diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2020-09-02 12:23:40 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-12-03 12:27:31 +0100 |
| commit | 7d2f8ddaac2c1d938302022d40b057b5f31c4e9d (patch) | |
| tree | da4ec721e14cf72a88761b24b5e9c6259e6c33b3 /drivers/media | |
| parent | 2989a457171d2b1d457bd378450fe3909eb02623 (diff) | |
media: ccs: Make real to integer number conversion optional
The limit values will be raw soon, and the conversion takes place later
on. Prepare for that.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/i2c/ccs/ccs-reg-access.c | 35 | ||||
| -rw-r--r-- | drivers/media/i2c/ccs/ccs-reg-access.h | 2 |
2 files changed, 28 insertions, 9 deletions
diff --git a/drivers/media/i2c/ccs/ccs-reg-access.c b/drivers/media/i2c/ccs/ccs-reg-access.c index abec746f3c93..fe6112cba6be 100644 --- a/drivers/media/i2c/ccs/ccs-reg-access.c +++ b/drivers/media/i2c/ccs/ccs-reg-access.c @@ -143,14 +143,23 @@ unsigned int ccs_reg_width(u32 reg) return sizeof(uint8_t); } +u32 ccs_reg_conv(struct ccs_sensor *sensor, u32 reg, u32 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); + + if (reg & CCS_FL_FLOAT_IREAL) + val = float_to_u32_mul_1000000(client, val); + + return val; +} + /* * Read a 8/16/32-bit i2c register. The value is returned in 'val'. * Returns zero if successful, or non-zero otherwise. */ static int __ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val, - bool only8) + bool only8, bool conv) { - struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); unsigned int len = ccs_reg_width(reg); int rval; @@ -162,14 +171,16 @@ static int __ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val, if (rval < 0) return rval; - if (reg & CCS_FL_FLOAT_IREAL) - *val = float_to_u32_mul_1000000(client, *val); + if (!conv) + return 0; + + *val = ccs_reg_conv(sensor, reg, *val); return 0; } static int ccs_read_addr_raw(struct ccs_sensor *sensor, u32 reg, u32 *val, - bool force8, bool quirk) + bool force8, bool quirk, bool conv) { int rval; @@ -182,22 +193,28 @@ static int ccs_read_addr_raw(struct ccs_sensor *sensor, u32 reg, u32 *val, return rval; if (force8) - return __ccs_read_addr(sensor, reg, val, true); + return __ccs_read_addr(sensor, reg, val, true, conv); } return __ccs_read_addr(sensor, reg, val, ccs_needs_quirk(sensor, - CCS_QUIRK_FLAG_8BIT_READ_ONLY)); + CCS_QUIRK_FLAG_8BIT_READ_ONLY), + conv); } int ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val) { - return ccs_read_addr_raw(sensor, reg, val, false, true); + return ccs_read_addr_raw(sensor, reg, val, false, true, true); } int ccs_read_addr_8only(struct ccs_sensor *sensor, u32 reg, u32 *val) { - return ccs_read_addr_raw(sensor, reg, val, true, true); + return ccs_read_addr_raw(sensor, reg, val, true, true, true); +} + +int ccs_read_addr_noconv(struct ccs_sensor *sensor, u32 reg, u32 *val) +{ + return ccs_read_addr_raw(sensor, reg, val, false, true, false); } int ccs_write_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 val) diff --git a/drivers/media/i2c/ccs/ccs-reg-access.h b/drivers/media/i2c/ccs/ccs-reg-access.h index 9fdf5659ed09..5f6ff9c57698 100644 --- a/drivers/media/i2c/ccs/ccs-reg-access.h +++ b/drivers/media/i2c/ccs/ccs-reg-access.h @@ -24,10 +24,12 @@ struct ccs_sensor; int ccs_read_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 *val); int ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val); int ccs_read_addr_8only(struct ccs_sensor *sensor, u32 reg, u32 *val); +int ccs_read_addr_noconv(struct ccs_sensor *sensor, u32 reg, u32 *val); int ccs_write_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 val); int ccs_write_addr(struct ccs_sensor *sensor, u32 reg, u32 val); unsigned int ccs_reg_width(u32 reg); +u32 ccs_reg_conv(struct ccs_sensor *sensor, u32 reg, u32 val); #define ccs_read(sensor, reg_name, val) \ ccs_read_addr(sensor, CCS_R_##reg_name, val) |