* [PATCH v2] media: s5c73m3: replace legacy gpio interface for gpiod
@ 2022-04-29 0:15 Maíra Canal
2022-04-29 4:48 ` kernel test robot
2022-04-29 7:00 ` kernel test robot
0 siblings, 2 replies; 3+ messages in thread
From: Maíra Canal @ 2022-04-29 0:15 UTC (permalink / raw)
To: s.nawrocki, andrzej.hajda, mchehab; +Cc: linux-media, linux-kernel
Considering the current transition of the GPIO subsystem, remove all
dependencies of the legacy GPIO interface (linux/gpio.h and linux
/of_gpio.h) and replace it with the descriptor-based GPIO approach.
Signed-off-by: Maíra Canal <maira.canal@usp.br>
---
V1 -> V2: As suggested by Andrzej, all s5c73m3 specific gpio code is completely
removed.
---
drivers/media/i2c/s5c73m3/s5c73m3-core.c | 95 ++++++++++--------------
drivers/media/i2c/s5c73m3/s5c73m3.h | 9 +--
include/media/i2c/s5c73m3.h | 15 +---
3 files changed, 44 insertions(+), 75 deletions(-)
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index e2b88c5e4f98..e653157f4b19 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -10,12 +10,11 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/firmware.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/media.h>
#include <linux/module.h>
-#include <linux/of_gpio.h>
#include <linux/of_graph.h>
#include <linux/regulator/consumer.h>
#include <linux/sizes.h>
@@ -1347,22 +1346,26 @@ static int s5c73m3_oif_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
return 0;
}
-static int s5c73m3_gpio_set_value(struct s5c73m3 *priv, int id, u32 val)
+static int s5c73m3_gpio_set_value(struct gpio_desc *gpio, int val)
{
- if (!gpio_is_valid(priv->gpio[id].gpio))
+ if (!gpio)
return 0;
- gpio_set_value(priv->gpio[id].gpio, !!val);
+ gpiod_set_value(gpio, !!val);
return 1;
}
-static int s5c73m3_gpio_assert(struct s5c73m3 *priv, int id)
+static int s5c73m3_gpio_assert(struct gpio_desc *gpio)
{
- return s5c73m3_gpio_set_value(priv, id, priv->gpio[id].level);
+ int val = gpiod_set_value(gpio);
+
+ return s5c73m3_gpio_set_value(gpio, val);
}
-static int s5c73m3_gpio_deassert(struct s5c73m3 *priv, int id)
+static int s5c73m3_gpio_deassert(struct gpio_desc *gpio)
{
- return s5c73m3_gpio_set_value(priv, id, !priv->gpio[id].level);
+ int val = gpiod_set_value(gpio);
+
+ return s5c73m3_gpio_set_value(gpio, !val);
}
static int __s5c73m3_power_on(struct s5c73m3 *state)
@@ -1386,10 +1389,10 @@ static int __s5c73m3_power_on(struct s5c73m3 *state)
v4l2_dbg(1, s5c73m3_dbg, &state->oif_sd, "clock frequency: %ld\n",
clk_get_rate(state->clock));
- s5c73m3_gpio_deassert(state, STBY);
+ s5c73m3_gpio_deassert(state->gpio_stby);
usleep_range(100, 200);
- s5c73m3_gpio_deassert(state, RSET);
+ s5c73m3_gpio_deassert(state->gpio_reset);
usleep_range(50, 100);
return 0;
@@ -1404,10 +1407,10 @@ static int __s5c73m3_power_off(struct s5c73m3 *state)
{
int i, ret;
- if (s5c73m3_gpio_assert(state, RSET))
+ if (s5c73m3_gpio_assert(state->gpio_reset))
usleep_range(10, 50);
- if (s5c73m3_gpio_assert(state, STBY))
+ if (s5c73m3_gpio_assert(state->gpio_stby))
usleep_range(100, 200);
clk_disable_unprepare(state->clock);
@@ -1545,50 +1548,34 @@ static const struct v4l2_subdev_ops oif_subdev_ops = {
static int s5c73m3_configure_gpios(struct s5c73m3 *state)
{
- static const char * const gpio_names[] = {
- "S5C73M3_STBY", "S5C73M3_RST"
- };
struct i2c_client *c = state->i2c_client;
- struct s5c73m3_gpio *g = state->gpio;
- int ret, i;
+ struct device *dev = &c->dev;
+ struct device_node *np = dev->of_node;
- for (i = 0; i < GPIO_NUM; ++i) {
- unsigned int flags = GPIOF_DIR_OUT;
- if (g[i].level)
- flags |= GPIOF_INIT_HIGH;
- ret = devm_gpio_request_one(&c->dev, g[i].gpio, flags,
- gpio_names[i]);
- if (ret) {
- v4l2_err(c, "failed to request gpio %s\n",
- gpio_names[i]);
- return ret;
- }
+ state->gpio_stby = gpiod_get_from_of_node(np, "standby-gpios", 0, GPIOD_ASIS,
+ "S5C73M3_STBY");
+
+ if (IS_ERR(state->gpio_stby)) {
+ v4l2_err(c, "failed to request gpio S5C73M3_STBY");
+ return PTR_ERR(state->gpio_stby);
}
- return 0;
-}
-static int s5c73m3_parse_gpios(struct s5c73m3 *state)
-{
- static const char * const prop_names[] = {
