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mfd: da9052: Fix broken regulator probe 

Fix broken probe of da9052 regulators, which since commit b3f6c73db7
("mfd: da9052-core: Fix platform-device id collision") use a
non-deterministic platform-device id to retrieve static regulator
information. Fortunately, adequate error handling was in place so probe
would simply fail with an error message.

Update the mfd-cell ids to be zero-based and use those to identify the
cells when probing the regulator devices.

Fixes: b3f6c73db7 ("mfd: da9052-core: Fix platform-device id collision")
Cc: stable <stable@vger.kernel.org>	# v3.19
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Johan Hovold 2015-05-15 16:27:40 +02:00 committed by Lee Jones
parent 5ebe6afaf0
commit e0c21530fa
2 changed files with 7 additions and 6 deletions
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8
drivers/mfd/da9052-core.c
View File

@ -431,6 +431,10 @@ int da9052_adc_read_temp(struct da9052 *da9052)
EXPORT_SYMBOL_GPL(da9052_adc_read_temp);
static const struct mfd_cell da9052_subdev_info[] = {
{
.name = "da9052-regulator",
.id = 0,
},
{
.name = "da9052-regulator",
.id = 1,
@ -483,10 +487,6 @@ static const struct mfd_cell da9052_subdev_info[] = {
.name = "da9052-regulator",
.id = 13,
},
{
.name = "da9052-regulator",
.id = 14,
},
{
.name = "da9052-onkey",
},

5
drivers/regulator/da9052-regulator.c
View File

@ -394,6 +394,7 @@ static inline struct da9052_regulator_info *find_regulator_info(u8 chip_id,
static int da9052_regulator_probe(struct platform_device *pdev)
{
const struct mfd_cell *cell = mfd_get_cell(pdev);
struct regulator_config config = { };
struct da9052_regulator *regulator;
struct da9052 *da9052;
@ -409,7 +410,7 @@ static int da9052_regulator_probe(struct platform_device *pdev)
regulator->da9052 = da9052;
regulator->info = find_regulator_info(regulator->da9052->chip_id,
pdev->id);
cell->id);
if (regulator->info == NULL) {
dev_err(&pdev->dev, "invalid regulator ID specified\n");
return -EINVAL;
@ -419,7 +420,7 @@ static int da9052_regulator_probe(struct platform_device *pdev)
config.driver_data = regulator;
config.regmap = da9052->regmap;
if (pdata && pdata->regulators) {
config.init_data = pdata->regulators[pdev->id];
config.init_data = pdata->regulators[cell->id];
} else {
#ifdef CONFIG_OF
struct device_node *nproot = da9052->dev->of_node;