From mboxrd@z Thu Jan 1 00:00:00 1970 From: ch.naveen@samsung.com (Naveen Krishna Chatradhi) Date: Thu, 26 Jun 2014 10:44:57 +0530 Subject: [PATCH 1/2 v2] i2c: exynos5: remove an unnecessary read of FIFO_STATUS register Message-ID: <1403759698-15624-1-git-send-email-ch.naveen@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This patch removes an extra read of FIFO_STATUS register in the interrrupt service routine. Which is read again before the actual use. Signed-off-by: Naveen Krishna Chatradhi --- Changes since v1: None drivers/i2c/busses/i2c-exynos5.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c index 63d2292..0d1a7bc 100644 --- a/drivers/i2c/busses/i2c-exynos5.c +++ b/drivers/i2c/busses/i2c-exynos5.c @@ -405,7 +405,6 @@ static irqreturn_t exynos5_i2c_irq(int irqno, void *dev_id) int_status = readl(i2c->regs + HSI2C_INT_STATUS); writel(int_status, i2c->regs + HSI2C_INT_STATUS); - fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS); /* handle interrupt related to the transfer status */ if (int_status & HSI2C_INT_I2C) { -- 1.7.9.5