[PATCH v6 2/2] soc: imx: gpcv2: fix suspend/resume by setting GENPD_FLAG_IRQ_ON

[Martin Kepplinger]

For boards that use power-domains' power-supplies that need interrupts
to work (like regulator over i2c), set GENPD_FLAG_IRQ_ON.
This will tell genpd to adjust accordingly. Currently it "only" sets the
correct suspend/resume callbacks.

This fixes suspend/resume on imx8mq-librem5 boards (tested) and
imx8mq-evk (by looking at dts) and possibly more.

Signed-off-by: Martin Kepplinger <martin.kepplinger at puri.sm>
---
 drivers/soc/imx/gpcv2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
index 6383a4edc360..199a621d8186 100644
--- a/drivers/soc/imx/gpcv2.c
+++ b/drivers/soc/imx/gpcv2.c
@@ -1337,6 +1337,9 @@ static int imx_pgc_domain_probe(struct platform_device *pdev)
 		regmap_update_bits(domain->regmap, domain->regs->map,
 				   domain->bits.map, domain->bits.map);
 
+	if (of_property_read_bool(domain->dev->of_node, "power-supply"))
+		domain->genpd.flags |= GENPD_FLAG_IRQ_ON;
+
 	ret = pm_genpd_init(&domain->genpd, NULL, true);
 	if (ret) {
 		dev_err(domain->dev, "Failed to init power domain\n");
-- 
2.30.2