From: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
To: Linux Doc Mailing List <linux-doc@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Mauro Carvalho Chehab <mchehab@infradead.org>,
linux-kernel@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
Kamil Debski <kamil@wypas.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>
Subject: [PATCH v2 54/79] docs: phy: convert samsung-usb2.txt to ReST format
Date: Mon, 22 Apr 2019 10:27:43 -0300 [thread overview]
Message-ID: <f514497d70f22ef6b2002138c9a3d99210bc1d74.1555938376.git.mchehab+samsung@kernel.org> (raw)
In-Reply-To: <cover.1555938375.git.mchehab+samsung@kernel.org>
In order to merge it into a Sphinx book, we need first to
convert to ReST.
While this is not part of any book, mark it as :orphan:, in order
to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
.../{samsung-usb2.txt => samsung-usb2.rst} | 62 ++++++++++---------
MAINTAINERS | 2 +-
2 files changed, 34 insertions(+), 30 deletions(-)
rename Documentation/phy/{samsung-usb2.txt => samsung-usb2.rst} (77%)
diff --git a/Documentation/phy/samsung-usb2.txt b/Documentation/phy/samsung-usb2.rst
similarity index 77%
rename from Documentation/phy/samsung-usb2.txt
rename to Documentation/phy/samsung-usb2.rst
index ed12d437189d..98b5952fcb97 100644
--- a/Documentation/phy/samsung-usb2.txt
+++ b/Documentation/phy/samsung-usb2.rst
@@ -1,9 +1,11 @@
-.------------------------------------------------------------------------------+
-| Samsung USB 2.0 PHY adaptation layer |
-+-----------------------------------------------------------------------------+'
+:orphan:
-| 1. Description
-+----------------
+====================================
+Samsung USB 2.0 PHY adaptation layer
+====================================
+
+1. Description
+--------------
The architecture of the USB 2.0 PHY module in Samsung SoCs is similar
among many SoCs. In spite of the similarities it proved difficult to
@@ -14,8 +16,8 @@ the PHY powering up process had to be altered. This adaptation layer is
a compromise between having separate drivers and having a single driver
with added support for many special cases.
-| 2. Files description
-+----------------------
+2. Files description
+--------------------
- phy-samsung-usb2.c
This is the main file of the adaptation layer. This file contains
@@ -32,44 +34,45 @@ with added support for many special cases.
driver. In addition it should contain extern declarations for
structures that describe particular SoCs.
-| 3. Supporting SoCs
-+--------------------
+3. Supporting SoCs
+------------------
To support a new SoC a new file should be added to the drivers/phy
directory. Each SoC's configuration is stored in an instance of the
-struct samsung_usb2_phy_config.
+struct samsung_usb2_phy_config::
-struct samsung_usb2_phy_config {
+ struct samsung_usb2_phy_config {
const struct samsung_usb2_common_phy *phys;
int (*rate_to_clk)(unsigned long, u32 *);
unsigned int num_phys;
bool has_mode_switch;
-};
+ };
-The num_phys is the number of phys handled by the driver. *phys is an
+The num_phys is the number of phys handled by the driver. `*phys` is an
array that contains the configuration for each phy. The has_mode_switch
property is a boolean flag that determines whether the SoC has USB host
and device on a single pair of pins. If so, a special register has to
be modified to change the internal routing of these pins between a USB
device or host module.
-For example the configuration for Exynos 4210 is following:
+For example the configuration for Exynos 4210 is following::
-const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = {
+ const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = {
.has_mode_switch = 0,
.num_phys = EXYNOS4210_NUM_PHYS,
.phys = exynos4210_phys,
.rate_to_clk = exynos4210_rate_to_clk,
-}
+ }
+
+- `int (*rate_to_clk)(unsigned long, u32 *)`
-- int (*rate_to_clk)(unsigned long, u32 *)
The rate_to_clk callback is to convert the rate of the clock
used as the reference clock for the PHY module to the value
that should be written in the hardware register.
