[PATCH] ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask
From: Colin King <hidden>
Date: 2016-10-24 11:00:29
Also in:
linux-omap, lkml
Subsystem:
arm port, omap powerdomain soc adaptation layer support, omap2+ support, the rest · Maintainers:
Russell King, Paul Walmsley, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds
From: Colin Ian King <redacted> In the case where has_uart4 is false, en_uart4_mask and grpsel_uart4_mask are not initialized and so any garbage value is being logically or'd into the write of PM_WKEN and OMAP3430_PM_MPUGRPSEL. Fix this by initializing these masks to zero. Signed-off-by: Colin Ian King <redacted> --- arch/arm/mach-omap2/prm3xxx.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 62680aa..718981b 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c@@ -319,6 +319,9 @@ void __init omap3_prm_init_pm(bool has_uart4, bool has_iva) if (has_uart4) { en_uart4_mask = OMAP3630_EN_UART4_MASK; grpsel_uart4_mask = OMAP3630_GRPSEL_UART4_MASK; + } else { + en_uart4_mask = 0; + grpsel_uart4_mask = 0; } /* Enable wakeups in PER */
--
2.9.3