linux-kernel - [PATCH v2 2/2] pinctrl: renesas: rzg2l: Move pinconf_to_config

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Message-Id: <20240829194841.84398-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Thu, 29 Aug 2024 20:48:40 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Linus Walleij <linus.walleij@...aro.org>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2 2/2] pinctrl: renesas: rzg2l: Move pinconf_to_config_argument() call outside of switch cases

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Refactor the `rzg2l_pinctrl_pinconf_set()` function by moving the call to
`arg = pinconf_to_config_argument(_configs[i])` to the beginning of the
loop. Previously, this call was redundantly made in most cases within the
switch statement.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
v1->v2
- Updated commit description
- Replaced `pinconf_to_config_argument(_configs[i])` with arg in
  PIN_CONFIG_POWER_SOURCE and PIN_CONFIG_DRIVE_STRENGTH_UA switch
  cases
---
 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 8fc1f28d02d1..cf0dadc18202 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -1384,9 +1384,9 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 
 	for (i = 0; i < num_configs; i++) {
 		param = pinconf_to_config_param(_configs[i]);
+		arg = pinconf_to_config_argument(_configs[i]);
 		switch (param) {
 		case PIN_CONFIG_INPUT_ENABLE:
-			arg = pinconf_to_config_argument(_configs[i]);
 
 			if (!(cfg & PIN_CFG_IEN))
 				return -EINVAL;
@@ -1395,7 +1395,6 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			break;
 
 		case PIN_CONFIG_OUTPUT_ENABLE:
-			arg = pinconf_to_config_argument(_configs[i]);
 			if (!(cfg & PIN_CFG_OEN))
 				return -EINVAL;
 			if (!pctrl->data->oen_write)
@@ -1406,12 +1405,10 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			break;
 
 		case PIN_CONFIG_POWER_SOURCE:
-			settings.power_source = pinconf_to_config_argument(_configs[i]);
+			settings.power_source = arg;
 			break;
 
 		case PIN_CONFIG_SLEW_RATE:
-			arg = pinconf_to_config_argument(_configs[i]);
-
 			if (!(cfg & PIN_CFG_SR) || arg > 1)
 				return -EINVAL;
 
@@ -1432,8 +1429,6 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			break;
 
 		case PIN_CONFIG_DRIVE_STRENGTH:
-			arg = pinconf_to_config_argument(_configs[i]);
-
 			if (!(cfg & PIN_CFG_IOLH_A) || hwcfg->drive_strength_ua)
 				return -EINVAL;
 
@@ -1453,12 +1448,10 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			    !hwcfg->drive_strength_ua)
 				return -EINVAL;
 
-			settings.drive_strength_ua = pinconf_to_config_argument(_configs[i]);
+			settings.drive_strength_ua = arg;
 			break;
 
 		case PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS:
-			arg = pinconf_to_config_argument(_configs[i]);
-
 			if (!(cfg & PIN_CFG_IOLH_B) || !hwcfg->iolh_groupb_oi[0])
 				return -EINVAL;
 
@@ -1476,7 +1469,6 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			if (!(cfg & PIN_CFG_IOLH_RZV2H))
 				return -EINVAL;
 
-			arg = pinconf_to_config_argument(_configs[i]);
 			if (arg > 3)
 				return -EINVAL;
 			rzg2l_rmw_pin_config(pctrl, IOLH(off), bit, IOLH_MASK, arg);
-- 
2.34.1