eisa.txt: standardize document format

Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use ReST notation for titles;
- identify literal blocks;
- use :Author: for document authorship;
- use the proper notation for tables;
- adjust whitespaces where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/eisa.txt

-EISA bus support (Marc Zyngier <maz@wild-wind.fr.eu.org>)
+================
+EISA bus support
+================
+
+:Author: Marc Zyngier <maz@wild-wind.fr.eu.org>
 
 This document groups random notes about porting EISA drivers to the
 new EISA/sysfs API.
@@ -14,7 +18,7 @@ detection code is generally also used to probe ISA cards). Moreover,
 most EISA drivers are among the oldest Linux drivers so, as you can
 imagine, some dust has settled here over the years.
 
-The EISA infrastructure is made up of three parts :
+The EISA infrastructure is made up of three parts:
 
     - The bus code implements most of the generic code. It is shared
       among all the architectures that the EISA code runs on. It
@@ -37,15 +41,18 @@ The EISA infrastructure is made up of three parts :
 Every function/structure below lives in <linux/eisa.h>, which depends
 heavily on <linux/device.h>.
 
-** Bus root driver :
+Bus root driver
+===============
+
+::
 
-int eisa_root_register (struct eisa_root_device *root);
+	int eisa_root_register (struct eisa_root_device *root);
 
 The eisa_root_register function is used to declare a device as the
 root of an EISA bus. The eisa_root_device structure holds a reference
-to this device, as well as some parameters for probing purposes.
+to this device, as well as some parameters for probing purposes::
 
-struct eisa_root_device {
+	struct eisa_root_device {
 		struct device   *dev;	 /* Pointer to bridge device */
 		struct resource *res;
 		unsigned long    bus_base_addr;
@@ -54,70 +61,80 @@ struct eisa_root_device {
 		u64		 dma_mask; /* from bridge device */
 		int              bus_nr; /* Set by eisa_root_register */
 		struct resource  eisa_root_res;	/* ditto */
-};
+	};
+
+============= ======================================================
+node          used for eisa_root_register internal purpose
+dev           pointer to the root device
+res           root device I/O resource
+bus_base_addr slot 0 address on this bus
+slots	      max slot number to probe
+force_probe   Probe even when slot 0 is empty (no EISA mainboard)
+dma_mask      Default DMA mask. Usually the bridge device dma_mask.
+bus_nr	      unique bus id, set by eisa_root_register
+============= ======================================================
 
-node          : used for eisa_root_register internal purpose
-dev           : pointer to the root device
-res           : root device I/O resource
-bus_base_addr : slot 0 address on this bus
-slots	      : max slot number to probe
-force_probe   : Probe even when slot 0 is empty (no EISA mainboard)
-dma_mask      : Default DMA mask. Usually the bridge device dma_mask.
-bus_nr	      : unique bus id, set by eisa_root_register
+Driver
+======
 
-** Driver :
+::
 
-int eisa_driver_register (struct eisa_driver *edrv);
-void eisa_driver_unregister (struct eisa_driver *edrv);
+	int eisa_driver_register (struct eisa_driver *edrv);
+	void eisa_driver_unregister (struct eisa_driver *edrv);
 
 Clear enough ?
 
-struct eisa_device_id {
+::
+
+	struct eisa_device_id {
 		char sig[EISA_SIG_LEN];
 		unsigned long driver_data;
-};
+	};
 
-struct eisa_driver {
+	struct eisa_driver {
 		const struct eisa_device_id *id_table;
 		struct device_driver         driver;
-};
+	};
 
-id_table	: an array of NULL terminated EISA id strings,
+=============== ====================================================
+id_table	an array of NULL terminated EISA id strings,
 		followed by an empty string. Each string can
 		optionally be paired with a driver-dependent value
 		(driver_data).
 
-driver		: a generic driver, such as described in
+driver		a generic driver, such as described in
 		Documentation/driver-model/driver.txt. Only .name,
 		.probe and .remove members are mandatory.
+=============== ====================================================
 
-An example is the 3c59x driver :
+An example is the 3c59x driver::
 
-static struct eisa_device_id vortex_eisa_ids[] = {
+	static struct eisa_device_id vortex_eisa_ids[] = {
 		{ "TCM5920", EISA_3C592_OFFSET },
 		{ "TCM5970", EISA_3C597_OFFSET },
 		{ "" }
-};
+	};
 
-static struct eisa_driver vortex_eisa_driver = {
+	static struct eisa_driver vortex_eisa_driver = {
 		.id_table = vortex_eisa_ids,
 		.driver   = {
 			.name    = "3c59x",
 			.probe   = vortex_eisa_probe,
 			.remove  = vortex_eisa_remove
 		}
-};
+	};
 
-** Device :
+Device
+======
 
 The sysfs framework calls .probe and .remove functions upon device
 discovery and removal (note that the .remove function is only called
 when driver is built as a module).
 
