[PATCH v2 0/4] Config and device tree updates for the Librem 5 devkit

[PATCH v2 0/4] Config and device tree updates for the Librem 5 devkit

[Guido Günther]

This enables more components to get a working display, panel, audio and
sensors. It also updates some device tree bits to make mainline boot.

I've skipped wifi (which needs some more driver work) and devfreq (since Martin
is working on that).

The config changes don't depend on the DT parts so could be applied
independently. The series was tested against next-20201214 and i made sure the
defconfig changes also apply on top of shawnguo/imx/defconfig.

changes from v1:
- as per review comments by Krzysztof Kozlowski <krzk@kernel.org>
  https://lore.kernel.org/linux-arm-kernel/20201215091729.GC29321@kozik-lap/
  - describe hardware parts not config options
  - rework commit messages to give more details
- don't keep buck3 always on but rather make sure the board
  doesn't hang when resuming the gpu power domain.
  There's a generic fix pending for that helps all boards
  https://lore.kernel.org/lkml/beba25e85db20649aa040fc0ae549895c9265f6f.camel@fi.rohmeurope.com/

To: Rob Herring <robh+dt@kernel.org>,Shawn Guo <shawnguo@kernel.org>,Sascha Hauer <s.hauer@pengutronix.de>,Pengutronix Kernel Team <kernel@pengutronix.de>,Fabio Estevam <festevam@gmail.com>,NXP Linux Team <linux-imx@nxp.com>,Catalin Marinas <catalin.marinas@arm.com>,Will Deacon <will@kernel.org>,Martin Kepplinger <martink@posteo.de>,Angus Ainslie <angus@akkea.ca>,Krzysztof Kozlowski <krzk@kernel.org>,Bjorn Andersson <bjorn.andersson@linaro.org>,Li Yang <leoyang.li@nxp.com>,Geert Uytterhoeven <geert+renesas@glider.be>,Vinod Koul <vkoul@kernel.org>,Anson Huang <Anson.Huang@nxp.com>,Michael Walle <michael@walle.cc>,devicetree@vger.kernel.org,linux-arm-kernel@lists.infradead.org,linux-kernel@vger.kernel.org,phone-devel@vger.kernel.org

Guido Günther (4):
  arm64: defconfig: Enable Librem 5 devkit components
  arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators
  arm64: dts: imx8mq-librem5-devkit: Disable snvs_rtc
  arm64: dts: imx8mq-librem5-devkit: Drop custom clock settings

 .../dts/freescale/imx8mq-librem5-devkit.dts   | 20 ++++++++++++++-----
 arch/arm64/configs/defconfig                  |  8 ++++++++
 2 files changed, 23 insertions(+), 5 deletions(-)

-- 
2.29.2

[PATCH v2 1/4] arm64: defconfig: Enable Librem 5 devkit components

[Guido Günther]

The Librem 5 devkit is based on NXP's i.MX8MQ. Schematics are at
https://source.puri.sm/Librem5/dvk-mx8m-bsb.

This enables drivers for the following hardware components that aren't
yet enabled in defconfig:

- Goodix GT5688 touchscreen
- iMX8MQ's PWM for the LCD backlight
- TI BQ25896 charge controller
- NXP SGTL5000 audio codec
- Microcrystal RV-4162-C7 RTC
- magnetometer: CONFIG_IIO_ST_MAGN_3AXIS
- the SIMCom SIM7100E/A modem

