[RFC v1 4/4] pinctrl: spacemit: move over to generic pinmux dt_node_to_map implementation

[Conor Dooley <conor@kernel.org>]

From: Conor Dooley <conor.dooley@microchip.com>

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 drivers/pinctrl/spacemit/pinctrl-k1.c | 33 ++++++++++-----------------
 1 file changed, 12 insertions(+), 21 deletions(-)

diff --git a/drivers/pinctrl/spacemit/pinctrl-k1.c b/drivers/pinctrl/spacemit/pinctrl-k1.c
index 41d8a34bc386b..c90b6ccfce2ea 100644
--- a/drivers/pinctrl/spacemit/pinctrl-k1.c
+++ b/drivers/pinctrl/spacemit/pinctrl-k1.c
@@ -114,11 +114,6 @@ struct spacemit_pinctrl_data {
 	const struct spacemit_pinctrl_dconf	*dconf;
 };
 
-struct spacemit_pin_mux_config {
-	const struct spacemit_pin	*pin;
-	u32				config;
-};
-
 /* map pin id to pinctrl register offset, refer MFPR definition */
 static unsigned int spacemit_k1_pin_to_offset(unsigned int pin)
 {
@@ -474,7 +469,6 @@ static int spacemit_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
 	ngroups = 0;
 	guard(mutex)(&pctrl->mutex);
 	for_each_available_child_of_node_scoped(np, child) {
-		struct spacemit_pin_mux_config *pinmuxs;
 		unsigned int config, *pins;
 		int i, npins;
 
@@ -497,10 +491,6 @@ static int spacemit_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
 		if (!pins)
 			return -ENOMEM;
 
-		pinmuxs = devm_kcalloc(dev, npins, sizeof(*pinmuxs), GFP_KERNEL);
-		if (!pinmuxs)
-			return -ENOMEM;
-
 		for (i = 0; i < npins; i++) {
 			ret = of_property_read_u32_index(child, "pinmux",
 							 i, &config);
@@ -509,11 +499,6 @@ static int spacemit_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
 				return -EINVAL;
 
 			pins[i] = spacemit_dt_get_pin(config);
-			pinmuxs[i].config = config;
-			pinmuxs[i].pin = spacemit_get_pin(pctrl, pins[i]);
-
-			if (!pinmuxs[i].pin)
-				return dev_err_probe(dev, -ENODEV, "failed to get pin %d\n", pins[i]);
 		}
 
 		map[nmaps].type = PIN_MAP_TYPE_MUX_GROUP;
@@ -522,7 +507,7 @@ static int spacemit_pctrl_dt_node_to_map(struct pinctrl_dev *pctldev,
 		nmaps += 1;
 
 		ret = pinctrl_generic_add_group(pctldev, grpname,
-						pins, npins, pinmuxs);
+						pins, npins, &config);
 		if (ret < 0)
 			return dev_err_probe(dev, ret, "failed to add group %s: %d\n", grpname, ret);
 
@@ -559,7 +544,7 @@ static const struct pinctrl_ops spacemit_pctrl_ops = {
 	.get_group_name		= pinctrl_generic_get_group_name,
 	.get_group_pins		= pinctrl_generic_get_group_pins,
 	.pin_dbg_show		= spacemit_pctrl_dbg_show,
-	.dt_node_to_map		= spacemit_pctrl_dt_node_to_map,
+	.dt_node_to_map		= pinctrl_generic_pinmux_dt_node_to_map,
 	.dt_free_map		= pinctrl_utils_free_map,
 };
 
@@ -568,8 +553,8 @@ static int spacemit_pmx_set_mux(struct pinctrl_dev *pctldev,
 {
 	struct spacemit_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
 	const struct group_desc *group;
-	const struct spacemit_pin_mux_config *configs;
 	unsigned int i, mux;
+	unsigned int *configs;
 	void __iomem *reg;
 
 	group = pinctrl_generic_get_group(pctldev, gsel);
@@ -579,11 +564,17 @@ static int spacemit_pmx_set_mux(struct pinctrl_dev *pctldev,
 	configs = group->data;
 
 	for (i = 0; i < group->grp.npins; i++) {
-		const struct spacemit_pin *spin = configs[i].pin;
-		u32 value = configs[i].config;
+		const struct spacemit_pin *spin;
+		u32 value = configs[i];
+
+		spin = spacemit_get_pin(pctrl, group->grp.pins[i]);
+		if (!spin) {
+			dev_err(pctrl->dev, "Invalid pin %u\n", group->grp.pins[i]);
+			return -EINVAL;
+		}
 
 		reg = spacemit_pin_to_reg(pctrl, spin->pin);
-		mux = spacemit_dt_get_pin_mux(value);
+		mux = value;
 
 		guard(raw_spinlock_irqsave)(&pctrl->lock);
 		value = readl_relaxed(reg) & ~PAD_MUX;
-- 
2.53.0