[nrf fromlist] drivers: spi: nrfx_spim: set/clear pins retention

Add pins retention control when GPD is enabled for SPIM.

Upstream PR #: 81134

Signed-off-by: Adam Kondraciuk <adam.kondraciuk@nordicsemi.no>

drivers/spi/spi_nrfx_spim.c

@@ -12,6 +12,9 @@
 #include <zephyr/drivers/pinctrl.h>
 #include <zephyr/mem_mgmt/mem_attr.h>
 #include <soc.h>
+#ifdef CONFIG_SOC_NRF54H20_GPD
+#include <nrf/gpd.h>
+#endif
 #ifdef CONFIG_SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58
 #include <nrfx_ppi.h>
 #endif
@@ -592,6 +595,11 @@ static int spim_nrfx_pm_action(const struct device *dev,
 		/* nrfx_spim_init() will be called at configuration before
 		 * the next transfer.
 		 */
+
+#ifdef CONFIG_SOC_NRF54H20_GPD
+		nrf_gpd_retain_pins_set(dev_config->pcfg, false);
+#endif
+
 		break;
 
 	case PM_DEVICE_ACTION_SUSPEND:
@@ -600,6 +608,10 @@ static int spim_nrfx_pm_action(const struct device *dev,
 			dev_data->initialized = false;
 		}
 
+#ifdef CONFIG_SOC_NRF54H20_GPD
+	nrf_gpd_retain_pins_set(dev_config->pcfg, true);
+#endif
+
 		ret = pinctrl_apply_state(dev_config->pcfg,
 					  PINCTRL_STATE_SLEEP);
 		break;