Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1347731

[PATCH 0/2] phy: rcar-gen2, rcar-gen3-usb2: add fallback binding

Show all headers | View raw

Add fallback compatibility strings for rcar phy drivers.

In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that its not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.

Based on v4.5-rc1

Simon Horman (2):
  phy: rcar-gen2: add fallback binding
  phy: rcar-gen3-usb2: add fallback binding

 Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt      |  8 +++++++-
 Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 10 ++++++++--
 drivers/phy/phy-rcar-gen2.c                                  |  1 +
 drivers/phy/phy-rcar-gen3-usb2.c                             |  1 +
 4 files changed, 17 insertions(+), 3 deletions(-)

-- 
2.1.4

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH 0/2] phy: rcar-gen2, rcar-gen3-usb2: add fallback binding Simon Horman <horms+renesas@verge.net.au> - 2016-03-02 03:40 +0100
  [PATCH 1/2] phy: rcar-gen2: add fallback binding Simon Horman <horms+renesas@verge.net.au> - 2016-03-02 03:40 +0100
    Re: [PATCH 1/2] phy: rcar-gen2: add fallback binding Geert Uytterhoeven <geert@linux-m68k.org> - 2016-03-02 10:40 +0100
      Re: [PATCH 1/2] phy: rcar-gen2: add fallback binding Simon Horman <horms@verge.net.au> - 2016-03-03 01:20 +0100

csiph-web