Merge tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "The driver updates seem larger this time around, with changes is many
  of the SoC specific drivers, both the custom drivers/soc ones and the
  closely related subsystems (memory, bus, firmware, reset, ...).

  The at91 platform gains support for sam9x7 chips in the soc and power
  management code. This is the latest variant of one of the oldest still
  supported SoC families, using the ARM9 (ARMv5) core.

  As usual, the qualcomm snapdragon platform gets a ton of updates in
  many of their drivers to add more features and additional SoC support.
  Most of these are somewhat firmware related as the platform has a
  number of firmware based interfaces to the kernel. A notable addition
  here is the inclusion of trace events to two of these drivers.

  Herve Codina and Christophe Leroy are now sending updates for
  drivers/soc/fsl/ code through the SoC tree, this contains both PowerPC
  and Arm specific platforms and has previously been problematic to
  maintain. The first update here contains support for newer PowerPC
  variants and some cleanups.

  The turris mox firmware driver has a number of updates, mostly
  cleanups.

  The Arm SCMI firmware driver gets a major rework to modularize the
  existing code into separately loadable drivers for the various
  transports, the addition of custom NXP i.MX9 interfaces and a number
  of smaller updates.

  The Arm FF-A firmware driver gets a feature update to support the v1.2
  version of the specification.

  The reset controller drivers have some smaller cleanups and a newly
  added driver for the Intel/Mobileye EyeQ5/EyeQ6 MIPS SoCs.

  The memory controller drivers get some cleanups and refactoring for
  Tegra, TI, Freescale/NXP and a couple more platforms.

  Finally there are lots of minor updates to firmware (raspberry pi,
  tegra, imx), bus (sunxi, omap, tegra) and soc (rockchips, tegra,
  amlogic, mediatek) drivers and their DT bindings"

* tag 'soc-drivers-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (212 commits)
  firmware: imx: remove duplicate scmi_imx_misc_ctrl_get()
  platform: cznic: turris-omnia-mcu: Fix error check in omnia_mcu_register_trng()
  bus: sunxi-rsb: Simplify code with dev_err_probe()
  soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt
  soc: fsl: cpm1: qmc: Fix dependency on fsl_soc.h
  dt-bindings: arm: rockchip: Add rk3576 compatible string to pmu.yaml
  soc: fsl: qbman: Remove redundant warnings
  soc: fsl: qbman: Use iommu_paging_domain_alloc()
  MAINTAINERS: Add QE files related to the Freescale QMC controller
  soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware
  soc: fsl: cpm1: qmc: Add support for QUICC Engine (QE) implementation
  soc: fsl: qe: Add missing PUSHSCHED command
  soc: fsl: qe: Add resource-managed muram allocators
  soc: fsl: cpm1: qmc: Introduce qmc_version
  soc: fsl: cpm1: qmc: Rename SCC_GSMRL_MODE_QMC
  soc: fsl: cpm1: qmc: Handle RPACK initialization
  soc: fsl: cpm1: qmc: Rename qmc_chan_command()
  soc: fsl: cpm1: qmc: Introduce qmc_{init,exit}_xcc() and their CPM1 version
  soc: fsl: cpm1: qmc: Introduce qmc_init_resource() and its CPM1 version
  soc: fsl: cpm1: qmc: Re-order probe() operations
  ...