- "standby-gpios", "xshutdown-gpios",
- };
- struct device *dev = &state->i2c_client->dev;
- struct device_node *node = dev->of_node;
- int ret, i;
+ if (state->gpio_stby)
+ gpiod_direction_output(state->gpio_stby,
+ !gpiod_is_active_low(state->gpio_stby));
- for (i = 0; i < GPIO_NUM; ++i) {
- enum of_gpio_flags of_flags;
+ state->gpio_reset = gpiod_get_from_of_node(np, "xshutdown-gpios", 0, GPIOD_ASIS,
+ "S5C73M3_RST");
- ret = of_get_named_gpio_flags(node, prop_names[i],
- 0, &of_flags);
- if (ret < 0) {
- dev_err(dev, "failed to parse %s DT property\n",
- prop_names[i]);
- return -EINVAL;
- }
- state->gpio[i].gpio = ret;
- state->gpio[i].level = !(of_flags & OF_GPIO_ACTIVE_LOW);
+ if (IS_ERR(state->gpio_reset)) {
+ v4l2_err(c, "failed to request gpio S5C73M3_RST");
+ return PTR_ERR(state->gpio_reset);
}
+
+ if (state->gpio_reset)
+ gpiod_direction_output(state->gpio_reset,
+ !gpiod_is_active_low(state->gpio_reset));
+
return 0;
}
@@ -1608,8 +1595,8 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
}
state->mclk_frequency = pdata->mclk_frequency;
- state->gpio[STBY] = pdata->gpio_stby;
- state->gpio[RSET] = pdata->gpio_reset;
+ state->gpio_stby = pdata->gpio_stby;
+ state->gpio_reset = pdata->gpio_reset;
return 0;
}
@@ -1624,10 +1611,6 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
state->mclk_frequency);
}
- ret = s5c73m3_parse_gpios(state);
- if (ret < 0)
- return -EINVAL;
-
node_ep = of_graph_get_next_endpoint(node, NULL);
if (!node_ep) {
dev_warn(dev, "no endpoint defined for node: %pOF\n", node);
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3.h b/drivers/media/i2c/s5c73m3/s5c73m3.h
index c3fcfdd3ea66..f0056ae6e51a 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3.h
+++ b/drivers/media/i2c/s5c73m3/s5c73m3.h
@@ -351,12 +351,6 @@ struct s5c73m3_ctrls {
struct v4l2_ctrl *scene_mode;
};
-enum s5c73m3_gpio_id {
- STBY,
- RSET,
- GPIO_NUM,
-};
-
enum s5c73m3_resolution_types {
RES_ISP,
RES_JPEG,
@@ -383,7 +377,8 @@ struct s5c73m3 {
u32 i2c_read_address;
struct regulator_bulk_data supplies[S5C73M3_MAX_SUPPLIES];
- struct s5c73m3_gpio gpio[GPIO_NUM];
+ struct gpio_desc *gpio_stby;
+ struct gpio_desc *gpio_reset;
struct clk *clock;
diff --git a/include/media/i2c/s5c73m3.h b/include/media/i2c/s5c73m3.h
index a51f1025ba1c..caad855a8394 100644
--- a/include/media/i2c/s5c73m3.h
+++ b/include/media/i2c/s5c73m3.h
@@ -17,19 +17,10 @@
#ifndef MEDIA_S5C73M3__
#define MEDIA_S5C73M3__
+#include <linux/gpio/consumer.h>
#include <linux/videodev2.h>
#include <media/v4l2-mediabus.h>
-/**
- * struct s5c73m3_gpio - data structure describing a GPIO
- * @gpio: GPIO number
- * @level: indicates active state of the @gpio
- */
-struct s5c73m3_gpio {
- int gpio;
- int level;
-};
-
/**
* struct s5c73m3_platform_data - s5c73m3 driver platform data
* @mclk_frequency: sensor's master clock frequency in Hz
@@ -44,8 +35,8 @@ struct s5c73m3_gpio {
struct s5c73m3_platform_data {
unsigned long mclk_frequency;
- struct s5c73m3_gpio gpio_reset;
- struct s5c73m3_gpio gpio_stby;
+ struct gpio_desc *gpio_reset;
+ struct gpio_desc *gpio_stby;
enum v4l2_mbus_type bus_type;
u8 nlanes;
--
2.35.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] media: s5c73m3: replace legacy gpio interface for gpiod
2022-04-29 0:15 [PATCH v2] media: s5c73m3: replace legacy gpio interface for gpiod Maíra Canal
@ 2022-04-29 4:48 ` kernel test robot
2022-04-29 7:00 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2022-04-29 4:48 UTC (permalink / raw)
To: Maíra Canal, s.nawrocki, andrzej.hajda, mchehab
Cc: llvm, kbuild-all, linux-media, linux-kernel
Hi "Maíra,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on media-tree/master]
[also build test ERROR on v5.18-rc4 next-20220428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/intel-lab-lkp/linux/commits/Ma-ra-Canal/media-s5c73m3-replace-legacy-gpio-interface-for-gpiod/20220429-081656
base: git://linuxtv.org/media_tree.git master
config: arm64-randconfig-r022-20220428 (https://download.01.org/0day-ci/archive/20220429/202204291212.g99NfHX0-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project c59473aacce38cd7dd77eebceaf3c98c5707ab3b)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/intel-lab-lkp/linux/commit/427ae1b9cae644d199f9ffc260480dd1c32ec9d6
