diff options
| -rw-r--r-- | drivers/spi/spi-mem.c | 6 | ||||
| -rw-r--r-- | include/linux/spi/spi-mem.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index 12299ce89a1c..96374afd0193 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -191,6 +191,12 @@ bool spi_mem_default_supports_op(struct spi_mem *mem, op->max_freq < mem->spi->controller->min_speed_hz) return false; + if (op->max_freq && + op->max_freq < mem->spi->max_speed_hz) { + if (!spi_mem_controller_is_capable(ctlr, per_op_freq)) + return false; + } + return spi_mem_check_buswidth(mem, op); } EXPORT_SYMBOL_GPL(spi_mem_default_supports_op); diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 84ec52498792..c7a7719c2648 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -311,11 +311,13 @@ struct spi_controller_mem_ops { * @ecc: Supports operations with error correction * @swap16: Supports swapping bytes on a 16 bit boundary when configured in * Octal DTR + * @per_op_freq: Supports per operation frequency switching */ struct spi_controller_mem_caps { bool dtr; bool ecc; bool swap16; + bool per_op_freq; }; #define spi_mem_controller_is_capable(ctlr, cap) \ |