-The exynos4210_phys configuration array is as follows:
+The exynos4210_phys configuration array is as follows::
-static const struct samsung_usb2_common_phy exynos4210_phys[] = {
+ static const struct samsung_usb2_common_phy exynos4210_phys[] = {
{
.label = "device",
.id = EXYNOS4210_DEVICE,
@@ -95,29 +98,30 @@ static const struct samsung_usb2_common_phy exynos4210_phys[] = {
.power_off = exynos4210_power_off,
},
{},
-};
+ };
+
+- `int (*power_on)(struct samsung_usb2_phy_instance *);`
+ `int (*power_off)(struct samsung_usb2_phy_instance *);`
-- int (*power_on)(struct samsung_usb2_phy_instance *);
-- int (*power_off)(struct samsung_usb2_phy_instance *);
These two callbacks are used to power on and power off the phy
by modifying appropriate registers.
Final change to the driver is adding appropriate compatible value to the
phy-samsung-usb2.c file. In case of Exynos 4210 the following lines were
-added to the struct of_device_id samsung_usb2_phy_of_match[] array:
+added to the struct of_device_id samsung_usb2_phy_of_match[] array::
-#ifdef CONFIG_PHY_EXYNOS4210_USB2
+ #ifdef CONFIG_PHY_EXYNOS4210_USB2
{
.compatible = "samsung,exynos4210-usb2-phy",
.data = &exynos4210_usb2_phy_config,
},
-#endif
+ #endif
To add further flexibility to the driver the Kconfig file enables to
include support for selected SoCs in the compiled driver. The Kconfig
-entry for Exynos 4210 is following:
+entry for Exynos 4210 is following::
-config PHY_EXYNOS4210_USB2
+ config PHY_EXYNOS4210_USB2
bool "Support for Exynos 4210"
depends on PHY_SAMSUNG_USB2
depends on CPU_EXYNOS4210
@@ -128,8 +132,8 @@ config PHY_EXYNOS4210_USB2
phys are available - device, host, HSCI0 and HSCI1.
The newly created file that supports the new SoC has to be also added to the
-Makefile. In case of Exynos 4210 the added line is following:
+Makefile. In case of Exynos 4210 the added line is following::
-obj-$(CONFIG_PHY_EXYNOS4210_USB2) += phy-exynos4210-usb2.o
+ obj-$(CONFIG_PHY_EXYNOS4210_USB2) += phy-exynos4210-usb2.o
After completing these steps the support for the new SoC should be ready.
diff --git a/MAINTAINERS b/MAINTAINERS
index 10cac0512711..9c99c5f47381 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13783,7 +13783,7 @@ M: Sylwester Nawrocki <s.nawrocki@samsung.com>
L: linux-kernel@vger.kernel.org
S: Supported
F: Documentation/devicetree/bindings/phy/samsung-phy.txt
-F: Documentation/phy/samsung-usb2.txt
+F: Documentation/phy/samsung-usb2.rst
F: drivers/phy/samsung/phy-exynos4210-usb2.c
F: drivers/phy/samsung/phy-exynos4x12-usb2.c
F: drivers/phy/samsung/phy-exynos5250-usb2.c
--
2.20.1
next prev parent reply other threads:[~2019-04-22 13:32 UTC|newest]
Thread overview: 124+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190423132100.GB7132@redhat.com>
2019-04-22 13:26 ` [PATCH v2 00/79] Convert files to ReST Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 01/79] docs: core-api: fix broken references for div64.c and gcd.c Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 02/79] docs: trace: fix some Sphinx warnings Mauro Carvalho Chehab
2019-04-24 15:10 ` Steven Rostedt
2019-04-22 13:26 ` [PATCH v2 03/79] scripts/documentation-file-ref-check: don't parse Next/ dir Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 04/79] docs: aoe: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 05/79] docs: arm64: convert docs to ReST and rename to .rst Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 06/79] docs: cdrom-standard.tex: convert from LaTeX to ReST Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 07/79] docs: cdrom: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 08/79] docs: cgroup-v1: " Mauro Carvalho Chehab
2019-05-06 15:47 ` Tejun Heo
2019-04-22 13:26 ` [PATCH v2 09/79] docs: cgroup-v1/blkio-controller.rst: add a note about CFQ scheduler Mauro Carvalho Chehab
