Merge tag 'samsung-drivers-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers

Samsung SoC drivers for v6.15

1. Add support for Exynos USI v1 serial engines.  Drivers already
   supported newer IP blocks - USI v2 - present in Exynos850 and newer.
   A bit older ARM64 designs, like Exynos8895 use older USI v1 block.

2. Add Exynos ACPM (Alive Clock and Power Manager) protocol driver
   for Google GS101 SoC.  ACPM protocol allows communication between the
   power management firmware and other embedded processors.

3. Exynos2200: Add PMU, ChipID and SYSREG Devicetree bindings.

4. Exynos7870: Add PMU and ChipID Devicetree bindings.

5. Various cleanups.

* tag 'samsung-drivers-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  dt-bindings: soc: samsung: exynos-usi: Drop unnecessary status from example
  soc: samsung: include linux/array_size.h where needed
  soc: samsung: exynos-chipid: add support for exynos7870
  dt-bindings: soc: samsung: exynos-pmu: add exynos7870-pmu compatible
  dt-bindings: hwinfo: samsung,exynos-chipid: add exynos7870-chipid compatible
  soc: samsung: exynos-chipid: add exynos2200 SoC support
  dt-bindings: hwinfo: samsung,exynos-chipid: add exynos2200 compatible
  dt-bindings: soc: samsung: exynos-pmu: add exynos2200 compatible
  dt-bindings: soc: samsung: exynos-sysreg: add sysreg compatibles for exynos2200
  firmware: Exynos ACPM: Fix spelling mistake "Faile" -> "Failed"
  MAINTAINERS: add entry for the Samsung Exynos ACPM mailbox protocol
  firmware: add Exynos ACPM protocol driver
  dt-bindings: firmware: add google,gs101-acpm-ipc
  soc: samsung: usi: implement support for USIv1 and exynos8895
  soc: samsung: usi: add a routine for unconfiguring the ip
  dt-bindings: soc: samsung: usi: add USIv1 and samsung,exynos8895-usi
  soc: samsung: Use syscon_regmap_lookup_by_phandle_args

Link: https://lore.kernel.org/r/20250309185601.10616-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 49 insertions, 0 deletions

diff --git a/include/linux/firmware/samsung/exynos-acpm-protocol.h b/include/linux/firmware/samsung/exynos-acpm-protocol.h
new file mode 100644
index 000000000000..76255b5d06b1
--- /dev/null
+++ b/include/linux/firmware/samsung/exynos-acpm-protocol.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2020 Samsung Electronics Co., Ltd.
+ * Copyright 2020 Google LLC.
+ * Copyright 2024 Linaro Ltd.
+ */
+
+#ifndef __EXYNOS_ACPM_PROTOCOL_H
+#define __EXYNOS_ACPM_PROTOCOL_H
+
+#include <linux/types.h>
+
+struct acpm_handle;
+
+struct acpm_pmic_ops {
+	int (*read_reg)(const struct acpm_handle *handle,
+			unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
+			u8 *buf);
+	int (*bulk_read)(const struct acpm_handle *handle,
+			 unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
+			 u8 count, u8 *buf);
+	int (*write_reg)(const struct acpm_handle *handle,
+			 unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
+			 u8 value);
+	int (*bulk_write)(const struct acpm_handle *handle,
+			  unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
+			  u8 count, const u8 *buf);
+	int (*update_reg)(const struct acpm_handle *handle,
+			  unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
+			  u8 value, u8 mask);
+};
+
+struct acpm_ops {
+	struct acpm_pmic_ops pmic_ops;
+};
+
+/**
+ * struct acpm_handle - Reference to an initialized protocol instance
+ * @ops:
+ */
+struct acpm_handle {
+	struct acpm_ops ops;
+};
+
+struct device;
+
+const struct acpm_handle *devm_acpm_get_by_phandle(struct device *dev,
+						   const char *property);
+#endif /* __EXYNOS_ACPM_PROTOCOL_H */