[PATCH v16 01/16] accel/rocket: request the core clocks by name

[Jiaxing Hu <gahing@gahingwoo.com>]

From: Igor Paunovic <royalnet026@gmail.com>

rocket_core_init() never sets the .id of the clocks, so all four are
requested with a NULL name and each one resolves to the first clock in the
DT, aclk.

As a result aclk is taken and enabled four times, while hclk, pclk and the
NPU compute clock are never enabled by the driver. It only works today
because the power-domain driver enables those clocks for it.

Give the four clocks their names, in the order the binding defines: aclk,
hclk, npu and pclk.

With that, a DT that lacks any of these clock-names fails probe with
-ENOENT instead of running on the wrong clock.

Fixes: ed98261b4168 ("accel/rocket: Add a new driver for Rockchip's NPU")
Signed-off-by: Igor Paunovic <royalnet026@gmail.com>
Tested-by: Sidong Yang <sidong.yang@furiosa.ai>
Tested-by: Diederik de Haas <diederik@cknow-tech.com>  # NanoPC-T6 LTS, NanoPC-T6 Plus
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Jiaxing Hu <gahing@gahingwoo.com>
[Jiaxing: shortened the commit message]
Signed-off-by: Jiaxing Hu <gahing@gahingwoo.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
---
 drivers/accel/rocket/rocket_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/accel/rocket/rocket_core.c b/drivers/accel/rocket/rocket_core.c
index b3b2fa9ba645..5dd260bacbff 100644
--- a/drivers/accel/rocket/rocket_core.c
+++ b/drivers/accel/rocket/rocket_core.c
@@ -28,6 +28,10 @@ int rocket_core_init(struct rocket_core *core)
 	if (err)
 		return dev_err_probe(dev, err, "failed to get resets for core %d\n", core->index);
 
+	core->clks[0].id = "aclk";
+	core->clks[1].id = "hclk";
+	core->clks[2].id = "npu";
+	core->clks[3].id = "pclk";
 	err = devm_clk_bulk_get(dev, ARRAY_SIZE(core->clks), core->clks);
 	if (err)
 		return dev_err_probe(dev, err, "failed to get clocks for core %d\n", core->index);
-- 
2.43.0