diff options
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 63abe4320ab4..b5b24d91bd50 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1022,16 +1022,18 @@ static void spi_res_release(struct spi_controller *ctlr, struct spi_message *mes } /*-------------------------------------------------------------------------*/ +#define spi_for_each_valid_cs(spi, idx) \ + for (idx = 0; idx < SPI_CS_CNT_MAX; idx++) \ + if (!(spi->cs_index_mask & BIT(idx))) {} else + static inline bool spi_is_last_cs(struct spi_device *spi) { u8 idx; bool last = false; - for (idx = 0; idx < SPI_CS_CNT_MAX; idx++) { - if (spi->cs_index_mask & BIT(idx)) { - if (spi->controller->last_cs[idx] == spi_get_chipselect(spi, idx)) - last = true; - } + spi_for_each_valid_cs(spi, idx) { + if (spi->controller->last_cs[idx] == spi_get_chipselect(spi, idx)) + last = true; } return last; } @@ -1095,8 +1097,8 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force) if (spi_is_csgpiod(spi)) { if (!(spi->mode & SPI_NO_CS)) { - for (idx = 0; idx < SPI_CS_CNT_MAX; idx++) { - if ((spi->cs_index_mask & BIT(idx)) && spi_get_csgpiod(spi, idx)) + spi_for_each_valid_cs(spi, idx) { + if (spi_get_csgpiod(spi, idx)) spi_toggle_csgpiod(spi, idx, enable, activate); } } |