Merge https://gitlab.denx.de/u-boot/custodians/u-boot-x86

- Move P2SB from Apollo Lake to a more generic location
- Add a function to find a device by drvdata in DM core
- Enhancement of DM IRQ uclass driver
- Add a clock driver for Intel devices
- Add support for ACPI general-purpose events
- Add a TPM driver for H1/Cr50
- Enable TPM on Google Chromebook Coral

2 files changed, 172 insertions, 2 deletions

diff --git a/drivers/misc/irq-uclass.c b/drivers/misc/irq-uclass.c
index d5182cf149..61aa10e465 100644
--- a/drivers/misc/irq-uclass.c
+++ b/drivers/misc/irq-uclass.c
@@ -1,11 +1,16 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ * Copyright 2019 Google, LLC
+ * Written by Simon Glass <sjg@chromium.org>
  */
 
+#define LOG_CATEGORY UCLASS_IRQ
+
 #include <common.h>
 #include <dm.h>
+#include <dt-structs.h>
 #include <irq.h>
+#include <dm/device-internal.h>
 
 int irq_route_pmc_gpio_gpe(struct udevice *dev, uint pmc_gpe_num)
 {
@@ -47,6 +52,130 @@ int irq_restore_polarities(struct udevice *dev)
 	return ops->restore_polarities(dev);
 }
 
+int irq_read_and_clear(struct irq *irq)
+{
+	const struct irq_ops *ops = irq_get_ops(irq->dev);
+
+	if (!ops->read_and_clear)
+		return -ENOSYS;
+
+	return ops->read_and_clear(irq);
+}
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+int irq_get_by_index_platdata(struct udevice *dev, int index,
+			      struct phandle_1_arg *cells, struct irq *irq)
+{
+	int ret;
+
+	if (index != 0)
+		return -ENOSYS;
+	ret = uclass_get_device(UCLASS_IRQ, 0, &irq->dev);
+	if (ret)
+		return ret;
+	irq->id = cells[0].arg[0];
+
+	return 0;
+}
+#else
+static int irq_of_xlate_default(struct irq *irq,
+				struct ofnode_phandle_args *args)
+{
+	log_debug("(irq=%p)\n", irq);
+
+	if (args->args_count > 1) {
+		log_debug("Invaild args_count: %d\n", args->args_count);
+		return -EINVAL;
+	}
+
+	if (args->args_count)
+		irq->id = args->args[0];
+	else
+		irq->id = 0;
+
+	return 0;
+}
+
+static int irq_get_by_index_tail(int ret, ofnode node,
+				 struct ofnode_phandle_args *args,
+				 const char *list_name, int index,
+				 struct irq *irq)
+{
+	struct udevice *dev_irq;
+	const struct irq_ops *ops;
+
+	assert(irq);
+	irq->dev = NULL;
+	if (ret)
+		goto err;
+
+	ret = uclass_get_device_by_ofnode(UCLASS_IRQ, args->node, &dev_irq);
+	if (ret) {
+		log_debug("uclass_get_device_by_ofnode failed: err=%d\n", ret);
+		return ret;
+	}
+
+	irq->dev = dev_irq;
+
+	ops = irq_get_ops(dev_irq);
+
+	if (ops->of_xlate)
+		ret = ops->of_xlate(irq, args);
+	else
+		ret = irq_of_xlate_default(irq, args);
+	if (ret) {
+		log_debug("of_xlate() failed: %d\n", ret);
+		return ret;
+	}
+
+	return irq_request(dev_irq, irq);
+err:
+	log_debug("Node '%s', property '%s', failed to request IRQ index %d: %d\n",
+		  ofnode_get_name(node), list_name, index, ret);
+	return ret;
+}
+
+int irq_get_by_index(struct udevice *dev, int index, struct irq *irq)
+{
+	struct ofnode_phandle_args args;
+	int ret;
+
+	ret = dev_read_phandle_with_args(dev, "interrupts-extended",
+					 "#interrupt-cells", 0, index, &args);
+
+	return irq_get_by_index_tail(ret, dev_ofnode(dev), &args,
+				     "interrupts-extended", index > 0, irq);
+}
+#endif /* OF_PLATDATA */
+
+int irq_request(struct udevice *dev, struct irq *irq)
+{
+	const struct irq_ops *ops;
+
+	log_debug("(dev=%p, irq=%p)\n", dev, irq);
+	if (!irq)
+		return 0;
+	ops = irq_get_ops(dev);
+
+	irq->dev = dev;
+
+	if (!ops->request)
+		return 0;
+
+	return ops->request(irq);
+}
+
+int irq_first_device_type(enum irq_dev_t type, struct udevice **devp)
+{
+	int ret;
+
+	ret = uclass_first_device_drvdata(UCLASS_IRQ, type, devp);
+	if (ret)
+		return log_msg_ret("find", ret);
+
+	return 0;
+}
+
 UCLASS_DRIVER(irq) = {
 	.id		= UCLASS_IRQ,
 	.name		= "irq",
diff --git a/drivers/misc/irq_sandbox.c b/drivers/misc/irq_sandbox.c
index 6dda1a4c44..54bc47c8d8 100644
--- a/drivers/misc/irq_sandbox.c
+++ b/drivers/misc/irq_sandbox.c
@@ -8,6 +8,18 @@
 #include <common.h>
 #include <dm.h>
 #include <irq.h>
+#include <asm/test.h>
+
+/**
+ * struct sandbox_irq_priv - private data for this driver
+ *
+ * @count: Counts the number calls to the read_and_clear() method
+ * @pending: true if an interrupt is pending, else false
+ */
+struct sandbox_irq_priv {
+	int count;
+	bool pending;
+};
 
 static int sandbox_set_polarity(struct udevice *dev, uint irq, bool active_low)
 {
@@ -35,15 +47,43 @@ static int sandbox_restore_polarities(struct udevice *dev)
 	return 0;
 }
 
+static int sandbox_irq_read_and_clear(struct irq *irq)
+{
+	struct sandbox_irq_priv *priv = dev_get_priv(irq->dev);
+
+	if (irq->id != SANDBOX_IRQN_PEND)
+		return -EINVAL;
+	priv->count++;
+	if (priv->pending) {
+		priv->pending = false;
+		return 1;
+	}
+
+	if (!(priv->count % 3))
+		priv->pending = true;
+
+	return 0;
+}
+
+static int sandbox_irq_of_xlate(struct irq *irq,
+				struct ofnode_phandle_args *args)
+{
+	irq->id = args->args[0];
+
+	return 0;
+}
+
 static const struct irq_ops sandbox_irq_ops = {
 	.route_pmc_gpio_gpe	= sandbox_route_pmc_gpio_gpe,
 	.set_polarity		= sandbox_set_polarity,
 	.snapshot_polarities	= sandbox_snapshot_polarities,
 	.restore_polarities	= sandbox_restore_polarities,
+	.read_and_clear		= sandbox_irq_read_and_clear,
+	.of_xlate		= sandbox_irq_of_xlate,
 };
 
 static const struct udevice_id sandbox_irq_ids[] = {
-	{ .compatible = "sandbox,irq"},
+	{ .compatible = "sandbox,irq", SANDBOX_IRQT_BASE },
 	{ }
 };
 
@@ -52,4 +92,5 @@ U_BOOT_DRIVER(sandbox_irq_drv) = {
 	.id		= UCLASS_IRQ,
 	.of_match	= sandbox_irq_ids,
 	.ops		= &sandbox_irq_ops,
+	.priv_auto_alloc_size	= sizeof(struct sandbox_irq_priv),
 };