From: Leilk Liu <leilk.liu@mediatek.com>
To: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-spi@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
Leilk Liu <leilk.liu@mediatek.com>
Subject: [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl()
Date: Fri, 20 Nov 2015 10:21:18 +0800 [thread overview]
Message-ID: <1447986080-31410-3-git-send-email-leilk.liu@mediatek.com> (raw)
In-Reply-To: <1447986080-31410-1-git-send-email-leilk.liu@mediatek.com>
It's not need to re-read and re-write SPI_CMD_REG, so remove it.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
---
drivers/spi/spi-mt65xx.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 7840067..6c1a96e 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -154,9 +154,6 @@ static int mtk_spi_prepare_message(struct spi_master *master,
reg_val |= SPI_CMD_CPOL;
else
reg_val &= ~SPI_CMD_CPOL;
- writel(reg_val, mdata->base + SPI_CMD_REG);
-
- reg_val = readl(mdata->base + SPI_CMD_REG);
/* set the mlsbx and mlsbtx */
if (chip_config->tx_mlsb)
--
1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: Leilk Liu <leilk.liu@mediatek.com>
To: Mark Brown <broonie@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org,
linux-mediatek@lists.infradead.org,
Leilk Liu <leilk.liu@mediatek.com>
Subject: [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl()
Date: Fri, 20 Nov 2015 10:21:18 +0800 [thread overview]
Message-ID: <1447986080-31410-3-git-send-email-leilk.liu@mediatek.com> (raw)
In-Reply-To: <1447986080-31410-1-git-send-email-leilk.liu@mediatek.com>
It's not need to re-read and re-write SPI_CMD_REG, so remove it.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
---
drivers/spi/spi-mt65xx.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 7840067..6c1a96e 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -154,9 +154,6 @@ static int mtk_spi_prepare_message(struct spi_master *master,
reg_val |= SPI_CMD_CPOL;
else
reg_val &= ~SPI_CMD_CPOL;
- writel(reg_val, mdata->base + SPI_CMD_REG);
-
- reg_val = readl(mdata->base + SPI_CMD_REG);
/* set the mlsbx and mlsbtx */
if (chip_config->tx_mlsb)
--
1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: leilk.liu@mediatek.com (Leilk Liu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl()
Date: Fri, 20 Nov 2015 10:21:18 +0800 [thread overview]
Message-ID: <1447986080-31410-3-git-send-email-leilk.liu@mediatek.com> (raw)
In-Reply-To: <1447986080-31410-1-git-send-email-leilk.liu@mediatek.com>
It's not need to re-read and re-write SPI_CMD_REG, so remove it.
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
---
drivers/spi/spi-mt65xx.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 7840067..6c1a96e 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -154,9 +154,6 @@ static int mtk_spi_prepare_message(struct spi_master *master,
reg_val |= SPI_CMD_CPOL;
else
reg_val &= ~SPI_CMD_CPOL;
- writel(reg_val, mdata->base + SPI_CMD_REG);
-
- reg_val = readl(mdata->base + SPI_CMD_REG);
/* set the mlsbx and mlsbtx */
if (chip_config->tx_mlsb)
--
1.7.9.5
next prev parent reply other threads:[~2015-11-20 2:22 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-20 2:21 [PATCH 1/4] spi: mediatek: update document devicetree bindings to fix syntax error Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` [PATCH 2/4] spi: mediatek: remove unrequired description Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 14:20 ` Rob Herring
2015-11-20 14:20 ` Rob Herring
2015-11-20 14:20 ` Rob Herring
[not found] ` <1447986080-31410-2-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-11-21 14:03 ` Applied "spi: mediatek: remove unrequired description" to the spi tree Mark Brown
2015-11-20 2:21 ` Leilk Liu [this message]
2015-11-20 2:21 ` [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl() Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 16:56 ` Matthias Brugger
2015-11-20 16:56 ` Matthias Brugger
[not found] ` <1447986080-31410-3-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-11-21 14:03 ` Applied "spi: mediatek: remove needless pair of writel()/readl()" to the spi tree Mark Brown
2015-11-20 2:21 ` [PATCH 4/4] spi: mediatek: revise mtk_spi_probe() failure flow Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-20 2:21 ` Leilk Liu
2015-11-21 13:39 ` Mark Brown
2015-11-21 13:39 ` Mark Brown
2015-11-21 13:39 ` Mark Brown
2015-11-24 2:33 ` lei liu
2015-11-24 2:33 ` lei liu
2015-11-24 2:33 ` lei liu
2015-11-24 2:33 ` lei liu
2015-11-24 13:04 ` Mark Brown
2015-11-24 13:04 ` Mark Brown
2015-11-24 13:04 ` Mark Brown
2015-11-25 9:17 ` lei liu
2015-11-25 9:17 ` lei liu
2015-11-25 9:17 ` lei liu
2015-11-25 9:17 ` lei liu
[not found] ` <1447986080-31410-4-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-11-25 12:11 ` Applied "spi: mediatek: revise mtk_spi_probe() failure flow" to the spi tree Mark Brown
2015-11-20 14:17 ` [PATCH 1/4] spi: mediatek: update document devicetree bindings to fix syntax error Rob Herring
2015-11-20 14:17 ` Rob Herring
2015-11-20 14:17 ` Rob Herring
[not found] ` <1447986080-31410-1-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-11-21 14:03 ` Applied "spi: mediatek: update document devicetree bindings to fix syntax error" to the spi tree Mark Brown
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