel != -1)
1710 DRCMR(drv_data->ssp->drcmr_tx) =
1711 DRCMR_MAPVLD | drv_data->tx_channel;
1712
1703 /* Enable the SSP clock */ 1713 /* Enable the SSP clock */
1704 clk_enable(ssp->clk); 1714 clk_enable(ssp->clk);
1705 1715