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Amlogic 64-bit DT updates for v4.12

GIT PULL Kevin Hilman 4 participants 5 messages Mar 29, 2017 – Mar 31, 2017

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Kevin Hilman

author maintainer
#0 lore raw

Olof, Arnd,

Below are some 64-bit DT changes for Amlogic platforms for v4.12. Note that this branch includes a merge of an immutable branch from the clk tree (clk-meson) due to dependencies on new clocks added to the meson clock driver and used in these DT updates.

Kevin

The following changes since commit c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201:

Linux 4.11-rc1 (2017-03-05 12:59:56 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic.git tags/amlogic-dt64

for you to fetch changes up to a1093238d6b148b46b7f3e0642681ec41baa1d0b:

Merge branch 'clk-meson' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux into v4.12/dt64 (2017-03-28 10:47:49 -0700)

----------------------------------------------------------------
Amlogic 64-bit DT updates for v4.12
- pinctrl: new pins for audio
- clocks: more clocks exposed for GFX, audio
- new board: Khadas Vim (S905X)
- new board: HwaCom AmazeTV (S905X)
- ethernet phy: add GPIO resets

----------------------------------------------------------------
Carlo Caione (3):
dt-bindings: Add vendor prefix for Hwacom Systems Inc.
dt-bindings: amlogic: Add HwaCom board
ARM64: dts: meson-gxl: Add support for HwaCom AmazeTV

Jerome Brunet (9):
clk: meson: fix SET_PARM macro
clk: meson: add missing const qualifiers on gate arrays
clk: meson8b: put dividers and muxes in tables
clk: gxbb: put dividers and muxes in tables
clk: meson: mpll: add rw operation
clk: meson: gxbb: mpll: use rw operation
clk: meson8b: add the mplls clocks 0, 1 and 2
clk: meson: mpll: correct N2 maximum value
dt-bindings: clk: gxbb: expose i2s output clock gates

Kevin Hilman (1):

      Merge branch 'clk-meson' of git://git.kernel.org/.../clk/linux into v4.12/dt64

Martin Blumenstingl (14):
ARM64: dts: meson-gxbb-odroidc2: add the ethernet PHY's reset GPIO
ARM64: dts: meson-gxbb-p200: add the ethernet PHY's reset GPIO
ARM64: dts: meson-gxbb-vega-s95: add the ethernet PHY's reset GPIO
ARM64: dts: meson-gxbb-nexbox-a95x: add the ethernet PHY's reset GPIO
ARM64: dts: meson-gxbb-wetek-hub: add the ethernet PHY's reset GPIO
ARM64: dts: meson-gxbb-wetek-play2: add the ethernet PHY's reset GPIO
ARM64: dts: meson-gxbb-p201: fix ethernet support
ARM64: dts: amlogic: add the ethernet TX delay configuration
ARM64: dts: meson-gx: remove the phy-mode property from meson-gx
ARM64: dts: meson-gxl: improve support for the P212 reference design
ARM64: dts: amlogic: meson-gxl: add the missing PWM pins
devicetree: add vendor prefix for Khadas
dt-bindings: amlogic: add the Khadas VIM
ARM64: dts: meson-gxl: add support for the Khadas VIM board

Neil Armstrong (20):
ARM64: dts: meson-gx: Add Buttons to Q200 and P230 boards
ARM64: dts: meson-gxbb-odroidc2: Add GPIO lines names
ARM64: dts: meson-gxbb-odroidc2: Fix TFLASH VDD regulator GPIO line
ARM64: dts: meson-gx: Finally move common nodes to GX dtsi
ARM64: dts: meson-gx: empty line cleanup
ARM64: dts: meson-gx: Prepend GX generic compatible like other nodes
ARM64: dts: meson-gxl: Add missing pinctrl pins groups
clk: meson-gxbb: Add MALI clock IDS
clk: meson-gxbb: Add MALI clocks
clk: meson: Add support for parameters for specific PLLs
clk: meson-gxbb: Add GP0 PLL init parameters
clk: meson-gxbb: Add GXL/GXM GP0 Variant
clk: meson-gxbb: Expose GP0 dt-bindings clock id
dt-bindings: clock: gxbb-clkc: Add GXL compatible variant
ARM64: dts: meson-gx: Add Mali nodes for GXBB and GXL
ARM64: dts: meson-gxbb: Add gpio-ranges properties
ARM64: dts: meson-gxl: Add gpio-ranges properties
ARM: dts: meson8: Add gpio-ranges properties
ARM: dts: meson8b: Add gpio-ranges properties
ARM64: dts: meson-gxbb: Add USB Hub GPIO hog

jbrunet (4):
ARM64: dts: meson-gxbb: add i2s output pins
ARM64: dts: meson-gxbb: add spdif output pins
ARM64: dts: meson-gxl: add i2s output pins
ARM64: dts: meson-gxl: add spdif output pins

