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