mmc: fsl_esdhc: add uclass clk support
When CONIFG_CLK is enabled, use uclass clk api to handle
the clock.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 220f4f7..3cdfa7f 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -11,6 +11,7 @@
#include <config.h>
#include <common.h>
#include <command.h>
+#include <clk.h>
#include <errno.h>
#include <hwconfig.h>
#include <mmc.h>
@@ -121,6 +122,7 @@
struct fsl_esdhc_priv {
struct fsl_esdhc *esdhc_regs;
unsigned int sdhc_clk;
+ struct clk per_clk;
unsigned int clock;
unsigned int mode;
unsigned int bus_width;
@@ -1496,10 +1498,26 @@
init_clk_usdhc(dev->seq);
- priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
- if (priv->sdhc_clk <= 0) {
- dev_err(dev, "Unable to get clk for %s\n", dev->name);
- return -EINVAL;
+ if (IS_ENABLED(CONFIG_CLK)) {
+ /* Assigned clock already set clock */
+ ret = clk_get_by_name(dev, "per", &priv->per_clk);
+ if (ret) {
+ printf("Failed to get per_clk\n");
+ return ret;
+ }
+ ret = clk_enable(&priv->per_clk);
+ if (ret) {
+ printf("Failed to enable per_clk\n");
+ return ret;
+ }
+
+ priv->sdhc_clk = clk_get_rate(&priv->per_clk);
+ } else {
+ priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
+ if (priv->sdhc_clk <= 0) {
+ dev_err(dev, "Unable to get clk for %s\n", dev->name);
+ return -EINVAL;
+ }
}
ret = fsl_esdhc_init(priv, plat);