From: <herman516@totalbb.net.tw>
To: linux-omap@vger.kernel.org
Subject: About 1-Wire driver of OMAP4
Date: Mon, 10 Dec 2012 09:54:40 +0800 [thread overview]
Message-ID: <04b23e3459eb3657ab313de044c95c22@127.0.0.1> (raw)
Hi,
I implemented gas gauge driver by 1-Wire interface in OMAP4 CPU, the
driver we used is a GPIO pin to simulate 1-Wire bus but it sometimes can't
work well of timing issue. So we want to use HDQ/1Wire controller in OMAP4,
does anyone have experience of OMAP4 1-Wire driver of using its controller?
Our gas gauge is DS2780 and we use "android-omap-3.0" kernel branch. I
tried to do below steps but it still can't work. Or do you have any
suggestion? Thanks.
1. Add hwmod of hdq1w in omap_hwmod_44xx_data.c file
2. Use omap_hdq.c file
3. Select "CONFIG_HDQ_MASTER_OMAP", "CONFIG_W1", "CONFIG_HDQ_MASTER_OMAP"
and "CONFIG_BATTERY_DS2780" in menuconfig.
Regards,
Herman
next reply other threads:[~2012-12-10 2:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-10 1:54 herman516 [this message]
2012-12-17 23:21 ` About 1-Wire driver of OMAP4 Paul Walmsley
2012-12-18 13:47 ` HermanMao(毛宏仁)
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