ARC: IRQ: drop excessive PM_DEVICE hooks
All ARC CPUs (supported by Zephyr) don't lose core interrupt
controller configuration after switching to sleep mode / modes,
so we don't need to save & restore it's configuration with PM.
This PM code most likely was added for Arduino 101 (Genuino 101)
board which isn't supported by Zephyr anymore - so we can drop
it.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
diff --git a/drivers/interrupt_controller/intc_arcv2_irq_unit.c b/drivers/interrupt_controller/intc_arcv2_irq_unit.c
index 75792b0..333235e 100644
--- a/drivers/interrupt_controller/intc_arcv2_irq_unit.c
+++ b/drivers/interrupt_controller/intc_arcv2_irq_unit.c
@@ -21,30 +21,6 @@
#include <device.h>
#include <init.h>
-#ifdef CONFIG_PM_DEVICE
-#include <pm/device.h>
-#include <kernel_structs.h>
-
-#ifdef CONFIG_ARC_SECURE_FIRMWARE
-#undef _ARC_V2_IRQ_VECT_BASE
-#define _ARC_V2_IRQ_VECT_BASE _ARC_V2_IRQ_VECT_BASE_S
-#endif
-
-struct arc_v2_irq_unit_ctx {
- uint32_t irq_ctrl; /* Interrupt Context Saving Control Register. */
- uint32_t irq_vect_base; /* Interrupt Vector Base. */
-
- /*
- * IRQ configuration:
- * - IRQ Priority:BIT(6):BIT(2)
- * - IRQ Trigger:BIT(1)
- * - IRQ Enable:BIT(0)
- */
- uint8_t irq_config[CONFIG_NUM_IRQS - 16];
-};
-static struct arc_v2_irq_unit_ctx ctx;
-#endif
-
/*
* @brief Initialize the interrupt unit device driver
*
@@ -84,119 +60,4 @@
return 0;
}
-#ifdef CONFIG_PM_DEVICE
-
-/*
- * @brief Suspend the interrupt unit device driver
- *
- * Suspends the interrupt unit device driver and the device
- * itself.
- *
- * @return 0 for success
- */
-static int arc_v2_irq_unit_suspend(const struct device *dev)
-{
- uint8_t irq;
-
- ARG_UNUSED(dev);
-
- /* Interrupts from 0 to 15 are exceptions and they are ignored
- * by IRQ auxiliary registers. For that reason we skip those
- * values in this loop.
- */
- for (irq = 16U; irq < CONFIG_NUM_IRQS; irq++) {
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_SELECT, irq);
- ctx.irq_config[irq - 16] =
- z_arc_v2_aux_reg_read(_ARC_V2_IRQ_PRIORITY) << 2;
- ctx.irq_config[irq - 16] |=
- z_arc_v2_aux_reg_read(_ARC_V2_IRQ_TRIGGER) << 1;
- ctx.irq_config[irq - 16] |=
- z_arc_v2_aux_reg_read(_ARC_V2_IRQ_ENABLE);
- }
-
- ctx.irq_ctrl = z_arc_v2_aux_reg_read(_ARC_V2_AUX_IRQ_CTRL);
- ctx.irq_vect_base = z_arc_v2_aux_reg_read(_ARC_V2_IRQ_VECT_BASE);
-
- return 0;
-}
-
-/*
- * @brief Resume the interrupt unit device driver
- *
- * Resume the interrupt unit device driver and the device
- * itself.
- *
- * @return 0 for success
- */
-static int arc_v2_irq_unit_resume(const struct device *dev)
-{
- uint8_t irq;
-
- ARG_UNUSED(dev);
-
- /* Interrupts from 0 to 15 are exceptions and they are ignored
- * by IRQ auxiliary registers. For that reason we skip those
- * values in this loop.
- */
- for (irq = 16U; irq < CONFIG_NUM_IRQS; irq++) {
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_SELECT, irq);
-#ifdef CONFIG_ARC_SECURE_FIRMWARE
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_PRIORITY,
- ctx.irq_config[irq - 16] >> 2 |
- _ARC_V2_IRQ_PRIORITY_SECURE);
-#else
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_PRIORITY,
- ctx.irq_config[irq - 16] >> 2);
-#endif
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_TRIGGER,
- (ctx.irq_config[irq - 16] >> 1) & BIT(0));
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_ENABLE,
- ctx.irq_config[irq - 16] & BIT(0));
- }
-
-#ifdef CONFIG_ARC_NORMAL_FIRMWARE
- /* \todo use sjli instruction to access irq_ctrl */
-#else
- z_arc_v2_aux_reg_write(_ARC_V2_AUX_IRQ_CTRL, ctx.irq_ctrl);
-#endif
- z_arc_v2_aux_reg_write(_ARC_V2_IRQ_VECT_BASE, ctx.irq_vect_base);
-
- return 0;
-}
-
-/*
- * @brief Implement the driver control of interrupt unit
- *
- * The operation on interrupt unit requires interrupt lock.
- * The *context may include IN data or/and OUT data
- *
- * @return operation result
- */
-static int arc_v2_irq_unit_device_ctrl(const struct device *dev,
- enum pm_device_action action)
-{
- int ret = 0;
- unsigned int key = arch_irq_lock();
-
- switch (action) {
- case PM_DEVICE_ACTION_SUSPEND:
- ret = arc_v2_irq_unit_suspend(dev);
- break;
- case PM_DEVICE_ACTION_RESUME:
- ret = arc_v2_irq_unit_resume(dev);
- break;
- default:
- ret = -ENOTSUP;
- break;
- }
-
- arch_irq_unlock(key);
-
- return ret;
-}
-
-SYS_DEVICE_DEFINE("arc_v2_irq_unit", arc_v2_irq_unit_init,
- arc_v2_irq_unit_device_ctrl, PRE_KERNEL_1, 0);
-#else
SYS_INIT(arc_v2_irq_unit_init, PRE_KERNEL_1, 0);
-#endif /* CONFIG_PM_DEVICE */
