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media: i2c: imx258: Change register settings for variants of the sensor

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Sony have advised that there are variants of the IMX258 sensor which
require slightly different register configuration to the mainline
imx258 driver defaults.

There is no available run-time detection for the variant, so add
configuration via the DT compatible string.

The Vision Components imx258 module supports PDAF, so add the
register differences for that variant

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
This commit is contained in:
Dave Stevenson
2022-06-21 14:55:41 +01:00
committed by Dom Cobley
parent bd063fa787
commit c7813991f5
1 changed files with 51 additions and 13 deletions
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64
drivers/media/i2c/imx258.c
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@@ -320,8 +320,6 @@ static const struct imx258_reg mipi_642mbps_24mhz_4l[] = {
static const struct imx258_reg mode_4208x3120_regs[] = {
{ 0x3051, 0x00 },
{ 0x3052, 0x00 },
{ 0x4E21, 0x14 },
{ 0x6B11, 0xCF },
{ 0x7FF0, 0x08 },
{ 0x7FF1, 0x0F },
@@ -344,7 +342,6 @@ static const struct imx258_reg mode_4208x3120_regs[] = {
{ 0x7FA8, 0x03 },
{ 0x7FA9, 0xFE },
{ 0x7B24, 0x81 },
{ 0x7B25, 0x00 },
{ 0x6564, 0x07 },
{ 0x6B0D, 0x41 },
{ 0x653D, 0x04 },
@@ -432,8 +429,6 @@ static const struct imx258_reg mode_4208x3120_regs[] = {
static const struct imx258_reg mode_2104_1560_regs[] = {
{ 0x3051, 0x00 },
{ 0x3052, 0x00 },
{ 0x4E21, 0x14 },
{ 0x6B11, 0xCF },
{ 0x7FF0, 0x08 },
{ 0x7FF1, 0x0F },
@@ -456,7 +451,6 @@ static const struct imx258_reg mode_2104_1560_regs[] = {
{ 0x7FA8, 0x03 },
{ 0x7FA9, 0xFE },
{ 0x7B24, 0x81 },
{ 0x7B25, 0x00 },
{ 0x6564, 0x07 },
{ 0x6B0D, 0x41 },
{ 0x653D, 0x04 },
@@ -544,8 +538,6 @@ static const struct imx258_reg mode_2104_1560_regs[] = {
static const struct imx258_reg mode_1048_780_regs[] = {
{ 0x3051, 0x00 },
{ 0x3052, 0x00 },
{ 0x4E21, 0x14 },
{ 0x6B11, 0xCF },
{ 0x7FF0, 0x08 },
{ 0x7FF1, 0x0F },
@@ -568,7 +560,6 @@ static const struct imx258_reg mode_1048_780_regs[] = {
{ 0x7FA8, 0x03 },
{ 0x7FA9, 0xFE },
{ 0x7B24, 0x81 },
{ 0x7B25, 0x00 },
{ 0x6564, 0x07 },
{ 0x6B0D, 0x41 },
{ 0x653D, 0x04 },
@@ -654,6 +645,33 @@ static const struct imx258_reg mode_1048_780_regs[] = {
{ 0x0220, 0x00 },
};
struct imx258_variant_cfg {
const struct imx258_reg *regs;
unsigned int num_regs;
};
static const struct imx258_reg imx258_cfg_regs[] = {
{ 0x3052, 0x00 },
{ 0x4E21, 0x14 },
{ 0x7B25, 0x00 },
};
static const struct imx258_variant_cfg imx258_cfg = {
.regs = imx258_cfg_regs,
.num_regs = ARRAY_SIZE(imx258_cfg_regs),
};
static const struct imx258_reg imx258_pdaf_cfg_regs[] = {
{ 0x3052, 0x01 },
{ 0x4E21, 0x10 },
{ 0x7B25, 0x01 },
};
static const struct imx258_variant_cfg imx258_pdaf_cfg = {
.regs = imx258_pdaf_cfg_regs,
.num_regs = ARRAY_SIZE(imx258_pdaf_cfg_regs),
};
static const char * const imx258_test_pattern_menu[] = {
"Disabled",
"Solid Colour",
@@ -838,6 +856,8 @@ struct imx258 {
struct v4l2_subdev sd;
struct media_pad pad;
const struct imx258_variant_cfg *variant_cfg;
struct v4l2_ctrl_handler ctrl_handler;
/* V4L2 Controls */
struct v4l2_ctrl *link_freq;
@@ -1318,6 +1338,14 @@ static int imx258_start_streaming(struct imx258 *imx258)
return ret;
}
ret = imx258_write_regs(imx258, imx258->variant_cfg->regs,
imx258->variant_cfg->num_regs);
if (ret) {
dev_err(&client->dev, "%s failed to set variant config\n",
__func__);
return ret;
}
ret = imx258_write_reg(imx258, IMX258_CLK_BLANK_STOP,
IMX258_REG_VALUE_08BIT,
imx258->csi2_flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK ?
@@ -1631,6 +1659,12 @@ static int imx258_get_regulators(struct imx258 *imx258,
imx258->supplies);
}
static const struct of_device_id imx258_dt_ids[] = {
{ .compatible = "sony,imx258", .data = &imx258_cfg },
{ .compatible = "sony,imx258-pdaf", .data = &imx258_pdaf_cfg },
{ /* sentinel */ }
};
static int imx258_probe(struct i2c_client *client)
{
struct imx258 *imx258;
@@ -1638,6 +1672,7 @@ static int imx258_probe(struct i2c_client *client)
struct v4l2_fwnode_endpoint ep = {
.bus_type = V4L2_MBUS_CSI2_DPHY
};
const struct of_device_id *match;
int ret;
u32 val = 0;
@@ -1713,6 +1748,13 @@ static int imx258_probe(struct i2c_client *client)
imx258->csi2_flags = ep.bus.mipi_csi2.flags;
match = i2c_of_match_device(imx258_dt_ids, client);
if (!match || !match->data)
imx258->variant_cfg = &imx258_cfg;
else
imx258->variant_cfg =
(const struct imx258_variant_cfg *)match->data;
/* Initialize subdev */
v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops);
@@ -1798,10 +1840,6 @@ static const struct acpi_device_id imx258_acpi_ids[] = {
MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids);
#endif
static const struct of_device_id imx258_dt_ids[] = {
{ .compatible = "sony,imx258" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx258_dt_ids);
static struct i2c_driver imx258_i2c_driver = {