drivers: dac: sam: Update to use clock control

This update Atmel SAM dac driver to use clock control driver.

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

Author: nandojve

drivers/dac/dac_sam.c

@@ -19,6 +19,7 @@
 #include <zephyr/device.h>
 #include <zephyr/drivers/dac.h>
 #include <zephyr/drivers/pinctrl.h>
+#include <zephyr/drivers/clock_control/atmel_sam_pmc.h>
 
 #include <zephyr/logging/log.h>
 #include <zephyr/irq.h>
@@ -33,10 +34,10 @@ BUILD_ASSERT(IS_ENABLED(CONFIG_SOC_SERIES_SAME70) ||
 /* Device constant configuration parameters */
 struct dac_sam_dev_cfg {
 	Dacc *regs;
+	const struct atmel_sam_pmc_config clock_cfg;
 	const struct pinctrl_dev_config *pcfg;
 	void (*irq_config)(void);
 	uint8_t irq_id;
-	uint8_t periph_id;
 	uint8_t prescaler;
 };
 
@@ -133,7 +134,8 @@ static int dac_sam_init(const struct device *dev)
 	}
 
 	/* Enable DAC clock in PMC */
-	soc_pmc_peripheral_enable(dev_cfg->periph_id);
+	(void)clock_control_on(SAM_DT_PMC_CONTROLLER,
+			       (clock_control_subsys_t *)&dev_cfg->clock_cfg);
 
 	retval = pinctrl_apply_state(dev_cfg->pcfg, PINCTRL_STATE_DEFAULT);
 	if (retval < 0) {
@@ -171,7 +173,7 @@ static const struct dac_sam_dev_cfg dacc_sam_config = {
 	.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(0),
 	.irq_id = DT_INST_IRQN(0),
 	.irq_config = dacc_irq_config,
-	.periph_id = DT_INST_PROP(0, peripheral_id),
+	.clock_cfg = SAM_DT_INST_CLOCK_PMC_CFG(0),
 	.prescaler = DT_INST_PROP(0, prescaler),
 };
 

dts/arm/atmel/same70.dtsi

@@ -221,7 +221,7 @@
 			compatible = "atmel,sam-dac";
 			reg = <0x40040000 0x100>;
 			interrupts = <30 0>;
-			peripheral-id = <30>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 30>;
 			status = "disabled";
 			#io-channel-cells = <1>;
 		};

dts/bindings/dac/atmel,sam-dac.yaml

@@ -13,11 +13,8 @@ properties:
   reg:
     required: true
 
-  peripheral-id:
-    type: int
+  clocks:
     required: true
-    description: |
-      peripheral ID
 
   prescaler:
     type: int