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power: imx8m-power-domain: Add delay to align with kernel driver

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In the imx8m power domain kernel driver, there is an extra udelay(5)
prior to requesting the domain to power up:

https://github.com/torvalds/linux/blob/v6.3/drivers/soc/imx/gpcv2.c#L347-L375

Haven't observed any issues due to the lack of this delay in U-Boot yet,
but better to align it with the kernel driver implementation.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Fabio Estevam 2023-05-06 13:14:02 -03:00 committed by Stefano Babic
parent 79e315761c
commit 8f70f3df62
1 changed files with 3 additions and 0 deletions
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3
drivers/power/domain/imx8m-power-domain.c
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@ -338,6 +338,9 @@ static int imx8m_power_domain_on(struct power_domain *power_domain)
}
}
/* delay for reset to propagate */
udelay(5);
if (domain->bits.pxx) {
/* request the domain to power up */
setbits_le32(base + regs->pup, domain->bits.pxx);