On Thu Oct 16 13:35:23 2025 +0200, Griffin Kroah-Hartman wrote:
> 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 <[email protected]>
> Signed-off-by: Griffin Kroah-Hartman <[email protected]>
> Signed-off-by: Sakari Ailus <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/i2c/dw9719.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/i2c/dw9719.c b/drivers/media/i2c/dw9719.c
index 3627e78b8b66..59558335989e 100644
--- a/drivers/media/i2c/dw9719.c
+++ b/drivers/media/i2c/dw9719.c
@@ -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);
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