drivers: hwinfo: sam: Update to use clock control

This update Atmel SAM hwinfo reset cause driver to use clock control
driver.

Signed-off-by: Gerson Fernando Budke <[email protected]>

Author: nandojve

drivers/hwinfo/hwinfo_sam_rstc.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2022 Basalte bv
+ * Copyright (c) 2023 Gerson Fernando Budke
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -8,8 +9,7 @@
 
 #include <zephyr/device.h>
 #include <zephyr/drivers/hwinfo.h>
-#include <zephyr/init.h>
-#include <soc.h>
+#include <zephyr/drivers/clock_control/atmel_sam_pmc.h>
 
 BUILD_ASSERT(DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) == 1,
 	     "No atmel,sam-rstc compatible device found");
@@ -56,12 +56,14 @@ int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
 static int hwinfo_rstc_init(const struct device *dev)
 {
 	Rstc *regs = (Rstc *)DT_INST_REG_ADDR(0);
+	const struct atmel_sam_pmc_config clock_cfg = SAM_DT_INST_CLOCK_PMC_CFG(0);
 	uint32_t mode;
 
 	ARG_UNUSED(dev);
 
 	/* Enable RSTC in PMC */
-	soc_pmc_peripheral_enable(DT_INST_PROP(0, peripheral_id));
+	(void)clock_control_on(SAM_DT_PMC_CONTROLLER,
+			       (clock_control_subsys_t *)&clock_cfg);
 
 	/* Get current Mode Register value */
 	mode = regs->RSTC_MR;

dts/arm/atmel/sam4s.dtsi

@@ -216,7 +216,7 @@
 		rstc: rstc@400e1400 {
 			compatible = "atmel,sam-rstc";
 			reg = <0x400e1400 0x10>;
-			peripheral-id = <1>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 1>;
 			user-nrst;
 		};
 

dts/arm/atmel/same70.dtsi

@@ -452,7 +452,7 @@
 		rstc: rstc@400e1800 {
 			compatible = "atmel,sam-rstc";
 			reg = <0x400e1800 0x10>;
-			peripheral-id = <1>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 1>;
 			user-nrst;
 		};
 	};

dts/bindings/hwinfo/atmel,sam-rstc.yaml

@@ -11,9 +11,7 @@ properties:
   reg:
     required: true
 
-  peripheral-id:
-    type: int
-    description: peripheral ID
+  clocks:
     required: true
 
   user-nrst: