bcm63xx: 5.15: comment unused macronix_nand_block_protection_support

Comment unused macronix_nand_block_protection_support due to workaround
needed to fix booting
Fix compilation warning:
drivers/mtd/nand/raw/nand_macronix.c:220:13: error: 'macronix_nand_block_protection_support' defined but not used [-Werror=unused-function]
  220 | static void macronix_nand_block_protection_support(struct nand_chip *chip)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <[email protected]>

target/linux/bcm63xx/patches-5.15/111-drivers-mtd-nand-macronix-comment-unused-function.patch

@@ -0,0 +1,154 @@
+From 00cf359b486a3d14c29014e9d57d92ab81972866 Mon Sep 17 00:00:00 2001
+From: Christian Marangi <[email protected]>
+Date: Tue, 9 May 2023 14:03:08 +0200
+Subject: [PATCH] drivers: mtd: nand: macronix: comment unused function
+
+Comment unused function since macronix_nand_block_protection_support
+cause booting problems.
+
+Signed-off-by: Christian Marangi <[email protected]>
+---
+ drivers/mtd/nand/raw/nand_macronix.c | 132 +++++++++++++--------------
+ 1 file changed, 66 insertions(+), 66 deletions(-)
+
+--- a/drivers/mtd/nand/raw/nand_macronix.c
++++ b/drivers/mtd/nand/raw/nand_macronix.c
+@@ -179,72 +179,72 @@ static void macronix_nand_fix_broken_get
+ 		     ONFI_FEATURE_ADDR_TIMING_MODE, 1);
+ }
+ 
+-/*
+- * Macronix NAND supports Block Protection by Protectoin(PT) pin;
+- * active high at power-on which protects the entire chip even the #WP is
+- * disabled. Lock/unlock protection area can be partition according to
+- * protection bits, i.e. upper 1/2 locked, upper 1/4 locked and so on.
+- */
+-static int mxic_nand_lock(struct nand_chip *chip, loff_t ofs, uint64_t len)
+-{
+-	u8 feature[ONFI_SUBFEATURE_PARAM_LEN];
+-	int ret;
+-
+-	feature[0] = MXIC_BLOCK_PROTECTION_ALL_LOCK;
+-	nand_select_target(chip, 0);
+-	ret = nand_set_features(chip, ONFI_FEATURE_ADDR_MXIC_PROTECTION,
+-				feature);
+-	nand_deselect_target(chip);
+-	if (ret)
+-		pr_err("%s all blocks failed\n", __func__);
+-
+-	return ret;
+-}
+-
+-static int mxic_nand_unlock(struct nand_chip *chip, loff_t ofs, uint64_t len)
+-{
+-	u8 feature[ONFI_SUBFEATURE_PARAM_LEN];
+-	int ret;
+-
+-	feature[0] = MXIC_BLOCK_PROTECTION_ALL_UNLOCK;
+-	nand_select_target(chip, 0);
+-	ret = nand_set_features(chip, ONFI_FEATURE_ADDR_MXIC_PROTECTION,
+-				feature);
+-	nand_deselect_target(chip);
+-	if (ret)
+-		pr_err("%s all blocks failed\n", __func__);
+-
+-	return ret;
+-}
+-
+-static void macronix_nand_block_protection_support(struct nand_chip *chip)
+-{
+-	u8 feature[ONFI_SUBFEATURE_PARAM_LEN];
+-	int ret;
+-
+-	bitmap_set(chip->parameters.get_feature_list,
+-		   ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1);
+-
+-	feature[0] = MXIC_BLOCK_PROTECTION_ALL_UNLOCK;
+-	nand_select_target(chip, 0);
+-	ret = nand_get_features(chip, ONFI_FEATURE_ADDR_MXIC_PROTECTION,
+-				feature);
+-	nand_deselect_target(chip);
+-	if (ret || feature[0] != MXIC_BLOCK_PROTECTION_ALL_LOCK) {
+-		if (ret)
+-			pr_err("Block protection check failed\n");
+-
+-		bitmap_clear(chip->parameters.get_feature_list,
+-			     ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1);
+-		return;
+-	}
+-
+-	bitmap_set(chip->parameters.set_feature_list,
+-		   ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1);
+-
+-	chip->ops.lock_area = mxic_nand_lock;
+-	chip->ops.unlock_area = mxic_nand_unlock;
+-}
++// /*
++//  * Macronix NAND supports Block Protection by Protectoin(PT) pin;
++//  * active high at power-on which protects the entire chip even the #WP is
++//  * disabled. Lock/unlock protection area can be partition according to
++//  * protection bits, i.e. upper 1/2 locked, upper 1/4 locked and so on.
++//  */
++// static int mxic_nand_lock(struct nand_chip *chip, loff_t ofs, uint64_t len)
++// {
++// 	u8 feature[ONFI_SUBFEATURE_PARAM_LEN];
++// 	int ret;
++
++// 	feature[0] = MXIC_BLOCK_PROTECTION_ALL_LOCK;
++// 	nand_select_target(chip, 0);
++// 	ret = nand_set_features(chip, ONFI_FEATURE_ADDR_MXIC_PROTECTION,
++// 				feature);
++// 	nand_deselect_target(chip);
++// 	if (ret)
++// 		pr_err("%s all blocks failed\n", __func__);
++
++// 	return ret;
++// }
++
++// static int mxic_nand_unlock(struct nand_chip *chip, loff_t ofs, uint64_t len)
++// {
++// 	u8 feature[ONFI_SUBFEATURE_PARAM_LEN];
++// 	int ret;
++
++// 	feature[0] = MXIC_BLOCK_PROTECTION_ALL_UNLOCK;
++// 	nand_select_target(chip, 0);
++// 	ret = nand_set_features(chip, ONFI_FEATURE_ADDR_MXIC_PROTECTION,
++// 				feature);
++// 	nand_deselect_target(chip);
++// 	if (ret)
++// 		pr_err("%s all blocks failed\n", __func__);
++
++// 	return ret;
++// }
++
++// static void macronix_nand_block_protection_support(struct nand_chip *chip)
++// {
++// 	u8 feature[ONFI_SUBFEATURE_PARAM_LEN];
++// 	int ret;
++
++// 	bitmap_set(chip->parameters.get_feature_list,
++// 		   ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1);
++
++// 	feature[0] = MXIC_BLOCK_PROTECTION_ALL_UNLOCK;
++// 	nand_select_target(chip, 0);
++// 	ret = nand_get_features(chip, ONFI_FEATURE_ADDR_MXIC_PROTECTION,
++// 				feature);
++// 	nand_deselect_target(chip);
++// 	if (ret || feature[0] != MXIC_BLOCK_PROTECTION_ALL_LOCK) {
++// 		if (ret)
++// 			pr_err("Block protection check failed\n");
++
++// 		bitmap_clear(chip->parameters.get_feature_list,
++// 			     ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1);
++// 		return;
++// 	}
++
++// 	bitmap_set(chip->parameters.set_feature_list,
++// 		   ONFI_FEATURE_ADDR_MXIC_PROTECTION, 1);
++
++// 	chip->ops.lock_area = mxic_nand_lock;
++// 	chip->ops.unlock_area = mxic_nand_unlock;
++// }
+ 
+ static int nand_power_down_op(struct nand_chip *chip)
+ {