phy: stm32-usbphyc: manage properly the clk identifier with CCF

Add private uclass data for "stm32-usbphyc-clk" as it is not done
by the driver model.

This clk struct is needed by CCF to save the unique id used to identify
each clock.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

diff --git a/drivers/phy/phy-stm32-usbphyc.c b/drivers/phy/phy-stm32-usbphyc.c
index 8d643b7..fcf8617 100644 (file)
--- a/drivers/phy/phy-stm32-usbphyc.c
+++ b/drivers/phy/phy-stm32-usbphyc.c
@@ -16,7 +16,9 @@
 #include <syscon.h>
 #include <usb.h>
 #include <asm/io.h>
+#include <dm/device.h>
 #include <dm/device_compat.h>
+#include <dm/device-internal.h>
 #include <dm/lists.h>
 #include <dm/of_access.h>
 #include <linux/bitfield.h>
@@ -633,6 +635,7 @@ U_BOOT_DRIVER(stm32_usb_phyc) = {
 
 struct stm32_usbphyc_clk {
        bool enable;
+       struct clk clkp;
 };
 
 static ulong stm32_usbphyc_clk48_get_rate(struct clk *clk)
@@ -687,9 +690,25 @@ const struct clk_ops usbphyc_clk48_ops = {
        .disable = stm32_usbphyc_clk48_disable,
 };
 
+int usbphyc_clk48_probe(struct udevice *dev)
+{
+       struct stm32_usbphyc_clk *priv = dev_get_priv(dev);
+
+       /* prepare clkp to correctly register clock with CCF */
+       priv->clkp.dev = dev;
+       priv->clkp.id = CLK_ID(dev, 0);
+
+       /* Store back pointer to clk from udevice */
+       /* FIXME: This is not allowed...should be allocated by driver model */
+       dev_set_uclass_priv(dev, &priv->clkp);
+
+       return 0;
+}
+
 U_BOOT_DRIVER(stm32_usb_phyc_clk) = {
        .name = "stm32-usbphyc-clk",
        .id = UCLASS_CLK,
        .ops = &usbphyc_clk48_ops,
+       .probe = &usbphyc_clk48_probe,
        .priv_auto = sizeof(struct stm32_usbphyc_clk),
 };