admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

media: i2c: dw9719: Add DW9800K support

Browse Source 
The DW9800K is a similar part to the DW9719. The method for operation is
the same as the DW9719, but the register set is different. Add support
for this part to the existing dw9719 driver.

Tested on the Fairphone 5 smartphone.

Tested-by: Luca Weiss <luca.weiss@fairphone.com>
Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Griffin Kroah-Hartman
2025-10-16 13:35:23 +02:00
committed by Hans Verkuil
parent e470f1bb44
commit 083f7f0dce
1 changed files with 20 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/media/i2c/dw9719.c
View File

@@ -68,6 +68,9 @@
#define DW9761_VCM_PRELOAD CCI_REG8(8)
#define DW9761_DEFAULT_VCM_PRELOAD 0x73
#define DW9800K_DEFAULT_SAC 1
#define DW9800K_MODE_SAC_SHIFT 6
#define DW9800K_DEFAULT_VCM_FREQ 0x10
#define to_dw9719_device(x) container_of(x, struct dw9719_device, sd)
@@ -75,6 +78,7 @@ enum dw9719_model {
DW9718S,
DW9719,
DW9761,
DW9800K,
};
struct dw9719_device {
@@ -130,11 +134,18 @@ static int dw9719_power_up(struct dw9719_device *dw9719, bool detect)
cci_write(dw9719->regmap, reg_pwr, DW9719_STANDBY, &ret);
if (detect) {
/* This model does not have an INFO register */
if (dw9719->model == DW9718S) {
/* These models do not have an INFO register */
switch (dw9719->model) {
case DW9718S:
dw9719->sac_mode = DW9718S_DEFAULT_SAC;
dw9719->vcm_freq = DW9718S_DEFAULT_VCM_FREQ;
goto props;
case DW9800K:
dw9719->sac_mode = DW9800K_DEFAULT_SAC;
dw9719->vcm_freq = DW9800K_DEFAULT_VCM_FREQ;
goto props;
default:
break;
}
ret = cci_read(dw9719->regmap, DW9719_INFO, &val, NULL);
@@ -177,6 +188,12 @@ props:
}
switch (dw9719->model) {
case DW9800K:
cci_write(dw9719->regmap, DW9719_CONTROL, DW9719_ENABLE_RINGING, &ret);
cci_write(dw9719->regmap, DW9719_MODE,
dw9719->sac_mode << DW9800K_MODE_SAC_SHIFT, &ret);
cci_write(dw9719->regmap, DW9719_VCM_FREQ, dw9719->vcm_freq, &ret);
break;
case DW9718S:
/* Datasheet says [OCP/UVLO] should be disabled below 2.5V */
dw9719->sac_mode &= DW9718S_CONTROL_SAC_MASK;
@@ -426,6 +443,7 @@ static const struct of_device_id dw9719_of_table[] = {
{ .compatible = "dongwoon,dw9718s", .data = (const void *)DW9718S },
{ .compatible = "dongwoon,dw9719", .data = (const void *)DW9719 },
{ .compatible = "dongwoon,dw9761", .data = (const void *)DW9761 },
{ .compatible = "dongwoon,dw9800k", .data = (const void *)DW9800K },
{ }
};
MODULE_DEVICE_TABLE(of, dw9719_of_table);