With this commit one can enable ECSPI clock on imx6q without the need to define direct call to it in the board file (as it is done up to now).
The information regarding proper clocks is provided via DTS description.
Signed-off-by: Lukasz Majewski lukma@denx.de ---
Changes in v2: None
drivers/spi/mxc_spi.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c index 6846762719..f34506099e 100644 --- a/drivers/spi/mxc_spi.c +++ b/drivers/spi/mxc_spi.c @@ -7,6 +7,7 @@ #include <dm.h> #include <malloc.h> #include <spi.h> +#include <clk.h> #include <linux/errno.h> #include <asm/io.h> #include <asm/gpio.h> @@ -50,6 +51,9 @@ struct mxc_spi_slave { unsigned int max_hz; unsigned int mode; struct gpio_desc ss; +#if CONFIG_IS_ENABLED(CLK) + struct clk per_clk; +#endif };
static inline struct mxc_spi_slave *to_mxc_spi_slave(struct spi_slave *slave) @@ -494,6 +498,19 @@ static int mxc_spi_probe(struct udevice *bus) const void *blob = gd->fdt_blob; int ret;
+#if CONFIG_IS_ENABLED(CLK) + ret = clk_get_by_name(bus, "per", &mxcs->per_clk); + if (ret) { + printf("%s: Failed to get per_clk\n", __func__); + return ret; + } + + ret = clk_enable(&mxcs->per_clk); + if (ret) { + printf("%s: Failed to enable per_clk\n", __func__); + return ret; + } +#endif if (gpio_request_by_name(bus, "cs-gpios", 0, &plat->ss, GPIOD_IS_OUT)) { dev_err(bus, "No cs-gpios property\n");