diff options
-rw-r--r-- | drivers/spi/dw_spi.c | 17 | ||||
-rw-r--r-- | include/linux/spi/dw_spi.h | 2 |
2 files changed, 7 insertions, 12 deletions
diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c index 11fbbf6fb07b..56247853c298 100644 --- a/drivers/spi/dw_spi.c +++ b/drivers/spi/dw_spi.c | |||
@@ -181,10 +181,6 @@ static void flush(struct dw_spi *dws) | |||
181 | wait_till_not_busy(dws); | 181 | wait_till_not_busy(dws); |
182 | } | 182 | } |
183 | 183 | ||
184 | static void null_cs_control(u32 command) | ||
185 | { | ||
186 | } | ||
187 | |||
188 | static int null_writer(struct dw_spi *dws) | 184 | static int null_writer(struct dw_spi *dws) |
189 | { | 185 | { |
190 | u8 n_bytes = dws->n_bytes; | 186 | u8 n_bytes = dws->n_bytes; |
@@ -322,7 +318,7 @@ static void giveback(struct dw_spi *dws) | |||
322 | struct spi_transfer, | 318 | struct spi_transfer, |
323 | transfer_list); | 319 | transfer_list); |
324 | 320 | ||
325 | if (!last_transfer->cs_change) | 321 | if (!last_transfer->cs_change && dws->cs_control) |
326 | dws->cs_control(MRST_SPI_DEASSERT); | 322 | dws->cs_control(MRST_SPI_DEASSERT); |
327 | 323 | ||
328 | msg->state = NULL; | 324 | msg->state = NULL; |
@@ -549,13 +545,13 @@ static void pump_transfers(unsigned long data) | |||
549 | */ | 545 | */ |
550 | if (dws->cs_control) { | 546 | if (dws->cs_control) { |
551 | if (dws->rx && dws->tx) | 547 | if (dws->rx && dws->tx) |
552 | chip->tmode = 0x00; | 548 | chip->tmode = SPI_TMOD_TR; |
553 | else if (dws->rx) | 549 | else if (dws->rx) |
554 | chip->tmode = 0x02; | 550 | chip->tmode = SPI_TMOD_RO; |
555 | else | 551 | else |
556 | chip->tmode = 0x01; | 552 | chip->tmode = SPI_TMOD_TO; |
557 | 553 | ||
558 | cr0 &= ~(0x3 << SPI_MODE_OFFSET); | 554 | cr0 &= ~SPI_TMOD_MASK; |
559 | cr0 |= (chip->tmode << SPI_TMOD_OFFSET); | 555 | cr0 |= (chip->tmode << SPI_TMOD_OFFSET); |
560 | } | 556 | } |
561 | 557 | ||
@@ -704,9 +700,6 @@ static int dw_spi_setup(struct spi_device *spi) | |||
704 | chip = kzalloc(sizeof(struct chip_data), GFP_KERNEL); | 700 | chip = kzalloc(sizeof(struct chip_data), GFP_KERNEL); |
705 | if (!chip) | 701 | if (!chip) |
706 | return -ENOMEM; | 702 | return -ENOMEM; |
707 | |||
708 | chip->cs_control = null_cs_control; | ||
709 | chip->enable_dma = 0; | ||
710 | } | 703 | } |
711 | 704 | ||
712 | /* | 705 | /* |
diff --git a/include/linux/spi/dw_spi.h b/include/linux/spi/dw_spi.h index cc813f95a2f2..c91302f3a257 100644 --- a/include/linux/spi/dw_spi.h +++ b/include/linux/spi/dw_spi.h | |||
@@ -14,7 +14,9 @@ | |||
14 | #define SPI_MODE_OFFSET 6 | 14 | #define SPI_MODE_OFFSET 6 |
15 | #define SPI_SCPH_OFFSET 6 | 15 | #define SPI_SCPH_OFFSET 6 |
16 | #define SPI_SCOL_OFFSET 7 | 16 | #define SPI_SCOL_OFFSET 7 |
17 | |||
17 | #define SPI_TMOD_OFFSET 8 | 18 | #define SPI_TMOD_OFFSET 8 |
19 | #define SPI_TMOD_MASK (0x3 << SPI_TMOD_OFFSET) | ||
18 | #define SPI_TMOD_TR 0x0 /* xmit & recv */ | 20 | #define SPI_TMOD_TR 0x0 /* xmit & recv */ |
19 | #define SPI_TMOD_TO 0x1 /* xmit only */ | 21 | #define SPI_TMOD_TO 0x1 /* xmit only */ |
20 | #define SPI_TMOD_RO 0x2 /* recv only */ | 22 | #define SPI_TMOD_RO 0x2 /* recv only */ |