misc: genwqe: card_base: Whole host of kerneldoc fixes

>From missing documentation for function arguments, to promotion
obvious kerneldoc headers and incorrectly named arguments.

Fixes the following W=1 warnings:

 drivers/misc/genwqe/card_base.c:175: warning: Function parameter or member 'cd' not described in 'genwqe_bus_reset'
 drivers/misc/genwqe/card_base.c:272: warning: Function parameter or member 'cd' not described in 'genwqe_recovery_on_fatal_gfir_required'
 drivers/misc/genwqe/card_base.c:293: warning: Function parameter or member 'cd' not described in 'genwqe_T_psec'
 drivers/misc/genwqe/card_base.c:314: warning: Function parameter or member 'cd' not described in 'genwqe_setup_pf_jtimer'
 drivers/misc/genwqe/card_base.c:334: warning: Function parameter or member 'cd' not described in 'genwqe_setup_vf_jtimer'
 drivers/misc/genwqe/card_base.c:557: warning: Function parameter or member 'cd' not described in 'genwqe_stop'
 drivers/misc/genwqe/card_base.c:617: warning: Function parameter or member 'cd' not described in 'genwqe_fir_checking'
 drivers/misc/genwqe/card_base.c:760: warning: Function parameter or member 'pci_dev' not described in 'genwqe_pci_fundamental_reset'
 drivers/misc/genwqe/card_base.c:889: warning: Function parameter or member 'data' not described in 'genwqe_health_thread'
 drivers/misc/genwqe/card_base.c:1046: warning: Function parameter or member 'cd' not described in 'genwqe_pci_setup'
 drivers/misc/genwqe/card_base.c:1131: warning: Function parameter or member 'cd' not described in 'genwqe_pci_remove'
 drivers/misc/genwqe/card_base.c:1151: warning: Function parameter or member 'pci_dev' not described in 'genwqe_probe'
 drivers/misc/genwqe/card_base.c:1151: warning: Function parameter or member 'id' not described in 'genwqe_probe'
 drivers/misc/genwqe/card_base.c:1151: warning: Excess function parameter 'pdev' description in 'genwqe_probe'
 drivers/misc/genwqe/card_base.c:1207: warning: Function parameter or member 'pci_dev' not described in 'genwqe_remove'
 drivers/misc/genwqe/card_base.c:1336: warning: Function parameter or member 'dev' not described in 'genwqe_devnode'
 drivers/misc/genwqe/card_base.c:1336: warning: Function parameter or member 'mode' not described in 'genwqe_devnode'

Cc: Michael Jung <mijung@gmx.net>
Cc: Michael Ruettger <michael@ibmra.de>
Cc: Frank Haverkamp <haver@linux.ibm.com>
Cc: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Frank Haverkamp <haver@linux.ibm.com>
Link: https://lore.kernel.org/r/20200701085853.164358-19-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/genwqe/card_base.c

@@ -165,6 +165,7 @@ static void genwqe_dev_free(struct genwqe_dev *cd)
 
 /**
  * genwqe_bus_reset() - Card recovery
+ * @cd: GenWQE device information
  *
  * pci_reset_function() will recover the device and ensure that the
  * registers are accessible again when it completes with success. If
@@ -262,6 +263,7 @@ static void genwqe_tweak_hardware(struct genwqe_dev *cd)
 
 /**
  * genwqe_recovery_on_fatal_gfir_required() - Version depended actions
+ * @cd: GenWQE device information
  *
  * Bitstreams older than 2013-02-17 have a bug where fatal GFIRs must
  * be ignored. This is e.g. true for the bitstream we gave to the card
@@ -280,6 +282,7 @@ int genwqe_flash_readback_fails(struct genwqe_dev *cd)
 
 /**
  * genwqe_T_psec() - Calculate PF/VF timeout register content
+ * @cd: GenWQE device information
  *
  * Note: From a design perspective it turned out to be a bad idea to
  * use codes here to specifiy the frequency/speed values. An old
@@ -303,6 +306,7 @@ static int genwqe_T_psec(struct genwqe_dev *cd)
 
