linux-kernel - [alsa-devel] [PATCH] mfd: wm8994: use PLATFORM_DEVID_AUTO for regulator devs creation to avoid conflicts

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Message-id: <1419918320-12693-1-git-send-email-ideal.song@samsung.com>
Date:	Tue, 30 Dec 2014 14:45:20 +0900
From:	Inha Song <ideal.song@...sung.com>
To:	broonie@...nel.org, lgirdwood@...il.com, lee.jones@...aro.org
Cc:	sameo@...ux.intel.com, patches@...nsource.wolfsonmicro.com,
	linux-kernel@...r.kernel.org, ckeepax@...nsource.wolfsonmicro.com,
	alsa-devel@...a-project.org, Inha Song <ideal.song@...sung.com>
Subject: [alsa-devel] [PATCH] mfd: wm8994: use PLATFORM_DEVID_AUTO for
 regulator devs creation to avoid conflicts

After commit: 6e3f62f0793e ("mfd: core: Fix platform-device id generation")
We must set the id base when register a duplicate name of mfd_cell.
but, if we use PLATFORM_DEVID_AUTO flag, cell ids are automatically
allocated and managed without cell id setting.

Signed-off-by: Inha Song <ideal.song@...sung.com>
---
 drivers/mfd/wm8994-core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index e6fab94..0505e45 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -36,12 +36,10 @@
 static const struct mfd_cell wm8994_regulator_devs[] = {
 	{
 		.name = "wm8994-ldo",
-		.id = 1,
 		.pm_runtime_no_callbacks = true,
 	},
 	{
 		.name = "wm8994-ldo",
-		.id = 2,
 		.pm_runtime_no_callbacks = true,
 	},
 };
@@ -344,7 +342,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
 	dev_set_drvdata(wm8994->dev, wm8994);
 
 	/* Add the on-chip regulators first for bootstrapping */
-	ret = mfd_add_devices(wm8994->dev, -1,
+	ret = mfd_add_devices(wm8994->dev, PLATFORM_DEVID_AUTO,
 			      wm8994_regulator_devs,
 			      ARRAY_SIZE(wm8994_regulator_devs),
 			      NULL, 0, NULL);
-- 
2.0.0.390.gcb682f8

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