 Both functions are passed a pointer to a 'struct device', which is
-encapsulated in a 'struct eisa_device' described as follows :
+encapsulated in a 'struct eisa_device' described as follows::
 
-struct eisa_device {
+	struct eisa_device {
 		struct eisa_device_id id;
 		int                   slot;
 		int                   state;
@@ -125,57 +142,65 @@ struct eisa_device {
 		struct resource       res[EISA_MAX_RESOURCES];
 		u64                   dma_mask;
 		struct device         dev; /* generic device */
-};
+	};
 
-id	: EISA id, as read from device. id.driver_data is set from the
+======== ============================================================
+id	 EISA id, as read from device. id.driver_data is set from the
 	 matching driver EISA id.
-slot	: slot number which the device was detected on
-state   : set of flags indicating the state of the device. Current
+slot	 slot number which the device was detected on
+state    set of flags indicating the state of the device. Current
 	 flags are EISA_CONFIG_ENABLED and EISA_CONFIG_FORCED.
-res	: set of four 256 bytes I/O regions allocated to this device
-dma_mask: DMA mask set from the parent device.
-dev	: generic device (see Documentation/driver-model/device.txt)
+res	 set of four 256 bytes I/O regions allocated to this device
+dma_mask DMA mask set from the parent device.
+dev	 generic device (see Documentation/driver-model/device.txt)
+======== ============================================================
 
 You can get the 'struct eisa_device' from 'struct device' using the
 'to_eisa_device' macro.
 
-** Misc stuff :
+Misc stuff
+==========
+
+::
 
-void eisa_set_drvdata (struct eisa_device *edev, void *data);
+	void eisa_set_drvdata (struct eisa_device *edev, void *data);
 
 Stores data into the device's driver_data area.
 
-void *eisa_get_drvdata (struct eisa_device *edev):
+::
+
+	void *eisa_get_drvdata (struct eisa_device *edev):
 
 Gets the pointer previously stored into the device's driver_data area.
 
-int eisa_get_region_index (void *addr);
+::
+
+	int eisa_get_region_index (void *addr);
 
 Returns the region number (0 <= x < EISA_MAX_RESOURCES) of a given
 address.
 
-** Kernel parameters :
-
-eisa_bus.enable_dev :
-
-A comma-separated list of slots to be enabled, even if the firmware
-set the card as disabled. The driver must be able to properly
-initialize the device in such conditions.
+Kernel parameters
+=================
 
-eisa_bus.disable_dev :
+eisa_bus.enable_dev
+	A comma-separated list of slots to be enabled, even if the firmware
+	set the card as disabled. The driver must be able to properly
+	initialize the device in such conditions.
 
-A comma-separated list of slots to be enabled, even if the firmware
-set the card as enabled. The driver won't be called to handle this
-device.
+eisa_bus.disable_dev
+	A comma-separated list of slots to be enabled, even if the firmware
+	set the card as enabled. The driver won't be called to handle this
+	device.
 
-virtual_root.force_probe :
+virtual_root.force_probe
+	Force the probing code to probe EISA slots even when it cannot find an
+	EISA compliant mainboard (nothing appears on slot 0). Defaults to 0
+	(don't force), and set to 1 (force probing) when either
+	CONFIG_ALPHA_JENSEN or CONFIG_EISA_VLB_PRIMING are set.
 
-Force the probing code to probe EISA slots even when it cannot find an
-EISA compliant mainboard (nothing appears on slot 0). Defaults to 0
-(don't force), and set to 1 (force probing) when either
-CONFIG_ALPHA_JENSEN or CONFIG_EISA_VLB_PRIMING are set.
-
-** Random notes :
+Random notes
+============
 
 Converting an EISA driver to the new API mostly involves *deleting*
 code (since probing is now in the core EISA code). Unfortunately, most
@@ -194,9 +219,11 @@ routine.
 For example, switching your favorite EISA SCSI card to the "hotplug"
 model is "the right thing"(tm).
 
-** Thanks :
+Thanks
+======
+
+I'd like to thank the following people for their help:
 
-I'd like to thank the following people for their help :
 - Xavier Benigni for lending me a wonderful Alpha Jensen,
 - James Bottomley, Jeff Garzik for getting this stuff into the kernel,
 - Andries Brouwer for contributing numerous EISA ids,