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mmc: fsl_esdhc: add uclass clk support

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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>
This commit is contained in:
Peng Fan 2018-10-18 14:28:35 +02:00 committed by Stefano Babic
parent d423c93b66
commit 3cb1450380
1 changed files with 22 additions and 4 deletions
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26
drivers/mmc/fsl_esdhc.c
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@ -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 esdhc_soc_data {
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 @@ static int fsl_esdhc_probe(struct udevice *dev)
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);