From: Tim Harvey Date: Fri, 11 Jun 2021 19:46:23 +0000 (-0700) Subject: imx: ventana: put PFUZ100 regulators in continuous mode X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=722d22813e1b79231451059a823d777e2c0867e7;p=u-boot.git imx: ventana: put PFUZ100 regulators in continuous mode In the default 'auto' mode regulators that are very lightly loaded can be put in PFM mode and fail to regulator properly. Switching them to always use continuous PWM mode has a neglibable affect on system power and garuntees proper regulation under lightly loaded circumstances. Signed-off-by: Tim Harvey --- diff --git a/board/gateworks/gw_ventana/common.c b/board/gateworks/gw_ventana/common.c index 9f5f20f781..b5a0162c5e 100644 --- a/board/gateworks/gw_ventana/common.c +++ b/board/gateworks/gw_ventana/common.c @@ -1596,6 +1596,32 @@ void setup_pmic(void) pmic_reg_write(p, PFUZE100_VGEN6VOL, reg); } } + + /* put all switchers in continuous mode */ + pmic_reg_read(p, PFUZE100_SW1ABMODE, ®); + reg &= ~(SW_MODE_MASK); + reg |= PWM_PWM; + pmic_reg_write(p, PFUZE100_SW1ABMODE, reg); + + pmic_reg_read(p, PFUZE100_SW2MODE, ®); + reg &= ~(SW_MODE_MASK); + reg |= PWM_PWM; + pmic_reg_write(p, PFUZE100_SW2MODE, reg); + + pmic_reg_read(p, PFUZE100_SW3AMODE, ®); + reg &= ~(SW_MODE_MASK); + reg |= PWM_PWM; + pmic_reg_write(p, PFUZE100_SW3AMODE, reg); + + pmic_reg_read(p, PFUZE100_SW3BMODE, ®); + reg &= ~(SW_MODE_MASK); + reg |= PWM_PWM; + pmic_reg_write(p, PFUZE100_SW3BMODE, reg); + + pmic_reg_read(p, PFUZE100_SW4MODE, ®); + reg &= ~(SW_MODE_MASK); + reg |= PWM_PWM; + pmic_reg_write(p, PFUZE100_SW4MODE, reg); } /* configure LTC3676 PMIC */