Starting with omap4, UARTs have different revision register that we need to detect to enable SYSC_QUIRK_LEGACY_IDLE. Otherwise UARTs won't idle properly.
Signed-off-by: Tony Lindgren <[email protected]> --- drivers/bus/ti-sysc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -880,6 +880,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK_LEGACY_IDLE), SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000052, 0xffffffff, SYSC_QUIRK_LEGACY_IDLE), + /* Uarts on omap4 and later */ + SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x50411e03, 0xffffffff, + SYSC_QUIRK_LEGACY_IDLE), }; static void sysc_init_revision_quirks(struct sysc *ddata) -- 2.17.0
