linux-kernel - [PATCH] pinctrl: pinctrl-zynq: Add warning for not to use 'io-standard'

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Message-ID: <1629265999-33358-1-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com>
Date:   Wed, 18 Aug 2021 11:23:19 +0530
From:   Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Michal Simek <michal.simek@...inx.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <git@...inx.com>, <saikrishna12468@...il.com>,
        Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
Subject: [PATCH] pinctrl: pinctrl-zynq: Add warning for not to use 'io-standard'

This patch add warning message saying 'io-standard' property is deprecated
and instead use 'power-source' property for configuring power supplies.
This gives an indication for Zynq pinctrl users to migrate to use
'power-source' property.

Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@...inx.com>
---
 drivers/pinctrl/pinctrl-zynq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-zynq.c b/drivers/pinctrl/pinctrl-zynq.c
index a96af8a..5b269b6 100644
--- a/drivers/pinctrl/pinctrl-zynq.c
+++ b/drivers/pinctrl/pinctrl-zynq.c
@@ -1028,6 +1028,8 @@ static int zynq_pinconf_cfg_get(struct pinctrl_dev *pctldev,
 		break;
 	}
 	case PIN_CONFIG_IOSTANDARD:
+		dev_warn(pctldev->dev, "io-standard is deprecated, please use power-source");
+		fallthrough;
 	case PIN_CONFIG_POWER_SOURCE:
 		arg = zynq_pinconf_iostd_get(reg);
 		break;
@@ -1079,6 +1081,8 @@ static int zynq_pinconf_cfg_set(struct pinctrl_dev *pctldev,
 
 			break;
 		case PIN_CONFIG_IOSTANDARD:
+			dev_warn(pctldev->dev, "io-standard is deprecated, please use power-source");
+			fallthrough;
 		case PIN_CONFIG_POWER_SOURCE:
 			if (arg <= zynq_iostd_min || arg >= zynq_iostd_max) {
 				dev_warn(pctldev->dev,
-- 
2.1.1