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The driver is to add the support. Signed-off-by: Peng Fan --- drivers/firmware/imx/Makefile | 1 + drivers/firmware/imx/sm-misc.c | 108 ++++++++++++++++++++++++++++++++++++++++ include/linux/firmware/imx/sm.h | 33 ++++++++++++ 3 files changed, 142 insertions(+) diff --git a/drivers/firmware/imx/Makefile b/drivers/firmware/imx/Makefile index fb20e22074e1..cb9c361d9b81 100644 --- a/drivers/firmware/imx/Makefile +++ b/drivers/firmware/imx/Makefile @@ -2,3 +2,4 @@ obj-$(CONFIG_IMX_DSP) += imx-dsp.o obj-$(CONFIG_IMX_SCU) += imx-scu.o misc.o imx-scu-irq.o rm.o imx-scu-soc.o obj-${CONFIG_IMX_SCMI_BBM_EXT} += sm-bbm.o +obj-${CONFIG_IMX_SCMI_MISC_EXT} += sm-misc.o diff --git a/drivers/firmware/imx/sm-misc.c b/drivers/firmware/imx/sm-misc.c new file mode 100644 index 000000000000..22c1a5819425 --- /dev/null +++ b/drivers/firmware/imx/sm-misc.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2024 NXP. + */ + +#include +#include +#include +#include +#include +#include + +static const struct scmi_imx_misc_proto_ops *imx_misc_ctrl_ops; +static struct scmi_protocol_handle *ph; +struct notifier_block scmi_imx_misc_ctrl_nb; + +int scmi_imx_misc_ctrl_set(u32 id, u32 val) +{ + if (!ph) + return -EPROBE_DEFER; + + return imx_misc_ctrl_ops->misc_ctrl_set(ph, id, 1, &val); +}; +EXPORT_SYMBOL(scmi_imx_misc_ctrl_set); + +int scmi_imx_misc_ctrl_get(u32 id, u32 *num, u32 *val) +{ + if (!ph) + return -EPROBE_DEFER; + + return imx_misc_ctrl_ops->misc_ctrl_get(ph, id, num, val); +} +EXPORT_SYMBOL(scmi_imx_misc_ctrl_get); + +static int scmi_imx_misc_ctrl_notifier(struct notifier_block *nb, + unsigned long event, void *data) +{ + return 0; +} + +static int scmi_imx_misc_ctrl_probe(struct scmi_device *sdev) +{ + const struct scmi_handle *handle = sdev->handle; + struct device_node *np = sdev->dev.of_node; + u32 src_id, flags; + int ret, i, num; + + if (!handle) + return -ENODEV; + + imx_misc_ctrl_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_IMX_MISC, &ph); + if (IS_ERR(imx_misc_ctrl_ops)) + return PTR_ERR(imx_misc_ctrl_ops); + + scmi_imx_misc_ctrl_nb.notifier_call = &scmi_imx_misc_ctrl_notifier; + num = of_property_count_u32_elems(np, "nxp,ctrl-ids"); + if (num % 2) { + dev_err(&sdev->dev, "Invalid wakeup-sources\n"); + return -EINVAL; + } + + for (i = 0; i < num; i += 2) { + ret = of_property_read_u32_index(np, "nxp,ctrl-ids", i, &src_id); + if (ret) { + dev_err(&sdev->dev, "Failed to read ctrl-id: %i\n", i); + continue; + } + + ret = of_property_read_u32_index(np, "nxp,ctrl-ids", i + 1, &flags); + if (ret) { + dev_err(&sdev->dev, "Failed to read ctrl-id value: %d\n", i + 1); + continue; + } + + ret = handle->notify_ops->devm_event_notifier_register(sdev, SCMI_PROTOCOL_IMX_MISC, + SCMI_EVENT_IMX_MISC_CONTROL, + &src_id, + &scmi_imx_misc_ctrl_nb); + if (ret) + dev_err(&sdev->dev, "Failed to register scmi misc event: %d\n", src_id); + else { + ret = imx_misc_ctrl_ops->misc_ctrl_req_notify(ph, src_id, + SCMI_EVENT_IMX_MISC_CONTROL, + flags); + if (ret) + dev_err(&sdev->dev, "Failed to req notify: %d\n", src_id); + } + } + + return 0; +} + +static const struct scmi_device_id scmi_id_table[] = { + { SCMI_PROTOCOL_IMX_MISC, "imx-misc-ctrl" }, + { }, +}; +MODULE_DEVICE_TABLE(scmi, scmi_id_table); + +static struct scmi_driver scmi_imx_misc_ctrl_driver = { + .name = "scmi-imx-misc-ctrl", + .probe = scmi_imx_misc_ctrl_probe, + .id_table = scmi_id_table, +}; +module_scmi_driver(scmi_imx_misc_ctrl_driver); + +MODULE_AUTHOR("Peng Fan "); +MODULE_DESCRIPTION("IMX SM MISC driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/firmware/imx/sm.h b/include/linux/firmware/imx/sm.h new file mode 100644 index 000000000000..daad4bdf7d1c --- /dev/null +++ b/include/linux/firmware/imx/sm.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2024 NXP + */ + +#ifndef _SCMI_IMX_H +#define _SCMI_IMX_H + +#include +#include + +#define SCMI_IMX_CTRL_PDM_CLK_SEL 0 /* AON PDM clock sel */ +#define SCMI_IMX_CTRL_MQS1_SETTINGS 1 /* AON MQS settings */ +#define SCMI_IMX_CTRL_SAI1_MCLK 2 /* AON SAI1 MCLK */ +#define SCMI_IMX_CTRL_SAI3_MCLK 3 /* WAKE SAI3 MCLK */ +#define SCMI_IMX_CTRL_SAI4_MCLK 4 /* WAKE SAI4 MCLK */ +#define SCMI_IMX_CTRL_SAI5_MCLK 5 /* WAKE SAI5 MCLK */ + +#if IS_ENABLED(CONFIG_IMX_SCMI_MISC_EXT) +int scmi_imx_misc_ctrl_get(u32 id, u32 *num, u32 *val); +int scmi_imx_misc_ctrl_set(u32 id, u32 val); +#else +static inline int scmi_imx_misc_ctrl_get(u32 id, u32 *num, u32 *val) +{ + return -EOPNOTSUPP; +} + +static inline int scmi_imx_misc_ctrl_set(u32 id, u32 val); +{ + return -EOPNOTSUPP; +} +#endif +#endif