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From: Padmanabhan Rajanbabu <p.rajanbabu@samsung.com>
To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
alim.akhtar@samsung.com, chanho61.park@samsung.com,
linus.walleij@linaro.org, pankaj.dubey@samsung.com
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-samsung-soc@vger.kernel.org,
Padmanabhan Rajanbabu <p.rajanbabu@samsung.com>
Subject: [PATCH v3 4/4] arm64: dts: fix SPI drive strength values as per FSD
HW UM
Date: Thu, 13 Oct 2022 16:10:24 +0530
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arm64: dts: fix drive strength macros and values for FSD Platform
|
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Commit Message
Padmanabhan Rajanbabu
Oct. 13, 2022, 10:40 a.m. UTC
Drive strength values used for SPI is not reflecting the default values
recommended by FSD HW UM.
Fix the drive strength values for SPI, thereby ensuring that the existing
device tree file is using default drive strength values recommended by UM
for FSD SoC.
Fixes: 684dac402f21 ("arm64: dts: fsd: Add initial pinctrl support")
Signed-off-by: Padmanabhan Rajanbabu <p.rajanbabu@samsung.com>
---
arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Comments
>-----Original Message----- >From: Padmanabhan Rajanbabu [mailto:p.rajanbabu@samsung.com] >Sent: Thursday, October 13, 2022 4:10 PM >To: robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; >alim.akhtar@samsung.com; chanho61.park@samsung.com; >linus.walleij@linaro.org; pankaj.dubey@samsung.com >Cc: devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux- >samsung-soc@vger.kernel.org; Padmanabhan Rajanbabu ><p.rajanbabu@samsung.com> >Subject: [PATCH v3 4/4] arm64: dts: fix SPI drive strength values as per FSD >HW UM > >Drive strength values used for SPI is not reflecting the default values >recommended by FSD HW UM. > >Fix the drive strength values for SPI, thereby ensuring that the existing device >tree file is using default drive strength values recommended by UM for FSD >SoC. > >Fixes: 684dac402f21 ("arm64: dts: fsd: Add initial pinctrl support") >Signed-off-by: Padmanabhan Rajanbabu <p.rajanbabu@samsung.com> >--- Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> > arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > >diff --git a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi >b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi >index a2634e70925a..e3852c946352 100644 >--- a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi >+++ b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi >@@ -323,21 +323,21 @@ > samsung,pins = "gpb4-0", "gpb4-2", "gpb4-3"; > samsung,pin-function = <FSD_PIN_FUNC_2>; > samsung,pin-pud = <FSD_PIN_PULL_UP>; >- samsung,pin-drv = <FSD_PIN_DRV_LV1>; >+ samsung,pin-drv = <FSD_PIN_DRV_LV4>; > }; > > spi1_bus: spi1-bus-pins { > samsung,pins = "gpb4-4", "gpb4-6", "gpb4-7"; > samsung,pin-function = <FSD_PIN_FUNC_2>; > samsung,pin-pud = <FSD_PIN_PULL_UP>; >- samsung,pin-drv = <FSD_PIN_DRV_LV1>; >+ samsung,pin-drv = <FSD_PIN_DRV_LV4>; > }; > > spi2_bus: spi2-bus-pins { > samsung,pins = "gpb5-0", "gpb5-2", "gpb5-3"; > samsung,pin-function = <FSD_PIN_FUNC_2>; > samsung,pin-pud = <FSD_PIN_PULL_UP>; >- samsung,pin-drv = <FSD_PIN_DRV_LV1>; >+ samsung,pin-drv = <FSD_PIN_DRV_LV4>; > }; > }; > >-- >2.17.1
diff --git a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi index a2634e70925a..e3852c946352 100644 --- a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi +++ b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi @@ -323,21 +323,21 @@ samsung,pins = "gpb4-0", "gpb4-2", "gpb4-3"; samsung,pin-function = <FSD_PIN_FUNC_2>; samsung,pin-pud = <FSD_PIN_PULL_UP>; - samsung,pin-drv = <FSD_PIN_DRV_LV1>; + samsung,pin-drv = <FSD_PIN_DRV_LV4>; }; spi1_bus: spi1-bus-pins { samsung,pins = "gpb4-4", "gpb4-6", "gpb4-7"; samsung,pin-function = <FSD_PIN_FUNC_2>; samsung,pin-pud = <FSD_PIN_PULL_UP>; - samsung,pin-drv = <FSD_PIN_DRV_LV1>; + samsung,pin-drv = <FSD_PIN_DRV_LV4>; }; spi2_bus: spi2-bus-pins { samsung,pins = "gpb5-0", "gpb5-2", "gpb5-3"; samsung,pin-function = <FSD_PIN_FUNC_2>; samsung,pin-pud = <FSD_PIN_PULL_UP>; - samsung,pin-drv = <FSD_PIN_DRV_LV1>; + samsung,pin-drv = <FSD_PIN_DRV_LV4>; }; };