Re: [PATCH] clk: rockchip: rk3328: Add SCLK_USB3OTG_REF support

[Kever Yang]

On 2024/5/2 03:23, Jonas Karlman wrote:

The SCLK_USB3OTG_REF clocks is used as reference clock for USB3 block.

Add simple support to get rate of SCLK_USB3OTG_REF clocks to fix
reference clock period configuration.

Signed-off-by: Jonas Karlman <jo...@kwiboo.se>

Reviewed-by: Kever Yang <kever.y...@rock-chips.com>

Thanks,
- Kever

---
This has been runtime tested on a Rock64 and NanoPi R2S Plus.
---
  drivers/clk/rockchip/clk_rk3328.c | 4 ++++
  1 file changed, 4 insertions(+)

diff --git a/drivers/clk/rockchip/clk_rk3328.c 
b/drivers/clk/rockchip/clk_rk3328.c
index 87075ec71340..314b903eaa03 100644
--- a/drivers/clk/rockchip/clk_rk3328.c
+++ b/drivers/clk/rockchip/clk_rk3328.c
@@ -706,6 +706,9 @@ static ulong rk3328_clk_get_rate(struct clk *clk)
        case PCLK_HDMIPHY:
                rate = rk3328_hdmiphy_get_clk(priv->cru);
                break;
+       case SCLK_USB3OTG_REF:
+               rate = OSC_HZ;
+               break;
        default:
                return -ENOENT;
        }
@@ -780,6 +783,7 @@ static ulong rk3328_clk_set_rate(struct clk *clk, ulong 
rate)
        case PCLK_DDR:
        case ACLK_GMAC:
        case PCLK_GMAC:
+       case SCLK_USB3OTG_REF:
        case SCLK_USB3OTG_SUSPEND:
        case USB480M:
                return 0;