From mboxrd@z Thu Jan 1 00:00:00 1970 From: t-kristo@ti.com (Tero Kristo) Date: Fri, 4 May 2012 16:57:20 +0300 Subject: [PATCH 1/3] ARM: OMAP4: VC: fix I2C timing In-Reply-To: <1336139842-845-1-git-send-email-t-kristo@ti.com> References: <1336139842-845-1-git-send-email-t-kristo@ti.com> Message-ID: <1336139842-845-2-git-send-email-t-kristo@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Current I2C timing parameters do not work with Panda board at least. Parameters updated based on TI recommendation. Signed-off-by: Tero Kristo --- arch/arm/mach-omap2/vc.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index 1fd976e..a731400 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -585,7 +585,9 @@ static void __init omap4_vc_init_channel(struct voltagedomain *voltdm) omap4_set_timings(voltdm, true); /* XXX These are magic numbers and do not belong! */ - vc_val = (0x60 << OMAP4430_SCLL_SHIFT | 0x26 << OMAP4430_SCLH_SHIFT); + vc_val = (0x28 << OMAP4430_SCLL_SHIFT | 0x2c << OMAP4430_SCLH_SHIFT); + vc_val |= (0x0b << OMAP4430_HSSCLL_SHIFT); + vc_val |= (0x0 << OMAP4430_HSSCLH_SHIFT); voltdm->write(vc_val, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET); } -- 1.7.4.1