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imx: power-domain: Enable refcounting on imx8mp

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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>
This commit is contained in:
Miquel Raynal 2025-04-25 08:49:33 +02:00 committed by Fabio Estevam
parent 9086b64ca0
commit a785ef2448
3 changed files with 12 additions and 0 deletions
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4
drivers/power/domain/imx8m-power-domain.c
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@ -506,8 +506,12 @@ static int imx8m_power_domain_bind(struct udevice *dev)
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;

4
drivers/power/domain/imx8mp-hsiomix.c
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@ -201,8 +201,12 @@ int imx8mp_hsiomix_bind(struct udevice *dev)
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);

4
drivers/power/domain/imx8mp-mediamix.c
View File

@ -143,9 +143,13 @@ static int imx8mp_mediamix_bind(struct udevice *dev)
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);