diff options
| author | Benjamin Gaignard <benjamin.gaignard@collabora.com> | 2022-09-19 15:13:02 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2022-10-23 12:23:21 +0300 |
| commit | 1a1da28544fd869824d2ffe1b7b2b03689d69dc1 (patch) | |
| tree | 2deaee65ed53729d10afded691747066fc8ab039 /drivers/soc/imx | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
| download | linux-1a1da28544fd869824d2ffe1b7b2b03689d69dc1.tar.xz | |
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: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/soc/imx')
| -rw-r--r-- | drivers/soc/imx/imx8m-blk-ctrl.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c index 00879615a701..ddcf6be3d8b4 100644 --- a/drivers/soc/imx/imx8m-blk-ctrl.c +++ b/drivers/soc/imx/imx8m-blk-ctrl.c @@ -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)) - return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev), - "failed to attach power domain \"bus\"\n"); + 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]; |