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bus: ti-sysc: Detect UARTs for SYSC_QUIRK_LEGACY_IDLE quirk on omap4

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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 <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2018-04-16 10:25:32 -07:00
parent 8cde5d5f73
commit d708bb1497
1 changed files with 3 additions and 0 deletions
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3
drivers/bus/ti-sysc.c
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@ -880,6 +880,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_QUIRK_LEGACY_IDLE), SYSC_QUIRK_LEGACY_IDLE),
SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000052, 0xffffffff, SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000052, 0xffffffff,
SYSC_QUIRK_LEGACY_IDLE), 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) static void sysc_init_revision_quirks(struct sysc *ddata)