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imx: power-domain: Descend into pgc subnode if present

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In case the power domain node structure is gpc@303a0000/pgc/power-domain@N,
do not bind power domain driver to the 'pgc' node, but rather descend into
it and only bind power domain drivers to power-domain@N subnodes. This way
we do not waste one useless driver instance associated with 'pgc' node.

Tested-By: Tim Harvey <tharvey@gateworks.com> #imx8mp-venice-defconfig
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Marek Vasut 2022-04-13 00:42:49 +02:00 committed by Stefano Babic
parent 20874a6072
commit 8741d92756
1 changed files with 6 additions and 0 deletions
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6
drivers/power/domain/imx8m-power-domain.c
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@ -73,6 +73,12 @@ static int imx8m_power_domain_bind(struct udevice *dev)
/* Bind the subnode to this driver */
name = fdt_get_name(gd->fdt_blob, offset, NULL);
/* Descend into 'pgc' subnode */
if (!strstr(name, "power-domain")) {
offset = fdt_first_subnode(gd->fdt_blob, offset);
name = fdt_get_name(gd->fdt_blob, offset, NULL);
}
ret = device_bind_with_driver_data(dev, dev->driver, name,
dev->driver_data,
offset_to_ofnode(offset),