2019-04-22 13:26 ` [PATCH v2 10/79] docs: cpu-freq: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-23 8:21 ` Rafael J. Wysocki
2019-04-22 13:27 ` [PATCH v2 11/79] docs: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 12/79] docs: fault-injection: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 13/79] docs: fb: " Mauro Carvalho Chehab
2019-05-06 13:40 ` Bartlomiej Zolnierkiewicz
2019-04-22 13:27 ` [PATCH v2 14/79] docs: fpga: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 15/79] docs: gpio: " Mauro Carvalho Chehab
2019-04-23 11:23 ` Linus Walleij
2019-04-23 12:36 ` Mauro Carvalho Chehab
2019-04-23 21:30 ` Linus Walleij
2019-04-22 13:27 ` [PATCH v2 16/79] docs: ide: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 17/79] docs: infiniband: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 19/79] docs: kdump: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 20/79] docs: livepatch: " Mauro Carvalho Chehab
2019-04-26 8:10 ` Petr Mladek
2019-04-26 9:04 ` Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 21/79] docs: locking: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 22/79] docs: mic: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 23/79] docs: netlabel: " Mauro Carvalho Chehab
2019-04-22 18:10 ` Paul Moore
2019-04-22 13:27 ` [PATCH v2 24/79] docs: pcmcia: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 25/79] docs: " Mauro Carvalho Chehab
2019-04-22 13:48 ` Bjorn Helgaas
2019-04-22 14:07 ` Mauro Carvalho Chehab
2019-04-25 18:07 ` Mark Brown
2019-04-26 9:46 ` Mauro Carvalho Chehab
2019-04-27 17:25 ` Mark Brown
2019-04-27 18:13 ` Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 26/79] docs: powerpc: " Mauro Carvalho Chehab
2019-04-24 1:15 ` Andrew Donnellan
2019-04-22 13:27 ` [PATCH v2 27/79] docs: pps.txt: convert to ReST and rename to pps.rst Mauro Carvalho Chehab
2019-04-22 16:19 ` Rodolfo Giometti
2019-04-22 13:27 ` [PATCH v2 28/79] docs: ptp.txt: convert to ReST and move to driver-api Mauro Carvalho Chehab
2019-04-22 15:40 ` Richard Cochran
2019-04-22 13:27 ` [PATCH v2 29/79] docs: riscv: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 30/79] docs: Debugging390.txt: convert table to ascii artwork Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 31/79] docs: s390: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-23 16:12 ` Farhan Ali
2019-04-23 19:46 ` Mauro Carvalho Chehab
2019-04-24 11:41 ` Cornelia Huck
2019-04-24 12:30 ` Heiko Carstens
2019-04-24 12:44 ` Mauro Carvalho Chehab
2019-04-24 12:52 ` Cornelia Huck
2019-04-22 13:27 ` [PATCH v2 32/79] s390: include/asm/debug.h add kerneldoc markups Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 33/79] docs: serial: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 34/79] docs: target: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 35/79] docs: timers: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 36/79] docs: watchdog: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 37/79] docs: xilinx: convert eemi.txt to eemi.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 38/79] docs: scheduler: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-23 8:29 ` Peter Zijlstra
2019-04-23 10:32 ` Ingo Molnar
2019-04-23 11:19 ` Peter Zijlstra
2019-04-23 12:30 ` Ingo Molnar
2019-04-22 13:27 ` [PATCH v2 39/79] docs: EDID/HOWTO.txt: convert it and rename to howto.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 40/79] convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 41/79] docs: lcd-panel-cgram.txt: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 42/79] docs: lp855x-driver.txt: convert to ReST and move to kernel-api Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 43/79] docs: m68k: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-05-03 11:55 ` Geert Uytterhoeven
