imx: power-domain: Enable refcounting on imx8mp
Prevent enabling/disabling multiple times the same power domain to avoid
breakages due to the same power domains being referenced several times
by different device nodes.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/drivers/power/domain/imx8m-power-domain.c b/drivers/power/domain/imx8m-power-domain.c
index e54ba5d..b44aae7 100644
--- a/drivers/power/domain/imx8m-power-domain.c
+++ b/drivers/power/domain/imx8m-power-domain.c
@@ -506,8 +506,12 @@
static int imx8m_power_domain_probe(struct udevice *dev)
{
struct imx8m_power_domain_plat *pdata = dev_get_plat(dev);
+ struct power_domain_plat *plat = dev_get_uclass_plat(dev);
int ret;
+ /* Every subdomain has its own device node */
+ plat->subdomains = 1;
+
/* Nothing to do for non-"power-domain" driver instances. */
if (!strstr(dev->name, "power-domain"))
return 0;
diff --git a/drivers/power/domain/imx8mp-hsiomix.c b/drivers/power/domain/imx8mp-hsiomix.c
index 455ad53..1ca4388 100644
--- a/drivers/power/domain/imx8mp-hsiomix.c
+++ b/drivers/power/domain/imx8mp-hsiomix.c
@@ -201,8 +201,12 @@
static int imx8mp_hsiomix_probe(struct udevice *dev)
{
struct imx8mp_hsiomix_priv *priv = dev_get_priv(dev);
+ struct power_domain_plat *plat = dev_get_uclass_plat(dev);
int ret;
+ /* Definitions are in imx8mp-power.h */
+ plat->subdomains = 5;
+
priv->base = dev_read_addr_ptr(dev);
ret = clk_get_by_name(dev, "usb", &priv->clk_usb);
diff --git a/drivers/power/domain/imx8mp-mediamix.c b/drivers/power/domain/imx8mp-mediamix.c
index 78c32ca..504c22f 100644
--- a/drivers/power/domain/imx8mp-mediamix.c
+++ b/drivers/power/domain/imx8mp-mediamix.c
@@ -143,9 +143,13 @@
static int imx8mp_mediamix_probe(struct udevice *dev)
{
+ struct power_domain_plat *plat = dev_get_uclass_plat(dev);
struct imx8mp_mediamix_priv *priv = dev_get_priv(dev);
int ret;
+ /* Definitions are in imx8mp-power.h */
+ plat->subdomains = 9;
+
priv->base = dev_read_addr_ptr(dev);
ret = clk_get_by_name(dev, "apb", &priv->clk_apb);