Merge branch 'qcom-main' of https://source.denx.de/u-boot/custodians/u-boot-snapdragon

We have been getting a lot more patches from Qualcomm engineers, largely
focusing on IoT, router, and automotive platforms (those with QCS, IPQ,
and SA prefixes specifically).

Quite a variety of changes here:
- Watchdog overflow fix
- Hardcoded fastboot buffer addresses for a few board (hoppefully
  temporary until fastboot is updated to read $fastboot_addr_r)
- Enable memory protection (MMU_MGPROT) for ARCH_SNAPDRAGON
- pinctrl support for the QCS615 soc
- various USB/phy fixes including phy config for msm8996/qcs615
- mmc and i2c clock configuration fixes
- significant fixes for rpmh and regulator drivers
- added config fragment for pixel devices
- sa8775p clock fixes
- support for "flattened" dwc3 DT that recently landed upstream for
  sc7280 (qcs6490) and a few other platforms

include/configs/dragonboard820c.h

@@ -27,7 +27,6 @@
 
 #define CFG_EXTRA_ENV_SETTINGS \
 	"loadaddr=0x95000000\0" \
-	"fdt_high=0xffffffffffffffff\0" \
 	"initrd_high=0xffffffffffffffff\0" \
 	"linux_image=uImage\0" \
 	"kernel_addr_r=0x95000000\0"\

include/soc/qcom/rpmh.h

@@ -13,12 +13,14 @@
 #if IS_ENABLED(CONFIG_QCOM_RPMH)
 int rpmh_write(const struct udevice *dev, enum rpmh_state state,
 	       const struct tcs_cmd *cmd, u32 n);
-
+int rpmh_read(const struct udevice *dev, enum rpmh_state state, struct tcs_cmd *cmd);
 #else
 
 static inline int rpmh_write(const struct device *dev, enum rpmh_state state,
 			     const struct tcs_cmd *cmd, u32 n)
 { return -ENODEV; }
+static inline int rpmh_read(const struct udevice *dev, struct tcs_cmd *cmd)
+{ return -ENODEV; }
 
 #endif /* CONFIG_QCOM_RPMH */
 

include/soc/qcom/tcs.h

@@ -55,6 +55,7 @@ struct tcs_cmd {
  */
 struct tcs_request {
 	enum rpmh_state state;
+	bool is_read;
 	u32 wait_for_compl;
 	u32 num_cmds;
 	struct tcs_cmd *cmds;