Signed-off-by: Guido Günther <agx@sigxcpu.org>
---
 arch/arm64/configs/defconfig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 5fc7f86d62f9..9bdca86bc320 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -417,6 +417,7 @@ CONFIG_KEYBOARD_IMX_SC_KEY=m
 CONFIG_KEYBOARD_CROS_EC=y
 CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_ATMEL_MXT=m
+CONFIG_TOUCHSCREEN_GOODIX=m
 CONFIG_TOUCHSCREEN_EDT_FT5X06=m
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_PM8941_PWRKEY=y
@@ -566,6 +567,7 @@ CONFIG_BATTERY_SBS=m
 CONFIG_BATTERY_BQ27XXX=y
 CONFIG_SENSORS_ARM_SCMI=y
 CONFIG_BATTERY_MAX17042=m
+CONFIG_CHARGER_BQ25890=m
 CONFIG_CHARGER_BQ25980=m
 CONFIG_SENSORS_ARM_SCPI=y
 CONFIG_SENSORS_LM90=m
@@ -747,6 +749,7 @@ CONFIG_SND_SOC_FSL_ASRC=m
 CONFIG_SND_SOC_FSL_MICFIL=m
 CONFIG_SND_SOC_FSL_EASRC=m
 CONFIG_SND_IMX_SOC=m
+CONFIG_SND_SOC_IMX_SGTL5000=m
 CONFIG_SND_SOC_IMX_SPDIF=m
 CONFIG_SND_SOC_IMX_AUDMIX=m
 CONFIG_SND_MESON_AXG_SOUND_CARD=m
@@ -772,6 +775,7 @@ CONFIG_SND_SOC_TEGRA210_ADMAIF=m
 CONFIG_SND_SOC_AK4613=m
 CONFIG_SND_SOC_ES7134=m
 CONFIG_SND_SOC_ES7241=m
+CONFIG_SND_SOC_GTM601=m
 CONFIG_SND_SOC_PCM3168A_I2C=m
 CONFIG_SND_SOC_SIMPLE_AMPLIFIER=m
 CONFIG_SND_SOC_TAS571X=m
@@ -807,6 +811,7 @@ CONFIG_USB_ISP1760=y
 CONFIG_USB_SERIAL=m
 CONFIG_USB_SERIAL_CP210X=m
 CONFIG_USB_SERIAL_FTDI_SIO=m
+CONFIG_USB_SERIAL_OPTION=m
 CONFIG_USB_HSIC_USB3503=y
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_USB_GADGET=y
@@ -876,6 +881,7 @@ CONFIG_RTC_DRV_HYM8563=m
 CONFIG_RTC_DRV_MAX77686=y
 CONFIG_RTC_DRV_RK808=m
 CONFIG_RTC_DRV_PCF85363=m
+CONFIG_RTC_DRV_M41T80=m
 CONFIG_RTC_DRV_RX8581=m
 CONFIG_RTC_DRV_RV8803=m
 CONFIG_RTC_DRV_S5M=y
@@ -1040,11 +1046,13 @@ CONFIG_IIO_ST_LSM6DSX=m
 CONFIG_IIO_CROS_EC_LIGHT_PROX=m
 CONFIG_SENSORS_ISL29018=m
 CONFIG_VCNL4000=m
+CONFIG_IIO_ST_MAGN_3AXIS=m
 CONFIG_IIO_CROS_EC_BARO=m
 CONFIG_MPL3115=m
 CONFIG_PWM=y
 CONFIG_PWM_BCM2835=m
 CONFIG_PWM_CROS_EC=m
+CONFIG_PWM_IMX27=m
 CONFIG_PWM_MESON=m
 CONFIG_PWM_RCAR=m
 CONFIG_PWM_ROCKCHIP=y
-- 
2.29.2

[PATCH v2 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators

[Guido Günther]

BUCK3 needs a regulator-enable-ramp-delay since otherwise the board
freezes on etnaviv probe. With this pgc_gpu suspends and resumes as
expected. This must have been always broken since gpcv2 support was
enabled.

We also enable all the regulators needed for Deep Sleep Mode (DSM) as
always-on:

- VDD_SOC supplied by BUCK1
- VDDA_1P8 supplied by BUCK7
- VDDA_0P9 supplied by LDO4
- VDDA_DRAM supplied by LDO3
- NVCC_DRAM supplied by BUCK8
- VDD_DRAM supplied by BUCK5

