[PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Linus Walleij]

These compatible strings need to be added to extend support
for the RPM CC to cover MSM8660/APQ8060. We also need to add
enumberators to the include file for a few clocks that were
missing.

Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- Collect Rob's ACK
---
 Documentation/devicetree/bindings/clock/qcom,rpmcc.txt | 2 ++
 include/dt-bindings/clock/qcom,rpmcc.h                 | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
index a7235e9e1c97..d470a0187035 100644
--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
@@ -10,6 +10,8 @@ Required properties :
 - compatible : shall contain only one of the following. The generic
                compatible "qcom,rpmcc" should be also included.
 
+			"qcom,rpmcc-msm8660", "qcom,rpmcc"
+			"qcom,rpmcc-apq8060", "qcom,rpmcc"
 			"qcom,rpmcc-msm8916", "qcom,rpmcc"
 			"qcom,rpmcc-msm8974", "qcom,rpmcc"
 			"qcom,rpmcc-apq8064", "qcom,rpmcc"
diff --git a/include/dt-bindings/clock/qcom,rpmcc.h b/include/dt-bindings/clock/qcom,rpmcc.h
index 96b63c00249e..44358562a031 100644
--- a/include/dt-bindings/clock/qcom,rpmcc.h
+++ b/include/dt-bindings/clock/qcom,rpmcc.h
@@ -37,6 +37,10 @@
 #define RPM_SYS_FABRIC_A_CLK			19
 #define RPM_SFPB_CLK				20
 #define RPM_SFPB_A_CLK				21
+#define RPM_PLL4_CLK				22
+#define RPM_PLL4_A_CLK				23
+#define RPM_SMI_CLK				24
+#define RPM_SMI_A_CLK				25
 
 /* SMD RPM clocks */
 #define RPM_SMD_XO_CLK_SRC				0
-- 
2.9.3

[PATCH 2/5 v2] clk: qcom: Elaborate on "active" clocks in the RPM clock bindings

[Linus Walleij]

The concept of "active" clocks is just explained in a bried comment in the
device driver, let's explain it a bit more in the device tree bindings
so everyone understands this.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- Reword slighty in accordance with Stephens feedback.
---
 Documentation/devicetree/bindings/clock/qcom,rpmcc.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
index d470a0187035..833a89f06ae0 100644
--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt
@@ -18,6 +18,14 @@ Required properties :
 
 - #clock-cells : shall contain 1
 
+The clock enumerators are defined in <dt-bindings/clock/qcom,rpmcc.h>
+and come in pairs: FOO_CLK followed by FOO_A_CLK. The latter clock
+is an "active" clock, which means that the consumer only care that the
+clock is available when the apps CPU subsystem is active, i.e. not
+suspended or in deep idle. If it is important that the clock keeps running
+during system suspend, you need to specify the non-active clock, the one
+not containing *_A_* in the enumerator name.
+
 Example:
 	smd {
 		compatible = "qcom,smd";
-- 
2.9.3

[PATCH 4/5 v2] clk: qcom: Update DT bindings for MSM8660 LCC

[Linus Walleij]

This adds the right compatible string and header for the
MSM8660 LCC and some new defines to the dt-bindings header.

Take this opportunity to spell out the acronym LPASS for
Low-power Audio Subsystem.

Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- Add Rob's ACK.
---
 .../devicetree/bindings/clock/qcom,lcc.txt         |  5 +--
 include/dt-bindings/clock/qcom,lcc-msm8660.h       | 40 ++++++++++++++++++++++
 2 files changed, 43 insertions(+), 2 deletions(-)
 create mode 100644 include/dt-bindings/clock/qcom,lcc-msm8660.h

diff --git a/Documentation/devicetree/bindings/clock/qcom,lcc.txt b/Documentation/devicetree/bindings/clock/qcom,lcc.txt
index a3c78aa88038..4de51df37f1a 100644
--- a/Documentation/devicetree/bindings/clock/qcom,lcc.txt
+++ b/Documentation/devicetree/bindings/clock/qcom,lcc.txt
@@ -1,10 +1,11 @@
-Qualcomm LPASS Clock & Reset Controller Binding
-------------------------------------------------
+Qualcomm Low-power Audio Subsystem (LPASS) Clock & Reset Controller Binding
+---------------------------------------------------------------------------
 
