Hi!

> > > Every single sound driver gets this right, none of them assume the name
> > > is global.  What makes you say that they assume names are global?
> 
> > Ok, so you are saying that if I fix mfd initialization, sound will
> > automagically switch from global regulators to device-specific
> > regulators and things will start working?
> 
> Yes.

Ok, so something like this should be applied?

(I'm not sure how to test it, as audio works before and after the
patch.)

Thanks,
                                                                Pavel

Signed-off-by: Pavel Machek <pa...@denx.de>

commit d6005263acb94343645e719ee90b8940cb2545df
Author: Pavel <pa...@ucw.cz>
Date:   Mon Nov 16 13:19:21 2015 +0100

    regulator_bulk_register() needs device to be already
    registered. Reorganize the code to make it so.

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 14fd5cb..e891f10 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -147,12 +147,6 @@ static int mfd_add_device(struct device *parent, int id,
        pdev->dev.dma_parms = parent->dma_parms;
        pdev->dev.coherent_dma_mask = parent->coherent_dma_mask;
 
-       ret = regulator_bulk_register_supply_alias(
-                       &pdev->dev, cell->parent_supplies,
-                       parent, cell->parent_supplies,
-                       cell->num_parent_supplies);
-       if (ret < 0)
-               goto fail_res;
 
        if (parent->of_node && cell->of_compatible) {
                for_each_child_of_node(parent->of_node, np) {
@@ -169,12 +176,12 @@ static int mfd_add_device(struct device *parent, int id,
                ret = platform_device_add_data(pdev,
                                        cell->platform_data, cell->pdata_size);
                if (ret)
-                       goto fail_alias;
+                       goto fail_res;
        }
 
        ret = mfd_platform_add_cell(pdev, cell, usage_count);
        if (ret)
-               goto fail_alias;
+               goto fail_res;
 
        for (r = 0; r < cell->num_resources; r++) {
                res[r].name = cell->resources[r].name;
@@ -210,22 +217,29 @@ static int mfd_add_device(struct device *parent, int id,
                        if (has_acpi_companion(&pdev->dev)) {
                                ret = acpi_check_resource_conflict(&res[r]);
                                if (ret)
-                                       goto fail_alias;
+                                       goto fail_res;
                        }
                }
        }
 
        ret = platform_device_add_resources(pdev, res, cell->num_resources);
        if (ret)
-               goto fail_alias;
+               goto fail_res;
 
        ret = platform_device_add(pdev);
        if (ret)
-               goto fail_alias;
+               goto fail_res;
 
        if (cell->pm_runtime_no_callbacks)
                pm_runtime_no_callbacks(&pdev->dev);
 
+       ret = regulator_bulk_register_supply_alias(
+                       &pdev->dev, cell->parent_supplies,
+                       parent, cell->parent_supplies,
+                       cell->num_parent_supplies);
+       if (ret < 0)
+               goto fail_alias;
+
        kfree(res);
 
        return 0;


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) 
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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