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platform/x86: pmc_atom: introduce DEFINE_SHOW_ATTRIBUTE() macro 

This macro deduplicates a lot of similar code in the pmc_atom.c module.
Targeting to be moved to seq_file.h eventually.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
hifive-unleashed-5.1
Andy Shevchenko 2017-12-19 16:29:07 +02:00
parent f1905b980f
commit 1ea74a560c
1 changed files with 20 additions and 36 deletions
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56
drivers/platform/x86/pmc_atom.c
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@ -208,6 +208,20 @@ static const struct pmc_data cht_data = {
.clks = cht_clks,
};
#define DEFINE_SHOW_ATTRIBUTE(__name) \
static int __name ## _open(struct inode *inode, struct file *file) \
{ \
return single_open(file, __name ## _show, inode->i_private); \
} \
\
static const struct file_operations __name ## _fops = { \
.owner = THIS_MODULE, \
.open = __name ## _open, \
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
}
static inline u32 pmc_reg_read(struct pmc_dev *pmc, int reg_offset)
{
return readl(pmc->regmap + reg_offset);
@ -309,17 +323,7 @@ static int pmc_dev_state_show(struct seq_file *s, void *unused)
return 0;
}
static int pmc_dev_state_open(struct inode *inode, struct file *file)
{
return single_open(file, pmc_dev_state_show, inode->i_private);
}
static const struct file_operations pmc_dev_state_ops = {
.open = pmc_dev_state_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(pmc_dev_state);
static int pmc_pss_state_show(struct seq_file *s, void *unused)
{
@ -336,17 +340,7 @@ static int pmc_pss_state_show(struct seq_file *s, void *unused)
return 0;
}
static int pmc_pss_state_open(struct inode *inode, struct file *file)
{
return single_open(file, pmc_pss_state_show, inode->i_private);
}
static const struct file_operations pmc_pss_state_ops = {
.open = pmc_pss_state_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(pmc_pss_state);
static int pmc_sleep_tmr_show(struct seq_file *s, void *unused)
{
@ -367,17 +361,7 @@ static int pmc_sleep_tmr_show(struct seq_file *s, void *unused)
return 0;
}
static int pmc_sleep_tmr_open(struct inode *inode, struct file *file)
{
return single_open(file, pmc_sleep_tmr_show, inode->i_private);
}
static const struct file_operations pmc_sleep_tmr_ops = {
.open = pmc_sleep_tmr_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(pmc_sleep_tmr);
static void pmc_dbgfs_unregister(struct pmc_dev *pmc)
{
@ -395,17 +379,17 @@ static int pmc_dbgfs_register(struct pmc_dev *pmc)
pmc->dbgfs_dir = dir;
f = debugfs_create_file("dev_state", S_IFREG | S_IRUGO,
dir, pmc, &pmc_dev_state_ops);
dir, pmc, &pmc_dev_state_fops);
if (!f)
goto err;
f = debugfs_create_file("pss_state", S_IFREG | S_IRUGO,
dir, pmc, &pmc_pss_state_ops);
dir, pmc, &pmc_pss_state_fops);
if (!f)
goto err;
f = debugfs_create_file("sleep_state", S_IFREG | S_IRUGO,
dir, pmc, &pmc_sleep_tmr_ops);
dir, pmc, &pmc_sleep_tmr_fops);
if (!f)
goto err;