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Merge branch 'spi-4.17' into spi-4.18 for the merge window

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This commit is contained in:
Mark Brown 2018-06-04 11:51:12 +01:00
commit 16c10b3bf8
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GPG key ID: 24D68B725D5487D0
4 changed files with 35 additions and 12 deletions
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28
drivers/spi/spi-bcm-qspi.c
View file

@ -488,7 +488,7 @@ static int bcm_qspi_bspi_set_mode(struct bcm_qspi *qspi,
static void bcm_qspi_enable_bspi(struct bcm_qspi *qspi)
{
if (!has_bspi(qspi) || (qspi->bspi_enabled))
if (!has_bspi(qspi))
return;
qspi->bspi_enabled = 1;
@ -503,7 +503,7 @@ static void bcm_qspi_enable_bspi(struct bcm_qspi *qspi)
static void bcm_qspi_disable_bspi(struct bcm_qspi *qspi)
{
if (!has_bspi(qspi) || (!qspi->bspi_enabled))
if (!has_bspi(qspi))
return;
qspi->bspi_enabled = 0;
@ -517,16 +517,19 @@ static void bcm_qspi_disable_bspi(struct bcm_qspi *qspi)
static void bcm_qspi_chip_select(struct bcm_qspi *qspi, int cs)
{
u32 data = 0;
u32 rd = 0;
u32 wr = 0;
if (qspi->curr_cs == cs)
return;
if (qspi->base[CHIP_SELECT]) {
data = bcm_qspi_read(qspi, CHIP_SELECT, 0);
data = (data & ~0xff) | (1 << cs);
bcm_qspi_write(qspi, CHIP_SELECT, 0, data);
rd = bcm_qspi_read(qspi, CHIP_SELECT, 0);
wr = (rd & ~0xff) | (1 << cs);
if (rd == wr)
return;
bcm_qspi_write(qspi, CHIP_SELECT, 0, wr);
usleep_range(10, 20);
}
dev_dbg(&qspi->pdev->dev, "using cs:%d\n", cs);
qspi->curr_cs = cs;
}
@ -753,8 +756,13 @@ static int write_to_hw(struct bcm_qspi *qspi, struct spi_device *spi)
dev_dbg(&qspi->pdev->dev, "WR %04x\n", val);
}
mspi_cdram = MSPI_CDRAM_CONT_BIT;
mspi_cdram |= (~(1 << spi->chip_select) &
MSPI_CDRAM_PCS);
if (has_bspi(qspi))
mspi_cdram &= ~1;
else
mspi_cdram |= (~(1 << spi->chip_select) &
MSPI_CDRAM_PCS);
mspi_cdram |= ((tp.trans->bits_per_word <= 8) ? 0 :
MSPI_CDRAM_BITSE_BIT);

5
drivers/spi/spi-bcm2835aux.c
View file

@ -184,6 +184,11 @@ static irqreturn_t bcm2835aux_spi_interrupt(int irq, void *dev_id)
struct bcm2835aux_spi *bs = spi_master_get_devdata(master);
irqreturn_t ret = IRQ_NONE;
/* IRQ may be shared, so return if our interrupts are disabled */
if (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_CNTL1) &
(BCM2835_AUX_SPI_CNTL1_TXEMPTY | BCM2835_AUX_SPI_CNTL1_IDLE)))
return ret;
/* check if we have data to read */
while (bs->rx_len &&
(!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) &

8
drivers/spi/spi-cadence.c
View file

@ -313,6 +313,14 @@ static void cdns_spi_fill_tx_fifo(struct cdns_spi *xspi)
while ((trans_cnt < CDNS_SPI_FIFO_DEPTH) &&
(xspi->tx_bytes > 0)) {
/* When xspi in busy condition, bytes may send failed,
* then spi control did't work thoroughly, add one byte delay
*/
if (cdns_spi_read(xspi, CDNS_SPI_ISR) &
CDNS_SPI_IXR_TXFULL)
usleep_range(10, 20);
if (xspi->txbuf)
cdns_spi_write(xspi, CDNS_SPI_TXD, *xspi->txbuf++);
else

6
drivers/spi/spi-sh-msiof.c
View file

@ -567,14 +567,16 @@ static int sh_msiof_spi_setup(struct spi_device *spi)
/* Configure native chip select mode/polarity early */
clr = MDR1_SYNCMD_MASK;
set = MDR1_TRMD | TMDR1_PCON | MDR1_SYNCMD_SPI;
set = MDR1_SYNCMD_SPI;
if (spi->mode & SPI_CS_HIGH)
clr |= BIT(MDR1_SYNCAC_SHIFT);
else
set |= BIT(MDR1_SYNCAC_SHIFT);
pm_runtime_get_sync(&p->pdev->dev);
tmp = sh_msiof_read(p, TMDR1) & ~clr;
sh_msiof_write(p, TMDR1, tmp | set);
sh_msiof_write(p, TMDR1, tmp | set | MDR1_TRMD | TMDR1_PCON);
tmp = sh_msiof_read(p, RMDR1) & ~clr;
sh_msiof_write(p, RMDR1, tmp | set);
pm_runtime_put(&p->pdev->dev);
p->native_cs_high = spi->mode & SPI_CS_HIGH;
p->native_cs_inited = true;