From: Philipp Zabel <p.za...@pengutronix.de>
Regmap provides built in debugging, caching and provides dedicated accessors
for bit manipulations in registers, which make the following changes a lot
simpler.
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
Signed-off-by: Lucas Stach <l.st...@pengutronix.de>
---
drivers/media/i2c/tvp5150.c | 194 ++++++++++++++++++++++++++++++--------------
1 file changed, 133 insertions(+), 61 deletions(-)
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 3c5fb2509c47..a7495d2856c3 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -10,6 +10,7 @@
#include <linux/videodev2.h>
#include <linux/delay.h>
#include <linux/module.h>
+#include <linux/regmap.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/tvp5150.h>
@@ -37,6 +38,7 @@ struct tvp5150 {
struct v4l2_subdev sd;
struct v4l2_ctrl_handler hdl;
struct v4l2_rect rect;
+ struct regmap *regmap;
v4l2_std_id norm; /* Current set standard */
u32 input;
@@ -56,30 +58,14 @@ static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl
*ctrl)
static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
{
- struct i2c_client *c = v4l2_get_subdevdata(sd);
- int rc;
-
- rc = i2c_smbus_read_byte_data(c, addr);
- if (rc < 0) {
- v4l2_err(sd, "i2c i/o error: rc == %d\n", rc);
- return rc;
- }
-
- v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, rc);
-
- return rc;
-}
+ struct tvp5150 *decoder = to_tvp5150(sd);
+ int ret, val;
-static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
- unsigned char value)
-{
- struct i2c_client *c = v4l2_get_subdevdata(sd);
- int rc;
+ ret = regmap_read(decoder->regmap, addr, &val);
+ if (ret < 0)
+ return ret;
- v4l2_dbg(2, debug, sd, "tvp5150: writing 0x%02x 0x%02x\n", addr, value);
- rc = i2c_smbus_write_byte_data(c, addr, value);
- if (rc < 0)
- v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d\n", rc);
+ return val;
}
static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
@@ -266,8 +252,8 @@ static inline void tvp5150_selmux(struct v4l2_subdev *sd)
decoder->input, decoder->output,
input, opmode);
- tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
- tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
+ regmap_write(decoder->regmap, TVP5150_OP_MODE_CTL, opmode);
+ regmap_write(decoder->regmap, TVP5150_VD_IN_SRC_SEL_1, input);
/* Svideo should enable YCrCb output and disable GPCL output
* For Composite and TV, it should be the reverse
@@ -282,7 +268,7 @@ static inline void tvp5150_selmux(struct v4l2_subdev *sd)
val = (val & ~0x40) | 0x10;
else
val = (val & ~0x10) | 0x40;
- tvp5150_write(sd, TVP5150_MISC_CTL, val);
+ regmap_write(decoder->regmap, TVP5150_MISC_CTL, val);
};
struct i2c_reg_value {
@@ -553,8 +539,10 @@ static struct i2c_vbi_ram_value vbi_ram_default[] =
static int tvp5150_write_inittab(struct v4l2_subdev *sd,
const struct i2c_reg_value *regs)
{
+ struct tvp5150 *decoder = to_tvp5150(sd);
+
while (regs->reg != 0xff) {
- tvp5150_write(sd, regs->reg, regs->value);
+ regmap_write(decoder->regmap, regs->reg, regs->value);
regs++;
}
return 0;
@@ -563,22 +551,24 @@ static int tvp5150_write_inittab(struct v4l2_subdev *sd,
static int tvp5150_vdp_init(struct v4l2_subdev *sd,
const struct i2c_vbi_ram_value *regs)
{
+ struct tvp5150 *decoder = to_tvp5150(sd);
+ struct regmap *map = decoder->regmap;
unsigned int i;
/* Disable Full Field */
- tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
+ regmap_write(map, TVP5150_FULL_FIELD_ENA, 0);
/* Before programming, Line mode should be at 0xff */
for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
- tvp5150_write(sd, i, 0xff);
+ regmap_write(map, i, 0xff);
/* Load Ram Table */
while (regs->reg != (u16)-1) {
- tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
- tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
+ regmap_write(map, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
+ regmap_write(map, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
for (i = 0; i < 16; i++)
- tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA,
regs->values[i]);
+ regmap_write(map, TVP5150_VDP_CONF_RAM_DATA,
regs->values[i]);
regs++;
}
@@ -658,11 +648,11 @@ static int tvp5150_set_vbi(struct v4l2_subdev *sd,
reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
if (fields&1) {
- tvp5150_write(sd, reg, type);
+ regmap_write(decoder->regmap, reg, type);
}
if (fields&2) {
- tvp5150_write(sd, reg+1, type);
+ regmap_write(decoder->regmap, reg+1, type);
}
return type;
@@ -731,7 +721,7 @@ static int tvp5150_set_std(struct v4l2_subdev *sd,
v4l2_std_id std)
}
v4l2_dbg(1, debug, sd, "Set video std register to %d.\n", fmt);
- tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
+ regmap_write(decoder->regmap, TVP5150_VIDEO_STD, fmt);
return 0;
}
@@ -777,20 +767,20 @@ static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct v4l2_subdev *sd = to_sd(ctrl);
+ struct tvp5150 *decoder = to_tvp5150(to_sd(ctrl));
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
- tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->val);
+ regmap_write(decoder->regmap, TVP5150_BRIGHT_CTL, ctrl->val);
return 0;
case V4L2_CID_CONTRAST:
- tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->val);
+ regmap_write(decoder->regmap, TVP5150_CONTRAST_CTL, ctrl->val);
return 0;
case V4L2_CID_SATURATION:
- tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->val);
+ regmap_write(decoder->regmap, TVP5150_SATURATION_CTL,
ctrl->val);
return 0;
case V4L2_CID_HUE:
- tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
+ regmap_write(decoder->regmap, TVP5150_HUE_CTL, ctrl->val);
return 0;
}
return -EINVAL;
@@ -890,17 +880,17 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const
struct v4l2_crop *a)
hmax - TVP5150_MAX_CROP_TOP - rect.top,
hmax - rect.top);
- tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
- tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
+ regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top);
+ regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP,
rect.top + rect.height - hmax);
- tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_MSB,
+ regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB,
rect.left >> TVP5150_CROP_SHIFT);
- tvp5150_write(sd, TVP5150_ACT_VD_CROP_ST_LSB,
+ regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB,
rect.left | (1 << TVP5150_CROP_SHIFT));
- tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_MSB,
+ regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB,
(rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
TVP5150_CROP_SHIFT);
- tvp5150_write(sd, TVP5150_ACT_VD_CROP_STP_LSB,
+ regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB,
rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
decoder->rect = rect;
@@ -965,22 +955,25 @@ static int tvp5150_s_routing(struct v4l2_subdev *sd,
static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format
*fmt)
{
+ struct tvp5150 *decoder = to_tvp5150(sd);
+
/* this is for capturing 36 raw vbi lines
if there's a way to cut off the beginning 2 vbi lines
with the tvp5150 then the vbi line count could be lowered
to 17 lines/field again, although I couldn't find a register
which could do that cropping */
if (fmt->sample_format == V4L2_PIX_FMT_GREY)
- tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
+ regmap_write(decoder->regmap, TVP5150_LUMA_PROC_CTL_1, 0x70);
if (fmt->count[0] == 18 && fmt->count[1] == 18) {
- tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
- tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
+ regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START,
0x00);
+ regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, 0x01);
}
return 0;
}
static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct
v4l2_sliced_vbi_format *svbi)
{
+ struct tvp5150 *decoder = to_tvp5150(sd);
int i;
if (svbi->service_set != 0) {
@@ -991,17 +984,17 @@ static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd,
struct v4l2_sliced_vbi_f
svbi->service_lines[0][i], 0xf0, i, 3);
}
/* Enables FIFO */
- tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
+ regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 1);
} else {
/* Disables FIFO*/
- tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
+ regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 0);
/* Disable Full Field */
- tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
