openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

Allwinner fixes - round 2 

One additional fix regarding HDMI on the R40 SoC.
 
 Based on preliminary tests and code dumps for the R40, it was thought
 that the whole HDMI block was the same on the R40 and A64.
 
 Recent tests regarding the A64 showed that this was not the case. The
 HDMI PHY on the A64 only has one clock parent. How this occurs at the
 hardware level is unclear, as Allwinner has not given any feedback on
 this matter. Nevertheless it is clear that the hardware acts differently
 between the A64 and R40 in such a way that the R40's HDMI PHY is not
 backward compatible with the A64's. As such we need to drop the fallback
 compatible string in the R40's device tree. This was added in v4.19-rc1.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCgAsFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAlujGKAOHHdlbnNAY3Np
 ZS5vcmcACgkQOJpUIZwPJDAX/RAAqQWmXmxp0m8N4L8FE4cnhWgqA4OhKi5Ehtc1
 qDnmmzitH4nTHzsTFu4zeQ5W7qv/+qZAiFHLlcLouhJJye3LKP4V6zJ15e6oVPM+
 5O2UuT95yOMH7wXOP0tOb5R6mNaLyFxU2L22/zVVQ4lxQNOKNcuR3QWWigQgRD7g
 QagSjUFG9Afg3SJyO0Fyz4qVYHDNuvFbHROM6FfCrqId+fduitLgi0U6FfLQXrVg
 G3jY9w4+CGSMwvBeNL2Ai9zIiDNJA+ZFeGPx43wvXrEpAg+6+oUQuaj+IVkZNsrz
 7Eu1EiZgD7w16IVKl/Eb4tw8iplm9sbAzvSgt8uPEUDgSBTAuJnk3kdAsYk/AHvR
 3YX6ftPzF1+TevB8N7zs03Q8Q08pGroq9Q4yi5g+7muPgpXKJrL7rLxl0BrHGhWv
 E+WkPrjosKHqGiXFbSyhcReKBbtNGE2yUJiIbhl7sNKIkEkDzlpvG3teKyCMIoRV
 NVP02LYHz0zUJXE7BIATB1Fi4QW45ymvwZn/qegfJkbNeWLu1HFykhAMPhpyTJtK
 0iWgzdHEh8q3of6UfHOD5tuLqFbEg/t4c+0ZDP2PygtpPS3QywZL/z2r4Nrsd896
 cSfjrFowIP9RcXn+RF0/EOxlO+Ygu81XRziLIzKSEaIv9pgKbpTiKN7PqyZYUFWN
 PdlTaCk=
 =eo72
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-fixes-for-4.19-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes

Allwinner fixes - round 2

One additional fix regarding HDMI on the R40 SoC.

Based on preliminary tests and code dumps for the R40, it was thought
that the whole HDMI block was the same on the R40 and A64.

Recent tests regarding the A64 showed that this was not the case. The
HDMI PHY on the A64 only has one clock parent. How this occurs at the
hardware level is unclear, as Allwinner has not given any feedback on
this matter. Nevertheless it is clear that the hardware acts differently
between the A64 and R40 in such a way that the R40's HDMI PHY is not
backward compatible with the A64's. As such we need to drop the fallback
compatible string in the R40's device tree. This was added in v4.19-rc1.

* tag 'sunxi-fixes-for-4.19-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  ARM: dts: sun8i: drop A64 HDMI PHY fallback compatible from R40 DT

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2018-09-23 05:30:28 -07:00
parent a4986b0828 13b91ed77a
commit e6f0e1c756
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/boot/dts/sun8i-r40.dtsi
View File

@ -800,8 +800,7 @@ hdmi_out: port@1 {
};
hdmi_phy: hdmi-phy@1ef0000 {
compatible = "allwinner,sun8i-r40-hdmi-phy",
"allwinner,sun50i-a64-hdmi-phy";
compatible = "allwinner,sun8i-r40-hdmi-phy";
reg = <0x01ef0000 0x10000>;
clocks = <&ccu CLK_BUS_HDMI1>, <&ccu CLK_HDMI_SLOW>,
<&ccu 7>, <&ccu 16>;