Merge tag 'pinctrl-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Aere is a hopefully final round of pin control fixes. Nothing special,
  driver fixes and we caught a potential NULL pointer exception.

   - Fix a potential NULL dereference in the core!

   - Fix all pin mux routes in the Rockchop PX30 driver

   - Fix the UFS pins in the Qualcomm SC8280XP driver

   - Fix bias disabling in the Mediatek driver

   - Fix debounce time settings in the Mediatek driver"

* tag 'pinctrl-v6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: mediatek: Export debounce time tables
  pinctrl: mediatek: Fix EINT pins input debounce time configuration
  pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map
  pinctrl: mediatek: common-v2: Fix bias-disable for PULL_PU_PD_RSEL_TYPE
  pinctrl: qcom: sc8280xp: Rectify UFS reset pins
  pinctrl: rockchip: list all pins in a possible mux route for PX30

Author: torvalds

drivers/pinctrl/devicetree.c

@@ -220,6 +220,8 @@ int pinctrl_dt_to_map(struct pinctrl *p, struct pinctrl_dev *pctldev)
 	for (state = 0; ; state++) {
 		/* Retrieve the pinctrl-* property */
 		propname = kasprintf(GFP_KERNEL, "pinctrl-%d", state);
+		if (!propname)
+			return -ENOMEM;
 		prop = of_find_property(np, propname, &size);
 		kfree(propname);
 		if (!prop) {

drivers/pinctrl/mediatek/mtk-eint.c

@@ -24,6 +24,7 @@
 #define MTK_EINT_EDGE_SENSITIVE           0
 #define MTK_EINT_LEVEL_SENSITIVE          1
 #define MTK_EINT_DBNC_SET_DBNC_BITS	  4
+#define MTK_EINT_DBNC_MAX		  16
 #define MTK_EINT_DBNC_RST_BIT		  (0x1 << 1)
 #define MTK_EINT_DBNC_SET_EN		  (0x1 << 0)
 
@@ -48,6 +49,21 @@ static const struct mtk_eint_regs mtk_generic_eint_regs = {
 	.dbnc_clr  = 0x700,
 };
 
+const unsigned int debounce_time_mt2701[] = {
+	500, 1000, 16000, 32000, 64000, 128000, 256000, 0
+};
+EXPORT_SYMBOL_GPL(debounce_time_mt2701);
+
+const unsigned int debounce_time_mt6765[] = {
+	125, 250, 500, 1000, 16000, 32000, 64000, 128000, 256000, 512000, 0
+};
+EXPORT_SYMBOL_GPL(debounce_time_mt6765);
+
+const unsigned int debounce_time_mt6795[] = {
+	500, 1000, 16000, 32000, 64000, 128000, 256000, 512000, 0
+};
+EXPORT_SYMBOL_GPL(debounce_time_mt6795);
+
 static void __iomem *mtk_eint_get_offset(struct mtk_eint *eint,
 					 unsigned int eint_num,
 					 unsigned int offset)
@@ -404,10 +420,11 @@ int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_num,
 	int virq, eint_offset;
 	unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask,
 		     dbnc;
-	static const unsigned int debounce_time[] = {500, 1000, 16000, 32000,
-						     64000, 128000, 256000};
 	struct irq_data *d;
 
+	if (!eint->hw->db_time)
+		return -EOPNOTSUPP;
+
 	virq = irq_find_mapping(eint->domain, eint_num);
 	eint_offset = (eint_num % 4) * 8;
 	d = irq_get_irq_data(virq);
@@ -418,9 +435,9 @@ int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_num,
 	if (!mtk_eint_can_en_debounce(eint, eint_num))
 		return -EINVAL;
 
-	dbnc = ARRAY_SIZE(debounce_time);
-	for (i = 0; i < ARRAY_SIZE(debounce_time); i++) {
-		if (debounce <= debounce_time[i]) {
+	dbnc = eint->num_db_time;
+	for (i = 0; i < eint->num_db_time; i++) {
+		if (debounce <= eint->hw->db_time[i]) {
 			dbnc = i;
 			break;
 		}
@@ -494,6 +511,13 @@ int mtk_eint_do_init(struct mtk_eint *eint)
 	if (!eint->domain)
 		return -ENOMEM;
 