 Documentation/devicetree/bindings/arm/amlogic.txt              |   3 +
 Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt  |   3 +-
 Documentation/devicetree/bindings/vendor-prefixes.txt          |   2 +
 arch/arm/boot/dts/meson8.dtsi                                  |   2 +
 arch/arm/boot/dts/meson8b.dtsi                                 |   2 +
 arch/arm64/boot/dts/amlogic/Makefile                           |   2 +
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi                      |  40 +++++--
 arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts         |  17 +++
 arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts            |  75 ++++++++++++-
 arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts                |  25 +++++
 arch/arm64/boot/dts/amlogic/meson-gxbb-p201.dts                |  11 ++
 arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi               |   6 --
 arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi           |  21 +++-
 arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts           |  26 +++++
 arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts         |  26 +++++
 arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi                    | 160 ++++++++++++++++++++++------
 arch/arm64/boot/dts/amlogic/meson-gxl-mali.dtsi                |  43 ++++++++
 arch/arm64/boot/dts/amlogic/meson-gxl-s905d-p230.dts           |  42 ++++++++
 arch/arm64/boot/dts/amlogic/meson-gxl-s905d.dtsi               |   1 +
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts | 164 ++++++++++++++++++++++++++++
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts     | 114 ++++++++++++++++++++
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dts           |  21 ++--
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi          | 173 ++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x.dtsi               |   1 +
 arch/arm64/boot/dts/amlogic/meson-gxl.dtsi                     | 181 +++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts            |   2 +
 arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts                 |  42 ++++++++
 drivers/clk/meson/clk-mpll.c                                   | 152 +++++++++++++++++++++++++-
 drivers/clk/meson/clk-pll.c                                    |  53 +++++++++-
 drivers/clk/meson/clkc.h                                       |  29 ++++-
 drivers/clk/meson/gxbb.c                                       | 505 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------
 drivers/clk/meson/gxbb.h                                       |  23 ++--
 drivers/clk/meson/meson8b.c                                    | 127 +++++++++++++++++++++-
 drivers/clk/meson/meson8b.h                                    |  20 +++-
 include/dt-bindings/clock/gxbb-clkc.h                          |  11 ++
 35 files changed, 2011 insertions(+), 114 deletions(-)
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-mali.dtsi
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
#1 lore raw
Quoted 6 lines · Kevin Hilman

Olof, Arnd,

Below are some 64-bit DT changes for Amlogic platforms for v4.12. Note that this branch includes a merge of an immutable branch from the clk tree (clk-meson) due to dependencies on new clocks added to the meson clock driver and used in these DT updates.

I did not pull this one because of the silly dependency. The device tree files should be completely independent of the driver changes.

Here I see commits like these:

commit fd86d3edb417d5c719fa0ffc4adf9b99e1f2db48

Author: Neil Armstrong <[email protected]>
Date:   Wed Mar 22 11:32:26 2017 +0100

clk: meson-gxbb: Expose GP0 dt-bindings clock id

This patch exposes the GP0 PLL clock id in the dt bindings.

Link lkml.kernel.org/r/1490178747-14837-5-git-send-email-narmstrong at baylibre.com
(quoted diff) +0 -0

b/include/dt-bindings/clock/gxbb-clkc.h
index ef7d6b792405..cce6cb5418f1 100644

include/dt-bindings/clock/gxbb-clkc.h +1 -0
@@ -10,6 +10,7 @@
 #define CLKID_FCLK_DIV2                4
 #define CLKID_FCLK_DIV3                5
 #define CLKID_FCLK_DIV4                6
+#define CLKID_GP0_PLL          9
 #define CLKID_CLK81            12
 #define CLKID_MPLL2            15
 #define CLKID_SPI              34

commit 7c4aabd0e19491749488b363fa409956fa3857bb

Author: Neil Armstrong <[email protected]>
Date:   Wed Mar 22 11:18:53 2017 +0100

clk: meson-gxbb: Add MALI clock IDS

Add missing MALI clock IDs and expose the muxes and gates in the
dt-bindings.