 /**
  * genwqe_setup_pf_jtimer() - Setup PF hardware timeouts for DDCB execution
+ * @cd: GenWQE device information
  *
  * Do this _after_ card_reset() is called. Otherwise the values will
  * vanish. The settings need to be done when the queues are inactive.
@@ -329,6 +333,7 @@ static bool genwqe_setup_pf_jtimer(struct genwqe_dev *cd)
 
 /**
  * genwqe_setup_vf_jtimer() - Setup VF hardware timeouts for DDCB execution
+ * @cd: GenWQE device information
  */
 static bool genwqe_setup_vf_jtimer(struct genwqe_dev *cd)
 {
@@ -543,6 +548,7 @@ static int genwqe_start(struct genwqe_dev *cd)
 
 /**
  * genwqe_stop() - Stop card operation
+ * @cd: GenWQE device information
  *
  * Recovery notes:
  *   As long as genwqe_thread runs we might access registers during
@@ -620,6 +626,7 @@ static int genwqe_health_check_cond(struct genwqe_dev *cd, u64 *gfir)
 
 /**
  * genwqe_fir_checking() - Check the fault isolation registers of the card
+ * @cd: GenWQE device information
  *
  * If this code works ok, can be tried out with help of the genwqe_poke tool:
  *   sudo ./tools/genwqe_poke 0x8 0xfefefefefef
@@ -764,6 +771,7 @@ static u64 genwqe_fir_checking(struct genwqe_dev *cd)
 
 /**
  * genwqe_pci_fundamental_reset() - trigger a PCIe fundamental reset on the slot
+ * @pci_dev:	PCI device information struct
  *
  * Note: pci_set_pcie_reset_state() is not implemented on all archs, so this
  * reset method will not work in all cases.
@@ -828,8 +836,9 @@ static int genwqe_platform_recovery(struct genwqe_dev *cd)
 	return rc;
 }
 
-/*
+/**
  * genwqe_reload_bistream() - reload card bitstream
+ * @cd: GenWQE device information
  *
  * Set the appropriate register and call fundamental reset to reaload the card
  * bitstream.
@@ -882,6 +891,7 @@ static int genwqe_reload_bistream(struct genwqe_dev *cd)
 
 /**
  * genwqe_health_thread() - Health checking thread
+ * @data: GenWQE device information
  *
  * This thread is only started for the PF of the card.
  *
@@ -1055,6 +1065,7 @@ static int genwqe_health_check_stop(struct genwqe_dev *cd)
 
 /**
  * genwqe_pci_setup() - Allocate PCIe related resources for our card
+ * @cd: GenWQE device information
  */
 static int genwqe_pci_setup(struct genwqe_dev *cd)
 {
@@ -1140,6 +1151,7 @@ static int genwqe_pci_setup(struct genwqe_dev *cd)
 
 /**
  * genwqe_pci_remove() - Free PCIe related resources for our card
+ * @cd: GenWQE device information
  */
 static void genwqe_pci_remove(struct genwqe_dev *cd)
 {
@@ -1154,7 +1166,8 @@ static void genwqe_pci_remove(struct genwqe_dev *cd)
 
 /**
  * genwqe_probe() - Device initialization
- * @pdev:	PCI device information struct
+ * @pci_dev:	PCI device information struct
+ * @id:		PCI device ID
  *
  * Callable for multiple cards. This function is called on bind.
  *
@@ -1214,6 +1227,7 @@ static int genwqe_probe(struct pci_dev *pci_dev,
 
 /**
  * genwqe_remove() - Called when device is removed (hot-plugable)
+ * @pci_dev:	PCI device information struct
  *
  * Or when driver is unloaded respecitively when unbind is done.
  */
@@ -1233,8 +1247,10 @@ static void genwqe_remove(struct pci_dev *pci_dev)
 	genwqe_dev_free(cd);
 }
 
-/*
+/**
  * genwqe_err_error_detected() - Error detection callback
+ * @pci_dev:	PCI device information struct
+ * @state:	PCI channel state
  *
  * This callback is called by the PCI subsystem whenever a PCI bus
  * error is detected.
@@ -1342,6 +1358,8 @@ static struct pci_driver genwqe_driver = {
 
 /**
  * genwqe_devnode() - Set default access mode for genwqe devices.
+ * @dev:	Pointer to device (unused)
+ * @mode:	Carrier to pass-back given mode (permissions)
  *
  * Default mode should be rw for everybody. Do not change default
  * device name.