mac80211: ath9k-htc: support "eeprom" in debugfs

ath9k-htc USB-based adapterssupport 5/10MHz channel bandwidth, the
same as standard ath9k ones.
Move the code handling the features in debugfs to common-debug.c,
and create proper registration functions to use in debug.c and
htc_drv_debug.c, leaving only debugfs registration there.

While at that, refresh one patch that would conflict otherwise.

Tested on TP-Link Archer C7v2 (ath79) and TP-Link WN722Nv1 (AR9287)
and WN822Nv2 (AR7010+AR9287).

Signed-off-by: Lech Perczak <[email protected]>

package/kernel/mac80211/patches/ath9k/500-ath9k_eeprom_debugfs.patch

@@ -1,14 +1,24 @@
 --- a/drivers/net/wireless/ath/ath9k/debug.c
 +++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1413,6 +1413,54 @@ void ath9k_deinit_debug(struct ath_softc
- 	ath9k_cmn_spectral_deinit_debug(&sc->spec_priv);
- }
+@@ -1471,6 +1471,7 @@ int ath9k_init_debug(struct ath_hw *ah)
+ 
+ 	ath9k_cmn_debug_base_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
+ 	ath9k_cmn_debug_modal_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
++	ath9k_cmn_debug_eeprom(sc->debug.debugfs_phy, sc->sc_ah);
  
+ 	debugfs_create_u32("gpio_mask", 0600,
+ 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
+--- a/drivers/net/wireless/ath/ath9k/common-debug.c
++++ b/drivers/net/wireless/ath/ath9k/common-debug.c
+@@ -260,3 +260,58 @@ void ath9k_cmn_debug_phy_err(struct dent
+ 			    &fops_phy_err);
+ }
+ EXPORT_SYMBOL(ath9k_cmn_debug_phy_err);
++
 +static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
 +			     size_t count, loff_t *ppos)
 +{
-+	struct ath_softc *sc = file->private_data;
-+	struct ath_hw *ah = sc->sc_ah;
++	struct ath_hw *ah = file->private_data;
 +	struct ath_common *common = ath9k_hw_common(ah);
 +	int bytes = 0;
 +	int pos = *ppos;
@@ -52,15 +62,31 @@
 +	.owner = THIS_MODULE
 +};
 +
- int ath9k_init_debug(struct ath_hw *ah)
- {
- 	struct ath_common *common = ath9k_hw_common(ah);
-@@ -1432,6 +1480,8 @@ int ath9k_init_debug(struct ath_hw *ah)
- 	ath9k_tx99_init_debug(sc);
- 	ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
- 
-+	debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
++void ath9k_cmn_debug_eeprom(struct dentry *debugfs_phy,
++			    struct ath_hw *ah)
++{
++	debugfs_create_file("eeprom", S_IRUSR, debugfs_phy, ah,
 +			    &fops_eeprom);
- 	debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
- 				    read_file_dma);
- 	debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
++}
++EXPORT_SYMBOL(ath9k_cmn_debug_eeprom);
+--- a/drivers/net/wireless/ath/ath9k/common-debug.h
++++ b/drivers/net/wireless/ath/ath9k/common-debug.h
+@@ -69,6 +69,8 @@ void ath9k_cmn_debug_modal_eeprom(struct
+ 				  struct ath_hw *ah);
+ void ath9k_cmn_debug_base_eeprom(struct dentry *debugfs_phy,
+ 				 struct ath_hw *ah);
++void ath9k_cmn_debug_eeprom(struct dentry *debugfs_phy,
++			    struct ath_hw *ah);
+ void ath9k_cmn_debug_stat_rx(struct ath_rx_stats *rxstats,
+ 			     struct ath_rx_status *rs);
+ void ath9k_cmn_debug_recv(struct dentry *debugfs_phy,
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+@@ -519,6 +519,7 @@ int ath9k_htc_init_debug(struct ath_hw *
+ 
+ 	ath9k_cmn_debug_base_eeprom(priv->debug.debugfs_phy, priv->ah);
+ 	ath9k_cmn_debug_modal_eeprom(priv->debug.debugfs_phy, priv->ah);
++	ath9k_cmn_debug_eeprom(priv->debug.debugfs_phy, priv->ah);
+ 
+ 	return 0;
+ }

package/kernel/mac80211/patches/ath9k/512-ath9k_channelbw_debugfs.patch

@@ -1,8 +1,8 @@
 --- a/drivers/net/wireless/ath/ath9k/debug.c
 +++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1461,6 +1461,52 @@ static const struct file_operations fops
- 	.owner = THIS_MODULE
- };
+@@ -1413,6 +1413,52 @@ void ath9k_deinit_debug(struct ath_softc
+ 	ath9k_cmn_spectral_deinit_debug(&sc->spec_priv);
+ }
  
 +
 +static ssize_t read_file_chan_bw(struct file *file, char __user *user_buf,
@@ -53,10 +53,10 @@
  int ath9k_init_debug(struct ath_hw *ah)
  {
  	struct ath_common *common = ath9k_hw_common(ah);
-@@ -1482,6 +1528,8 @@ int ath9k_init_debug(struct ath_hw *ah)
+@@ -1432,6 +1478,8 @@ int ath9k_init_debug(struct ath_hw *ah)
+ 	ath9k_tx99_init_debug(sc);
+ 	ath9k_cmn_spectral_init_debug(&sc->spec_priv, sc->debug.debugfs_phy);
  
- 	debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
- 			    &fops_eeprom);
 +	debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
 +			    sc, &fops_chanbw);
  	debugfs_create_devm_seqfile(sc->dev, "dma", sc->debug.debugfs_phy,
@@ -64,7 +64,7 @@
  	debugfs_create_devm_seqfile(sc->dev, "interrupt", sc->debug.debugfs_phy,
 --- a/drivers/net/wireless/ath/ath.h
 +++ b/drivers/net/wireless/ath/ath.h
-@@ -151,6 +151,7 @@ struct ath_common {
+@@ -153,6 +153,7 @@ struct ath_common {
  	int debug_mask;
  	enum ath_device_state state;
  	unsigned long op_flags;