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[PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c

Started byPaul Kocialkowski <contact@paulk.fr>
First post2017-01-22 17:00 +0100
Last post2017-01-25 12:20 +0100
Articles 4 — 3 participants

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  [PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c Paul Kocialkowski <contact@paulk.fr> - 2017-01-22 17:00 +0100
    Re: [PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c Thierry Reding <thierry.reding@gmail.com> - 2017-01-25 12:10 +0100
      Re: [PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c Jon Hunter <jonathanh@nvidia.com> - 2017-01-25 12:20 +0100
        Re: [PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c Thierry Reding <thierry.reding@gmail.com> - 2017-01-25 12:20 +0100

#1564444 — [PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c

FromPaul Kocialkowski <contact@paulk.fr>
Date2017-01-22 17:00 +0100
Subject[PATCH v2 5/6] ARM: tegra: nyan-big: Proper pinmux for TPM i2c
Message-ID<t2sIF-2A5-9@gated-at.bofh.it>
This corrects the pinmux for accessing the TPM over the i2c line.
Thus, it allows correctly probing the module, that previously failed with i2c
errors.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/tegra124-nyan-big.dts | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boot/dts/tegra124-nyan-big.dts b/arch/arm/boot/dts/tegra124-nyan-big.dts
index f12ece9b76a6..03eedf86dc48 100644
--- a/arch/arm/boot/dts/tegra124-nyan-big.dts
+++ b/arch/arm/boot/dts/tegra124-nyan-big.dts
@@ -1103,19 +1103,19 @@
 			};
 			cam_i2c_scl_pbb1 {
 				nvidia,pins = "cam_i2c_scl_pbb1";
-				nvidia,function = "rsvd3";
-				nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
-				nvidia,tristate = <TEGRA_PIN_ENABLE>;
-				nvidia,enable-input = <TEGRA_PIN_DISABLE>;
-				nvidia,open-drain = <TEGRA_PIN_DISABLE>;
+				nvidia,function = "i2c3";
+				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+				nvidia,enable-input = <TEGRA_PIN_ENABLE>;
+				nvidia,open-drain = <TEGRA_PIN_ENABLE>;
 			};
 			cam_i2c_sda_pbb2 {
 				nvidia,pins = "cam_i2c_sda_pbb2";
-				nvidia,function = "rsvd3";
-				nvidia,pull = <TEGRA_PIN_PULL_DOWN>;
-				nvidia,tristate = <TEGRA_PIN_ENABLE>;
-				nvidia,enable-input = <TEGRA_PIN_DISABLE>;
-				nvidia,open-drain = <TEGRA_PIN_DISABLE>;
+				nvidia,function = "i2c3";
+				nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+				nvidia,tristate = <TEGRA_PIN_DISABLE>;
+				nvidia,enable-input = <TEGRA_PIN_ENABLE>;
+				nvidia,open-drain = <TEGRA_PIN_ENABLE>;
 			};
 			pbb3 {
 				nvidia,pins = "pbb3";
-- 
2.11.0

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#1566493

FromThierry Reding <thierry.reding@gmail.com>
Date2017-01-25 12:10 +0100
Message-ID<t3tCF-ZC-17@gated-at.bofh.it>
In reply to#1564444

[Multipart message — attachments visible in raw view] — view raw

On Sun, Jan 22, 2017 at 04:47:52PM +0100, Paul Kocialkowski wrote:
> This corrects the pinmux for accessing the TPM over the i2c line.
> Thus, it allows correctly probing the module, that previously failed with i2c
> errors.
> 
> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
> ---
>  arch/arm/boot/dts/tegra124-nyan-big.dts | 20 ++++++++++----------
>  1 file changed, 10 insertions(+), 10 deletions(-)

I've applied an s/i2c/I2C/ in the commit message and applied this. Can
you also make sure that these changes go into the nyan-big configuration
of the tegra-pinmux-scripts[0]? I know Stephen wants to keep those in
sync with the DTS.

Thanks,
Thierry

[0]: https://github.com/NVIDIA/tegra-pinmux-scripts

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#1566506

FromJon Hunter <jonathanh@nvidia.com>
Date2017-01-25 12:20 +0100
Message-ID<t3tMl-136-11@gated-at.bofh.it>
In reply to#1566493
On 25/01/17 11:06, Thierry Reding wrote:
> * PGP Signed by an unknown key
> 
> On Sun, Jan 22, 2017 at 04:47:52PM +0100, Paul Kocialkowski wrote:
>> This corrects the pinmux for accessing the TPM over the i2c line.
>> Thus, it allows correctly probing the module, that previously failed with i2c
>> errors.
>>
>> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
>> ---
>>  arch/arm/boot/dts/tegra124-nyan-big.dts | 20 ++++++++++----------
>>  1 file changed, 10 insertions(+), 10 deletions(-)
> 
> I've applied an s/i2c/I2C/ in the commit message and applied this. Can
> you also make sure that these changes go into the nyan-big configuration
> of the tegra-pinmux-scripts[0]? I know Stephen wants to keep those in
> sync with the DTS.
> 
> Thanks,
> Thierry
> 
> [0]: https://github.com/NVIDIA/tegra-pinmux-scripts

Looks like it has already been changed ...

https://github.com/NVIDIA/tegra-pinmux-scripts/commit/5049f75b3099515ffb7f064dcf23568c17aecb01

Jon

-- 
nvpublic

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#1566507

FromThierry Reding <thierry.reding@gmail.com>
Date2017-01-25 12:20 +0100
Message-ID<t3tMl-136-13@gated-at.bofh.it>
In reply to#1566506

[Multipart message — attachments visible in raw view] — view raw

On Wed, Jan 25, 2017 at 11:10:56AM +0000, Jon Hunter wrote:
> 
> On 25/01/17 11:06, Thierry Reding wrote:
> > * PGP Signed by an unknown key
> > 
> > On Sun, Jan 22, 2017 at 04:47:52PM +0100, Paul Kocialkowski wrote:
> >> This corrects the pinmux for accessing the TPM over the i2c line.
> >> Thus, it allows correctly probing the module, that previously failed with i2c
> >> errors.
> >>
> >> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
> >> ---
> >>  arch/arm/boot/dts/tegra124-nyan-big.dts | 20 ++++++++++----------
> >>  1 file changed, 10 insertions(+), 10 deletions(-)
> > 
> > I've applied an s/i2c/I2C/ in the commit message and applied this. Can
> > you also make sure that these changes go into the nyan-big configuration
> > of the tegra-pinmux-scripts[0]? I know Stephen wants to keep those in
> > sync with the DTS.
> > 
> > Thanks,
> > Thierry
> > 
> > [0]: https://github.com/NVIDIA/tegra-pinmux-scripts
> 
> Looks like it has already been changed ...
> 
> https://github.com/NVIDIA/tegra-pinmux-scripts/commit/5049f75b3099515ffb7f064dcf23568c17aecb01

Excellent, no need for any further action then.

Thierry

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