linux-kernel - [PATCH RFT] regulator: palmas: Fix min

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Date:	Fri, 19 Apr 2013 00:53:52 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Laxman Dewangan <ldewangan@...dia.com>,
	Graeme Gregory <gg@...mlogic.co.uk>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH RFT] regulator: palmas: Fix min_uV for LDO8 tracking mode

When SMPS45 is set to off and LDO8 tracking is enabled, the output voltage can
be set from 0.45 to 1.65 V. Thus set min_uV to be 450000.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
Hi Laxman,
My understanding is based on your comment in the code.
        /*
         * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
         * output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
         * and can be set from 0.45 to 1.65 V.
         */

Can you confirm if this patch is correct or not?
Axel

 drivers/regulator/palmas-regulator.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index d6efaf1..452d987 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -886,6 +886,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			if (pdata && (id == PALMAS_REG_LDO8) &&
 					pdata->enable_ldo8_tracking) {
 				palmas_enable_ldo8_track(palmas);
+				pmic->desc[id].min_uV = 450000;
 				pmic->desc[id].uV_step = 25000;
 			}
 		} else {
-- 
1.7.10.4



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