In case the DC-DC is already enabled mxs_enable_4p2_dcdc_input() returns without reenabling brown out detection. So fix this issue by moving the return before brown out deactivation.
Signed-off-by: Stefan Wahren stefan.wahren@i2se.com --- arch/arm/cpu/arm926ejs/mxs/spl_power_init.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c index c342217..42f3df2 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c @@ -332,6 +332,11 @@ static void mxs_enable_4p2_dcdc_input(int xfer)
debug("SPL: %s 4P2 DC-DC Input\n", xfer ? "Enabling" : "Disabling");
+ if (xfer && (readl(&power_regs->hw_power_5vctrl) & + POWER_5VCTRL_ENABLE_DCDC)) { + return; + } + prev_5v_brnout = readl(&power_regs->hw_power_5vctrl) & POWER_5VCTRL_PWDN_5VBRNOUT; prev_5v_droop = readl(&power_regs->hw_power_ctrl) & @@ -343,11 +348,6 @@ static void mxs_enable_4p2_dcdc_input(int xfer)
clrbits_le32(&power_regs->hw_power_ctrl, POWER_CTRL_ENIRQ_VDD5V_DROOP);
- if (xfer && (readl(&power_regs->hw_power_5vctrl) & - POWER_5VCTRL_ENABLE_DCDC)) { - return; - } - /* * Recording orignal values that will be modified temporarlily * to handle a chip bug. See chip errata for CQ ENGR00115837