From: Colin Ian King Date: Mon, 24 Oct 2016 11:00:21 +0000 (+0100) Subject: ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4ae46efcff19445afbf49fe7038de6020f37fefe;p=linux-beck.git ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask 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 Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index 62680aad2126..718981bb80cd 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 */