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power: domain: ti: Extend use of PTCMD and PTSTAT registers for high PDs

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It is possible for power domain IDs to be great than 31. If this
happens, the PTCMD and PTSTAT registers must overflow into adjacent
corresponding PTCMD_H and PTSTAT_H registers for each. Update the driver
to account for this.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
This commit is contained in:
Dave Gerlach 2022-04-01 20:02:48 -05:00 committed by Tom Rini
parent 585fc1c8c5
commit e9598cfb28
1 changed files with 20 additions and 3 deletions
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23
drivers/power/domain/ti-power-domain.c
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@ -16,7 +16,9 @@
#include <linux/iopoll.h>
#define PSC_PTCMD 0x120
#define PSC_PTCMD_H 0x124
#define PSC_PTSTAT 0x128
#define PSC_PTSTAT_H 0x12C
#define PSC_PDSTAT 0x200
#define PSC_PDCTL 0x300
#define PSC_MDSTAT 0x800
@ -120,10 +122,17 @@ static int ti_power_domain_probe(struct udevice *dev)
static int ti_pd_wait(struct ti_pd *pd)
{
u32 ptstat;
u32 pdoffset = 0;
u32 ptstatreg = PSC_PTSTAT;
int ret;
ret = readl_poll_timeout(pd->psc->base + PSC_PTSTAT, ptstat,
!(ptstat & BIT(pd->id)), PD_TIMEOUT);
if (pd->id > 31) {
pdoffset = 32;
ptstatreg = PSC_PTSTAT_H;
}
ret = readl_poll_timeout(pd->psc->base + ptstatreg, ptstat,
!(ptstat & BIT(pd->id - pdoffset)), PD_TIMEOUT);
if (ret)
printf("%s: psc%d, pd%d failed to transition.\n", __func__,
@ -134,7 +143,15 @@ static int ti_pd_wait(struct ti_pd *pd)
static void ti_pd_transition(struct ti_pd *pd)
{
psc_write(BIT(pd->id), pd->psc, PSC_PTCMD);
u32 pdoffset = 0;
u32 ptcmdreg = PSC_PTCMD;
if (pd->id > 31) {
pdoffset = 32;
ptcmdreg = PSC_PTCMD_H;
}
psc_write(BIT(pd->id - pdoffset), pd->psc, ptcmdreg);
}
u8 ti_pd_state(struct ti_pd *pd)