[PATCH V2 04/26] imx: imx8ulp: clock: Add clock support for i3c controller

[Peng Fan (OSS)]

From: Clark Wang <xiaoning.w...@nxp.com>

Add i3c controller clock enable/disable function for imx8ulp.

Reviewed-by: Ye Li <ye...@nxp.com>
Signed-off-by: Clark Wang <xiaoning.w...@nxp.com>
Signed-off-by: Peng Fan <peng....@nxp.com>
---
 arch/arm/mach-imx/imx8ulp/clock.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/mach-imx/imx8ulp/clock.c 
b/arch/arm/mach-imx/imx8ulp/clock.c
index 91580b2c29c..a2b3ce78cc1 100644
--- a/arch/arm/mach-imx/imx8ulp/clock.c
+++ b/arch/arm/mach-imx/imx8ulp/clock.c
@@ -237,6 +237,26 @@ u32 imx_get_i2cclk(u32 i2c_num)
 }
 #endif
 
+#if IS_ENABLED(CONFIG_SYS_I2C_IMX_I3C)
+int enable_i3c_clk(unsigned char enable, u32 i3c_num)
+{
+       if (enable) {
+               pcc_clock_enable(3, I3C2_PCC3_SLOT, false);
+               pcc_clock_sel(3, I3C2_PCC3_SLOT, SOSC_DIV2);
+               pcc_clock_enable(3, I3C2_PCC3_SLOT, true);
+               pcc_reset_peripheral(3, I3C2_PCC3_SLOT, false);
+       } else {
+               pcc_clock_enable(3, I3C2_PCC3_SLOT, false);
+       }
+       return 0;
+}
+
+u32 imx_get_i3cclk(u32 i3c_num)
+{
+       return pcc_clock_get_rate(3, I3C2_PCC3_SLOT);
+}
+#endif
+
 void enable_usboh3_clk(unsigned char enable)
 {
        if (enable) {
-- 
2.35.1