mfd: da9052: Fix broken regulator probe
authorJohan Hovold <johan@kernel.org>
Fri, 15 May 2015 14:27:40 +0000 (16:27 +0200)
committerLee Jones <lee.jones@linaro.org>
Wed, 27 May 2015 12:34:15 +0000 (13:34 +0100)
Fix broken probe of da9052 regulators, which since commit b3f6c73db732
("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: b3f6c73db732 ("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>
drivers/mfd/da9052-core.c
drivers/regulator/da9052-regulator.c

index ae498b53ee4042ef3e39e6f77a7272cffe4abe74..46e3840c7a37392402deb53a7a9eb2cb7b8b27b6 100644 (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",
        },
index 8a4df7a1f2eecc879a679711d13d64885397af39..e628d4c2f2ae43de1955aac857f745ec2d3d0357 100644 (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;