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misc: rk628: gvi: add color_bar debugfs node

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Enable color bar
echo 1 > /sys/kernel/debug/rk628/2-0050/gvi_color_bar

Disable color bar
echo 0 > /sys/kernel/debug/rk628/2-0050/gvi_color_bar

Change-Id: Ieb12d4160a90f27f505aa9c537b9005e35aa7c41
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-12-06 05:50:16 +00:00
committed by Tao Huang
parent 92f7012d3c
commit 9fe9c3f878
3 changed files with 47 additions and 1 deletions
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1
drivers/misc/rk628/rk628.c
View File

@@ -1227,6 +1227,7 @@ static void rk628_debugfs_create(struct rk628 *rk628)
rk628_post_process_create_debugfs_file(rk628);
rk628_mipi_dsi_create_debugfs_file(rk628);
rk628_gvi_create_debugfs_file(rk628);
}
static int

45
drivers/misc/rk628/rk628_gvi.c
View File

@@ -5,6 +5,7 @@
* Author: Guochun Huang <hero.huang@rock-chips.com>
*/
#include <linux/debugfs.h>
#include "linux/printk.h"
#include "rk628.h"
#include "rk628_config.h"
@@ -186,6 +187,50 @@ static void rk628_gvi_enable_color_bar(struct rk628 *rk628,
rk628_i2c_update_bits(rk628, GVI_COLOR_BAR_CTRL, COLOR_BAR_EN, 0);
}
static int rk628_gvi_color_bar_show(struct seq_file *s, void *data)
{
seq_puts(s, " Enable color bar:\n");
seq_puts(s, " example: echo 1 > /sys/kernel/debug/rk628/2-0050/gvi_color_bar\n");
seq_puts(s, " Disable color bar:\n");
seq_puts(s, " example: echo 0 > /sys/kernel/debug/rk628/2-0050/gvi_color_bar\n");
return 0;
}
static int rk628_gvi_color_bar_open(struct inode *inode, struct file *file)
{
return single_open(file, rk628_gvi_color_bar_show, inode->i_private);
}
static ssize_t rk628_gvi_color_bar_write(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct rk628 *rk628 = ((struct seq_file *)file->private_data)->private;
u8 mode;
if (kstrtou8_from_user(ubuf, len, 0, &mode))
return -EFAULT;
rk628_i2c_update_bits(rk628, GVI_COLOR_BAR_CTRL, COLOR_BAR_EN, mode ? 1 : 0);
return len;
}
static const struct file_operations rk628_gvi_color_bar_fops = {
.owner = THIS_MODULE,
.open = rk628_gvi_color_bar_open,
.read = seq_read,
.write = rk628_gvi_color_bar_write,
.llseek = seq_lseek,
.release = single_release,
};
void rk628_gvi_create_debugfs_file(struct rk628 *rk628)
{
if (rk628_output_is_gvi(rk628))
debugfs_create_file("gvi_color_bar", 0600, rk628->debug_dir,
rk628, &rk628_gvi_color_bar_fops);
}
static void rk628_gvi_post_enable(struct rk628 *rk628, struct rk628_gvi *gvi)
{

2
drivers/misc/rk628/rk628_gvi.h
View File

@@ -214,5 +214,5 @@
int rk628_gvi_parse(struct rk628 *rk628, struct device_node *gvi_np);
void rk628_gvi_enable(struct rk628 *rk628);
void rk628_gvi_disable(struct rk628 *rk628);
void rk628_gvi_create_debugfs_file(struct rk628 *rk628);
#endif