 Required properties :
 - compatible : shall contain only one of the following:
 
 			"qcom,lcc-msm8960"
+			"qcom,lcc-msm8660"
 			"qcom,lcc-apq8064"
 			"qcom,lcc-ipq8064"
 			"qcom,lcc-mdm9615"
diff --git a/include/dt-bindings/clock/qcom,lcc-msm8660.h b/include/dt-bindings/clock/qcom,lcc-msm8660.h
new file mode 100644
index 000000000000..7cddcbd6b1ee
--- /dev/null
+++ b/include/dt-bindings/clock/qcom,lcc-msm8660.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2017 Linus Walleij <linus.walleij@linaro.org>
+ * Qualcomm MSM8660 Low-power Audio Subsystem (LPASS) Clock Controller
+ * devicetree definitions
+ */
+
+#ifndef _DT_BINDINGS_CLK_LCC_MSM8660_H
+#define _DT_BINDINGS_CLK_LCC_MSM8660_H
+
+#define LPA_PLL0			0
+#define MI2S_OSR_SRC			1
+#define MI2S_OSR_CLK			2
+#define MI2S_DIV_CLK			3
+#define MI2S_BIT_DIV_CLK		4
+#define MI2S_BIT_CLK			5
+#define CODEC_I2S_MIC_OSR_SRC		6
+#define CODEC_I2S_MIC_OSR_CLK		7
+#define CODEC_I2S_MIC_DIV_CLK		8
+#define CODEC_I2S_MIC_BIT_DIV_CLK	9
+#define CODEC_I2S_MIC_BIT_CLK		10
+#define SPARE_I2S_MIC_OSR_SRC		11
+#define SPARE_I2S_MIC_OSR_CLK		12
+#define SPARE_I2S_MIC_DIV_CLK		13
+#define SPARE_I2S_MIC_BIT_DIV_CLK	14
+#define SPARE_I2S_MIC_BIT_CLK		15
+#define CODEC_I2S_SPKR_OSR_SRC		16
+#define CODEC_I2S_SPKR_OSR_CLK		17
+#define CODEC_I2S_SPKR_DIV_CLK		18
+#define CODEC_I2S_SPKR_BIT_DIV_CLK	19
+#define CODEC_I2S_SPKR_BIT_CLK		20
+#define SPARE_I2S_SPKR_OSR_SRC		21
+#define SPARE_I2S_SPKR_OSR_CLK		22
+#define SPARE_I2S_SPKR_DIV_CLK		23
+#define SPARE_I2S_SPKR_BIT_DIV_CLK	24
+#define SPARE_I2S_SPKR_BIT_CLK		25
+#define PCM_SRC				26
+#define PCM_CLK_OUT			27
+#define PCM_CLK				28
+
+#endif
-- 
2.9.3

Re: [PATCH 2/5 v2] clk: qcom: Elaborate on "active" clocks in the RPM clock bindings

[Rob Herring]

On Wed, Apr 19, 2017 at 11:13:23AM +0200, Linus Walleij wrote:
> The concept of "active" clocks is just explained in a bried comment in the
> device driver, let's explain it a bit more in the device tree bindings
> so everyone understands this.
> 
> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Signed-off-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
> ChangeLog v1->v2:
> - Reword slighty in accordance with Stephens feedback.
> ---
>  Documentation/devicetree/bindings/clock/qcom,rpmcc.txt | 8 ++++++++
>  1 file changed, 8 insertions(+)

Despite my objections, you're just documenting what is already there.