1 files changed, 162 insertions, 0 deletions

diff --git a/drivers/rtc/rtc-imx-sm-bbm.c b/drivers/rtc/rtc-imx-sm-bbm.c
new file mode 100644
index 000000000000..daa472be7c80
--- /dev/null
+++ b/drivers/rtc/rtc-imx-sm-bbm.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2024 NXP.
+ */
+
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+#include <linux/scmi_protocol.h>
+#include <linux/scmi_imx_protocol.h>
+
+struct scmi_imx_bbm {
+	const struct scmi_imx_bbm_proto_ops *ops;
+	struct rtc_device *rtc_dev;
+	struct scmi_protocol_handle *ph;
+	struct notifier_block nb;
+};
+
+static int scmi_imx_bbm_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct scmi_imx_bbm *bbnsm = dev_get_drvdata(dev);
+	struct scmi_protocol_handle *ph = bbnsm->ph;
+	u64 val;
+	int ret;
+
+	ret = bbnsm->ops->rtc_time_get(ph, 0, &val);
+	if (ret)
+		return ret;
+
+	rtc_time64_to_tm(val, tm);
+
+	return 0;
+}
+
+static int scmi_imx_bbm_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct scmi_imx_bbm *bbnsm = dev_get_drvdata(dev);
+	struct scmi_protocol_handle *ph = bbnsm->ph;
+	u64 val;
+
+	val = rtc_tm_to_time64(tm);
+
+	return bbnsm->ops->rtc_time_set(ph, 0, val);
+}
+
+static int scmi_imx_bbm_alarm_irq_enable(struct device *dev, unsigned int enable)
+{
+	struct scmi_imx_bbm *bbnsm = dev_get_drvdata(dev);
+	struct scmi_protocol_handle *ph = bbnsm->ph;
+
+	/* scmi_imx_bbm_set_alarm enables the irq, just handle disable here */
+	if (!enable)
+		return bbnsm->ops->rtc_alarm_set(ph, 0, false, 0);
+
+	return 0;
+}
+
+static int scmi_imx_bbm_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct scmi_imx_bbm *bbnsm = dev_get_drvdata(dev);
+	struct scmi_protocol_handle *ph = bbnsm->ph;
+	struct rtc_time *alrm_tm = &alrm->time;
+	u64 val;
+
+	val = rtc_tm_to_time64(alrm_tm);
+
+	return bbnsm->ops->rtc_alarm_set(ph, 0, true, val);
+}
+
+static const struct rtc_class_ops smci_imx_bbm_rtc_ops = {
+	.read_time = scmi_imx_bbm_read_time,
+	.set_time = scmi_imx_bbm_set_time,
+	.set_alarm = scmi_imx_bbm_set_alarm,
+	.alarm_irq_enable = scmi_imx_bbm_alarm_irq_enable,
+};
+
+static int scmi_imx_bbm_rtc_notifier(struct notifier_block *nb, unsigned long event, void *data)
+{
+	struct scmi_imx_bbm *bbnsm = container_of(nb, struct scmi_imx_bbm, nb);
+	struct scmi_imx_bbm_notif_report *r = data;
+
+	if (r->is_rtc)
+		rtc_update_irq(bbnsm->rtc_dev, 1, RTC_AF | RTC_IRQF);
+	else
+		pr_err("Unexpected bbm event: %s\n", __func__);
+
+	return 0;
+}
+
+static int scmi_imx_bbm_rtc_init(struct scmi_device *sdev)
+{
+	const struct scmi_handle *handle = sdev->handle;
+	struct device *dev = &sdev->dev;
+	struct scmi_imx_bbm *bbnsm = dev_get_drvdata(dev);
+	int ret;
+
+	bbnsm->rtc_dev = devm_rtc_allocate_device(dev);
+	if (IS_ERR(bbnsm->rtc_dev))
+		return PTR_ERR(bbnsm->rtc_dev);
+
+	bbnsm->rtc_dev->ops = &smci_imx_bbm_rtc_ops;
+	bbnsm->rtc_dev->range_max = U32_MAX;
+
+	bbnsm->nb.notifier_call = &scmi_imx_bbm_rtc_notifier;
+	ret = handle->notify_ops->devm_event_notifier_register(sdev, SCMI_PROTOCOL_IMX_BBM,
+							       SCMI_EVENT_IMX_BBM_RTC,
+							       NULL, &bbnsm->nb);
+	if (ret)
+		return ret;
+
+	return devm_rtc_register_device(bbnsm->rtc_dev);
+}
+
+static int scmi_imx_bbm_rtc_probe(struct scmi_device *sdev)
+{
+	const struct scmi_handle *handle = sdev->handle;
+	struct device *dev = &sdev->dev;
+	struct scmi_protocol_handle *ph;
+	struct scmi_imx_bbm *bbnsm;
+	int ret;
+
+	if (!handle)
+		return -ENODEV;
+
+	bbnsm = devm_kzalloc(dev, sizeof(*bbnsm), GFP_KERNEL);
+	if (!bbnsm)
+		return -ENOMEM;
+
+	bbnsm->ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_IMX_BBM, &ph);
+	if (IS_ERR(bbnsm->ops))
+		return PTR_ERR(bbnsm->ops);
+
+	bbnsm->ph = ph;
+
+	device_init_wakeup(dev, true);
+
+	dev_set_drvdata(dev, bbnsm);
+
+	ret = scmi_imx_bbm_rtc_init(sdev);
+	if (ret)
+		device_init_wakeup(dev, false);
+
+	return ret;
+}
+
+static const struct scmi_device_id scmi_id_table[] = {
+	{ SCMI_PROTOCOL_IMX_BBM, "imx-bbm-rtc" },
+	{ },
+};
+MODULE_DEVICE_TABLE(scmi, scmi_id_table);
+
+static struct scmi_driver scmi_imx_bbm_rtc_driver = {
+	.name = "scmi-imx-bbm-rtc",
+	.probe = scmi_imx_bbm_rtc_probe,
+	.id_table = scmi_id_table,
+};
+module_scmi_driver(scmi_imx_bbm_rtc_driver);
+
+MODULE_AUTHOR("Peng Fan <peng.fan@nxp.com>");
+MODULE_DESCRIPTION("IMX SM BBM RTC driver");
+MODULE_LICENSE("GPL");