2016-04-21 12:02:37

by Richard Fitzgerald

[permalink] [raw]
Subject: [PATCH] regulator: arizona-ldo1: Mark as always-on if no LDOENA

If we don't have a GPIO for LDOENA it's impossible to turn
the LDO1 regulator off so mark it as always-on.

Signed-off-by: Richard Fitzgerald <[email protected]>
---
drivers/regulator/arizona-ldo1.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index f7c88ff..cc62ea2 100644
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -290,9 +290,9 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
config.ena_gpio = arizona->pdata.ldoena;

if (arizona->pdata.ldo1)
- config.init_data = arizona->pdata.ldo1;
- else
- config.init_data = &ldo1->init_data;
+ ldo1->init_data = *arizona->pdata.ldo1;
+
+ config.init_data = &ldo1->init_data;

/*
* LDO1 can only be used to supply DCVDD so if it has no
@@ -301,6 +301,13 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
if (config.init_data->num_consumer_supplies == 0)
arizona->external_dcvdd = true;

+ if (!arizona->external_dcvdd && (config.ena_gpio == 0) &&
+ !config.ena_gpio_initialized) {
+ dev_warn(arizona->dev,
+ "No LDOENA: regulator will be always-on\n");
+ ldo1->init_data.constraints.always_on = true;
+ }
+
ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);

of_node_put(config.of_node);
--
1.9.1


2016-04-21 15:27:01

by Mark Brown

[permalink] [raw]
Subject: Re: [PATCH] regulator: arizona-ldo1: Mark as always-on if no LDOENA

On Thu, Apr 21, 2016 at 01:02:02PM +0100, Richard Fitzgerald wrote:
> If we don't have a GPIO for LDOENA it's impossible to turn
> the LDO1 regulator off so mark it as always-on.

If there is no enable control method for the regulator this should be
redundant. If that's not the case you should fix that.


Attachments:
(No filename) (306.00 B)
signature.asc (473.00 B)
Download all attachments