drivers: dma: sam: Update to use clock control

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

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

Author: nandojve

drivers/dma/dma_sam_xdmac.c

@@ -17,6 +17,7 @@
 #include <string.h>
 #include <soc.h>
 #include <zephyr/drivers/dma.h>
+#include <zephyr/drivers/clock_control/atmel_sam_pmc.h>
 #include "dma_sam_xdmac.h"
 
 #define LOG_LEVEL CONFIG_DMA_LOG_LEVEL
@@ -38,7 +39,7 @@ struct sam_xdmac_channel_cfg {
 struct sam_xdmac_dev_cfg {
 	Xdmac *regs;
 	void (*irq_config)(void);
-	uint8_t periph_id;
+	const struct atmel_sam_pmc_config clock_cfg;
 	uint8_t irq_id;
 };
 
@@ -357,8 +358,9 @@ static int sam_xdmac_initialize(const struct device *dev)
 	/* Configure interrupts */
 	dev_cfg->irq_config();
 
-	/* Enable module's clock */
-	soc_pmc_peripheral_enable(dev_cfg->periph_id);
+	/* Enable XDMAC clock in PMC */
+	(void)clock_control_on(SAM_DT_PMC_CONTROLLER,
+			       (clock_control_subsys_t *)&dev_cfg->clock_cfg);
 
 	/* Disable all channels */
 	xdmac->XDMAC_GD = UINT32_MAX;
@@ -391,7 +393,7 @@ static void dma0_sam_irq_config(void)
 static const struct sam_xdmac_dev_cfg dma0_sam_config = {
 	.regs = (Xdmac *)DT_INST_REG_ADDR(0),
 	.irq_config = dma0_sam_irq_config,
-	.periph_id = DT_INST_PROP(0, peripheral_id),
+	.clock_cfg = SAM_DT_INST_CLOCK_PMC_CFG(0),
 	.irq_id = DT_INST_IRQN(0),
 };
 

dts/arm/atmel/same70.dtsi

@@ -394,14 +394,14 @@
 			compatible = "atmel,sam-xdmac";
 			reg = <0x40078000 0x400>;
 			interrupts = <58 0>;
-			peripheral-id = <58>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 58>;
 			#dma-cells = <2>;
 			status = "disabled";
 		};
 
 		ssc: ssc@40004000 {
 			compatible = "atmel,sam-ssc";
-			reg = <0x40004000 0x400>;
+			reg = <0x40004000 0x4000>;
 			interrupts = <22 0>;
 			peripheral-id = <22>;
 			status = "disabled";

dts/bindings/dma/atmel,sam-xdmac.yaml

@@ -14,9 +14,7 @@ properties:
   interrupts:
     required: true
 
-  peripheral-id:
-    type: int
-    description: peripheral ID
+  clocks:
     required: true
 
   "#dma-cells":

tests/drivers/i2s/i2s_api/boards/sam_e70_xplained.overlay

@@ -0,0 +1,3 @@
+&xdmac {
+	status = "okay";
+};

tests/drivers/i2s/i2s_api/boards/sam_v71_xult.overlay

@@ -0,0 +1,3 @@
+&xdmac {
+	status = "okay";
+};