Finally LDO5 and LDO6 provide VDD_PHY_1V8 and VDD_PHY_0V9 used by the
SOCs MIPI, HDMI and USB IP cores. While we would in theory be able to
turn these off (and I've tested that or LDO6 and mipi with USB disabled)
it is of little practical use atm since USB doesn't runtime suspend so
let's revisit this at a later point.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
---
 .../boot/dts/freescale/imx8mq-librem5-devkit.dts      | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index af139b283daf..f35d6897fbf7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -298,6 +298,7 @@ buck1_reg: BUCK1 {
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1300000>;
 				regulator-boot-on;
+				regulator-always-on;
 				regulator-ramp-delay = <1250>;
 				rohm,dvs-run-voltage = <900000>;
 				rohm,dvs-idle-voltage = <850000>;
@@ -319,6 +320,7 @@ buck3_reg: BUCK3 {
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1300000>;
 				regulator-boot-on;
+				regulator-enable-ramp-delay = <200>;
 				rohm,dvs-run-voltage = <900000>;
 			};
 
@@ -334,6 +336,7 @@ buck5_reg: BUCK5 {
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1350000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			buck6_reg: BUCK6 {
@@ -341,6 +344,7 @@ buck6_reg: BUCK6 {
 				regulator-min-microvolt = <3000000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			buck7_reg: BUCK7 {
@@ -348,6 +352,7 @@ buck7_reg: BUCK7 {
 				regulator-min-microvolt = <1605000>;
 				regulator-max-microvolt = <1995000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			buck8_reg: BUCK8 {
@@ -355,6 +360,7 @@ buck8_reg: BUCK8 {
 				regulator-min-microvolt = <800000>;
 				regulator-max-microvolt = <1400000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			ldo1_reg: LDO1 {
@@ -380,6 +386,7 @@ ldo3_reg: LDO3 {
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			ldo4_reg: LDO4 {
@@ -387,12 +394,14 @@ ldo4_reg: LDO4 {
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			ldo5_reg: LDO5 {
 				regulator-name = "ldo5";
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
 			};
 
 			ldo6_reg: LDO6 {
@@ -400,6 +409,7 @@ ldo6_reg: LDO6 {
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 
 			ldo7_reg: LDO7 {
@@ -407,6 +417,7 @@ ldo7_reg: LDO7 {
 				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-boot-on;
+				regulator-always-on;
 			};
 		};
 	};
-- 
2.29.2

[PATCH v2 3/4] arm64: dts: imx8mq-librem5-devkit: Disable snvs_rtc

[Guido Günther]

The board has it's own RTC chip which is backed by the (optional)
battery and hence preserves data/time on poweroff when that is inserted.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index f35d6897fbf7..05a43ee6d051 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -897,6 +897,10 @@ &snvs_pwrkey {
 	status = "okay";
 };
 
+&snvs_rtc {
+	status = "disabled";
+};
+
 &sai2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sai2>;
-- 
2.29.2

[PATCH v2 4/4] arm64: dts: imx8mq-librem5-devkit: Drop custom clock settings

[Guido Günther]

Otherwise the boot hangs early on and the resulting clock tree without
this already closely matches the selected rates (722534400 and
786432000).

  audio_pll2                  0        0        0   722534397          0     0  50000
     audio_pll2_bypass        0        0        0   722534397          0     0  50000
        audio_pll2_out        0        0        0   722534397          0     0  50000
  audio_pll1                  1        1        0   786431998          0     0  50000
     audio_pll1_bypass        1        1        0   786431998          0     0  50000
        audio_pll1_out        1        1        0   786431998          0     0  50000
           sai2               1        1        0    24576000          0     0  50000
              sai2_root_clk       1        1        0    24576000          0     0  50000
           sai6               0        0        0    24576000          0     0  50000
              sai6_root_clk       0        0        0    24576000          0     0  50000

Signed-off-by: Guido Günther <agx@sigxcpu.org>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index 05a43ee6d051..dd217a0760e9 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -244,11 +244,6 @@ &A53_3 {
 	cpu-supply = <&buck2_reg>;
 };
 
-&clk {
-	assigned-clocks = <&clk IMX8MQ_AUDIO_PLL1>, <&clk IMX8MQ_AUDIO_PLL2>;
-	assigned-clock-rates = <786432000>, <722534400>;
-};
-
 &dphy {
 	status = "okay";
 };
-- 
2.29.2

Re: [PATCH v2 1/4] arm64: defconfig: Enable Librem 5 devkit components

[Krzysztof Kozlowski]

