diff options
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index f18738ae95f8f9..ff75838c1b5dfa 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1063,10 +1063,14 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force) if (spi->mode & SPI_CS_HIGH) enable = !enable; - if (spi_is_csgpiod(spi)) { - if (!spi->controller->set_cs_timing && !activate) - spi_delay_exec(&spi->cs_hold, NULL); + /* + * Handle chip select delays for GPIO based CS or controllers without + * programmable chip select timing. + */ + if ((spi_is_csgpiod(spi) || !spi->controller->set_cs_timing) && !activate) + spi_delay_exec(&spi->cs_hold, NULL); + if (spi_is_csgpiod(spi)) { if (!(spi->mode & SPI_NO_CS)) { /* * Historically ACPI has no means of the GPIO polarity and @@ -1099,16 +1103,16 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force) if ((spi->controller->flags & SPI_CONTROLLER_GPIO_SS) && spi->controller->set_cs) spi->controller->set_cs(spi, !enable); - - if (!spi->controller->set_cs_timing) { - if (activate) - spi_delay_exec(&spi->cs_setup, NULL); - else - spi_delay_exec(&spi->cs_inactive, NULL); - } } else if (spi->controller->set_cs) { spi->controller->set_cs(spi, !enable); } + + if (spi_is_csgpiod(spi) || !spi->controller->set_cs_timing) { + if (activate) + spi_delay_exec(&spi->cs_setup, NULL); + else + spi_delay_exec(&spi->cs_inactive, NULL); + } } #ifdef CONFIG_HAS_DMA |