tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

media: i2c: ak7375: Add support for ak7345

Browse Source 
Add support for ak7345 VCM, which has 9 bits position values,
longer power-up delay, and no known standby register setting.
Might be compatible as-is with ak7348.

Tested on msm8916-alcatel-idol347 phone.

Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Vincent Knecht
2023-12-01 19:13:50 +01:00
committed by Hans Verkuil
parent f8e004714a
commit df15385e67
1 changed files with 22 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/media/i2c/ak7375.c
+22 -4
View File
@@ -16,6 +16,7 @@ struct ak73xx_chipdef {
u8 shift_pos;
u8 mode_active;
u8 mode_standby;
bool has_standby; /* Some chips may not have standby mode */
u16 focus_pos_max;
/*
* This sets the minimum granularity for the focus positions.
@@ -37,12 +38,26 @@ struct ak73xx_chipdef {
u16 power_delay_us;
};
static const struct ak73xx_chipdef ak7345_cdef = {
.reg_position = 0x0,
.reg_cont = 0x2,
.shift_pos = 7, /* 9 bits position values, need to << 7 */
.mode_active = 0x0,
.has_standby = false,
.focus_pos_max = 511,
.focus_steps = 1,
.ctrl_steps = 16,
.ctrl_delay_us = 1000,
.power_delay_us = 20000,
};
static const struct ak73xx_chipdef ak7375_cdef = {
.reg_position = 0x0,
.reg_cont = 0x2,
.shift_pos = 4, /* 12 bits position values, need to << 4 */
.mode_active = 0x0,
.mode_standby = 0x40,
.has_standby = true,
.focus_pos_max = 4095,
.focus_steps = 1,
.ctrl_steps = 64,
@@ -249,10 +264,12 @@ static int __maybe_unused ak7375_vcm_suspend(struct device *dev)
usleep_range(cdef->ctrl_delay_us, cdef->ctrl_delay_us + 10);
}
ret = ak7375_i2c_write(ak7375_dev, cdef->reg_cont,
cdef->mode_standby, 1);
if (ret)
dev_err(dev, "%s I2C failure: %d\n", __func__, ret);
if (cdef->has_standby) {
ret = ak7375_i2c_write(ak7375_dev, cdef->reg_cont,
cdef->mode_standby, 1);
if (ret)
dev_err(dev, "%s I2C failure: %d\n", __func__, ret);
}
ret = regulator_bulk_disable(ARRAY_SIZE(ak7375_supply_names),
ak7375_dev->supplies);
@@ -312,6 +329,7 @@ static int __maybe_unused ak7375_vcm_resume(struct device *dev)
}
static const struct of_device_id ak7375_of_table[] = {
{ .compatible = "asahi-kasei,ak7345", .data = &ak7345_cdef, },
{ .compatible = "asahi-kasei,ak7375", .data = &ak7375_cdef, },
{ /* sentinel */ }
};