On Thu, Dec 17, 2020 at 04:13:12PM +0100, Guido Günther wrote:
> The Librem 5 devkit is based on NXP's i.MX8MQ. Schematics are at
> https://source.puri.sm/Librem5/dvk-mx8m-bsb.
> 
> This enables drivers for the following hardware components that aren't
> yet enabled in defconfig:
> 
> - Goodix GT5688 touchscreen
> - iMX8MQ's PWM for the LCD backlight
> - TI BQ25896 charge controller
> - NXP SGTL5000 audio codec
> - Microcrystal RV-4162-C7 RTC
> - magnetometer: CONFIG_IIO_ST_MAGN_3AXIS
> - the SIMCom SIM7100E/A modem
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
>  arch/arm64/configs/defconfig | 8 ++++++++
>  1 file changed, 8 insertions(+)

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Re: [PATCH v2 4/4] arm64: dts: imx8mq-librem5-devkit: Drop custom clock settings

[Krzysztof Kozlowski]

On Thu, Dec 17, 2020 at 04:13:15PM +0100, Guido Günther wrote:
> Otherwise the boot hangs early on and the resulting clock tree without
> this already closely matches the selected rates (722534400 and
> 786432000).
> 
>   audio_pll2                  0        0        0   722534397          0     0  50000
>      audio_pll2_bypass        0        0        0   722534397          0     0  50000
>         audio_pll2_out        0        0        0   722534397          0     0  50000
>   audio_pll1                  1        1        0   786431998          0     0  50000
>      audio_pll1_bypass        1        1        0   786431998          0     0  50000
>         audio_pll1_out        1        1        0   786431998          0     0  50000
>            sai2               1        1        0    24576000          0     0  50000
>               sai2_root_clk       1        1        0    24576000          0     0  50000
>            sai6               0        0        0    24576000          0     0  50000
>               sai6_root_clk       0        0        0    24576000          0     0  50000
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
>  arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 5 -----
>  1 file changed, 5 deletions(-)
> 

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Re: [PATCH v2 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators

[Krzysztof Kozlowski]

On Thu, Dec 17, 2020 at 04:13:13PM +0100, Guido Günther wrote:
> BUCK3 needs a regulator-enable-ramp-delay since otherwise the board
> freezes on etnaviv probe. With this pgc_gpu suspends and resumes as
> expected. This must have been always broken since gpcv2 support was
> enabled.
> 
> We also enable all the regulators needed for Deep Sleep Mode (DSM) as
> always-on:
> 
> - VDD_SOC supplied by BUCK1
> - VDDA_1P8 supplied by BUCK7
> - VDDA_0P9 supplied by LDO4
> - VDDA_DRAM supplied by LDO3
> - NVCC_DRAM supplied by BUCK8
> - VDD_DRAM supplied by BUCK5
> 
> Finally LDO5 and LDO6 provide VDD_PHY_1V8 and VDD_PHY_0V9 used by the
> SOCs MIPI, HDMI and USB IP cores. While we would in theory be able to
> turn these off (and I've tested that or LDO6 and mipi with USB disabled)
> it is of little practical use atm since USB doesn't runtime suspend so
> let's revisit this at a later point.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
>  .../boot/dts/freescale/imx8mq-librem5-devkit.dts      | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Re: [PATCH v2 3/4] arm64: dts: imx8mq-librem5-devkit: Disable snvs_rtc

[Krzysztof Kozlowski]

On Thu, Dec 17, 2020 at 04:13:14PM +0100, Guido Günther wrote:
> The board has it's own RTC chip which is backed by the (optional)
> battery and hence preserves data/time on poweroff when that is inserted.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
>  arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Re: [PATCH v2 2/4] arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators

[Shawn Guo]