2019-04-22 13:27 ` [PATCH v2 44/79] docs: cma/debugfs.txt: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 45/79] docs: console.txt: " Mauro Carvalho Chehab
2019-05-06 13:41 ` Bartlomiej Zolnierkiewicz
2019-04-22 13:27 ` [PATCH v2 46/79] docs: pti_intel_mid.txt: convert it to pti_intel_mid.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 47/79] docs: early-userspace: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 48/79] docs: driver-model: " Mauro Carvalho Chehab
2019-04-22 14:47 ` Julia Lawall
2019-04-22 22:30 ` Guenter Roeck
2019-04-22 13:27 ` [PATCH v2 50/79] docs: memory-devices: convert ti-emif.txt to ReST Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 51/79] docs: xen-tpmfront.txt: convert it to .rst Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 52/79] docs: bus-devices: ti-gpmc.rst: convert it to ReST Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 53/79] docs: nvmem: convert docs to ReST and rename to *.rst Mauro Carvalho Chehab
2019-04-22 13:27 ` Mauro Carvalho Chehab [this message]
2019-04-22 13:27 ` [PATCH v2 55/79] docs: rbtree.txt: fix Sphinx build warnings Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 57/79] docs: accounting: convert to ReST Mauro Carvalho Chehab
2019-05-06 15:46 ` Tejun Heo
2019-04-22 13:27 ` [PATCH v2 58/79] docs: fmc: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 59/79] docs: hid: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 60/79] docs: ia64: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 61/79] docs: leds: " Mauro Carvalho Chehab
2019-04-23 19:00 ` Jacek Anaszewski
2019-04-22 13:27 ` [PATCH v2 62/79] docs: laptops: " Mauro Carvalho Chehab
2019-05-06 8:59 ` Andy Shevchenko
2019-04-22 13:27 ` [PATCH v2 63/79] docs: iio: " Mauro Carvalho Chehab
2019-04-22 14:25 ` Jonathan Cameron
2019-04-22 13:27 ` [PATCH v2 64/79] docs: ioctl-number.txt: convert it to ReST format Mauro Carvalho Chehab
2019-04-22 14:05 ` Doug Ledford
2019-04-22 14:17 ` Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 65/79] docs: ioctl: convert to ReST Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 66/79] docs: namespaces: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 67/79] docs: nfc: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 68/79] docs: md: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 69/79] docs: mtd: " Mauro Carvalho Chehab
2019-04-22 13:27 ` [PATCH v2 70/79] docs: nvdimm: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 71/79] docs: xtensa: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 72/79] docs: mmc: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 73/79] docs: sparc: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 74/79] docs: thermal: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 75/79] docs: rapidio: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 76/79] docs: blockdev: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 77/79] docs: perf: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 78/79] docs: sysctl: " Mauro Carvalho Chehab
2019-04-22 13:28 ` [PATCH v2 79/79] docs: block: " Mauro Carvalho Chehab
2019-04-22 14:51 ` [PATCH v2 00/79] Convert files " Mauro Carvalho Chehab
[not found] ` <cda57849a6462ccc72dcd360b30068ab6a1021c4.1555938376.git.mchehab+samsung@kernel.org>
[not found] ` <20190423083135.GA11158@hirez.programming.kicks-ass.net>
[not found] ` <20190423125519.GA7104@redhat.com>
[not found] ` <20190423130132.GT4038@hirez.programming.kicks-ass.net>
2019-04-23 14:52 ` [PATCH v2 56/79] docs: Documentation/*.txt: rename all ReST files to *.rst David Howells
2019-04-23 16:54 ` Jonathan Corbet
2019-04-23 17:12 ` Peter Zijlstra
2019-04-23 20:26 ` Mauro Carvalho Chehab
2019-04-24 11:51 ` Mike Rapoport
2019-04-24 12:57 ` Mauro Carvalho Chehab
2019-04-23 19:37 ` Mauro Carvalho Chehab
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