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driver: pwm: pwm-imx: get and enable per/ipg clock using dm

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Get and enable ipg/per pwms clocks using dm api into imx_pwm_of_to_plat
and imx_pwm_probe driver function

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
This commit is contained in:
Tommaso Merciai
2022-03-26 12:19:06 +01:00
committed by Stefano Babic
parent e2d074cead
commit bfc778cb93
1 changed files with 31 additions and 0 deletions
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31
drivers/pwm/pwm-imx.c
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@@ -25,6 +25,7 @@ int pwm_init(int pwm_id, int div, int invert)
writel(0, &pwm->ir);
return 0;
}
#include <clk.h>
int pwm_config_internal(struct pwm_regs *pwm, unsigned long period_cycles,
unsigned long duty_cycles, unsigned long prescale)
@@ -83,6 +84,8 @@ void pwm_disable(int pwm_id)
struct imx_pwm_priv {
struct pwm_regs *regs;
bool invert;
struct clk per_clk;
struct clk ipg_clk;
};
static int imx_pwm_set_invert(struct udevice *dev, uint channel,
@@ -128,15 +131,43 @@ static int imx_pwm_set_enable(struct udevice *dev, uint channel, bool enable)
static int imx_pwm_of_to_plat(struct udevice *dev)
{
int ret;
struct imx_pwm_priv *priv = dev_get_priv(dev);
priv->regs = dev_read_addr_ptr(dev);
ret = clk_get_by_name(dev, "per", &priv->per_clk);
if (ret) {
printf("Failed to get per_clk\n");
return ret;
}
ret = clk_get_by_name(dev, "ipg", &priv->ipg_clk);
if (ret) {
printf("Failed to get ipg_clk\n");
return ret;
}
return 0;
}
static int imx_pwm_probe(struct udevice *dev)
{
int ret;
struct imx_pwm_priv *priv = dev_get_priv(dev);
ret = clk_enable(&priv->per_clk);
if (ret) {
printf("Failed to enable per_clk\n");
return ret;
}
ret = clk_enable(&priv->ipg_clk);
if (ret) {
printf("Failed to enable ipg_clk\n");
return ret;
}
return 0;
}