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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Re: [PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Linus Walleij]

On Wed, Apr 19, 2017 at 11:13 AM, Linus Walleij
<linus.walleij@linaro.org> wrote:

> These compatible strings need to be added to extend support
> for the RPM CC to cover MSM8660/APQ8060. We also need to add
> enumberators to the include file for a few clocks that were
> missing.
>
> Cc: devicetree@vger.kernel.org
> Acked-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ChangeLog v1->v2:
> - Collect Rob's ACK

Ping on this patch set. It's been sitting for a month and was
not changed from v1 either, if you want me to change something
it'd be good to know.

Yours,
Linus Walleij

Re: [PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Linus Walleij]

On Wed, May 17, 2017 at 9:23 AM, Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
> On Wed, Apr 19, 2017 at 11:13 AM, Linus Walleij
> <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
>
>> These compatible strings need to be added to extend support
>> for the RPM CC to cover MSM8660/APQ8060. We also need to add
>> enumberators to the include file for a few clocks that were
>> missing.
>>
>> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
>> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
>> Signed-off-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
>> ---
>> ChangeLog v1->v2:
>> - Collect Rob's ACK
>
> Ping on this patch set. It's been sitting for a month and was
> not changed from v1 either, if you want me to change something
> it'd be good to know.

Ping on this again.

I am sorry if you guys are swamped, I just don't know what to do,
clock drivers are starting to become the bottleneck for everything
I do. I bet the ARM SoC maintainers must be noticing it too.

Unfortunately I am already managing two subsystems and cannot
volunteer to help out with a third, I would blow a fuse.

But it seems the CLK subsystem could use some co-maintainers?

Peter de Schrijver is a big authority in all things clocking (I clearly
remember him discussing the subject a lot at conferences with lots
of good points) so I would ask him to help, but I don't know how busy
Peter may be with nVidia business etc these days...

Yours,
Linus Walleij
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Re: [PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Peter De Schrijver]

On Wed, May 24, 2017 at 11:16:22AM +0200, Linus Walleij wrote:
> On Wed, May 17, 2017 at 9:23 AM, Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
> > On Wed, Apr 19, 2017 at 11:13 AM, Linus Walleij
> > <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
> >
> >> These compatible strings need to be added to extend support
> >> for the RPM CC to cover MSM8660/APQ8060. We also need to add
> >> enumberators to the include file for a few clocks that were
> >> missing.
> >>
> >> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> >> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> >> Signed-off-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> >> ---
> >> ChangeLog v1->v2:
> >> - Collect Rob's ACK
> >
> > Ping on this patch set. It's been sitting for a month and was
> > not changed from v1 either, if you want me to change something
> > it'd be good to know.
> 
> Ping on this again.
> 
> I am sorry if you guys are swamped, I just don't know what to do,
> clock drivers are starting to become the bottleneck for everything
> I do. I bet the ARM SoC maintainers must be noticing it too.
> 
> Unfortunately I am already managing two subsystems and cannot
> volunteer to help out with a third, I would blow a fuse.
> 
> But it seems the CLK subsystem could use some co-maintainers?
> 
> Peter de Schrijver is a big authority in all things clocking (I clearly
> remember him discussing the subject a lot at conferences with lots
> of good points) so I would ask him to help, but I don't know how busy
> Peter may be with nVidia business etc these days...
> 

I'm usually rather busy yes, but I could try to find some time for this if
asked for.

Peter.
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Re: [PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Stephen Boyd]

