* [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses
2023-01-24 19:23 [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings Andrew Halaney
@ 2023-01-24 19:23 ` Andrew Halaney
2023-01-24 21:45 ` Konrad Dybcio
2023-01-25 6:55 ` Shazad Hussain
2023-01-24 20:31 ` [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings Brian Masney
` (2 subsequent siblings)
3 siblings, 2 replies; 7+ messages in thread
From: Andrew Halaney @ 2023-01-24 19:23 UTC (permalink / raw)
To: andersson
Cc: agross, konrad.dybcio, robh+dt, krzysztof.kozlowski+dt,
linux-arm-msm, devicetree, linux-kernel, bmasney, quic_shazhuss,
Andrew Halaney
It isn't obvious in the current devicetree what is connected. Go ahead
and document what's on the other end.
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
---
Not sure if this sort of patch is actually welcomed or not but I went
through this exercise (for the prior patch) and thought it might be
useful to document.
Shazad, this also highlights (unless I misread things) that i2c12 has no
use for us, right? If agreed I can remove it but sorting through the
lore links that provided all this it seems like at the time it was
desired to be added.
Thanks,
Andrew
arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
index cb9fbdeb5a9e..3478ab91fe73 100644
--- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
@@ -317,6 +317,7 @@ &xo_board_clk {
&tlmm {
i2c0_default: i2c0-default-state {
+ /* To USB7002T-I/KDXVA0 USB hub (SIP1 only) */
pins = "gpio135", "gpio136";
function = "qup0";
drive-strength = <2>;
@@ -324,6 +325,7 @@ i2c0_default: i2c0-default-state {
};
i2c1_default: i2c1-default-state {
+ /* To PM40028B-F3EI PCIe switch */
pins = "gpio158", "gpio159";
function = "qup1";
drive-strength = <2>;
@@ -331,6 +333,7 @@ i2c1_default: i2c1-default-state {
};
i2c12_default: i2c12-default-state {
+ /* Not connected */
pins = "gpio0", "gpio1";
function = "qup12";
drive-strength = <2>;
@@ -338,6 +341,7 @@ i2c12_default: i2c12-default-state {
};
i2c15_default: i2c15-default-state {
+ /* To display connector (SIP1 only) */
pins = "gpio36", "gpio37";
function = "qup15";
drive-strength = <2>;
@@ -345,6 +349,7 @@ i2c15_default: i2c15-default-state {
};
i2c18_default: i2c18-default-state {
+ /* To ASM330LHH IMU (SIP1 only) */
pins = "gpio66", "gpio67";
function = "qup18";
drive-strength = <2>;
--
2.39.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses
2023-01-24 19:23 ` [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses Andrew Halaney
@ 2023-01-24 21:45 ` Konrad Dybcio
2023-01-25 6:55 ` Shazad Hussain
1 sibling, 0 replies; 7+ messages in thread
From: Konrad Dybcio @ 2023-01-24 21:45 UTC (permalink / raw)
To: Andrew Halaney, andersson
Cc: agross, robh+dt, krzysztof.kozlowski+dt, linux-arm-msm,
devicetree, linux-kernel, bmasney, quic_shazhuss
On 24.01.2023 20:23, Andrew Halaney wrote:
> It isn't obvious in the current devicetree what is connected. Go ahead
> and document what's on the other end.
>
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
> ---
Other boards do similar things under the i2c host nodes (see
e.g. sm8450-sony-xperia-nagara.dtsi..
>
> Not sure if this sort of patch is actually welcomed or not but I went
> through this exercise (for the prior patch) and thought it might be
> useful to document.
..and yes it is very welcome!
>
> Shazad, this also highlights (unless I misread things) that i2c12 has no
> use for us, right? If agreed I can remove it but sorting through the
> lore links that provided all this it seems like at the time it was
> desired to be added.
It's fine if you guys decide that it's useful for some kind expansion
mezzanine or other add-on board, but if it's not connected anywhere
you may wish to disable the host and remove the pinctrl entries, as
keeping it enabled essentially wastes some power.
