2024-05-21 15:35:10

by Barnabás Czémán

[permalink] [raw]
Subject: [PATCH 0/3] Add support for more stk3311 variant

This patch series remove probe failing when a compatible variant's chip id is not
defined in the driver like stk3311-a and make chip id additions easier.
It adds stk3311-a and stk3311-s34 chip ids.

I have tested stk3311-a in Xiaomi Redmi S2 (ysl) and Xiaom Redmi 5
(rosy),
it has 0x15 as chip id.

stk3311-s34 chip id comes from this thread it should be compatible with
this driver:
https://lore.kernel.org/linux-iio/[email protected]/

Signed-off-by: Barnabás Czémán <[email protected]>
---
Barnabás Czémán (3):
iio: light: stk3310: relax failure to match id
iio: light: stk3310: make chip id check expandable
iio: light: stk3310: support more stk3311 variants

drivers/iio/light/stk3310.c | 31 ++++++++++++++++++++++++-------
1 file changed, 24 insertions(+), 7 deletions(-)
---
base-commit: 124cfbcd6d185d4f50be02d5f5afe61578916773
change-id: 20240521-stk3311-2ee6ddafb970

Best regards,
--
Barnabás Czémán <[email protected]>



2024-05-21 15:35:16

by Barnabás Czémán

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Subject: [PATCH 1/3] iio: light: stk3310: relax failure to match id

Relax failure to match ID to a warning rather than probe fail.
This add abilty to use other compatible variants when chip id
is not defined in the driver.

Signed-off-by: Barnabás Czémán <[email protected]>
---
drivers/iio/light/stk3310.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 08d471438175..7cae261541c6 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -477,8 +477,7 @@ static int stk3310_init(struct iio_dev *indio_dev)
chipid != STK3311_CHIP_ID_VAL &&
chipid != STK3311X_CHIP_ID_VAL &&
chipid != STK3335_CHIP_ID_VAL) {
- dev_err(&client->dev, "invalid chip id: 0x%x\n", chipid);
- return -ENODEV;
+ dev_warn(&client->dev, "unknown chip id: 0x%x\n", chipid);
}

state = STK3310_STATE_EN_ALS | STK3310_STATE_EN_PS;

--
2.45.1


2024-05-21 15:35:38

by Barnabás Czémán

[permalink] [raw]
Subject: [PATCH 2/3] iio: light: stk3310: make chip id check expandable

Modify chip id check for support easier additions
for compatible variants.

Signed-off-by: Barnabás Czémán <[email protected]>
---
drivers/iio/light/stk3310.c | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 7cae261541c6..5b3fe98af9c9 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -81,6 +81,13 @@ static const struct reg_field stk3310_reg_field_flag_psint =
static const struct reg_field stk3310_reg_field_flag_nf =
REG_FIELD(STK3310_REG_FLAG, 0, 0);

+static const u8 stk3310_chip_ids[] = {
+ STK3310_CHIP_ID_VAL,
+ STK3311X_CHIP_ID_VAL,
+ STK3311_CHIP_ID_VAL,
+ STK3335_CHIP_ID_VAL,
+};
+
/* Estimate maximum proximity values with regard to measurement scale. */
static const int stk3310_ps_max[4] = {
STK3310_PS_MAX_VAL / 640,
@@ -197,6 +204,16 @@ static const struct attribute_group stk3310_attribute_group = {
.attrs = stk3310_attributes
};

+static int stk3310_check_chip_id(const u8 chip_id)
+{
+ for (int i = 0; i < ARRAY_SIZE(stk3310_chip_ids); i++) {
+ if (chip_id == stk3310_chip_ids[i])
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
static int stk3310_get_index(const int table[][2], int table_size,
int val, int val2)
{
@@ -473,12 +490,9 @@ static int stk3310_init(struct iio_dev *indio_dev)
if (ret < 0)
return ret;

- if (chipid != STK3310_CHIP_ID_VAL &&
- chipid != STK3311_CHIP_ID_VAL &&
- chipid != STK3311X_CHIP_ID_VAL &&
- chipid != STK3335_CHIP_ID_VAL) {
+ ret = stk3310_check_chip_id(chipid);
+ if (ret < 0)
dev_warn(&client->dev, "unknown chip id: 0x%x\n", chipid);
- }

state = STK3310_STATE_EN_ALS | STK3310_STATE_EN_PS;
ret = stk3310_set_state(data, state);

--
2.45.1


2024-05-21 15:35:45

by Barnabás Czémán

[permalink] [raw]
Subject: [PATCH 3/3] iio: light: stk3310: support more stk3311 variants

Add support for more stk3311 variants like stk3311-a
and stk3311-s34, they are register compatible but they
have different chip ids.

Signed-off-by: Barnabás Czémán <[email protected]>
---
drivers/iio/light/stk3310.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 5b3fe98af9c9..2905c9feff1a 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -37,6 +37,8 @@

#define STK3310_CHIP_ID_VAL 0x13
#define STK3311_CHIP_ID_VAL 0x1D
+#define STK3311A_CHIP_ID_VAL 0x15
+#define STK3311S34_CHIP_ID_VAL 0x1E
#define STK3311X_CHIP_ID_VAL 0x12
#define STK3335_CHIP_ID_VAL 0x51
#define STK3310_PSINT_EN 0x01
@@ -83,6 +85,8 @@ static const struct reg_field stk3310_reg_field_flag_nf =

static const u8 stk3310_chip_ids[] = {
STK3310_CHIP_ID_VAL,
+ STK3311A_CHIP_ID_VAL,
+ STK3311S34_CHIP_ID_VAL,
STK3311X_CHIP_ID_VAL,
STK3311_CHIP_ID_VAL,
STK3335_CHIP_ID_VAL,

--
2.45.1


2024-05-25 16:50:19

by Jonathan Cameron

[permalink] [raw]
Subject: Re: [PATCH 0/3] Add support for more stk3311 variant

On Tue, 21 May 2024 17:34:50 +0200
Barnabás Czémán <[email protected]> wrote:

> This patch series remove probe failing when a compatible variant's chip id is not
> defined in the driver like stk3311-a and make chip id additions easier.
> It adds stk3311-a and stk3311-s34 chip ids.
>
> I have tested stk3311-a in Xiaomi Redmi S2 (ysl) and Xiaom Redmi 5
> (rosy),
> it has 0x15 as chip id.
>
> stk3311-s34 chip id comes from this thread it should be compatible with
> this driver:
> https://lore.kernel.org/linux-iio/[email protected]/
>
> Signed-off-by: Barnabás Czémán <[email protected]>
Nice small and well presented series. Thanks!

Applied to the togreg branch of iio.git. Note I'll rebase that on rc1 in a day
or two and it will initially just be pushed out a testing for 0-day to
see if it can find anythign we missed.

Thanks,

Jonathan

> ---
> Barnabás Czémán (3):
> iio: light: stk3310: relax failure to match id
> iio: light: stk3310: make chip id check expandable
> iio: light: stk3310: support more stk3311 variants
>
> drivers/iio/light/stk3310.c | 31 ++++++++++++++++++++++++-------
> 1 file changed, 24 insertions(+), 7 deletions(-)
> ---
> base-commit: 124cfbcd6d185d4f50be02d5f5afe61578916773
> change-id: 20240521-stk3311-2ee6ddafb970
>
> Best regards,