On 17.05.2015 21:03, Vladimir Zapolskiy wrote:
The change adds support of internal HDMI I2C master controller, this subdevice is used by default, if "ddc-i2c-bus" DT property is omitted.
The main purpose of this functionality is to support reading EDID from an HDMI monitor on boards, which don't have an I2C bus connected to DDC pins.
Signed-off-by: Vladimir Zapolskiy vladimir_zapolskiy@mentor.com
drivers/gpu/drm/bridge/dw_hdmi.c | 332 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 326 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index 49cafb6..2a52449 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c
[snip]
- ret = i2c_add_adapter(adap);
- if (ret) {
dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name);devm_kfree(hdmi->i2c);
Immediately found a compilation problem in last minute update, I'll resend the change, sorry.
hdmi->i2c = NULL;return ERR_PTR(ret);- }
-- With best wishes, Vladimir