linux-kernel - [PATCH v4 10/10] mfd: mfd-core: Move pdev->mfd_cell creation back into mfd_add

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Date:   Fri,  1 Nov 2019 07:45:18 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     daniel.thompson@...aro.org, broonie@...nel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, linus.walleij@...aro.org, baohua@...nel.org,
        stephan@...hold.net, Lee Jones <lee.jones@...aro.org>
Subject: [PATCH v4 10/10] mfd: mfd-core: Move pdev->mfd_cell creation back into mfd_add_device()

Most of the complexity of mfd_platform_add_cell() has been removed. The
only functionality left duplicates cell memory into the child's platform
device. Since it's only a few lines, moving it to the main thread and
removing the superfluous function makes sense.

Signed-off-by: Lee Jones <lee.jones@...aro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
Reviewed-by: Mark Brown <broonie@...nel.org>
---
 drivers/mfd/mfd-core.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 2535dd3605c0..cb3e0a14bbdd 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -49,19 +49,6 @@ int mfd_cell_disable(struct platform_device *pdev)
 }
 EXPORT_SYMBOL(mfd_cell_disable);
 
-static int mfd_platform_add_cell(struct platform_device *pdev,
-				 const struct mfd_cell *cell)
-{
-	if (!cell)
-		return 0;
-
-	pdev->mfd_cell = kmemdup(cell, sizeof(*cell), GFP_KERNEL);
-	if (!pdev->mfd_cell)
-		return -ENOMEM;
-
-	return 0;
-}
-
 #if IS_ENABLED(CONFIG_ACPI)
 static void mfd_acpi_add_device(const struct mfd_cell *cell,
 				struct platform_device *pdev)
@@ -141,6 +128,10 @@ static int mfd_add_device(struct device *parent, int id,
 	if (!pdev)
 		goto fail_alloc;
 
+	pdev->mfd_cell = kmemdup(cell, sizeof(*cell), GFP_KERNEL);
+	if (!pdev->mfd_cell)
+		goto fail_device;
+
 	res = kcalloc(cell->num_resources, sizeof(*res), GFP_KERNEL);
 	if (!res)
 		goto fail_device;
@@ -183,10 +174,6 @@ static int mfd_add_device(struct device *parent, int id,
 			goto fail_alias;
 	}
 
-	ret = mfd_platform_add_cell(pdev, cell);
-	if (ret)
-		goto fail_alias;
-
 	for (r = 0; r < cell->num_resources; r++) {
 		res[r].name = cell->resources[r].name;
 		res[r].flags = cell->resources[r].flags;
-- 
2.17.1