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From: Scott Branden <sbranden@broadcom.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Russell King <rmk+kernel@arm.linux.org.uk>,
	Peter Griffin <peter.griffin@linaro.org>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Chris Ball <chris@printf.net>, Piotr Krol <pietrushnic@gmail.com>
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Joe Perches <joe@perches.com>,
	linux-rpi-kernel@lists.infradead.org, Ray Jui <rjui@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com,
	Scott Branden <sbranden@broadcom.com>
Subject: [PATCHv2 1/5] mmc: sdhci-bcm2835: group read and write functions to improve readability
Date: Wed, 29 Oct 2014 23:36:53 -0700	[thread overview]
Message-ID: <1414651017-3545-2-git-send-email-sbranden@broadcom.com> (raw)
In-Reply-To: <1414651017-3545-1-git-send-email-sbranden@broadcom.com>

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@broadcom.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


  reply	other threads:[~2014-10-30  6:37 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Scott Branden <sbranden@broadcom.com>
2014-10-15  2:01 ` [PATCH 0/1] sdhci-bcm2835: added quirk and removed udelay in write ops Scott Branden
2014-10-15  2:01   ` [PATCH 1/1] mmc: " Scott Branden
2014-10-17  2:50     ` Stephen Warren
2014-10-15 16:43 ` Scott Branden
2014-10-18  2:37   ` Stephen Warren
2014-10-18  6:40     ` Scott Branden
2014-10-30  6:36 ` [PATCHv2 0/5] " Scott Branden
2014-10-30  6:36   ` Scott Branden [this message]
2014-10-30  6:36   ` [PATCHv2 2/5] mmc: sdhci-bcm2835: make shift calculations consistent Scott Branden
2014-11-05  4:48     ` Stephen Warren
2014-11-05  5:19       ` Scott Branden
2014-10-30  6:36   ` [PATCHv2 3/5] mmc: shdci-bcm2835: add efficient back-to-back write workaround Scott Branden
2014-11-05  4:57     ` Stephen Warren
2014-11-05  6:55       ` Scott Branden
2014-11-06  4:48         ` Stephen Warren
2014-11-07 18:29           ` Scott Branden
2014-10-30  6:36   ` [PATCHv2 4/5] mmc: shdci-bcm2835: add verify for 32-bit back-to-back workaround Scott Branden
2014-11-05  4:44     ` Stephen Warren
2014-11-05  5:26       ` Scott Branden
2014-11-05  4:59     ` Stephen Warren
2014-11-05  7:00       ` Scott Branden
2014-11-06  5:01         ` Stephen Warren
2014-11-07 18:31           ` Scott Branden
2015-12-22 15:55             ` Stefan Wahren
2015-12-22 19:23               ` Scott Branden
2015-12-22 20:13                 ` Stefan Wahren
2014-10-30  6:36   ` [PATCHv2 5/5] mmc: sdhci-bcm2835: add sdhci quirk SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 Scott Branden
2014-11-05  5:00     ` Stephen Warren
2014-11-05  7:02       ` Scott Branden
2014-11-06  4:50         ` Stephen Warren
2014-11-07 18:30           ` Scott Branden
2014-12-05  0:11 ` [PATCH] mmc: sdhci: add quirk for ACMD23 broken Scott Branden
2014-12-05  0:16 ` [PATCH v2] " Scott Branden
2014-12-17 18:36   ` Scott Branden
2014-12-17 19:48   ` Chris Ball
2014-12-17 20:42     ` Scott Branden
2015-02-10  0:06 ` [PATCH 0/4] Add support for IPROC SDHCI controller Scott Branden
2015-02-10  0:06   ` [PATCH 1/4] mmc: sdhci: add quirk for ACMD23 broken Scott Branden
2015-02-10  0:06   ` [PATCH 2/4] mmc: sdhci: do not set AUTO_CMD12 for multi-block CMD53 Scott Branden
2015-02-10  0:06   ` [PATCH 3/4] mmc: sdhci-iproc: add IPROC SDHCI driver Scott Branden
2015-02-10  0:06   ` [PATCH 4/4] mmc: sdhci-iproc: add device tree bindings Scott Branden
2015-03-02 23:50     ` Florian Fainelli
2015-03-04 23:14       ` Scott Branden
     [not found]   ` <1423526791-29453-1-git-send-email-sbranden-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2015-02-26 17:28     ` [PATCH 0/4] Add support for IPROC SDHCI controller Scott Branden
2015-03-05 15:59 ` [PATCH RESEND " Scott Branden
2015-03-05 15:59   ` [PATCH 1/4] mmc: sdhci: add quirk for ACMD23 broken Scott Branden
2015-03-05 15:59   ` [PATCH 2/4] mmc: sdhci: do not set AUTO_CMD12 for multi-block CMD53 Scott Branden
2015-03-05 15:59   ` [PATCH 3/4] mmc: sdhci-iproc: add IPROC SDHCI driver Scott Branden
2015-03-05 15:59   ` [PATCH 4/4] mmc: sdhci-iproc: add device tree bindings Scott Branden
2015-03-05 16:16   ` [PATCH RESEND 0/4] Add support for IPROC SDHCI controller Ulf Hansson
2015-03-05 19:57     ` Florian Fainelli
2015-03-10 18:35 ` [PATCH] mmc: sdhci: fix card presence logic in sdhci_request function Scott Branden
2015-03-13 10:14   ` Ulf Hansson

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