diff mbox series

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

Message ID 20220406063031.21960-5-peng.fan@oss.nxp.com
State Accepted
Commit a178a8c5de4f1c061a40d62f34ec081165a3862a
Delegated to: Stefano Babic
Headers show
Series imx: imx8ulp: misc update from downstream | expand

Commit Message

Peng Fan (OSS) April 6, 2022, 6:30 a.m. UTC 
From: Clark Wang <xiaoning.wang@nxp.com>

Add i3c controller clock enable/disable function for imx8ulp.

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

Comments

Stefano Babic April 12, 2022, 6:44 p.m. UTC | #1 
> From: Clark Wang <xiaoning.wang@nxp.com>
> Add i3c controller clock enable/disable function for imx8ulp.
> Reviewed-by: Ye Li <ye.li@nxp.com>
> Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic
diff mbox series

Patch

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) {