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ti-sysc: allow OMAP2 and OMAP4 timers to be reserved on AM33xx

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[ Upstream commit 3f61783920504b2cf99330b372d82914bb004d8e ]

am33xx.dtsi has the same clock setup as am35xx.dtsi, setting
ti,no-reset-on-init and ti,no-idle on timer1_target and timer2_target,
so AM33 needs the same workaround as AM35 to avoid ti-sysc probe
failing on certain target modules.

Signed-off-by: Matthias Schiffer <matthias.schiffer@tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250825131114.2206804-1-alexander.stein@ew.tq-group.com
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthias Schiffer
2025-08-25 15:11:13 +02:00
committed by Greg Kroah-Hartman
parent a6f1ced333
commit cad4dfddaf
1 changed files with 9 additions and 2 deletions
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11
drivers/bus/ti-sysc.c
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@@ -37,6 +37,7 @@ enum sysc_soc {
SOC_UNKNOWN,
SOC_2420,
SOC_2430,
SOC_AM33,
SOC_3430,
SOC_AM35,
SOC_3630,
@@ -2996,6 +2997,7 @@ static void ti_sysc_idle(struct work_struct *work)
static const struct soc_device_attribute sysc_soc_match[] = {
SOC_FLAG("OMAP242*", SOC_2420),
SOC_FLAG("OMAP243*", SOC_2430),
SOC_FLAG("AM33*", SOC_AM33),
SOC_FLAG("AM35*", SOC_AM35),
SOC_FLAG("OMAP3[45]*", SOC_3430),
SOC_FLAG("OMAP3[67]*", SOC_3630),
@@ -3201,10 +3203,15 @@ static int sysc_check_active_timer(struct sysc *ddata)
* can be dropped if we stop supporting old beagleboard revisions
* A to B4 at some point.
*/
if (sysc_soc->soc == SOC_3430 || sysc_soc->soc == SOC_AM35)
switch (sysc_soc->soc) {
case SOC_AM33:
case SOC_3430:
case SOC_AM35:
error = -ENXIO;
else
break;
default:
error = -EBUSY;
}
if ((ddata->cfg.quirks & SYSC_QUIRK_NO_RESET_ON_INIT) &&
(ddata->cfg.quirks & SYSC_QUIRK_NO_IDLE))