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authorTony Lindgren <tony@atomide.com>2018-04-16 20:25:32 +0300
committerTony Lindgren <tony@atomide.com>2018-05-01 16:54:17 +0300
commitd708bb14971ce797ac6d64aea19e2f8f41859f54 (patch)
tree664f35aa2215797a9004c6f37dac87792ff22547 /drivers/bus
parent8cde5d5f7361fd152dd67df552596919d89ac404 (diff)
downloadlinux-d708bb14971ce797ac6d64aea19e2f8f41859f54.tar.xz
bus: ti-sysc: Detect UARTs for SYSC_QUIRK_LEGACY_IDLE quirk on omap4
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>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/ti-sysc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index b7cf5cdc6891..2cb9dbb537e0 100644
--- 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)