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Message-ID: <77fc604a10f4a3055c2c29ff6aa7a253a8b9bc7f.1715340537.git.alina_yu@richtek.com> Date: Fri, 10 May 2024 20:06:23 +0800 From: Alina Yu <alina_yu@...htek.com> To: <lgirdwood@...il.com>, <broonie@...nel.org>, <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org> CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>, <alina_yu@...htek.com>, <johnny_lai@...htek.com>, <cy_huang@...htek.com> Subject: [PATCH v3 4/6] regulator: rtq2208: Fix the BUCK ramp_delay range to maximum of 16mVstep/us The maximum ramp up and down range of BUCK are shorten from 64mVstep/us to 16mVstep/us. Therefore, the RTQ2208_RAMP_VALUE_MAX_uV is modified to 16000uV in this version. Signed-off-by: Alina Yu <alina_yu@...htek.com> --- drivers/regulator/rtq2208-regulator.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/regulator/rtq2208-regulator.c b/drivers/regulator/rtq2208-regulator.c index cea8e77..2e9387f 100644 --- a/drivers/regulator/rtq2208-regulator.c +++ b/drivers/regulator/rtq2208-regulator.c @@ -53,7 +53,7 @@ /* Value */ #define RTQ2208_RAMP_VALUE_MIN_uV 500 -#define RTQ2208_RAMP_VALUE_MAX_uV 64000 +#define RTQ2208_RAMP_VALUE_MAX_uV 16000 #define RTQ2208_BUCK_MASK(uv_irq, ov_irq) (1 << ((uv_irq) % 8) | 1 << ((ov_irq) % 8)) @@ -147,12 +147,11 @@ static int rtq2208_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) * Because the relation of seleltion and value is like that * * seletion: value - * 000: 64mv - * 001: 32mv + * 010: 16mv * ... * 111: 0.5mv * - * For example, if I would like to select 64mv, the fls(ramp_delay) - 1 will be 0b111, + * For example, if I would like to select 16mv, the fls(ramp_delay) - 1 will be 0b010, * and I need to use 0b111 - sel to do the shifting */ -- 2.7.4
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