linux-kernel - [PATCH v5 07/21] nvmem: snvs_lgpr: Convert to use devm_nvmem

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Date:   Thu,  8 Mar 2018 11:11:51 -0800
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Matthias Brugger <matthias.bgg@...il.com>, cphealy@...il.com,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v5 07/21] nvmem: snvs_lgpr: Convert to use devm_nvmem_register()

Drop all of the code related to .remove hook and make use of
devm_nvmem_register() instead.

Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: Heiko Stuebner <heiko@...ech.de>
Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: Carlo Caione <carlo@...one.org>
Cc: Kevin Hilman <khilman@...libre.com>
Cc: Matthias Brugger <matthias.bgg@...il.com>
Cc: cphealy@...il.com
Cc: linux-kernel@...r.kernel.org
Cc: linux-mediatek@...ts.infradead.org
Cc: linux-rockchip@...ts.infradead.org
Cc: linux-amlogic@...ts.infradead.org
Cc: linux-arm-kernel@...ts.infradead.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
---
 drivers/nvmem/snvs_lpgpr.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/nvmem/snvs_lpgpr.c b/drivers/nvmem/snvs_lpgpr.c
index e5c2a4a17f03..cb471d5e8e86 100644
--- a/drivers/nvmem/snvs_lpgpr.c
+++ b/drivers/nvmem/snvs_lpgpr.c
@@ -117,20 +117,9 @@ static int snvs_lpgpr_probe(struct platform_device *pdev)
 	cfg->reg_read  = snvs_lpgpr_read,
 	cfg->reg_write = snvs_lpgpr_write,
 
-	nvmem = nvmem_register(cfg);
-	if (IS_ERR(nvmem))
-		return PTR_ERR(nvmem);
+	nvmem = devm_nvmem_register(dev, cfg);
 
-	platform_set_drvdata(pdev, nvmem);
-
-	return 0;
-}
-
-static int snvs_lpgpr_remove(struct platform_device *pdev)
-{
-	struct nvmem_device *nvmem = platform_get_drvdata(pdev);
-
-	return nvmem_unregister(nvmem);
+	return PTR_ERR_OR_ZERO(nvmem);
 }
 
 static const struct of_device_id snvs_lpgpr_dt_ids[] = {
@@ -143,7 +132,6 @@ MODULE_DEVICE_TABLE(of, snvs_lpgpr_dt_ids);
 
 static struct platform_driver snvs_lpgpr_driver = {
 	.probe	= snvs_lpgpr_probe,
-	.remove	= snvs_lpgpr_remove,
 	.driver = {
 		.name	= "snvs_lpgpr",
 		.of_match_table = snvs_lpgpr_dt_ids,
-- 
2.14.3