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misc: rk628: dsi: add color bar debugfs node

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enable dsi color bar
echo 1 > /sys/kernel/debug/rk628/2-0050/dsi_color_bar

disable dsi color bar
echo 0 > /sys/kernel/debug/rk628/2-0050/dsi_color_bar

Change-Id: Ib3eabeab685ab0f2ab9c5bcef8034117d7b513a7
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-12-06 02:31:13 +00:00
committed by Tao Huang
parent a5f5b21bec
commit f459a547f8
3 changed files with 75 additions and 6 deletions
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20
drivers/misc/rk628/rk628.c
View File

@@ -1215,6 +1215,18 @@ static int rk628_version_info(struct rk628 *rk628)
return ret;
}
static void rk628_debugfs_create(struct rk628 *rk628)
{
rk628->debug_dir = debugfs_create_dir(dev_name(rk628->dev), debugfs_lookup("rk628", NULL));
if (IS_ERR(rk628->debug_dir))
return;
/* path example: /sys/kernel/debug/rk628/2-0050/summary */
debugfs_create_file("summary", 0400, rk628->debug_dir, rk628,
&rk628_debugfs_summary_fops);
rk628_mipi_dsi_create_debugfs_file(rk628);
}
static int
rk628_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
@@ -1380,12 +1392,7 @@ rk628_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
pm_runtime_enable(dev);
rk628->debug_dir = debugfs_create_dir(dev_name(dev), debugfs_lookup("rk628", NULL));
if (IS_ERR(rk628->debug_dir))
return 0;
/* path example: /sys/kernel/debug/rk628/2-0050/summary */
debugfs_create_file("summary", 0400, rk628->debug_dir, rk628, &rk628_debugfs_summary_fops);
rk628_debugfs_create(rk628);
return 0;
@@ -1400,6 +1407,7 @@ static int rk628_i2c_remove(struct i2c_client *client)
struct device *dev = &client->dev;
debugfs_remove_recursive(rk628->debug_dir);
if (rk628_output_is_dsi(rk628)) {
cancel_delayed_work_sync(&rk628->dsi_delay_work);
destroy_workqueue(rk628->dsi_wq);

60
drivers/misc/rk628/rk628_dsi.c
View File

@@ -6,6 +6,7 @@
*/
#include <asm/unaligned.h>
#include <linux/debugfs.h>
#include "rk628.h"
#include "rk628_cru.h"
#include "rk628_dsi.h"
@@ -1223,6 +1224,65 @@ static void rk628_dsi_bridge_enable(struct rk628 *rk628,
dsi_write(rk628, dsi, DSI_PWR_UP, POWER_UP);
}
static int rk628_dsi_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/dsi_color_bar\n");
seq_puts(s, " Disable color bar:\n");
seq_puts(s, " example: echo 0 > /sys/kernel/debug/rk628/2-0050/dsi_color_bar\n");
return 0;
}
static int rk628_dsi_color_bar_open(struct inode *inode, struct file *file)
{
return single_open(file, rk628_dsi_color_bar_show, inode->i_private);
}
static ssize_t rk628_dsi_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;
struct rk628_dsi *dsi = &rk628->dsi0;
struct rk628_dsi *dsi1 = &rk628->dsi1;
u8 mode;
if (kstrtou8_from_user(ubuf, len, 0, &mode))
return -EFAULT;
dsi_update_bits(rk628, dsi, DSI_VID_MODE_CFG, VPG_EN, mode ? VPG_EN : 0);
if (!mode) {
dsi_write(rk628, dsi, DSI_PWR_UP, RESET);
dsi_write(rk628, dsi, DSI_PWR_UP, POWER_UP);
}
if (dsi->slave) {
dsi_update_bits(rk628, dsi1, DSI_VID_MODE_CFG, VPG_EN, mode ? VPG_EN : 0);
if (!mode) {
dsi_write(rk628, dsi1, DSI_PWR_UP, RESET);
dsi_write(rk628, dsi1, DSI_PWR_UP, POWER_UP);
}
}
return len;
}
static const struct file_operations rk628_dsi_color_bar_fops = {
.owner = THIS_MODULE,
.open = rk628_dsi_color_bar_open,
.read = seq_read,
.write = rk628_dsi_color_bar_write,
.llseek = seq_lseek,
.release = single_release,
};
void rk628_mipi_dsi_create_debugfs_file(struct rk628 *rk628)
{
if (rk628_output_is_dsi(rk628))
debugfs_create_file("dsi_color_bar", 0600, rk628->debug_dir,
rk628, &rk628_dsi_color_bar_fops);
}
void rk628_mipi_dsi_pre_enable(struct rk628 *rk628)
{
struct rk628_dsi *dsi = &rk628->dsi0;

1
drivers/misc/rk628/rk628_dsi.h
View File

@@ -155,4 +155,5 @@ int rk628_dsi_parse(struct rk628 *rk628, struct device_node *dsi_np);
void rk628_mipi_dsi_pre_enable(struct rk628 *rk628);
void rk628_mipi_dsi_enable(struct rk628 *rk628);
void rk628_dsi_disable(struct rk628 *rk628);
void rk628_mipi_dsi_create_debugfs_file(struct rk628 *rk628);
#endif