linux-kernel - [PATCH v5 06/13] mmc: sdhci-of-arasan: use sdhci_pltfm

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Message-ID: <1455628111-5583-7-git-send-email-jszhang@marvell.com>
Date:	Tue, 16 Feb 2016 21:08:24 +0800
From:	Jisheng Zhang <jszhang@...vell.com>
To:	<ulf.hansson@...aro.org>, <adrian.hunter@...el.com>,
	<arnd@...db.de>, <ludovic.desroches@...el.com>,
	<swarren@...dotorg.org>, <lee@...nel.org>, <eric@...olt.net>,
	<michal.simek@...inx.com>, <soren.brinkmann@...inx.com>,
	<srinivas.kandagatla@...il.com>, <maxime.coquelin@...com>,
	<patrice.chotard@...com>, <thierry.reding@...il.com>,
	<sebastian.hesselbarth@...il.com>, <kernel@...inux.com>
CC:	<linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-tegra@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-rpi-kernel@...ts.infradead.org>,
	Jisheng Zhang <jszhang@...vell.com>
Subject: [PATCH v5 06/13] mmc: sdhci-of-arasan: use sdhci_pltfm_init for private allocation

Commit 0e748234293f ("mmc: sdhci: Add size for caller in init+register")
allows users of sdhci_pltfm to allocate private space in calls to
sdhci_pltfm_init+sdhci_pltfm_register. This patch migrates the
sdhci-of-arasan driver to this allocation.

Signed-off-by: Jisheng Zhang <jszhang@...vell.com>
Acked-by: Arnd Bergmann <arnd@...db.de>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
---
 drivers/mmc/host/sdhci-of-arasan.c | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 8b4f8f7..1e4b5e0 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -81,7 +81,7 @@ static int sdhci_arasan_suspend(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_arasan_data *sdhci_arasan = pltfm_host->priv;
+	struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
 	ret = sdhci_suspend_host(host);
@@ -106,7 +106,7 @@ static int sdhci_arasan_resume(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_arasan_data *sdhci_arasan = pltfm_host->priv;
+	struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
 	int ret;
 
 	ret = clk_enable(sdhci_arasan->clk_ahb);
@@ -137,10 +137,13 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_arasan_data *sdhci_arasan;
 
-	sdhci_arasan = devm_kzalloc(&pdev->dev, sizeof(*sdhci_arasan),
-			GFP_KERNEL);
-	if (!sdhci_arasan)
-		return -ENOMEM;
+	host = sdhci_pltfm_init(pdev, &sdhci_arasan_pdata,
+				sizeof(*sdhci_arasan));
+	if (IS_ERR(host))
+		return PTR_ERR(host);
+
+	pltfm_host = sdhci_priv(host);
+	sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
 
 	sdhci_arasan->clk_ahb = devm_clk_get(&pdev->dev, "clk_ahb");
 	if (IS_ERR(sdhci_arasan->clk_ahb)) {
@@ -166,15 +169,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 		goto clk_dis_ahb;
 	}
 
-	host = sdhci_pltfm_init(pdev, &sdhci_arasan_pdata, 0);
-	if (IS_ERR(host)) {
-		ret = PTR_ERR(host);
-		goto clk_disable_all;
-	}
-
 	sdhci_get_of_property(pdev);
-	pltfm_host = sdhci_priv(host);
-	pltfm_host->priv = sdhci_arasan;
 	pltfm_host->clk = clk_xin;
 
 	ret = mmc_of_parse(host->mmc);
@@ -204,11 +199,12 @@ static int sdhci_arasan_remove(struct platform_device *pdev)
 	int ret;
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-	struct sdhci_arasan_data *sdhci_arasan = pltfm_host->priv;
+	struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
+	struct clk *clk_ahb = sdhci_arasan->clk_ahb;
 
 	ret = sdhci_pltfm_unregister(pdev);
 
-	clk_disable_unprepare(sdhci_arasan->clk_ahb);
+	clk_disable_unprepare(clk_ahb);
 
 	return ret;
 }
-- 
2.7.0