Link lkml.kernel.org/r/1490177935-9646-2-git-send-email-narmstrong at baylibre.com
(quoted diff) +0 -0

b/include/dt-bindings/clock/gxbb-clkc.h
index f08f06dd7702..ef7d6b792405 100644

include/dt-bindings/clock/gxbb-clkc.h +5 -0
@@ -35,5 +35,10 @@
 #define CLKID_SD_EMMC_C                96
 #define CLKID_SAR_ADC_CLK      97
 #define CLKID_SAR_ADC_SEL      98
+#define CLKID_MALI_0_SEL       100
+#define CLKID_MALI_0           102
+#define CLKID_MALI_1_SEL       103
+#define CLKID_MALI_1           105
+#define CLKID_MALI             106
 
 #endif /* __GXBB_CLKC_H */

commit 7e148d522982b29c454a31386eb3d27b10d5adbc

Author: Jerome Brunet <[email protected]>
Date:   Thu Mar 9 11:41:54 2017 +0100

dt-bindings: clk: gxbb: expose i2s output clock gates

Link lkml.kernel.org/r/20170309104154.28295-10-jbrunet at baylibre.com
(quoted diff) +0 -0

b/include/dt-bindings/clock/gxbb-clkc.h
index 692846c7941b..f08f06dd7702 100644

include/dt-bindings/clock/gxbb-clkc.h +4 -0
@@ -16,6 +16,10 @@
 #define CLKID_I2C              22
 #define CLKID_SAR_ADC          23
 #define CLKID_ETH              36
+#define CLKID_AIU_GLUE         38
+#define CLKID_I2S_OUT          40
+#define CLKID_MIXER_IFACE      44
+#define CLKID_AIU              47
 #define CLKID_USB0             50
 #define CLKID_USB1             51
 #define CLKID_USB              55

Which add random macros in the middle of the number space.

Since the header changes are in an immutable branch, it's probably too late to fix this for 4.12, but maybe we can get the header into a form that allows us to do future DT changes without having to wait an extra release. The clock driver apparently already defines some of the numbers above, so you can fill all of those in already.

Arnd

author maintainer
#2 lore raw
Quoted 10 lines · Arnd Bergmann
Quoted 6 lines · Kevin Hilman

Olof, Arnd,

Below are some 64-bit DT changes for Amlogic platforms for v4.12. Note that this branch includes a merge of an immutable branch from the clk tree (clk-meson) due to dependencies on new clocks added to the meson clock driver and used in these DT updates.

I did not pull this one because of the silly dependency. The device tree files should be completely independent of the driver changes.

Aaargh, this is getting very frustrating.

[...]

Quoted 7 lines

Which add random macros in the middle of the number space.

Since the header changes are in an immutable branch, it's probably too late to fix this for 4.12, but maybe we can get the header into a form that allows us to do future DT changes without having to wait an extra release. The clock driver apparently already defines some of the numbers above, so you can fill all of those in already.

We could, but this is in direct conflict with the recommendations of the clk maintainers to not expose clock IDs to the DT until we know they are used because, well, things change.

Can we *please* get some clarity on on this between arm-soc and the clk maintainers? I've been asking for a couple merge windows now.

Irritated,

Kevin

#3 lore raw
Quoted 10 lines · Kevin Hilman
Quoted 8 lines · Arnd Bergmann
Quoted 6 lines · Kevin Hilman

Olof, Arnd,

Below are some 64-bit DT changes for Amlogic platforms for v4.12. Note that this branch includes a merge of an immutable branch from the clk tree (clk-meson) due to dependencies on new clocks added to the meson clock driver and used in these DT updates.

Quoted 4 lines
Quoted 2 lines

I did not pull this one because of the silly dependency. The device tree files should be completely independent of the driver changes.

Aaargh, this is getting very frustrating.

I tried to make this point very early on in the development, we don't want to be changing both driver and dt if we are adding things like IDs for gated clocks.