On Thu, Dec 17, 2020 at 04:13:13PM +0100, Guido Günther wrote:
> BUCK3 needs a regulator-enable-ramp-delay since otherwise the board
> freezes on etnaviv probe. With this pgc_gpu suspends and resumes as
> expected. This must have been always broken since gpcv2 support was
> enabled.
> 
> We also enable all the regulators needed for Deep Sleep Mode (DSM) as
> always-on:
> 
> - VDD_SOC supplied by BUCK1
> - VDDA_1P8 supplied by BUCK7
> - VDDA_0P9 supplied by LDO4
> - VDDA_DRAM supplied by LDO3
> - NVCC_DRAM supplied by BUCK8
> - VDD_DRAM supplied by BUCK5
> 
> Finally LDO5 and LDO6 provide VDD_PHY_1V8 and VDD_PHY_0V9 used by the
> SOCs MIPI, HDMI and USB IP cores. While we would in theory be able to
> turn these off (and I've tested that or LDO6 and mipi with USB disabled)
> it is of little practical use atm since USB doesn't runtime suspend so
> let's revisit this at a later point.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>

Applied, thanks.

Re: [PATCH v2 3/4] arm64: dts: imx8mq-librem5-devkit: Disable snvs_rtc

[Shawn Guo]

On Thu, Dec 17, 2020 at 04:13:14PM +0100, Guido Günther wrote:
> The board has it's own RTC chip which is backed by the (optional)
> battery and hence preserves data/time on poweroff when that is inserted.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>

Applied, thanks.

Re: [PATCH v2 4/4] arm64: dts: imx8mq-librem5-devkit: Drop custom clock settings

[Shawn Guo]

On Thu, Dec 17, 2020 at 04:13:15PM +0100, Guido Günther wrote:
> Otherwise the boot hangs early on and the resulting clock tree without
> this already closely matches the selected rates (722534400 and
> 786432000).
> 
>   audio_pll2                  0        0        0   722534397          0     0  50000
>      audio_pll2_bypass        0        0        0   722534397          0     0  50000
>         audio_pll2_out        0        0        0   722534397          0     0  50000
>   audio_pll1                  1        1        0   786431998          0     0  50000
>      audio_pll1_bypass        1        1        0   786431998          0     0  50000
>         audio_pll1_out        1        1        0   786431998          0     0  50000
>            sai2               1        1        0    24576000          0     0  50000
>               sai2_root_clk       1        1        0    24576000          0     0  50000
>            sai6               0        0        0    24576000          0     0  50000
>               sai6_root_clk       0        0        0    24576000          0     0  50000
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>

Applied, thanks.

Re: [PATCH v2 0/4] Config and device tree updates for the Librem 5 devkit

[Shawn Guo]

On Thu, Dec 17, 2020 at 04:13:11PM +0100, Guido Günther wrote:
> This enables more components to get a working display, panel, audio and
> sensors. It also updates some device tree bits to make mainline boot.
> 
> I've skipped wifi (which needs some more driver work) and devfreq (since Martin
> is working on that).
> 
> The config changes don't depend on the DT parts so could be applied
> independently. The series was tested against next-20201214 and i made sure the
> defconfig changes also apply on top of shawnguo/imx/defconfig.

Sorry.  It doesn't apply any more.

Shawn

Re: [PATCH v2 0/4] Config and device tree updates for the Librem 5 devkit

[Guido Günther]

Hi Shawn,
On Sun, Jan 10, 2021 at 08:26:18PM +0800, Shawn Guo wrote:
> On Thu, Dec 17, 2020 at 04:13:11PM +0100, Guido Günther wrote:
> > This enables more components to get a working display, panel, audio and
> > sensors. It also updates some device tree bits to make mainline boot.
> > 
> > I've skipped wifi (which needs some more driver work) and devfreq (since Martin
> > is working on that).
> > 
> > The config changes don't depend on the DT parts so could be applied
> > independently. The series was tested against next-20201214 and i made sure the
> > defconfig changes also apply on top of shawnguo/imx/defconfig.
> 
> Sorry.  It doesn't apply any more.

v3 of this patch

    https://lore.kernel.org/linux-arm-kernel/5636a3d6e3217475e2a479248250d5c0e0a50e26.1610110514.git.agx@sigxcpu.org/)

applies for me on top of

    https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/log/?h=imx/defconfig

(which is at 773fcbcdf9d66b4aec964238b613e93804cba24c) - am i looking at
the wrong tree?

Cheers and sorry for any inconvenience,
 -- Guido


> 
> Shawn
>