pmdomain: imx93-blk-ctrl: add support for optional subnodes

This particular block can have DT subnodes describing the LVDS LDB, MIPI
DSI and parallel DPI bridge.

Scan for possible sub-devices within the driver, instead of misusing the
simple-bus to perform the scan.

Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/pmdomain/imx/imx93-blk-ctrl.c b/drivers/pmdomain/imx/imx93-blk-ctrl.c
index 49610f2389c3bbaf4de4133918fbcacb7924f672..1afc78b034fad8fa09a3e8527586387156fc2543 100644 (file)
--- a/drivers/pmdomain/imx/imx93-blk-ctrl.c
+++ b/drivers/pmdomain/imx/imx93-blk-ctrl.c
@@ -7,6 +7,7 @@
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
@@ -313,6 +314,10 @@ static int imx93_blk_ctrl_probe(struct platform_device *pdev)
        if (ret)
                return dev_err_probe(dev, ret, "failed to add genpd_provider release callback\n");
 
+       ret = devm_of_platform_populate(dev);
+       if (ret)
+               return dev_err_probe(dev, ret, "failed to populate blk-ctrl sub-devices\n");
+
        return 0;
 }