Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
new file mode 100644
index 0000000000..7c18420c9f
--- /dev/null
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Smart reflex Class 3 specific implementations
+ *
+ * Author: Thara Gopinath       <thara@ti.com>
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ * Thara Gopinath <thara@ti.com>
+ */
+
+#include <linux/power/smartreflex.h>
+#include "soc.h"
+#include "voltage.h"
+
+static int sr_class3_enable(struct omap_sr *sr)
+{
+	unsigned long volt = voltdm_get_voltage(sr->voltdm);
+
+	if (!volt) {
+		pr_warn("%s: Curr voltage unknown. Cannot enable %s\n",
+			__func__, sr->name);
+		return -ENODATA;
+	}
+
+	omap_vp_enable(sr->voltdm);
+	return sr_enable(sr, volt);
+}
+
+static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
+{
+	sr_disable_errgen(sr);
+	omap_vp_disable(sr->voltdm);
+	sr_disable(sr);
+	if (is_volt_reset)
+		voltdm_reset(sr->voltdm);
+
+	return 0;
+}
+
+static int sr_class3_configure(struct omap_sr *sr)
+{
+	return sr_configure_errgen(sr);
+}
+
+/* SR class3 structure */
+static struct omap_sr_class_data class3_data = {
+	.enable = sr_class3_enable,
+	.disable = sr_class3_disable,
+	.configure = sr_class3_configure,
+	.class_type = SR_CLASS3,
+};
+
+/* Smartreflex Class3 init API to be called from board file */
+static int __init sr_class3_init(void)
+{
+	pr_info("SmartReflex Class3 initialized\n");
+	return sr_register_class(&class3_data);
+}
+omap_late_initcall(sr_class3_init);