[PATCH v10 04/13] spi: mxic: Provide a capability structure

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

This controller has DTR support, so advertize it with a capability now
that the spi-controller structure contains this new field. This will
later be used by the core to discriminate whether an operation is
supported or not, in a more generic way than having different helpers.

Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20220104083631.40776-5-miquel.raynal@xxxxxxxxxxx
---
 drivers/spi/spi-mxic.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/spi/spi-mxic.c b/drivers/spi/spi-mxic.c
index 45889947afed..9952fcdf3627 100644
--- a/drivers/spi/spi-mxic.c
+++ b/drivers/spi/spi-mxic.c
@@ -448,6 +448,10 @@ static const struct spi_controller_mem_ops mxic_spi_mem_ops = {
 	.exec_op = mxic_spi_mem_exec_op,
 };
 
+static const struct spi_controller_mem_caps mxic_spi_mem_caps = {
+	.dtr = true,
+};
+
 static void mxic_spi_set_cs(struct spi_device *spi, bool lvl)
 {
 	struct mxic_spi *mxic = spi_master_get_devdata(spi->master);
@@ -580,6 +584,7 @@ static int mxic_spi_probe(struct platform_device *pdev)
 
 	master->num_chipselect = 1;
 	master->mem_ops = &mxic_spi_mem_ops;
+	master->mem_caps = &mxic_spi_mem_caps;
 
 	master->set_cs = mxic_spi_set_cs;
 	master->transfer_one = mxic_spi_transfer_one;
-- 
2.27.0