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SubjectRe: [PATCH v10 3/4] [media] platform: Add Synopsys DesignWare HDMI RX PHY e405 Driver
On Mon, Dec 11, 2017 at 6:41 PM, Jose Abreu <> wrote:
> This adds support for the Synopsys DesignWare HDMI RX PHY e405. This
> phy receives and decodes HDMI video that is delivered to a controller.
> Main features included in this driver are:
> - Equalizer algorithm that chooses the phy best settings
> according to the detected HDMI cable characteristics.
> - Support for scrambling
> - Support for HDMI 2.0 modes up to 6G (HDMI 4k@60Hz).
> The driver was implemented as a standalone V4L2 subdevice and the
> phy interface with the controller was implemented using V4L2 ioctls. I
> do not know if this is the best option but it is not possible to use the
> existing API functions directly as we need specific functions that will
> be called by the controller at specific configuration stages.
> There is also a bidirectional communication between controller and phy:
> The phy must provide functions that the controller will call (i.e.
> configuration functions) and the controller must provide read/write
> callbacks, as well as other specific functions.
> Signed-off-by: Jose Abreu <>
> Cc: Joao Pinto <>
> Cc: Mauro Carvalho Chehab <>
> Cc: Hans Verkuil <>
> Cc: Sylwester Nawrocki <>
> Cc: Philippe Ombredanne <>
> ---
> Changes from v9:
> - Use SPDX License ID (Philippe)

Acked-by: Philippe Ombredanne <>

Philippe Ombredanne

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