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Date: Wed, 30 May 2018 09:04:13 -0700
From: Gwendal Grignou <gwendal@...omium.org>
To: bleung@...omium.org, eballetbo@...il.com, lee.jones@...aro.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH v2] platform/chrome: Use to_cros_ec_dev more broadly
Move to_cros_ec_dev macro to cros_ec.h and use it when the private ec
object is needed from device object.
Signed-off-by: Gwendal Grignou <gwendal@...omium.org>
---
Change since v1:
Remove changes in cros_ec_dev.c to avoid inter-dependencies.
drivers/platform/chrome/cros_ec_lightbar.c | 21 +++++++--------------
drivers/platform/chrome/cros_ec_sysfs.c | 2 --
drivers/platform/chrome/cros_ec_vbc.c | 9 +++------
include/linux/mfd/cros_ec.h | 2 ++
4 files changed, 12 insertions(+), 22 deletions(-)
diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c
index 6ea79d495aa2..68193bb53383 100644
--- a/drivers/platform/chrome/cros_ec_lightbar.c
+++ b/drivers/platform/chrome/cros_ec_lightbar.c
@@ -170,8 +170,7 @@ static ssize_t version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
uint32_t version = 0, flags = 0;
- struct cros_ec_dev *ec = container_of(dev,
- struct cros_ec_dev, class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
int ret;
ret = lb_throttle();
@@ -193,8 +192,7 @@ static ssize_t brightness_store(struct device *dev,
struct cros_ec_command *msg;
int ret;
unsigned int val;
- struct cros_ec_dev *ec = container_of(dev,
- struct cros_ec_dev, class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
if (kstrtouint(buf, 0, &val))
return -EINVAL;
@@ -238,8 +236,7 @@ static ssize_t led_rgb_store(struct device *dev, struct device_attribute *attr,
{
struct ec_params_lightbar *param;
struct cros_ec_command *msg;
- struct cros_ec_dev *ec = container_of(dev,
- struct cros_ec_dev, class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
unsigned int val[4];
int ret, i = 0, j = 0, ok = 0;
@@ -311,8 +308,7 @@ static ssize_t sequence_show(struct device *dev,
struct ec_response_lightbar *resp;
struct cros_ec_command *msg;
int ret;
- struct cros_ec_dev *ec = container_of(dev,
- struct cros_ec_dev, class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
msg = alloc_lightbar_cmd_msg(ec);
if (!msg)
@@ -439,8 +435,7 @@ static ssize_t sequence_store(struct device *dev, struct device_attribute *attr,
struct cros_ec_command *msg;
unsigned int num;
int ret, len;
- struct cros_ec_dev *ec = container_of(dev,
- struct cros_ec_dev, class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
for (len = 0; len < count; len++)
if (!isalnum(buf[len]))
@@ -488,8 +483,7 @@ static ssize_t program_store(struct device *dev, struct device_attribute *attr,
int extra_bytes, max_size, ret;
struct ec_params_lightbar *param;
struct cros_ec_command *msg;
- struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev,
- class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
/*
* We might need to reject the program for size reasons. The EC
@@ -599,8 +593,7 @@ static umode_t cros_ec_lightbar_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct cros_ec_dev *ec = container_of(dev,
- struct cros_ec_dev, class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
struct platform_device *pdev = to_platform_device(ec->dev);
struct cros_ec_platform *pdata = pdev->dev.platform_data;
int is_cros_ec;
diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c
index 5a6db3fe213a..f34a50121064 100644
--- a/drivers/platform/chrome/cros_ec_sysfs.c
+++ b/drivers/platform/chrome/cros_ec_sysfs.c
@@ -34,8 +34,6 @@
#include <linux/types.h>
#include <linux/uaccess.h>
-#define to_cros_ec_dev(dev) container_of(dev, struct cros_ec_dev, class_dev)
-
/* Accessor functions */
static ssize_t reboot_show(struct device *dev,
diff --git a/drivers/platform/chrome/cros_ec_vbc.c b/drivers/platform/chrome/cros_ec_vbc.c
index 6d38e6b08334..5356f26bc022 100644
--- a/drivers/platform/chrome/cros_ec_vbc.c
+++ b/drivers/platform/chrome/cros_ec_vbc.c
@@ -29,8 +29,7 @@ static ssize_t vboot_context_read(struct file *filp, struct kobject *kobj,
loff_t pos, size_t count)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev,
- class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
struct cros_ec_device *ecdev = ec->ec_dev;
struct ec_params_vbnvcontext *params;
struct cros_ec_command *msg;
@@ -70,8 +69,7 @@ static ssize_t vboot_context_write(struct file *filp, struct kobject *kobj,
loff_t pos, size_t count)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev,
- class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
struct cros_ec_device *ecdev = ec->ec_dev;
struct ec_params_vbnvcontext *params;
struct cros_ec_command *msg;
@@ -111,8 +109,7 @@ static umode_t cros_ec_vbc_is_visible(struct kobject *kobj,
struct bin_attribute *a, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev,
- class_dev);
+ struct cros_ec_dev *ec = to_cros_ec_dev(dev);
struct device_node *np = ec->ec_dev->dev->of_node;
if (IS_ENABLED(CONFIG_OF) && np) {
diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h
index 4ff0cec979b0..4270972adb94 100644
--- a/include/linux/mfd/cros_ec.h
+++ b/include/linux/mfd/cros_ec.h
@@ -197,6 +197,8 @@ struct cros_ec_dev {
u32 features[2];
};
+#define to_cros_ec_dev(dev) container_of(dev, struct cros_ec_dev, class_dev)
+
/**
* cros_ec_suspend - Handle a suspend operation for the ChromeOS EC device
*
--
2.17.0.921.gf22659ad46-goog
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