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Ma-ra-Canal/media-s5c73m3-replace-legacy-gpio-interface-for-gpiod/20220429-081656
git checkout 427ae1b9cae644d199f9ffc260480dd1c32ec9d6
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/media/i2c/s5c73m3/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> drivers/media/i2c/s5c73m3/s5c73m3-core.c:1359:32: error: too few arguments to function call, expected 2, have 1
int val = gpiod_set_value(gpio);
~~~~~~~~~~~~~~~ ^
include/linux/gpio/consumer.h:119:6: note: 'gpiod_set_value' declared here
void gpiod_set_value(struct gpio_desc *desc, int value);
^
drivers/media/i2c/s5c73m3/s5c73m3-core.c:1366:32: error: too few arguments to function call, expected 2, have 1
int val = gpiod_set_value(gpio);
~~~~~~~~~~~~~~~ ^
include/linux/gpio/consumer.h:119:6: note: 'gpiod_set_value' declared here
void gpiod_set_value(struct gpio_desc *desc, int value);
^
2 errors generated.
vim +1359 drivers/media/i2c/s5c73m3/s5c73m3-core.c
1356
1357 static int s5c73m3_gpio_assert(struct gpio_desc *gpio)
1358 {
> 1359 int val = gpiod_set_value(gpio);
1360
1361 return s5c73m3_gpio_set_value(gpio, val);
1362 }
1363
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] media: s5c73m3: replace legacy gpio interface for gpiod
2022-04-29 0:15 [PATCH v2] media: s5c73m3: replace legacy gpio interface for gpiod Maíra Canal
2022-04-29 4:48 ` kernel test robot
@ 2022-04-29 7:00 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2022-04-29 7:00 UTC (permalink / raw)
To: Maíra Canal, s.nawrocki, andrzej.hajda, mchehab
Cc: kbuild-all, linux-media, linux-kernel
Hi "Maíra,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on media-tree/master]
[also build test ERROR on v5.18-rc4 next-20220428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/intel-lab-lkp/linux/commits/Ma-ra-Canal/media-s5c73m3-replace-legacy-gpio-interface-for-gpiod/20220429-081656
base: git://linuxtv.org/media_tree.git master
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220429/202204291438.sh9ZA6U8-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
# https://github.com/intel-lab-lkp/linux/commit/427ae1b9cae644d199f9ffc260480dd1c32ec9d6
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Ma-ra-Canal/media-s5c73m3-replace-legacy-gpio-interface-for-gpiod/20220429-081656
git checkout 427ae1b9cae644d199f9ffc260480dd1c32ec9d6
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/media/i2c/s5c73m3/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/media/i2c/s5c73m3/s5c73m3-core.c: In function 's5c73m3_gpio_assert':
>> drivers/media/i2c/s5c73m3/s5c73m3-core.c:1359:19: error: too few arguments to function 'gpiod_set_value'
1359 | int val = gpiod_set_value(gpio);
| ^~~~~~~~~~~~~~~
In file included from drivers/media/i2c/s5c73m3/s5c73m3-core.c:13:
include/linux/gpio/consumer.h:119:6: note: declared here
119 | void gpiod_set_value(struct gpio_desc *desc, int value);
| ^~~~~~~~~~~~~~~
drivers/media/i2c/s5c73m3/s5c73m3-core.c: In function 's5c73m3_gpio_deassert':
drivers/media/i2c/s5c73m3/s5c73m3-core.c:1366:19: error: too few arguments to function 'gpiod_set_value'
1366 | int val = gpiod_set_value(gpio);
| ^~~~~~~~~~~~~~~
In file included from drivers/media/i2c/s5c73m3/s5c73m3-core.c:13:
include/linux/gpio/consumer.h:119:6: note: declared here
119 | void gpiod_set_value(struct gpio_desc *desc, int value);
| ^~~~~~~~~~~~~~~
vim +/gpiod_set_value +1359 drivers/media/i2c/s5c73m3/s5c73m3-core.c
1356
1357 static int s5c73m3_gpio_assert(struct gpio_desc *gpio)
1358 {
> 1359 int val = gpiod_set_value(gpio);
1360
1361 return s5c73m3_gpio_set_value(gpio, val);
1362 }
1363
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-04-29 7:01 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-29 0:15 [PATCH v2] media: s5c73m3: replace legacy gpio interface for gpiod Maíra Canal
2022-04-29 4:48 ` kernel test robot
2022-04-29 7:00 ` kernel test robot
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).