From: Matthias Schwarzott Date: Thu, 2 Oct 2014 05:21:05 +0000 (-0300) Subject: [media] cx231xx: scan all four existing i2c busses instead of the 3 masters X-Git-Tag: firefly_0821_release~176^2~2474^2~314 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e4de03f26384452c47fe8b97838aeba3bec4122f;p=firefly-linux-kernel-4.4.55.git [media] cx231xx: scan all four existing i2c busses instead of the 3 masters The scanning itself just fails (as before this series) but now the correct busses are scanned. Signed-off-by: Matthias Schwarzott Reviewed-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c index c49022f4525a..9b5cd9e9b169 100644 --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -1303,6 +1303,12 @@ int cx231xx_dev_init(struct cx231xx *dev) cx231xx_i2c_mux_register(dev, 0); cx231xx_i2c_mux_register(dev, 1); + /* scan the real bus segments in the order of physical port numbers */ + cx231xx_do_i2c_scan(dev, I2C_0); + cx231xx_do_i2c_scan(dev, I2C_1_MUX_1); + cx231xx_do_i2c_scan(dev, I2C_2); + cx231xx_do_i2c_scan(dev, I2C_1_MUX_3); + /* init hardware */ /* Note : with out calling set power mode function, afe can not be set up correctly */ diff --git a/drivers/media/usb/cx231xx/cx231xx-i2c.c b/drivers/media/usb/cx231xx/cx231xx-i2c.c index 3e9dfd808518..d1003c703fb5 100644 --- a/drivers/media/usb/cx231xx/cx231xx-i2c.c +++ b/drivers/media/usb/cx231xx/cx231xx-i2c.c @@ -492,6 +492,9 @@ void cx231xx_do_i2c_scan(struct cx231xx *dev, int i2c_port) int i, rc; struct i2c_client client; + if (!i2c_scan) + return; + memset(&client, 0, sizeof(client)); client.adapter = cx231xx_get_i2c_adap(dev, i2c_port); @@ -528,10 +531,7 @@ int cx231xx_i2c_register(struct cx231xx_i2c *bus) i2c_set_adapdata(&bus->i2c_adap, &dev->v4l2_dev); i2c_add_adapter(&bus->i2c_adap); - if (0 == bus->i2c_rc) { - if (i2c_scan) - cx231xx_do_i2c_scan(dev, bus->nr); - } else + if (0 != bus->i2c_rc) cx231xx_warn("%s: i2c bus %d register FAILED\n", dev->name, bus->nr);