For example, having an almost 1:1 mapping from clock-id to bit-in-hardware would make life much easier, even if the driver had a little bit more code to create clocks at the probe time, it would have meant that DT additions for new peripherals would have been much easier.

Quoted 26 lines

[...]

Quoted 7 lines

Which add random macros in the middle of the number space.

Since the header changes are in an immutable branch, it's probably too late to fix this for 4.12, but maybe we can get the header into a form that allows us to do future DT changes without having to wait an extra release. The clock driver apparently already defines some of the numbers above, so you can fill all of those in already.

We could, but this is in direct conflict with the recommendations of the clk maintainers to not expose clock IDs to the DT until we know they are used because, well, things change.

Can we *please* get some clarity on on this between arm-soc and the clk maintainers? I've been asking for a couple merge windows now.

Irritated,

Kevin

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Signature · 2 lines
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius
#4 lore raw

Quoting Ben Dooks (2017-03-31 09:11:17)

Quoted 20 lines · Kevin Hilman
Quoted 10 lines
Quoted 8 lines · Arnd Bergmann
Quoted 6 lines · Kevin Hilman

Olof, Arnd,

Below are some 64-bit DT changes for Amlogic platforms for v4.12. Note that this branch includes a merge of an immutable branch from the clk tree (clk-meson) due to dependencies on new clocks added to the meson clock driver and used in these DT updates.

Quoted 4 lines
Quoted 2 lines

I did not pull this one because of the silly dependency. The device tree files should be completely independent of the driver changes.

Aaargh, this is getting very frustrating.

I tried to make this point very early on in the development, we don't want to be changing both driver and dt if we are adding things like IDs for gated clocks.

Quoted 5 lines

For example, having an almost 1:1 mapping from clock-id to bit-in-hardware would make life much easier, even if the driver had a little bit more code to create clocks at the probe time, it would have meant that DT additions for new peripherals would have been much easier.

It would be great if the hardware was designed in such a way to make that possible. A lot of clock controller hardware simply isn't.

We're talking about defining a reference to a clock control, somewhere in the middle of the clock tree, that maybe we didn't know existed until now. This simply is not the same as enumerating physical pins or something like that.

To be clear, all of the leaf clock (gates) were defined in DT from the very beginning for the SoC in question. This is perfectly in-line with Arnd's world-view. These gates are very orderly and correspond directly to the consumer devices that take them as input.

It's the mess of clocks that make up the "middle" of the tree that cause these problems. I don't see why we can't agree on a way to update the DT headers in such cases.

Quoted 11 lines
Quoted 11 lines

[...]

Quoted 7 lines

Which add random macros in the middle of the number space.

Since the header changes are in an immutable branch, it's probably too late to fix this for 4.12, but maybe we can get the header into a form that allows us to do future DT changes without having to wait an extra release. The clock driver apparently already defines some of the numbers above, so you can fill all of those in already.

Quoted 6 lines
Quoted 6 lines

We could, but this is in direct conflict with the recommendations of the clk maintainers to not expose clock IDs to the DT until we know they are used because, well, things change.

Can we *please* get some clarity on on this between arm-soc and the clk maintainers? I've been asking for a couple merge windows now.

I'm hopeful that that the arm-soc maintainers can see it my way ;-)

I'll explain the thought process behind the gxbb clk IDs in DT again:

1) we don't know about all the clocks ahead of time. New documentation is always forthcoming, especially in regards to multimedia-focused IP

2) we do know about all of the leaf clocks that devices take as input and expose them in DT from the very beginning, as we should

3) ideally we should not need to expose any non-leaf clocks in DT. This would be akin to exposing private data or state machine internals in DT, when the consumer nodes only care about a phandle to their input

4) ideally consumer devices should reference only the leaf clocks. Ideally the framework & clk provider driver should be smart enough to Do The Right Thing.

Items #3 and #4 are not always true, we don't life in an ideal world and hence, sometimes we add new clock IDs to DT. This should not be grounds for a patch not making it into the merge window IMO.

Best regards,
Mike

Quoted 19 lines
Quoted 10 lines

Irritated,

Kevin

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Signature · 6 lines
Ben Dooks                               http://www.codethink.co.uk/
Senior Engineer                         Codethink - Providing Genius
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