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spi: imx: Use clock framework if enabled

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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>
This commit is contained in:
Marek Vasut 2021-01-19 00:58:33 +01:00 • committed by Stefano Babic
parent 6cd4f48b64
commit 38b92ca196
1 changed files with 12 additions and 0 deletions

12
drivers/spi/mxc_spi.c
View file

@ -4,6 +4,7 @@
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <log.h>
#include <malloc.h>
@ -617,8 +618,19 @@ static int mxc_spi_probe(struct udevice *bus)
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;
}