From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH 1/2] macintosh: therm_windtunnel: drop using attach adapter Date: Thu, 16 Apr 2015 15:23:02 +0200 Message-ID: <1429190583-17517-2-git-send-email-wsa@the-dreams.de> References: <1429190583-17517-1-git-send-email-wsa@the-dreams.de> Return-path: In-Reply-To: <1429190583-17517-1-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org, Benjamin Herrenschmidt , Michael Ellerman , linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Wolfram Sang List-Id: linux-i2c@vger.kernel.org As we now have deferred probing, we can use a custom mechanism and finally get rid of the legacy interface from the i2c core. Signed-off-by: Wolfram Sang --- drivers/macintosh/therm_windtunnel.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index 835ca8be4c1632..57909a3ce67bf2 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -422,7 +422,6 @@ static struct i2c_driver g4fan_driver = { .driver = { .name = "therm_windtunnel", }, - .attach_adapter = do_attach, .probe = do_probe, .remove = do_remove, .id_table = therm_windtunnel_id, @@ -435,7 +434,29 @@ static struct i2c_driver g4fan_driver = { static int therm_of_probe(struct platform_device *dev) { - return i2c_add_driver( &g4fan_driver ); + struct i2c_adapter *adap; + int ret, i = 0; + + adap = i2c_get_adapter(0); + if (!adap) + return -EPROBE_DEFER; + + ret = i2c_add_driver(&g4fan_driver); + if (ret) { + i2c_put_adapter(adap); + return ret; + } + + /* We assume Macs have consecutive I2C bus numbers starting at 0 */ + while (adap) { + do_attach(adap); + if (x.running) + return 0; + i2c_put_adapter(adap); + adap = i2c_get_adapter(++i); + } + + return -ENODEV; } static int -- 2.1.4