From: Hyunki Koo <hyunki00.koo@samsung.com>
Date: Tue, 22 Jul 2014 13:37:21 +0000 (+0900)
Subject: i2c: s3c2410: set 24Mhz to NCLK for fimc_is_i2c
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0fb8c196c5c915c2f77ca4a63232c96f069aa9c1;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

i2c: s3c2410: set 24Mhz to NCLK for fimc_is_i2c

Change-Id: I18b8cbcec5a6c8ac8a37235805323755210db6e2
Signed-off-by: Hyunki Koo <hyunki00.koo@samsung.com>
---

diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 4e2821e1b429..e3bfbea0e97f 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -934,12 +934,17 @@ static int s3c24xx_i2c_calcdivisor(struct s3c24xx_i2c *i2c,
 static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got)
 {
 	struct s3c2410_platform_i2c *pdata = i2c->pdata;
-	unsigned long clkin = clk_get_rate(i2c->rate_clk);
+	unsigned long clkin;
 	unsigned int divs, div1;
 	unsigned long target_frequency;
 	u32 iiccon;
 	int freq;
 
+	if (i2c->quirks & QUIRK_FIMC_I2C)
+		clkin = 24000000;/* NCLK is fixed 24Mhz */
+	else
+		clkin = clk_get_rate(i2c->rate_clk);
+
 	i2c->clkrate = clkin;
 	clkin /= 1000;		/* clkin now in KHz */