+	if (eint->hw->db_time) {
+		for (i = 0; i < MTK_EINT_DBNC_MAX; i++)
+			if (eint->hw->db_time[i] == 0)
+				break;
+		eint->num_db_time = i;
+	}
+
 	mtk_eint_hw_init(eint);
 	for (i = 0; i < eint->hw->ap_num; i++) {
 		int virq = irq_create_mapping(eint->domain, i);

drivers/pinctrl/mediatek/mtk-eint.h

@@ -37,8 +37,13 @@ struct mtk_eint_hw {
 	u8		ports;
 	unsigned int	ap_num;
 	unsigned int	db_cnt;
+	const unsigned int *db_time;
 };
 
+extern const unsigned int debounce_time_mt2701[];
+extern const unsigned int debounce_time_mt6765[];
+extern const unsigned int debounce_time_mt6795[];
+
 struct mtk_eint;
 
 struct mtk_eint_xt {
@@ -62,6 +67,7 @@ struct mtk_eint {
 	/* Used to fit into various EINT device */
 	const struct mtk_eint_hw *hw;
 	const struct mtk_eint_regs *regs;
+	u16 num_db_time;
 
 	/* Used to fit into various pinctrl device */
 	void *pctl;

drivers/pinctrl/mediatek/pinctrl-mt2701.c

@@ -518,6 +518,7 @@ static const struct mtk_pinctrl_devdata mt2701_pinctrl_data = {
 		.ports     = 6,
 		.ap_num    = 169,
 		.db_cnt    = 16,
+		.db_time   = debounce_time_mt2701,
 	},
 };
 

drivers/pinctrl/mediatek/pinctrl-mt2712.c

@@ -567,6 +567,7 @@ static const struct mtk_pinctrl_devdata mt2712_pinctrl_data = {
 		.ports     = 8,
 		.ap_num    = 229,
 		.db_cnt    = 40,
+		.db_time   = debounce_time_mt2701,
 	},
 };
 

drivers/pinctrl/mediatek/pinctrl-mt6765.c

@@ -1062,6 +1062,7 @@ static const struct mtk_eint_hw mt6765_eint_hw = {
 	.ports     = 6,
 	.ap_num    = 160,
 	.db_cnt    = 13,
+	.db_time   = debounce_time_mt6765,
 };
 
 static const struct mtk_pin_soc mt6765_data = {

drivers/pinctrl/mediatek/pinctrl-mt6779.c

@@ -737,6 +737,7 @@ static const struct mtk_eint_hw mt6779_eint_hw = {
 	.ports     = 6,
 	.ap_num    = 195,
 	.db_cnt    = 13,
+	.db_time   = debounce_time_mt2701,
 };
 
 static const struct mtk_pin_soc mt6779_data = {

drivers/pinctrl/mediatek/pinctrl-mt6795.c

@@ -475,6 +475,7 @@ static const struct mtk_eint_hw mt6795_eint_hw = {
 	.ports     = 7,
 	.ap_num    = 224,
 	.db_cnt    = 32,
+	.db_time   = debounce_time_mt6795,
 };
 
 static const unsigned int mt6795_pull_type[] = {

drivers/pinctrl/mediatek/pinctrl-mt7622.c

@@ -846,6 +846,7 @@ static const struct mtk_eint_hw mt7622_eint_hw = {
 	.ports     = 7,
 	.ap_num    = ARRAY_SIZE(mt7622_pins),
 	.db_cnt    = 20,
+	.db_time   = debounce_time_mt6765,
 };
 
 static const struct mtk_pin_soc mt7622_data = {

drivers/pinctrl/mediatek/pinctrl-mt7623.c

@@ -1369,6 +1369,7 @@ static const struct mtk_eint_hw mt7623_eint_hw = {
 	.ports     = 6,
 	.ap_num    = 169,
 	.db_cnt    = 20,
+	.db_time   = debounce_time_mt2701,
 };
 
 static struct mtk_pin_soc mt7623_data = {