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clk: stm32mp: handle ck_usbo_48m clock provided by USBPHYC

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Handle the input clock of RCC USB_PHY_48, provided by USBPHYC
and named "ck_usbo_48m".

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-04-26 14:37:49 +02:00
parent 9406f9735c
commit 06328d1411
1 changed files with 20 additions and 15 deletions
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35
drivers/clk/stm32/clk-stm32mp1.c
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@ -962,6 +962,24 @@ static ulong stm32mp1_read_pll_freq(struct stm32mp1_clk_priv *priv,
return dfout; return dfout;
} }
static ulong stm32mp1_clk_get_by_name(const char *name)
{
struct clk clk;
struct udevice *dev = NULL;
ulong clock = 0;
if (!uclass_get_device_by_name(UCLASS_CLK, name, &dev)) {
if (clk_request(dev, &clk)) {
log_err("%s request", name);
} else {
clk.id = 0;
clock = clk_get_rate(&clk);
}
}
return clock;
}
static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p) static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
{ {
u32 reg; u32 reg;
@ -1127,24 +1145,11 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
break; break;
/* other */ /* other */
case _USB_PHY_48: case _USB_PHY_48:
clock = 48000000; clock = stm32mp1_clk_get_by_name("ck_usbo_48m");
break; break;
case _DSI_PHY: case _DSI_PHY:
{ clock = stm32mp1_clk_get_by_name("ck_dsi_phy");
struct clk clk;
struct udevice *dev = NULL;
if (!uclass_get_device_by_name(UCLASS_CLK, "ck_dsi_phy",
&dev)) {
if (clk_request(dev, &clk)) {
log_err("ck_dsi_phy request");
} else {
clk.id = 0;
clock = clk_get_rate(&clk);
}
}
break; break;
}
default: default:
break; break;
} }