From 9ca37d78a35b590c8ecc93a1ecfca2411fde5fb7 Mon Sep 17 00:00:00 2001 From: Troy Kisky <troy.kisky@boundarydevices.com> Date: Tue, 24 Apr 2012 17:33:27 +0000 Subject: [PATCH] mxc_i2c: remove setting speed at each start Other then being very weird, this code was also wrong. For example, say I set speed to 100K. I'll read back the speed as 85937. But the speed is really 85937.5, so we I reset the speed to 85937, I'll get 73660.7. After a couple of transactions my speed is now exactly 68750 so it will remain there. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Stefano Babic <sbabic@denx.de> --- drivers/i2c/mxc_i2c.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 416ffeed00..fc68062b11 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -231,12 +231,6 @@ int i2c_imx_start(void) struct mxc_i2c_regs *i2c_regs = (struct mxc_i2c_regs *)I2C_BASE; unsigned int temp = 0; int result; - int speed = i2c_get_bus_speed(); - u8 clk_idx = i2c_imx_get_clk(speed); - u8 idx = i2c_clk_div[clk_idx][1]; - - /* Store divider value */ - writeb(idx, &i2c_regs->ifdr); /* Enable I2C controller */ writeb(0, &i2c_regs->i2sr); -- 2.39.5