From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leilk Liu Subject: [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl() Date: Fri, 20 Nov 2015 10:21:18 +0800 Message-ID: <1447986080-31410-3-git-send-email-leilk.liu@mediatek.com> References: <1447986080-31410-1-git-send-email-leilk.liu@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1447986080-31410-1-git-send-email-leilk.liu@mediatek.com> Sender: linux-kernel-owner@vger.kernel.org To: Mark Brown Cc: Mark Rutland , Matthias Brugger , Sascha Hauer , 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 List-Id: devicetree@vger.kernel.org It's not need to re-read and re-write SPI_CMD_REG, so remove it. Signed-off-by: Leilk Liu --- 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