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path: root/drivers/media/i2c/smiapp/smiapp-core.c
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Diffstat (limited to 'drivers/media/i2c/smiapp/smiapp-core.c')
-rw-r--r--drivers/media/i2c/smiapp/smiapp-core.c183
1 files changed, 83 insertions, 100 deletions
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index e08e588ad24..06fb03291d5 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -4,7 +4,7 @@
* Generic driver for SMIA/SMIA++ compliant camera modules
*
* Copyright (C) 2010--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
*
* Based on smiapp driver by Vimarsh Zutshi
* Based on jt8ev1.c by Vimarsh Zutshi
@@ -252,23 +252,23 @@ static int smiapp_pll_update(struct smiapp_sensor *sensor)
.min_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ],
.max_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ],
- .min_op_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV],
- .max_op_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV],
- .min_op_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV],
- .max_op_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV],
- .min_op_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ],
- .max_op_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ],
- .min_op_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ],
- .max_op_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ],
-
- .min_vt_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV],
- .max_vt_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV],
- .min_vt_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV],
- .max_vt_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV],
- .min_vt_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ],
- .max_vt_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ],
- .min_vt_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ],
- .max_vt_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ],
+ .op.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV],
+ .op.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV],
+ .op.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV],
+ .op.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV],
+ .op.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ],
+ .op.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ],
+ .op.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ],
+ .op.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ],
+
+ .vt.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV],
+ .vt.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV],
+ .vt.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV],
+ .vt.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV],
+ .vt.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ],
+ .vt.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ],
+ .vt.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ],
+ .vt.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ],
.min_line_length_pck_bin = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN],
.min_line_length_pck = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK],
@@ -276,11 +276,6 @@ static int smiapp_pll_update(struct smiapp_sensor *sensor)
struct smiapp_pll *pll = &sensor->pll;
int rval;
- memset(&sensor->pll, 0, sizeof(sensor->pll));
-
- pll->lanes = sensor->platform_data->lanes;
- pll->ext_clk_freq_hz = sensor->platform_data->ext_clk;
-
if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0) {
/*
* Fill in operational clock divisors limits from the
@@ -288,28 +283,14 @@ static int smiapp_pll_update(struct smiapp_sensor *sensor)
* requirements regarding them are essentially the
* same as on VT ones.
*/
- lim.min_op_sys_clk_div = lim.min_vt_sys_clk_div;
- lim.max_op_sys_clk_div = lim.max_vt_sys_clk_div;
- lim.min_op_pix_clk_div = lim.min_vt_pix_clk_div;
- lim.max_op_pix_clk_div = lim.max_vt_pix_clk_div;
- lim.min_op_sys_clk_freq_hz = lim.min_vt_sys_clk_freq_hz;
- lim.max_op_sys_clk_freq_hz = lim.max_vt_sys_clk_freq_hz;
