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| author | Ingo Molnar <mingo@kernel.org> | 2024-01-08 12:57:28 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-01-08 12:57:28 +0100 |
| commit | cdb3033e191fd03da2d7da23b9cd448dfa180a8e (patch) | |
| tree | e863d55e63bea2bc9c18652e0d7291fec5e5cd23 /drivers/bus/ti-sysc.c | |
| parent | fbb66ce0b1d670c72def736a13ac9176b860df4e (diff) | |
| parent | f60a631ab9ed5df15e446269ea515f2b8948ba0c (diff) | |
| download | linux-cdb3033e191fd03da2d7da23b9cd448dfa180a8e.tar.gz linux-cdb3033e191fd03da2d7da23b9cd448dfa180a8e.tar.bz2 linux-cdb3033e191fd03da2d7da23b9cd448dfa180a8e.zip | |
Merge branch 'sched/urgent' into sched/core, to pick up pending v6.7 fixes for the v6.8 merge window
This fix didn't make it upstream in time, pick it up
for the v6.8 merge window.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/bus/ti-sysc.c')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index d57bc066dce6..9ed9239b1228 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -2158,13 +2158,23 @@ static int sysc_reset(struct sysc *ddata) sysc_val = sysc_read_sysconfig(ddata); sysc_val |= sysc_mask; sysc_write(ddata, sysc_offset, sysc_val); - /* Flush posted write */ + + /* + * Some devices need a delay before reading registers + * after reset. Presumably a srst_udelay is not needed + * for devices that use a rstctrl register reset. + */ + if (ddata->cfg.srst_udelay) + fsleep(ddata->cfg.srst_udelay); + + /* + * Flush posted write. For devices needing srst_udelay + * this should trigger an interconnect error if the + * srst_udelay value is needed but not configured. + */ sysc_val = sysc_read_sysconfig(ddata); } - if (ddata->cfg.srst_udelay) - fsleep(ddata->cfg.srst_udelay); - if (ddata->post_reset_quirk) ddata->post_reset_quirk(ddata); |