linux-kernel - [PATCH] regulator: vexpress: Add missing n

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Message-ID: <1355213050.7387.1.camel@phoenix>
Date:	Tue, 11 Dec 2012 16:04:10 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Pawel Moll <pawel.moll@....com>, Liam Girdwood <lrg@...com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] regulator: vexpress: Add missing n_voltages setting

Otherwise regulator_can_change_voltage() return 0 for this driver.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/regulator/vexpress.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/vexpress.c b/drivers/regulator/vexpress.c
index 4668c7f..9bb3aa0 100644
--- a/drivers/regulator/vexpress.c
+++ b/drivers/regulator/vexpress.c
@@ -86,10 +86,14 @@ static int vexpress_regulator_probe(struct platform_device *pdev)
 	}
 
 	init_data->constraints.apply_uV = 0;
-	if (init_data->constraints.min_uV && init_data->constraints.max_uV)
+	if (init_data->constraints.min_uV && init_data->constraints.max_uV) {
 		reg->desc.ops = &vexpress_regulator_ops;
-	else
+		reg->desc.n_voltages = init_data->constraints.max_uV -
+				       init_data->constraints.min_uV + 1;
+	} else {
 		reg->desc.ops = &vexpress_regulator_ops_ro;
+		reg->desc.n_voltages = 1;
+	}
 
 	config.dev = &pdev->dev;
 	config.init_data = init_data;
-- 
1.7.9.5



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