spi: imx: Use clock framework if enabled
In case the clock framework is enabled, enable the SPI controller clock
and obtain max frequency from the clock framework.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index c61ab74..553a031 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -4,6 +4,7 @@
*/
#include <common.h>
+#include <clk.h>
#include <dm.h>
#include <log.h>
#include <malloc.h>
@@ -617,8 +618,19 @@
if (mxcs->base == FDT_ADDR_T_NONE)
return -ENODEV;
+#if CONFIG_IS_ENABLED(CLK)
+ struct clk clk;
+ ret = clk_get_by_index(bus, 0, &clk);
+ if (ret)
+ return ret;
+
+ clk_enable(&clk);
+
+ mxcs->max_hz = clk_get_rate(&clk);
+#else
mxcs->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency",
20000000);
+#endif
return 0;
}