lkml.org 
[lkml]   [2022]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH v3 4/4] arm64: dts: fix SPI drive strength values as per FSD HW UM
Date


>-----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


\
 
 \ /
  Last update: 2022-10-14 03:42    [W:0.084 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site