On 05/24, Linus Walleij wrote:
> On Wed, May 17, 2017 at 9:23 AM, Linus Walleij <linus.walleij@linaro.org> wrote:
> > On Wed, Apr 19, 2017 at 11:13 AM, Linus Walleij
> > <linus.walleij@linaro.org> wrote:
> >
> >> These compatible strings need to be added to extend support
> >> for the RPM CC to cover MSM8660/APQ8060. We also need to add
> >> enumberators to the include file for a few clocks that were
> >> missing.
> >>
> >> Cc: devicetree@vger.kernel.org
> >> Acked-by: Rob Herring <robh@kernel.org>
> >> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> >> ---
> >> ChangeLog v1->v2:
> >> - Collect Rob's ACK
> >
> > Ping on this patch set. It's been sitting for a month and was
> > not changed from v1 either, if you want me to change something
> > it'd be good to know.
> 
> Ping on this again.
> 
> I am sorry if you guys are swamped, I just don't know what to do,
> clock drivers are starting to become the bottleneck for everything
> I do. I bet the ARM SoC maintainers must be noticing it too.
> 
> Unfortunately I am already managing two subsystems and cannot
> volunteer to help out with a third, I would blow a fuse.
> 
> But it seems the CLK subsystem could use some co-maintainers?
> 
> Peter de Schrijver is a big authority in all things clocking (I clearly
> remember him discussing the subject a lot at conferences with lots
> of good points) so I would ask him to help, but I don't know how busy
> Peter may be with nVidia business etc these days...

Meh. Life happens and msm8660 is about a decade old now and not
something that I can easily review without digging through old
websites to find documentation on the code I worked on 7 years
ago. So sorry, but these sorts of patches are basically
approaching priority none for me and I have to steal time to
review them.

I'm getting back up to speed though on my mails, so things should
be good. Let me know if things seem broken next week please.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH 2/5 v2] clk: qcom: Elaborate on "active" clocks in the RPM clock bindings

[Stephen Boyd]

On 04/28, Rob Herring wrote:
> On Wed, Apr 19, 2017 at 11:13:23AM +0200, Linus Walleij wrote:
> > The concept of "active" clocks is just explained in a bried comment in the
> > device driver, let's explain it a bit more in the device tree bindings
> > so everyone understands this.
> > 
> > Cc: devicetree@vger.kernel.org
> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> > ---
> > ChangeLog v1->v2:
> > - Reword slighty in accordance with Stephens feedback.
> > ---
> >  Documentation/devicetree/bindings/clock/qcom,rpmcc.txt | 8 ++++++++
> >  1 file changed, 8 insertions(+)
> 
> Despite my objections, you're just documenting what is already there.
> 
> Acked-by: Rob Herring <robh@kernel.org>

Perhaps this can be put into the clk driver instead? Is that the
concern?

-- 
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a Linux Foundation Collaborative Project

Re: [PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Stephen Boyd]

On 04/19, Linus Walleij wrote:
> These compatible strings need to be added to extend support
> for the RPM CC to cover MSM8660/APQ8060. We also need to add
> enumberators to the include file for a few clocks that were
> missing.
> 
> Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Signed-off-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---

Applied to clk-qcom-rpm

-- 
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Re: [PATCH 1/5 v2] clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC

[Linus Walleij]

On Thu, Jun 1, 2017 at 9:38 AM, Stephen Boyd <sboyd@codeaurora.org> wrote:
> On 05/24, Linus Walleij wrote:

>> I am sorry if you guys are swamped, I just don't know what to do,
>> clock drivers are starting to become the bottleneck for everything
>> I do. I bet the ARM SoC maintainers must be noticing it too.
(...)
> Meh. Life happens and msm8660 is about a decade old now and not
> something that I can easily review without digging through old
> websites to find documentation on the code I worked on 7 years
> ago. So sorry, but these sorts of patches are basically
> approaching priority none for me and I have to steal time to
> review them.

Sorry the reference above was mainly to the Gemini SoC clock driver
which was blocking ARM consolidation, the fact that this MSM8660
thing was stalled too just got me to think it was related.

I understand the MSM8660 is low prio, but the first DragonBoard
was pushed to developers en masse in 2012 (yours truly included),
which was just half a decade ago, and started
the community boards effort from Qualcomm, and yeah, community
moves slower than markets usually, the board is still supported by
the BSquare company that managed the board release for Qualcomm,
I can still login and check schematics and support forums,
cool isn't it :D

Yours,
Linus Walleij