From 77bbfe607b1d306c88bf96fed00c030f6bf462f1 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Wed, 4 Oct 2023 07:42:23 +0800 Subject: firmware: arm_scmi: Add support for clock parents SCMI v3.2 spec introduces CLOCK_POSSIBLE_PARENTS_GET, CLOCK_PARENT_SET and CLOCK_PARENT_GET. Add support for these to enable clock parents and use them in the clock driver. Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan Link: https://lore.kernel.org/r/20231004-scmi-clock-v3-v5-1-1b8a1435673e@nxp.com Signed-off-by: Sudeep Holla --- include/linux/scmi_protocol.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index 27bfa5a65b45..f2f05fb42d28 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -58,6 +58,8 @@ struct scmi_clock_info { u64 step_size; } range; }; + int num_parents; + u32 *parents; }; enum scmi_power_scale { @@ -83,6 +85,8 @@ struct scmi_protocol_handle; * @state_get: get the status of the specified clock * @config_oem_get: get the value of an OEM specific clock config * @config_oem_set: set the value of an OEM specific clock config + * @parent_get: get the parent id of a clk + * @parent_set: set the parent of a clock */ struct scmi_clk_proto_ops { int (*count_get)(const struct scmi_protocol_handle *ph); @@ -104,6 +108,8 @@ struct scmi_clk_proto_ops { bool atomic); int (*config_oem_set)(const struct scmi_protocol_handle *ph, u32 clk_id, u8 oem_type, u32 oem_val, bool atomic); + int (*parent_get)(const struct scmi_protocol_handle *ph, u32 clk_id, u32 *parent_id); + int (*parent_set)(const struct scmi_protocol_handle *ph, u32 clk_id, u32 parent_id); }; struct scmi_perf_domain_info { -- cgit v1.2.3