From: Alina Yu <alina_yu@richtek.com>
To: <lgirdwood@gmail.com>, <broonie@kernel.org>, <robh+dt@kernel.org>,
<krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<alina_yu@richtek.com>, <johnny_lai@richtek.com>,
<cy_huang@richtek.com>
Subject: [PATCH v3 4/6] regulator: rtq2208: Fix the BUCK ramp_delay range to maximum of 16mVstep/us
Date: Fri, 10 May 2024 20:06:23 +0800 [thread overview]
Message-ID: <77fc604a10f4a3055c2c29ff6aa7a253a8b9bc7f.1715340537.git.alina_yu@richtek.com> (raw)
In-Reply-To: <cover.1715340537.git.alina_yu@richtek.com>
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@richtek.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
next prev parent reply other threads:[~2024-05-10 12:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-10 12:06 [PATCH v3 0/6] Fix rtq2208 BUCK ramp_delay and LDO dvs setting Alina Yu
2024-05-10 12:06 ` [PATCH v3 1/6] regulator: rtq2208: Fix invalid memory access when devm_of_regulator_put_matches is called Alina Yu
2024-05-15 15:47 ` Mark Brown
2024-05-27 9:31 ` Alina Yu
2024-05-10 12:06 ` [PATCH v3 2/6] regulator: rtq2208: Fix LDO vsel setting Alina Yu
2024-05-10 12:06 ` [PATCH v3 3/6] regulator: rtq2208: Fix LDO discharge register Alina Yu
2024-05-10 12:06 ` Alina Yu [this message]
2024-05-10 12:06 ` [PATCH v3 5/6] regulator: rtq2208: Fix LDO to be compatible with both fixed and adjustable vout Alina Yu
2024-05-10 12:06 ` [PATCH v3 6/6] regulator: dt-bindings: rtq2208: Add property to get ldo of RTQ2208 is adjustable or not Alina Yu
2024-05-13 16:22 ` Conor Dooley
2024-05-14 10:34 ` Mark Brown
2024-05-14 18:01 ` Conor Dooley
2024-05-15 7:38 ` Alina Yu
2024-05-15 8:06 ` Conor Dooley
2024-05-15 9:02 ` Alina Yu
2024-05-15 15:51 ` Conor Dooley
2024-05-15 16:04 ` Mark Brown
2024-05-15 16:16 ` Conor Dooley
2024-05-15 12:10 ` Mark Brown
2024-05-15 15:48 ` Conor Dooley
2024-05-29 11:21 ` (subset) [PATCH v3 0/6] Fix rtq2208 BUCK ramp_delay and LDO dvs setting Mark Brown
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