Konrad
>
> Thanks,
> Andrew
>
> arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> index cb9fbdeb5a9e..3478ab91fe73 100644
> --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> @@ -317,6 +317,7 @@ &xo_board_clk {
>
> &tlmm {
> i2c0_default: i2c0-default-state {
> + /* To USB7002T-I/KDXVA0 USB hub (SIP1 only) */
> pins = "gpio135", "gpio136";
> function = "qup0";
> drive-strength = <2>;
> @@ -324,6 +325,7 @@ i2c0_default: i2c0-default-state {
> };
>
> i2c1_default: i2c1-default-state {
> + /* To PM40028B-F3EI PCIe switch */
> pins = "gpio158", "gpio159";
> function = "qup1";
> drive-strength = <2>;
> @@ -331,6 +333,7 @@ i2c1_default: i2c1-default-state {
> };
>
> i2c12_default: i2c12-default-state {
> + /* Not connected */
> pins = "gpio0", "gpio1";
> function = "qup12";
> drive-strength = <2>;
> @@ -338,6 +341,7 @@ i2c12_default: i2c12-default-state {
> };
>
> i2c15_default: i2c15-default-state {
> + /* To display connector (SIP1 only) */
> pins = "gpio36", "gpio37";
> function = "qup15";
> drive-strength = <2>;
> @@ -345,6 +349,7 @@ i2c15_default: i2c15-default-state {
> };
>
> i2c18_default: i2c18-default-state {
> + /* To ASM330LHH IMU (SIP1 only) */
> pins = "gpio66", "gpio67";
> function = "qup18";
> drive-strength = <2>;
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses
2023-01-24 19:23 ` [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses Andrew Halaney
2023-01-24 21:45 ` Konrad Dybcio
@ 2023-01-25 6:55 ` Shazad Hussain
1 sibling, 0 replies; 7+ messages in thread
From: Shazad Hussain @ 2023-01-25 6:55 UTC (permalink / raw)
To: Andrew Halaney, andersson
Cc: agross, konrad.dybcio, robh+dt, krzysztof.kozlowski+dt,
linux-arm-msm, devicetree, linux-kernel, bmasney
On 1/25/2023 12:53 AM, Andrew Halaney wrote:
> It isn't obvious in the current devicetree what is connected. Go ahead
> and document what's on the other end.
>
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
> ---
>
> Not sure if this sort of patch is actually welcomed or not but I went
> through this exercise (for the prior patch) and thought it might be
> useful to document.
>
> Shazad, this also highlights (unless I misread things) that i2c12 has no
> use for us, right? If agreed I can remove it but sorting through the
> lore links that provided all this it seems like at the time it was
> desired to be added.
>
Andrew, i2c12 has GPU PWR ctl use case, so let's keep it enabled.
-Shazad
> Thanks,
> Andrew
>
> arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> index cb9fbdeb5a9e..3478ab91fe73 100644
> --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> @@ -317,6 +317,7 @@ &xo_board_clk {
>
> &tlmm {
> i2c0_default: i2c0-default-state {
> + /* To USB7002T-I/KDXVA0 USB hub (SIP1 only) */
> pins = "gpio135", "gpio136";
> function = "qup0";
> drive-strength = <2>;
> @@ -324,6 +325,7 @@ i2c0_default: i2c0-default-state {
> };
>
> i2c1_default: i2c1-default-state {
> + /* To PM40028B-F3EI PCIe switch */
> pins = "gpio158", "gpio159";
> function = "qup1";
> drive-strength = <2>;
> @@ -331,6 +333,7 @@ i2c1_default: i2c1-default-state {
> };
>
> i2c12_default: i2c12-default-state {
> + /* Not connected */
> pins = "gpio0", "gpio1";
> function = "qup12";
> drive-strength = <2>;
> @@ -338,6 +341,7 @@ i2c12_default: i2c12-default-state {
> };
>
> i2c15_default: i2c15-default-state {
> + /* To display connector (SIP1 only) */
> pins = "gpio36", "gpio37";
> function = "qup15";
> drive-strength = <2>;
> @@ -345,6 +349,7 @@ i2c15_default: i2c15-default-state {
> };
>
> i2c18_default: i2c18-default-state {
> + /* To ASM330LHH IMU (SIP1 only) */
> pins = "gpio66", "gpio67";
> function = "qup18";
> drive-strength = <2>;
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings
2023-01-24 19:23 [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings Andrew Halaney
2023-01-24 19:23 ` [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses Andrew Halaney
@ 2023-01-24 20:31 ` Brian Masney
2023-01-24 21:43 ` Konrad Dybcio
2023-01-25 6:56 ` Shazad Hussain
3 siblings, 0 replies; 7+ messages in thread
From: Brian Masney @ 2023-01-24 20:31 UTC (permalink / raw)
To: Andrew Halaney
Cc: andersson, agross, konrad.dybcio, robh+dt, krzysztof.kozlowski+dt,
linux-arm-msm, devicetree, linux-kernel, quic_shazhuss
On Tue, Jan 24, 2023 at 01:23:50PM -0600, Andrew Halaney wrote:
> Some of the pinctrl groups were invalid for the selected pins. Select
> the proper qup group to fix these warnings:
>
> [ 6.523566] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio135" for function "qup15"
> [ 6.535042] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio136" for function "qup15"
> [ 6.597536] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio158" for function "qup15"
