diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-05-24 18:22:29 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-05-25 14:49:09 -0700 |
| commit | 84a74690b616591b2f178bd9b08953433c66b620 (patch) | |
| tree | a7030d9f5e5df4174a811d4bede14058044a38bf /drivers | |
| parent | 73f65f7f6898bd88fe457f96d4dc702f746058bc (diff) | |
spi: tegra: fix fifo_depth to 32.
Slink controller have the fifo depth of 32 words in
rx and tx side. But some of places it was taken the
value as 4. Fixing this to 32 words.
Change-Id: I262127c59241ce75d4385464c21ee733a48b1475
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/104463
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Stephen Warren <swarren@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-tegra.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c index 070cc1581efd..67143178c125 100644 --- a/drivers/spi/spi-tegra.c +++ b/drivers/spi/spi-tegra.c @@ -144,7 +144,6 @@ #define DATA_DIR_TX (1 << 0) #define DATA_DIR_RX (1 << 1) -#define SPI_FIFO_DEPTH 32 #define SLINK_DMA_TIMEOUT (msecs_to_jiffies(1000)) @@ -169,7 +168,7 @@ static const unsigned long spi_tegra_req_sels[] = { RX_FIFO_FULL_COUNT_ZERO << 16) #define MAX_CHIP_SELECT 4 -#define SLINK_FIFO_DEPTH 4 +#define SLINK_FIFO_DEPTH 32 struct spi_tegra_data { struct spi_master *master; @@ -807,7 +806,7 @@ static void spi_tegra_start_transfer(struct spi_device *spi, spi_tegra_writel(tspi, command2, SLINK_COMMAND2); tspi->command2_reg = command2; - if (total_fifo_words > SPI_FIFO_DEPTH) + if (total_fifo_words > SLINK_FIFO_DEPTH) ret = spi_tegra_start_dma_based_transfer(tspi, t); else ret = spi_tegra_start_cpu_based_transfer(tspi, t); @@ -1158,7 +1157,7 @@ static irqreturn_t spi_tegra_isr_thread(int irq, void *context_data) /* Continue transfer in current message */ total_fifo_words = spi_tegra_calculate_curr_xfer_param(tspi->cur_spi, tspi, t); - if (total_fifo_words > SPI_FIFO_DEPTH) + if (total_fifo_words > SLINK_FIFO_DEPTH) err = spi_tegra_start_dma_based_transfer(tspi, t); else err = spi_tegra_start_cpu_based_transfer(tspi, t); |