[PATCH v2 03/12] spi: add spi_{set,get}_ctldata accessors

[Marco Felsch <m.felsch@pengutronix.de>]

We alreary support the controller_state priv data pointer, add the Linux
APIs to set/get the data.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
Changelog:
v2:
 - no changes

 include/spi/spi.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/spi/spi.h b/include/spi/spi.h
index 622de732fa6d..9261d508befd 100644
--- a/include/spi/spi.h
+++ b/include/spi/spi.h
@@ -116,6 +116,17 @@ static inline struct spi_device *to_spi_device(struct device *dev)
         return dev ? container_of(dev, struct spi_device, dev) : NULL;
 }
 
+/* ctldata is for the bus_controller driver's runtime state */
+static inline void *spi_get_ctldata(const struct spi_device *spi)
+{
+	return spi->controller_state;
+}
+
+static inline void spi_set_ctldata(struct spi_device *spi, void *state)
+{
+	spi->controller_state = state;
+}
+
 /**
  * struct spi_controller - interface to SPI master or slave controller
  * @dev: device interface to this driver
-- 
2.39.5