clk: ti: fix dual-registration of uart4_ick

commit 19e79687de22f23bcfb5e79cce3daba20af228d1 upstream.

On the OMAP AM3517 platform the uart4_ick gets registered
twice, causing any power management 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

Fixes: aafd900cab87 ("CLK: TI: add omap3 clock init file")
Cc: mturquette@baylibre.com
Cc: sboyd@codeaurora.org
Cc: linux-clk@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-kernel@lists.codethink.co.uk
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c
index 0d1750a8aea40db16a470c697418d1dbd8b6bb45..088930c3ee4b0c5dc3673cc02e2f52702b1012fc 100644 (file)
--- a/drivers/clk/ti/clk-3xxx.c
+++ b/drivers/clk/ti/clk-3xxx.c
@@ -170,7 +170,6 @@ 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"),
@@ -313,6 +312,7 @@ 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 },
 };