Add a new directory in the driver API guide for PCI specific
documentation.

This is in preparation for adding a new PCI P2P DMA driver writers
guide which will go in this directory.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Vinod Koul <redacted>
Cc: Linus Walleij <redacted>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Thierry Reding <redacted>
Cc: Sanyog Kale <redacted>
Cc: Sagar Dharia <redacted>
---
 Documentation/driver-api/index.rst         |  2 +-
 Documentation/driver-api/pci/index.rst     | 20 ++++++++++++++++++++
 Documentation/driver-api/{ => pci}/pci.rst |  0
 3 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/driver-api/pci/index.rst
 rename Documentation/driver-api/{ => pci}/pci.rst (100%)

diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst
index 6d9f2f9fe20e..e9e7d24169cf 100644
--- a/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst

@@ -29,7 +29,7 @@ available subsections can be seen below.
    iio/index
    input
    usb/index
-   pci
+   pci/index
    spi
    i2c
    hsi

diff --git a/Documentation/driver-api/pci/index.rst b/Documentation/driver-api/pci/index.rst
new file mode 100644
index 000000000000..eaf20b24bf7d
--- /dev/null
+++ b/Documentation/driver-api/pci/index.rst

@@ -0,0 +1,20 @@
+.. SPDX-License-Identifier: GPL-2.0
+============================================
+The Linux PCI driver implementer's API guide
+============================================
+
+.. class:: toc-title
+
+	   Table of contents
+
+.. toctree::
+   :maxdepth: 2
+
+   pci
+
+.. only::  subproject and html
+
+   Indices
+   =======
+
+   * :ref:`genindex`

diff --git a/Documentation/driver-api/pci.rst b/Documentation/driver-api/pci/pci.rst
similarity index 100%
rename from Documentation/driver-api/pci.rst
rename to Documentation/driver-api/pci/pci.rst
-- 
2.19.0