On the OMAP AM3517 platform the uart4_ick gets registered
twice, causing any power managment to /dev/ttyO3 to fail
when trying to wake the device up.
This solves the following oops:
[] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa09e008
[] PC is at serial_omap_pm+0x48/0x15c
[] LR is at _raw_spin_unlock_irqrestore+0x30/0x5c
Cc: stable@xxxxxxxxxxxxxxx
Cc: mturquette@xxxxxxxxxxxx
Cc: sboyd@xxxxxxxxxxxxxx
Cc: linux-clk@xxxxxxxxxxxxxxx
Cc: linux-omap@xxxxxxxxxxxxxxx
Cc: t-kristo@xxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
--
v2:
- fix omap36xx series clock registration for uart4
---
drivers/clk/ti/clk-3xxx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c
index 5e12f32..8d94b97 100644
--- a/drivers/clk/ti/clk-3xxx.c
+++ b/drivers/clk/ti/clk-3xxx.c
@@ -374,7 +374,6 @@ static struct ti_dt_clk omap3xxx_clks[] = {
DT_CLK(NULL, "gpio2_ick", "gpio2_ick"),
DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
DT_CLK(NULL, "uart3_ick", "uart3_ick"),
- DT_CLK(NULL, "uart4_ick", "uart4_ick"),
DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
@@ -523,6 +522,7 @@ static struct ti_dt_clk am35xx_clks[] = {
static struct ti_dt_clk omap36xx_clks[] = {
DT_CLK(NULL, "omap_192m_alwon_fck", "omap_192m_alwon_fck"),
DT_CLK(NULL, "uart4_fck", "uart4_fck"),
+ DT_CLK(NULL, "uart4_ick", "uart4_ick"),
{ .node_name = NULL },
};
--
2.5.3
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