linux-kernel - [PATCHv2 1/5] mmc: sdhci-bcm2835: group read and write functions to improve readability

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Message-ID: <1414651017-3545-2-git-send-email-sbranden@broadcom.com>
Date:	Wed, 29 Oct 2014 23:36:53 -0700
From:	Scott Branden <sbranden@...adcom.com>
To:	Ulf Hansson <ulf.hansson@...aro.org>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Peter Griffin <peter.griffin@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Chris Ball <chris@...ntf.net>,
	Piotr Krol <pietrushnic@...il.com>
CC:	<linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Joe Perches <joe@...ches.com>,
	<linux-rpi-kernel@...ts.infradead.org>,
	Ray Jui <rjui@...adcom.com>,
	<bcm-kernel-feedback-list@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>
Subject: [PATCHv2 1/5] mmc: sdhci-bcm2835: group read and write functions to improve readability

Group the read and write functions to improve readability.  Now all
similar functions are grouped together to evaluate behaviours.

Signed-off-by: Scott Branden <sbranden@...adcom.com>
---
 drivers/mmc/host/sdhci-bcm2835.c |   61 +++++++++++++++++++-------------------
 1 file changed, 31 insertions(+), 30 deletions(-)

diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index 439d259..c8ee02c 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -54,13 +54,6 @@ struct bcm2835_sdhci {
 	u32 shadow;
 };
 
-static void bcm2835_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
-{
-	writel(val, host->ioaddr + reg);
-
-	udelay(BCM2835_SDHCI_WRITE_DELAY);
-}
-
 static inline u32 bcm2835_sdhci_readl(struct sdhci_host *host, int reg)
 {
 	u32 val = readl(host->ioaddr + reg);
@@ -71,6 +64,34 @@ static inline u32 bcm2835_sdhci_readl(struct sdhci_host *host, int reg)
 	return val;
 }
 
+static u16 bcm2835_sdhci_readw(struct sdhci_host *host, int reg)
+{
+	u32 val = bcm2835_sdhci_readl(host, (reg & ~3));
+	u32 word_num = (reg >> 1) & 1;
+	u32 word_shift = word_num * 16;
+	u32 word = (val >> word_shift) & 0xffff;
+
+	return word;
+}
+
+static u8 bcm2835_sdhci_readb(struct sdhci_host *host, int reg)
+{
+	u32 val = bcm2835_sdhci_readl(host, (reg & ~3));
+	u32 byte_num = reg & 3;
+	u32 byte_shift = byte_num * 8;
+	u32 byte = (val >> byte_shift) & 0xff;
+
+	return byte;
+}
+
+static void bcm2835_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
+{
+	writel(val, host->ioaddr + reg);
+
+	udelay(BCM2835_SDHCI_WRITE_DELAY);
+}
+
+
 static void bcm2835_sdhci_writew(struct sdhci_host *host, u16 val, int reg)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -88,16 +109,6 @@ static void bcm2835_sdhci_writew(struct sdhci_host *host, u16 val, int reg)
 		bcm2835_sdhci_writel(host, newval, reg & ~3);
 }
 
-static u16 bcm2835_sdhci_readw(struct sdhci_host *host, int reg)
-{
-	u32 val = bcm2835_sdhci_readl(host, (reg & ~3));
-	u32 word_num = (reg >> 1) & 1;
-	u32 word_shift = word_num * 16;
-	u32 word = (val >> word_shift) & 0xffff;
-
-	return word;
-}
-
 static void bcm2835_sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
 {
 	u32 oldval = bcm2835_sdhci_readl(host, reg & ~3);
@@ -109,28 +120,18 @@ static void bcm2835_sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
 	bcm2835_sdhci_writel(host, newval, reg & ~3);
 }
 
-static u8 bcm2835_sdhci_readb(struct sdhci_host *host, int reg)
-{
-	u32 val = bcm2835_sdhci_readl(host, (reg & ~3));
-	u32 byte_num = reg & 3;
-	u32 byte_shift = byte_num * 8;
-	u32 byte = (val >> byte_shift) & 0xff;
-
-	return byte;
-}
-
 static unsigned int bcm2835_sdhci_get_min_clock(struct sdhci_host *host)
 {
 	return MIN_FREQ;
 }
 
 static const struct sdhci_ops bcm2835_sdhci_ops = {
-	.write_l = bcm2835_sdhci_writel,
-	.write_w = bcm2835_sdhci_writew,
-	.write_b = bcm2835_sdhci_writeb,
 	.read_l = bcm2835_sdhci_readl,
 	.read_w = bcm2835_sdhci_readw,
 	.read_b = bcm2835_sdhci_readb,
+	.write_l = bcm2835_sdhci_writel,
+	.write_w = bcm2835_sdhci_writew,
+	.write_b = bcm2835_sdhci_writeb,
 	.set_clock = sdhci_set_clock,
 	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
 	.get_min_clock = bcm2835_sdhci_get_min_clock,
-- 
1.7.9.5

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