From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?UmljaGFyZCBSwprDtmpmb3Jz?= Subject: [PATCH] I2C: ocores can add I2C devices to the bus Date: Tue, 02 Jun 2009 19:52:40 +0200 Message-ID: <4A2566E8.7080404@mocean-labs.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: jacmet-OfajU3CKLf1/SzgSGea1oA@public.gmane.org, =?UTF-8?B?J1JpY2hhcmQgUsKaw7ZqZm9ycyc=?= List-Id: linux-i2c@vger.kernel.org There is sometimes a need for the ocores driver to add devices to the b= us when installed. i2c_register_board_info can not always be used, because the I2C devices= are not known at an early state, they could for instance be connected on a I2C bus on a PCI device which= has the Open Cores IP. i2c_new_device can not be used in all cases either since the resulting = bus nummer might be unknown. The solution is the pass a list of I2C devices in the platform data to = the Open Cores driver. Is useful for MFD drivers for instance. Signed-off-by: Richard R=C3=B6jfors --- Index: linux-2.6.30-rc7/drivers/i2c/busses/i2c-ocores.c =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- linux-2.6.30-rc7/drivers/i2c/busses/i2c-ocores.c (revision 861) +++ linux-2.6.30-rc7/drivers/i2c/busses/i2c-ocores.c (revision 862) @@ -216,6 +216,7 @@ struct ocores_i2c_platform_data *pdata; struct resource *res, *res2; int ret; + u8 i; res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) @@ -271,6 +272,10 @@ goto add_adapter_failed; } + /* add in known devices to the bus */ + for (i =3D 0; i < pdata->num_devices; i++) + i2c_new_device(&i2c->adap, pdata->devices + i); + return 0; add_adapter_failed: Index: linux-2.6.30-rc7/include/linux/i2c-ocores.h =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- linux-2.6.30-rc7/include/linux/i2c-ocores.h (revision 861) +++ linux-2.6.30-rc7/include/linux/i2c-ocores.h (revision 862) @@ -14,6 +14,8 @@ struct ocores_i2c_platform_data { u32 regstep; /* distance between registers */ u32 clock_khz; /* input clock in kHz */ + u8 num_devices; /* number of devices in the devices list */ + struct i2c_board_info const *devices; /* devices connected to the bus= */ }; #endif /* _LINUX_I2C_OCORES_H */