On 2/24/20 1:06 AM, Maxime Ripard wrote:
The HDMI blocks in the BCM2771 have an i2c controller to retrieve the EDID. This block is split into two parts, the BSC and the AUTO_I2C, lying in two separate register areas.
The AUTO_I2C block has a mailbox-like interface and will take away the BSC control from the CPU if enabled. However, the BSC is the actually the same controller than the one supported by the brcmstb driver, and the AUTO_I2C doesn't really bring any immediate benefit.
We can model it in the DT as a single device with two register range, which will allow us to use or or the other in the driver without changing anything in the DT.
Cc: Kamal Dasu kdasu.kdev@gmail.com Cc: Florian Fainelli f.fainelli@gmail.com Cc: Rob Herring robh+dt@kernel.org Cc: Wolfram Sang wsa@the-dreams.de Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-i2c@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech
Acked-by: Florian Fainelli f.fainelli@gmail.com