korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2025-01-21 05:14:52 +08:00
Code Issues Packages Projects Releases Wiki Activity

Revert "pinctrl: pinctrl-zynqmp: Add support for output-enable and bias-high-impedance"

Browse Source 
This reverts commit ad2bea79ef.

On systems with older PMUFW (Xilinx ZynqMP Platform Management Firmware)
using these pinctrl properties can cause system hang because there is
missing feature autodetection.
When this feature is implemented in the PMUFW, support for these two
properties should bring back.

Cc: stable@vger.kernel.org
Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20221017130303.21746-2-sai.krishna.potthuri@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Sai Krishna Potthuri 2022-10-17 18:33:02 +05:30 committed by Linus Walleij
parent d21f4b7ffc
commit 9989bc33c4
1 changed files with 0 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/pinctrl/pinctrl-zynqmp.c
View File

@ -412,10 +412,6 @@ static int zynqmp_pinconf_cfg_set(struct pinctrl_dev *pctldev,
break;
case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
param = PM_PINCTRL_CONFIG_TRI_STATE;
arg = PM_PINCTRL_TRI_STATE_ENABLE;
ret = zynqmp_pm_pinctrl_set_config(pin, param, arg);
break;
case PIN_CONFIG_MODE_LOW_POWER:
/*
* These cases are mentioned in dts but configurable
@ -424,11 +420,6 @@ static int zynqmp_pinconf_cfg_set(struct pinctrl_dev *pctldev,
*/
ret = 0;
break;
case PIN_CONFIG_OUTPUT_ENABLE:
param = PM_PINCTRL_CONFIG_TRI_STATE;
arg = PM_PINCTRL_TRI_STATE_DISABLE;
ret = zynqmp_pm_pinctrl_set_config(pin, param, arg);
break;
default:
dev_warn(pctldev->dev,
"unsupported configuration parameter '%u'\n",