Add a function to reset DLL logic for SD devices.
Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
Reviewed-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
arch/arm/mach-zynqmp/firmware-zynqmp.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/arm/mach-zynqmp/firmware-zynqmp.c b/arch/arm/mach-zynqmp/firmware-zynqmp.c
index a2b61efff4..b383ed6f00 100644
--- a/arch/arm/mach-zynqmp/firmware-zynqmp.c
+++ b/arch/arm/mach-zynqmp/firmware-zynqmp.c
@@ -511,6 +511,23 @@ static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2,
arg1, arg2, out);
}
+/**
+ * zynqmp_pm_sd_dll_reset() - Reset DLL logic
+ *
+ * @node_id: Node ID of the device
+ * @type: Reset type
+ *
+ * This function resets DLL logic for the SD device.
+ *
+ * Return: Returns status, either success or error+reason
+ */
+int zynqmp_pm_sd_dll_reset(u32 node_id, u32 type)
+{
+ return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, IOCTL_SD_DLL_RESET,
+ type, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(zynqmp_pm_sd_dll_reset);
+
/*
* zynqmp_pm_write_ggs() - PM API for writing global general storage (ggs)
* @index: GGS register index
--
2.40.1
