spi: spi-uclass: Add new spi_get_bus_and_cs() implementation

Move legacy spi_get_bus_and_cs() code to _spi_get_bus_and_cs().

Add new spi_get_bus_and_cs() implementation which rely on DT
for speed and mode and don't need any drv_name nor dev_name
parameters. This will prepare the ground for next patch.

Update all callers to use _spi_get_bus_and_cs() to keep the
same behavior.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>

Cc: Marek Behun <marek.behun@nic.cz>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefan Roese <sr@denx.de>
Cc: "Pali Rohár" <pali@kernel.org>
Cc: Konstantin Porotchkin <kostap@marvell.com>
Cc: Igal Liberman <igall@marvell.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Pratyush Yadav <p.yadav@ti.com>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Anji J <anji.jagarlmudi@nxp.com>
Cc: Biwen Li <biwen.li@nxp.com>
Cc: Priyanka Jain <priyanka.jain@nxp.com>
Cc: Chaitanya Sakinam <chaitanya.sakinam@nxp.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/include/spi.h b/include/spi.h
index fa9ab12..9a8c1fb 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -572,6 +572,23 @@ int spi_find_bus_and_cs(int busnum, int cs, struct udevice **busp,
  * Given a bus number and chip select, this finds the corresponding bus
  * device and slave device.
  *
+ * @busnum:	SPI bus number
+ * @cs:		Chip select to look for
+ * @busp:	Returns bus device
+ * @devp:	Return slave device
+ * @return 0 if found, -ve on error
+ */
+int spi_get_bus_and_cs(int busnum, int cs,
+		       struct udevice **busp, struct spi_slave **devp);
+
+/**
+ * _spi_get_bus_and_cs() - Find and activate bus and slave devices by number
+ * As spi_flash_probe(), This is an old-style function. We should remove
+ * it when all SPI flash drivers use dm
+ *
+ * Given a bus number and chip select, this finds the corresponding bus
+ * device and slave device.
+ *
  * If no such slave exists, and drv_name is not NULL, then a new slave device
  * is automatically bound on this chip select with requested speed and mode.
  *
@@ -588,7 +605,7 @@ int spi_find_bus_and_cs(int busnum, int cs, struct udevice **busp,
  * @devp:	Return slave device
  * Return: 0 if found, -ve on error
  */
-int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode,
+int _spi_get_bus_and_cs(int busnum, int cs, int speed, int mode,
 			const char *drv_name, const char *dev_name,
 			struct udevice **busp, struct spi_slave **devp);