- lim.min_op_pix_clk_freq_hz = lim.min_vt_pix_clk_freq_hz;
- lim.max_op_pix_clk_freq_hz = lim.max_vt_pix_clk_freq_hz;
- /* Profile 0 sensors have no separate OP clock branch. */
- pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS;
+ lim.op = lim.vt;
}
- if (smiapp_needs_quirk(sensor,
- SMIAPP_QUIRK_FLAG_OP_PIX_CLOCK_PER_LANE))
- pll->flags |= SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE;
-
pll->binning_horizontal = sensor->binning_horizontal;
pll->binning_vertical = sensor->binning_vertical;
pll->link_freq =
sensor->link_freq->qmenu_int[sensor->link_freq->val];
pll->scale_m = sensor->scale_m;
- pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN];
pll->bits_per_pixel = sensor->csi_format->compressed;
rval = smiapp_pll_calculate(&client->dev, &lim, pll);
@@ -418,7 +399,6 @@ static void smiapp_update_mbus_formats(struct smiapp_sensor *sensor)
BUG_ON(max(internal_csi_format_idx, csi_format_idx) + pixel_order
>= ARRAY_SIZE(smiapp_csi_data_formats));
- BUG_ON(min(internal_csi_format_idx, csi_format_idx) < 0);
dev_dbg(&client->dev, "new pixel order %s\n",
pixel_order_str[pixel_order]);
@@ -626,7 +606,7 @@ static int smiapp_get_limits(struct smiapp_sensor *sensor, int const *limit,
if (rval)
return rval;
sensor->limits[limit[i]] = val;
- dev_dbg(&client->dev, "0x%8.8x \"%s\" = %d, 0x%x\n",
+ dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n",
smiapp_reg_limits[limit[i]].addr,
smiapp_reg_limits[limit[i]].what, val, val);
}
@@ -761,8 +741,8 @@ static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor)
if (rval)
return rval;
- dev_dbg(&client->dev, "bpp %d, compressed %d\n",
- fmt >> 8, (u8)fmt);
+ dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n",
+ i, fmt >> 8, (u8)fmt);
for (j = 0; j < ARRAY_SIZE(smiapp_csi_data_formats); j++) {
const struct smiapp_csi_data_format *f =
@@ -1010,7 +990,7 @@ static int smiapp_setup_flash_strobe(struct smiapp_sensor *sensor)
* do not change, or if you do at least know what you're
* doing. :-)
*
- * Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> 2010-10-25
+ * Sakari Ailus <sakari.ailus@iki.fi> 2010-10-25
*
* flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl
* / EXTCLK freq [Hz]) * flash_strobe_adjustment
@@ -1141,14 +1121,14 @@ static int smiapp_power_on(struct smiapp_sensor *sensor)
rval = sensor->platform_data->set_xclk(
&sensor->src->sd, sensor->platform_data->ext_clk);
else
- rval = clk_enable(sensor->ext_clk);
+ rval = clk_prepare_enable(sensor->ext_clk);
if (rval < 0) {
- dev_dbg(&client->dev, "failed to set xclk\n");
+ dev_dbg(&client->dev, "failed to enable xclk\n");
goto out_xclk_fail;
}
usleep_range(1000, 1000);
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN)
+ if (gpio_is_valid(sensor->platform_data->xshutdown))
gpio_set_value(sensor->platform_data->xshutdown, 1);
sleep = SMIAPP_RESET_DELAY(sensor->platform_data->ext_clk);
@@ -1258,12 +1238,12 @@ static int smiapp_power_on(struct smiapp_sensor *sensor)
return 0;
out_cci_addr_fail:
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN)
+ if (gpio_is_valid(sensor->platform_data->xshutdown))
gpio_set_value(sensor->platform_data->xshutdown, 0);
if (sensor->platform_data->set_xclk)
sensor->platform_data->set_xclk(&sensor->src->sd, 0);
else
- clk_disable(sensor->ext_clk);
+ clk_disable_unprepare(sensor->ext_clk);
out_xclk_fail:
regulator_disable(sensor->vana);
@@ -1284,12 +1264,12 @@ static void smiapp_power_off(struct smiapp_sensor *sensor)
SMIAPP_REG_U8_SOFTWARE_RESET,
SMIAPP_SOFTWARE_RESET);
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN)
+ if (gpio_is_valid(sensor->platform_data->xshutdown))
gpio_set_value(sensor->platform_data->xshutdown, 0);
if (sensor->platform_data->set_xclk)
sensor->platform_data->set_xclk(&sensor->src->sd, 0);
else
- clk_disable(sensor->ext_clk);
+ clk_disable_unprepare(sensor->ext_clk);
usleep_range(5000, 5000);
regulator_disable(sensor->vana);
sensor->streaming = 0;
@@ -1786,7 +1766,7 @@ static void smiapp_set_compose_binner(struct v4l2_subdev *subdev,
struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
unsigned int i;
unsigned int binh = 1, binv = 1;
- unsigned int best = scaling_goodness(
+ int best = scaling_goodness(
subdev,
crops[SMIAPP_PAD_SINK]->width, sel->r.width,
crops[SMIAPP_PAD_SINK]->height, sel->r.height, sel->flags);
@@ -1854,12 +1834,12 @@ static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
* sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN]
/ sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE];
- a = min(sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX],
- max(a, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN]));
- b = min(sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX],
- max(b, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN]));
- max_m = min(sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX],
- max(max_m, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN]));
+ a = clamp(a, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN],
+ sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]);
+ b = clamp(b, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN],
+ sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]);
+ max_m = clamp(max_m, sensor->limits[SMIAPP_LIMIT_SCALER_M_MIN],
+ sensor->limits[SMIAPP_LIMIT_SCALER_M_MAX]);
dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m);
@@ -2047,8 +2027,8 @@ static int smiapp_set_crop(struct v4l2_subdev *subdev,
sel->r.width = min(sel->r.width, src_size->width);
sel->r.height = min(sel->r.height, src_size->height);
- sel->r.left = min(sel->r.left, src_size->width - sel->r.width);
- sel->r.top = min(sel->r.top, src_size->height - sel->r.height);
+ sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width);
+ sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height);
*crops[sel->pad] = sel->r;
@@ -2140,8 +2120,8 @@ static int smiapp_set_selection(struct v4l2_subdev *subdev,
sel->r.left = max(0, sel->r.left & ~1);
sel->r.top = max(0, sel->r.top & ~1);
- sel->r.width = max(0, SMIAPP_ALIGN_DIM(sel->r.width, sel->flags));
- sel->r.height = max(0, SMIAPP_ALIGN_DIM(sel->r.height, sel->flags));
+ sel->r.width = SMIAPP_ALIGN_DIM(sel->r.width, sel->flags);
+ sel->r.height = SMIAPP_ALIGN_DIM(sel->r.height, sel->flags);
sel->r.width = max_t(unsigned int,
sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE],
@@ -2369,52 +2349,50 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
{
struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
struct i2c_client *client = v4l2_get_subdevdata(subdev);
+ struct smiapp_pll *pll = &sensor->pll;
struct smiapp_subdev *last = NULL;
u32 tmp;
unsigned int i;
int rval;
- sensor->vana = devm_regulator_get(&client->dev, "VANA");
+ sensor->vana = devm_regulator_get(&client->dev, "vana");
if (IS_ERR(sensor->vana)) {
dev_err(&client->dev, "could not get regulator for vana\n");
- return -ENODEV;
+ return PTR_ERR(sensor->vana);
}
if (!sensor->platform_data->set_xclk) {
- sensor->ext_clk = devm_clk_get(&client->dev,
- sensor->platform_data->ext_clk_name);
+ sensor->ext_clk = devm_clk_get(&client->dev, "ext_clk");
if (IS_ERR(sensor->ext_clk)) {
- dev_err(&client->dev, "could not get clock %s\n",
- sensor->platform_data->ext_clk_name);
- return -ENODEV;
+ dev_err(&client->dev, "could not get clock\n");
+ return PTR_ERR(sensor->ext_clk);
}
rval = clk_set_rate(sensor->ext_clk,
sensor->platform_data->ext_clk);
if (rval < 0) {
dev_err(&client->dev,
- "unable to set clock %s freq to %u\n",
- sensor->platform_data->ext_clk_name,
+ "unable to set clock freq to %u\n",
sensor->platform_data->ext_clk);
- return -ENODEV;
+ return rval;
}
}
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN) {
- if (gpio_request_one(sensor->platform_data->xshutdown, 0,
- "SMIA++ xshutdown") != 0) {
+ if (gpio_is_valid(sensor->platform_data->xshutdown)) {
+ rval = devm_gpio_request_one(
+ &client->dev, sensor->platform_data->xshutdown, 0,
+ "SMIA++ xshutdown");
+ if (rval < 0) {
dev_err(&client->dev,
"unable to acquire reset gpio %d\n",
sensor->platform_data->xshutdown);
