@@ -220,6 +220,14 @@ static inline void *spi_mem_get_drvdata(struct spi_mem *mem)
return mem->drvpriv;
}
+/**
+ * struct spi_controller_mem_caps - SPI memory controller capabilities
+ * @dtr: Supports DTR operations
+ */
+struct spi_controller_mem_caps {
+ bool dtr;
+};
+
/**
* struct spi_controller_mem_ops - SPI memory operations
* @adjust_op_size: shrink the data xfer of an operation to match controller's
@@ -253,6 +261,7 @@ static inline void *spi_mem_get_drvdata(struct spi_mem *mem)
* @poll_status: poll memory device status until (status & mask) == match or
* when the timeout has expired. It fills the data buffer with
* the last status value.
+ * @caps: controller capabilities for the handling of the above operations.
*
* This interface should be implemented by SPI controllers providing an
* high-level interface to execute SPI memory operation, which is usually the
@@ -283,6 +292,7 @@ struct spi_controller_mem_ops {
unsigned long initial_delay_us,
unsigned long polling_rate_us,
unsigned long timeout_ms);
+ const struct spi_controller_mem_caps *caps;
};
/**
Create a spi_controller_mem_caps structure and put it within the spi_controller_mem_ops structure as these are highly related. So far the only field in this structure is the support for dtr operations, but soon we will add another parameter. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- include/linux/spi/spi-mem.h | 10 ++++++++++ 1 file changed, 10 insertions(+)