linux-kernel - [PATCH v2] arm64: dts: fsd: fix PUD values as per FSD HW UM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230102093247.59649-1-p.rajanbabu@samsung.com>
Date:   Mon,  2 Jan 2023 15:02:47 +0530
From:   Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        alim.akhtar@...sung.com, s.prashar@...sung.com,
        pankaj.dubey@...sung.com
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
Subject: [PATCH v2] arm64: dts: fsd: fix PUD values as per FSD HW UM

PUD values used for UFS, SPI and UART are not reflecting
the default values recommended by FSD HW UM. Therefore,
changing the same to comply with HW UM recommendation.

Signed-off-by: Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
---
 arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
index 73cb388d6ac1..c99868b273b4 100644
--- a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
@@ -54,14 +54,14 @@
 	ufs_rst_n: ufs-rst-n-pins {
 		samsung,pins = "gpf5-0";
 		samsung,pin-function = <FSD_PIN_FUNC_2>;
-		samsung,pin-pud = <FSD_PIN_PULL_NONE>;
+		samsung,pin-pud = <FSD_PIN_PULL_DOWN>;
 		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
 	};
 
 	ufs_refclk_out: ufs-refclk-out-pins {
 		samsung,pins = "gpf5-1";
 		samsung,pin-function = <FSD_PIN_FUNC_2>;
-		samsung,pin-pud = <FSD_PIN_PULL_NONE>;
+		samsung,pin-pud = <FSD_PIN_PULL_UP>;
 		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
 	};
 };
@@ -308,35 +308,35 @@
 	uart0_data: uart0-data-pins {
 		samsung,pins = "gpb7-0", "gpb7-1";
 		samsung,pin-function = <FSD_PIN_FUNC_2>;
-		samsung,pin-pud = <FSD_PIN_PULL_NONE>;
+		samsung,pin-pud = <FSD_PIN_PULL_UP>;
 		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
 	};
 
 	uart1_data: uart1-data-pins {
 		samsung,pins = "gpb7-4", "gpb7-5";
 		samsung,pin-function = <FSD_PIN_FUNC_2>;
-		samsung,pin-pud = <FSD_PIN_PULL_NONE>;
+		samsung,pin-pud = <FSD_PIN_PULL_UP>;
 		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
 	};
 
 	spi0_bus: spi0-bus-pins {
 		samsung,pins = "gpb4-0", "gpb4-2", "gpb4-3";
 		samsung,pin-function = <FSD_PIN_FUNC_2>;
-		samsung,pin-pud = <FSD_PIN_PULL_UP>;
+		samsung,pin-pud = <FSD_PIN_PULL_DOWN>;
 		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-pud = <FSD_PIN_PULL_DOWN>;
 		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-pud = <FSD_PIN_PULL_DOWN>;
 		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
 	};
 
-- 
2.17.1