Commit 1a1da285 authored by Benjamin Gaignard's avatar Benjamin Gaignard Committed by Shawn Guo
Browse files

soc: imx: imx8m-blk-ctrl: Defer probe if 'bus' genpd is not yet ready 



Depending of the boot sequence 'bus' genpd could be probed after imx8m-blk-ctrl
which led driver probe to fail. Change the returned error to allow
to defer the probe in this case.

Signed-off-by: default avatarBenjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: default avatarPeng Fan <peng.fan@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 9abf2313

drivers/soc/imx/imx8m-blk-ctrl.c

+8 −3
Original line number Diff line number Diff line
@@ -210,9 +210,14 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev) 
		return -ENOMEM;



	bc->bus_power_dev = genpd_dev_pm_attach_by_name(dev, "bus");

	if (IS_ERR(bc->bus_power_dev))

	if (IS_ERR(bc->bus_power_dev)) {

		if (PTR_ERR(bc->bus_power_dev) == -ENODEV)

			return dev_err_probe(dev, -EPROBE_DEFER,

					     "failed to attach power domain \"bus\"\n");

		else

			return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev),

					     "failed to attach power domain \"bus\"\n");

	}



	for (i = 0; i < bc_data->num_domains; i++) {

		const struct imx8m_blk_ctrl_domain_data *data = &bc_data->domains[i];