]> git.karo-electronics.de Git - linux-beck.git/commitdiff
mach-mx5: fix the I2C clock parents
authorLothar Waßmann <LW@KARO-electronics.de>
Mon, 4 Jul 2011 13:52:17 +0000 (15:52 +0200)
committerSascha Hauer <s.hauer@pengutronix.de>
Thu, 7 Jul 2011 07:07:46 +0000 (09:07 +0200)
The clock from which the I2C timing is derived is the ipg_perclk not ipg_clk.

I2C bus frequency was lower by a factor of ~8 due to the clock divider
calculation being based on 66.5MHz IPG clock while the bus actually
uses 8MHz ipg_perclk.

Kernel version: 3.0.0-rc2 branch 'imx-for-next' of git://git.pengutronix.de/git/imx/linux-2.6

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
arch/arm/mach-mx5/clock-mx51-mx53.c

index 6b89c1bf4eb2f7a774b18c7b68871b173b5f4da1..cea2bba06d0b795ebd16f0e83314a6aaf6b3db16 100644 (file)
@@ -1274,9 +1274,9 @@ DEFINE_CLOCK(pwm2_clk, 0, MXC_CCM_CCGR2, MXC_CCM_CCGRx_CG8_OFFSET,
 
 /* I2C */
 DEFINE_CLOCK(i2c1_clk, 0, MXC_CCM_CCGR1, MXC_CCM_CCGRx_CG9_OFFSET,
-       NULL, NULL, &ipg_clk, NULL);
+       NULL, NULL, &ipg_perclk, NULL);
 DEFINE_CLOCK(i2c2_clk, 1, MXC_CCM_CCGR1, MXC_CCM_CCGRx_CG10_OFFSET,
-       NULL, NULL, &ipg_clk, NULL);
+       NULL, NULL, &ipg_perclk, NULL);
 DEFINE_CLOCK(hsi2c_clk, 0, MXC_CCM_CCGR1, MXC_CCM_CCGRx_CG11_OFFSET,
        NULL, NULL, &ipg_clk, NULL);