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spi: dw: Update Rx sample delay in the config function

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Rx sample delay can be SPI device specific, and should be synchronously
initialized with the rest of the communication and peripheral device
related controller setups. So let's move the Rx-sample delay setup into
the DW APB SSI configuration update method.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20201007235511.4935-7-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Serge Semin 2020-10-08 02:54:55 +03:00 committed by Mark Brown
parent c449ad7425
commit 2613d2bfbe
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 7 deletions
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13
drivers/spi/spi-dw-core.c
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@ -294,13 +294,18 @@ static void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
spi_set_clk(dws, clk_div);
dws->current_freq = speed_hz;
}
/* Update RX sample delay if required */
if (dws->cur_rx_sample_dly != chip->rx_sample_dly) {
dw_writel(dws, DW_SPI_RX_SAMPLE_DLY, chip->rx_sample_dly);
dws->cur_rx_sample_dly = chip->rx_sample_dly;
}
}
static int dw_spi_transfer_one(struct spi_controller *master,
struct spi_device *spi, struct spi_transfer *transfer)
{
struct dw_spi *dws = spi_controller_get_devdata(master);
struct chip_data *chip = spi_get_ctldata(spi);
u8 imask = 0;
u16 txlevel = 0;
int ret;
@ -326,12 +331,6 @@ static int dw_spi_transfer_one(struct spi_controller *master,
if (master->can_dma && master->can_dma(master, spi, transfer))
dws->dma_mapped = master->cur_msg_mapped;
/* Update RX sample delay if required */
if (dws->cur_rx_sample_dly != chip->rx_sample_dly) {
dw_writel(dws, DW_SPI_RX_SAMPLE_DLY, chip->rx_sample_dly);
dws->cur_rx_sample_dly = chip->rx_sample_dly;
}
/* For poll mode just disable all interrupts */
spi_mask_intr(dws, 0xff);