+ regmap_write(decoder->regmap, TVP5150_FULL_FIELD_ENA, 0);
/* Disable Line modes */
for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
- tvp5150_write(sd, i, 0xff);
+ regmap_write(decoder->regmap, i, 0xff);
}
return 0;
}
@@ -1039,7 +1032,9 @@ static int tvp5150_g_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *
static int tvp5150_s_register(struct v4l2_subdev *sd, const struct
v4l2_dbg_register *reg)
{
- tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
+ struct tvp5150 *decoder = to_tvp5150(sd);
+
+ regmap_write(decoder->regmap, reg->reg & 0xff, reg->val & 0xff);
return 0;
}
#endif
@@ -1105,13 +1100,87 @@ static const struct v4l2_subdev_ops tvp5150_ops = {
I2C Client & Driver
****************************************************************************/
+static const struct regmap_range tvp5150_readable_ranges[] = {
+ {
+ .range_min = TVP5150_VD_IN_SRC_SEL_1,
+ .range_max = TVP5150_AUTOSW_MSK,
+ }, {
+ .range_min = TVP5150_COLOR_KIL_THSH_CTL,
+ .range_max = TVP5150_CONF_SHARED_PIN,
+ }, {
+ .range_min = TVP5150_ACT_VD_CROP_ST_MSB,
+ .range_max = TVP5150_HORIZ_SYNC_START,
+ }, {
+ .range_min = TVP5150_VERT_BLANKING_START,
+ .range_max = TVP5150_INTT_CONFIG_REG_B,
+ }, {
+ .range_min = TVP5150_VIDEO_STD,
+ .range_max = TVP5150_VIDEO_STD,
+ }, {
+ .range_min = TVP5150_CB_GAIN_FACT,
+ .range_max = TVP5150_REV_SELECT,
+ }, {
+ .range_min = TVP5150_MSB_DEV_ID,
+ .range_max = TVP5150_STATUS_REG_5,
+ }, {
+ .range_min = TVP5150_CC_DATA_INI,
+ .range_max = TVP5150_TELETEXT_FIL_ENA,
+ }, {
+ .range_min = TVP5150_INT_STATUS_REG_A,
+ .range_max = TVP5150_FIFO_OUT_CTRL,
+ }, {
+ .range_min = TVP5150_FULL_FIELD_ENA,
+ .range_max = TVP5150_FULL_FIELD_MODE_REG,
+ },
+};
+
+bool tvp5150_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TVP5150_VERT_LN_COUNT_MSB:
+ case TVP5150_VERT_LN_COUNT_LSB:
+ case TVP5150_INT_STATUS_REG_A:
+ case TVP5150_INT_STATUS_REG_B:
+ case TVP5150_INT_ACTIVE_REG_B:
+ case TVP5150_STATUS_REG_1:
+ case TVP5150_STATUS_REG_2:
+ case TVP5150_STATUS_REG_3:
+ case TVP5150_STATUS_REG_4:
+ case TVP5150_STATUS_REG_5:
+ /* CC, WSS, VPS, VITC data? */
+ case TVP5150_VBI_FIFO_READ_DATA:
+ case TVP5150_VDP_STATUS_REG:
+ case TVP5150_FIFO_WORD_COUNT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_access_table tvp5150_readable_table = {
+ .yes_ranges = tvp5150_readable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(tvp5150_readable_ranges),
+};
+
+static struct regmap_config tvp5150_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 0xff,
+
+ .cache_type = REGCACHE_RBTREE,
+
+ .rd_table = &tvp5150_readable_table,
+ .volatile_reg = tvp5150_volatile_reg,
+};
+
static int tvp5150_probe(struct i2c_client *c,
const struct i2c_device_id *id)
{
struct tvp5150 *core;
struct v4l2_subdev *sd;
- int tvp5150_id[4];
- int i, res;
+ struct regmap *map;
+ u8 tvp5150_id[4];
+ int res;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(c->adapter,
@@ -1121,6 +1190,10 @@ static int tvp5150_probe(struct i2c_client *c,
core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
if (!core)
return -ENOMEM;
+ map = devm_regmap_init_i2c(c, &tvp5150_config);
+ if (IS_ERR(map))
+ return PTR_ERR(map);
+ core->regmap = map;
sd = &core->sd;
v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
@@ -1128,11 +1201,10 @@ static int tvp5150_probe(struct i2c_client *c,
* Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
* TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
*/
- for (i = 0; i < 4; i++) {
- res = tvp5150_read(sd, TVP5150_MSB_DEV_ID + i);
- if (res < 0)
- return res;
- tvp5150_id[i] = res;
+ res = regmap_bulk_read(map, TVP5150_MSB_DEV_ID, tvp5150_id, 4);
+ if (res < 0) {
+ dev_err(&c->dev, "reading ID registers failed: %d\n", res);
+ return res;
}
v4l_info(c, "chip found @ 0x%02x (%s)\n",
@@ -1143,7 +1215,7 @@ static int tvp5150_probe(struct i2c_client *c,
tvp5150_id[0], tvp5150_id[1]);
/* ITU-T BT.656.4 timing */
- tvp5150_write(sd, TVP5150_REV_SELECT, 0);
+ regmap_write(map, TVP5150_REV_SELECT, 0);
} else {
/* Is TVP5150A */
if (tvp5150_id[2] == 3 || tvp5150_id[3] == 0x21) {
--
2.6.2
--
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