Re: [PATCH 3/3] clk: stm32mp: handle ck_usbo_48m clock provided by USBPHYC

Hi Patrick

On 4/26/22 14:37, Patrick Delaunay wrote:

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

drivers/clk/clk_stm32mp1.c | 35 ++++++++++++++++++++--------------- 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c index 83ab6b728e..a02921c43a 100644 --- a/drivers/clk/clk_stm32mp1.c +++ b/drivers/clk/clk_stm32mp1.c @@ -962,6 +962,24 @@ static ulong stm32mp1_read_pll_freq(struct stm32mp1_clk_priv *priv, 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) { u32 reg; @@ -1127,24 +1145,11 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p) break; /* other */ case _USB_PHY_48:

• clock = 48000000;
  

• clock = stm32mp1_clk_get_by_name("ck_usbo_48m");
  

  break; case _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);
  

• 	}
  

• }
  

• clock = stm32mp1_clk_get_by_name("ck_dsi_phy");
  

  break;

• } default: break; }

Reviewed-by: Patrice Chotard patrice.chotard@foss.st.com

Thanks Patrice