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| author | Etienne Carriere <etienne.carriere@linaro.org> | 2020-09-09 18:44:04 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-09-30 11:55:23 -0400 |
| commit | 60388844836f5639e6c9a4331335ff22298128da (patch) | |
| tree | b5f9e60ab477d740c2542cd123d0d81eb0c862dd /drivers/firmware | |
| parent | 4e5ce7ecd3ed734245b00a4068d6c86009e8b7ab (diff) | |
| download | u-boot-60388844836f5639e6c9a4331335ff22298128da.tar.gz u-boot-60388844836f5639e6c9a4331335ff22298128da.tar.bz2 u-boot-60388844836f5639e6c9a4331335ff22298128da.zip | |
clk: add clock driver for SCMI agents
This change introduces a clock driver for SCMI agent devices. When
SCMI agent and SCMI clock drivers are enabled, SCMI agent binds a
clock device for each SCMI clock protocol devices enabled in the FDT.
SCMI clock driver is embedded upon CONFIG_CLK_SCMI=y. If enabled,
CONFIG_SCMI_AGENT is also enabled.
SCMI Clock protocol is defined in the SCMI specification [1].
Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/scmi/scmi_agent-uclass.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c index 67a6f907c9..1f36f23b6d 100644 --- a/drivers/firmware/scmi/scmi_agent-uclass.c +++ b/drivers/firmware/scmi/scmi_agent-uclass.c @@ -58,9 +58,9 @@ static int scmi_bind_protocols(struct udevice *dev) { int ret = 0; ofnode node; - struct driver *drv; dev_for_each_subnode(node, dev) { + struct driver *drv = NULL; u32 protocol_id; if (!ofnode_is_available(node)) @@ -70,9 +70,17 @@ static int scmi_bind_protocols(struct udevice *dev) continue; switch (protocol_id) { + case SCMI_PROTOCOL_ID_CLOCK: + if (IS_ENABLED(CONFIG_CLK_SCMI)) + drv = DM_GET_DRIVER(scmi_clock); + break; default: - dev_info(dev, "Ignore unsupported SCMI protocol %#x\n", - protocol_id); + break; + } + + if (!drv) { + dev_dbg(dev, "Ignore unsupported SCMI protocol %#x\n", + protocol_id); continue; } |