- return -ENODEV;
+ return rval;
}
}
rval = smiapp_power_on(sensor);
- if (rval) {
- rval = -ENODEV;
- goto out_smiapp_power_on;
- }
+ if (rval)
+ return -ENODEV;
rval = smiapp_identify_module(subdev);
if (rval) {
@@ -2446,6 +2424,12 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
sensor->hvflip_inv_mask = SMIAPP_IMAGE_ORIENTATION_HFLIP |
SMIAPP_IMAGE_ORIENTATION_VFLIP;
+ rval = smiapp_call_quirk(sensor, limits);
+ if (rval) {
+ dev_err(&client->dev, "limits quirks failed\n");
+ goto out_power_off;
+ }
+
rval = smiapp_get_mbus_formats(sensor);
if (rval) {
rval = -ENODEV;
@@ -2506,12 +2490,6 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
}
}
- rval = smiapp_call_quirk(sensor, limits);
- if (rval) {
- dev_err(&client->dev, "limits quirks failed\n");
- goto out_nvm_release;
- }
-
/* We consider this as profile 0 sensor if any of these are zero. */
if (!sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV] ||
!sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV] ||
@@ -2566,8 +2544,9 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
}
snprintf(this->sd.name,
- sizeof(this->sd.name), "%s %s",
- sensor->minfo.name, _this->name);
+ sizeof(this->sd.name), "%s %d-%4.4x %s",
+ sensor->minfo.name, i2c_adapter_id(client->adapter),
+ client->addr, _this->name);
this->sink_fmt.width =
sensor->limits[SMIAPP_LIMIT_X_ADDR_MAX] + 1;
@@ -2635,6 +2614,17 @@ static int smiapp_registered(struct v4l2_subdev *subdev)
if (rval < 0)
goto out_nvm_release;
+ /* prepare PLL configuration input values */
+ pll->bus_type = SMIAPP_PLL_BUS_TYPE_CSI2;
+ pll->csi2.lanes = sensor->platform_data->lanes;
+ pll->ext_clk_freq_hz = sensor->platform_data->ext_clk;
+ pll->flags = smiapp_call_quirk(sensor, pll_flags);
+
+ /* Profile 0 sensors have no separate OP clock branch. */
+ if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0)
+ pll->flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS;
+ pll->scale_n = sensor->limits[SMIAPP_LIMIT_SCALER_N_MIN];
+
rval = smiapp_update_mode(sensor);
if (rval) {
dev_err(&client->dev, "update mode failed\n");
@@ -2662,11 +2652,6 @@ out_ident_release:
out_power_off:
smiapp_power_off(sensor);
-
-out_smiapp_power_on:
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN)
- gpio_free(sensor->platform_data->xshutdown);
-
return rval;
}
@@ -2839,19 +2824,19 @@ static int smiapp_probe(struct i2c_client *client,
sensor->src->pads, 0);
}
-static int __exit smiapp_remove(struct i2c_client *client)
+static int smiapp_remove(struct i2c_client *client)
{
struct v4l2_subdev *subdev = i2c_get_clientdata(client);
struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
unsigned int i;
if (sensor->power_count) {
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN)
+ if (gpio_is_valid(sensor->platform_data->xshutdown))
gpio_set_value(sensor->platform_data->xshutdown, 0);
if (sensor->platform_data->set_xclk)
sensor->platform_data->set_xclk(&sensor->src->sd, 0);
else
- clk_disable(sensor->ext_clk);
+ clk_disable_unprepare(sensor->ext_clk);
sensor->power_count = 0;
}
@@ -2860,12 +2845,10 @@ static int __exit smiapp_remove(struct i2c_client *client)
device_remove_file(&client->dev, &dev_attr_nvm);
for (i = 0; i < sensor->ssds_used; i++) {
- media_entity_cleanup(&sensor->ssds[i].sd.entity);
v4l2_device_unregister_subdev(&sensor->ssds[i].sd);
+ media_entity_cleanup(&sensor->ssds[i].sd.entity);
}
smiapp_free_controls(sensor);
- if (sensor->platform_data->xshutdown != SMIAPP_NO_XSHUTDOWN)
- gpio_free(sensor->platform_data->xshutdown);
return 0;
}
@@ -2887,12 +2870,12 @@ static struct i2c_driver smiapp_i2c_driver = {
.pm = &smiapp_pm_ops,
},
.probe = smiapp_probe,
- .remove = __exit_p(smiapp_remove),
+ .remove = smiapp_remove,
.id_table = smiapp_id_table,
};
module_i2c_driver(smiapp_i2c_driver);
-MODULE_AUTHOR("Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>");
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus@iki.fi>");
MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver");
MODULE_LICENSE("GPL");