> [ 6.597544] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio159" for function "qup15"
> [ 6.597991] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio0" for function "qup15"
> [ 6.597996] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio1" for function "qup15"
>
> Fixes: e073899ec3e1 ("arm64: dts: qcom: sa8540p-ride: add i2c nodes")
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings
2023-01-24 19:23 [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings Andrew Halaney
2023-01-24 19:23 ` [PATCH 2/2] arm64: dts: qcom: sa8540p-ride: Document i2c busses Andrew Halaney
2023-01-24 20:31 ` [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings Brian Masney
@ 2023-01-24 21:43 ` Konrad Dybcio
2023-01-25 6:56 ` Shazad Hussain
3 siblings, 0 replies; 7+ messages in thread
From: Konrad Dybcio @ 2023-01-24 21:43 UTC (permalink / raw)
To: Andrew Halaney, andersson
Cc: agross, robh+dt, krzysztof.kozlowski+dt, linux-arm-msm,
devicetree, linux-kernel, bmasney, quic_shazhuss
On 24.01.2023 20:23, Andrew Halaney wrote:
> Some of the pinctrl groups were invalid for the selected pins. Select
> the proper qup group to fix these warnings:
>
> [ 6.523566] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio135" for function "qup15"
> [ 6.535042] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio136" for function "qup15"
> [ 6.597536] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio158" for function "qup15"
> [ 6.597544] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio159" for function "qup15"
> [ 6.597991] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio0" for function "qup15"
> [ 6.597996] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio1" for function "qup15"
>
> Fixes: e073899ec3e1 ("arm64: dts: qcom: sa8540p-ride: add i2c nodes")
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
> ---
This matches the pinctrl .c driver.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Konrad
> arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> index eacc1764255b..cb9fbdeb5a9e 100644
> --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> @@ -318,21 +318,21 @@ &xo_board_clk {
> &tlmm {
> i2c0_default: i2c0-default-state {
> pins = "gpio135", "gpio136";
> - function = "qup15";
> + function = "qup0";
> drive-strength = <2>;
> bias-pull-up;
> };
>
> i2c1_default: i2c1-default-state {
> pins = "gpio158", "gpio159";
> - function = "qup15";
> + function = "qup1";
> drive-strength = <2>;
> bias-pull-up;
> };
>
> i2c12_default: i2c12-default-state {
> pins = "gpio0", "gpio1";
> - function = "qup15";
> + function = "qup12";
> drive-strength = <2>;
> bias-pull-up;
> };
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings
2023-01-24 19:23 [PATCH 1/2] arm64: dts: qcom: sa8540p-ride: Fix some i2c pinctrl settings Andrew Halaney
` (2 preceding siblings ...)
2023-01-24 21:43 ` Konrad Dybcio
@ 2023-01-25 6:56 ` Shazad Hussain
3 siblings, 0 replies; 7+ messages in thread
From: Shazad Hussain @ 2023-01-25 6:56 UTC (permalink / raw)
To: Andrew Halaney, andersson
Cc: agross, konrad.dybcio, robh+dt, krzysztof.kozlowski+dt,
linux-arm-msm, devicetree, linux-kernel, bmasney
On 1/25/2023 12:53 AM, Andrew Halaney wrote:
> Some of the pinctrl groups were invalid for the selected pins. Select
> the proper qup group to fix these warnings:
>
> [ 6.523566] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio135" for function "qup15"
> [ 6.535042] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio136" for function "qup15"
> [ 6.597536] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio158" for function "qup15"
> [ 6.597544] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio159" for function "qup15"
> [ 6.597991] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio0" for function "qup15"
> [ 6.597996] sc8280xp-tlmm f100000.pinctrl: invalid group "gpio1" for function "qup15"
>
> Fixes: e073899ec3e1 ("arm64: dts: qcom: sa8540p-ride: add i2c nodes")
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
> ---
Reviewed-by: Shazad Hussain <quic_shazhuss@quicinc.com>
> arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> index eacc1764255b..cb9fbdeb5a9e 100644
> --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> @@ -318,21 +318,21 @@ &xo_board_clk {
> &tlmm {
> i2c0_default: i2c0-default-state {
> pins = "gpio135", "gpio136";
> - function = "qup15";
> + function = "qup0";
> drive-strength = <2>;
> bias-pull-up;
> };
>
> i2c1_default: i2c1-default-state {
> pins = "gpio158", "gpio159";
> - function = "qup15";
> + function = "qup1";
> drive-strength = <2>;
> bias-pull-up;
> };
>
> i2c12_default: i2c12-default-state {
> pins = "gpio0", "gpio1";
> - function = "qup15";
> + function = "qup12";
> drive-strength = <2>;
> bias-pull-up;
> };
^ permalink raw reply [flat|nested] 7+ messages in thread