To smoothly handle the transition from the legacy SPI FLASH
API to the the driver model API, add the DM functions
as dummy inline functions.
Today, client code uses #if/#else conditionals, but it's better
to use if(IS_ENABLED()) to make sure all code builds fine
and avoid configuration hell, leaving the compiler remove
the dead code.
An example is cmd/sf, which could make use of those dummy
functions to drop the conditional compilation.
Signed-off-by: Neil Armstrong <neil.armstr...@linaro.org>
---
include/spi_flash.h | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/include/spi_flash.h b/include/spi_flash.h
index 10d19fd4b11..2e703e85250 100644
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -139,6 +139,40 @@ int sandbox_sf_bind_emul(struct sandbox_state *state, int
busnum, int cs,
void sandbox_sf_unbind_emul(struct sandbox_state *state, int busnum, int cs);
#else
+/* Compatibility functions for when DM_SPI_FLASH is disabled */
+static inline int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
+ struct udevice **devp)
+{
+ return -ENODEV;
+}
+
+static inline int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t
len,
+ void *buf)
+{
+ return -ENODEV;
+}
+
+static inline int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t
len,
+ const void *buf)
+{
+ return -ENODEV;
+}
+
+static inline int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t
len)
+{
+ return -ENODEV;
+}
+
+static inline int spl_flash_get_sw_write_prot(struct udevice *dev)
+{
+ return -ENODEV;
+}
+
+static inline int spi_flash_std_probe(struct udevice *dev)
+{
+ return -ENODEV;
+}
+
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode);
--
2.34.1
