This patch converts chip-specific variables into chip enums that
can be used to easily add support for other chip types.
---
v2: Use family enumeration instead of flags to indicate FPD3/FPD4 difference.
Signed-off-by: Alexander Shiyan <eagle.alexander923@xxxxxxxxx>
---
drivers/media/i2c/ds90ub960.c | 83 ++++++++++++++++++++++++-----------
1 file changed, 58 insertions(+), 25 deletions(-)
diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c
index ffe5f25f8647..d71920677a0a 100644
--- a/drivers/media/i2c/ds90ub960.c
+++ b/drivers/media/i2c/ds90ub960.c
@@ -402,12 +402,21 @@
#define UB960_MAX_EQ_LEVEL 14
#define UB960_NUM_EQ_LEVELS (UB960_MAX_EQ_LEVEL - UB960_MIN_EQ_LEVEL + 1)
+enum chip_type {
+ UB960,
+ UB9702,
+};
+
+enum chip_family {
+ FAMILY_FPD3,
+ FAMILY_FPD4,
+};
+
struct ub960_hw_data {
- const char *model;
+ enum chip_type chip_type;
+ enum chip_family chip_family;
u8 num_rxports;
u8 num_txports;
- bool is_ub9702;
- bool is_fpdlink4;
};
enum ub960_rxport_mode {
@@ -1654,10 +1663,15 @@ static int ub960_rxport_add_serializer(struct ub960_data *priv, u8 nport)
ser_pdata->port = nport;
ser_pdata->atr = priv->atr;
- if (priv->hw_data->is_ub9702)
+
+ switch (priv->hw_data->chip_type) {
+ case UB9702:
ser_pdata->bc_rate = ub960_calc_bc_clk_rate_ub9702(priv, rxport);
- else
+ break;
+ default:
ser_pdata->bc_rate = ub960_calc_bc_clk_rate_ub960(priv, rxport);
+ break;
+ }
/*
* The serializer is added under the same i2c adapter as the
@@ -1785,7 +1799,7 @@ static int ub960_init_tx_ports(struct ub960_data *priv)
ub960_write(priv, UB960_SR_CSI_PLL_CTL, speed_select);
- if (priv->hw_data->is_ub9702) {
+ if (priv->hw_data->chip_type == UB9702) {
ub960_write(priv, UB960_SR_CSI_PLL_DIV, pll_div);
switch (priv->tx_data_rate) {
@@ -2140,10 +2154,14 @@ static int ub960_init_rx_ports(struct ub960_data *priv)
if (!rxport)
continue;
- if (priv->hw_data->is_ub9702)
+ switch (priv->hw_data->chip_type) {
+ case UB9702:
ub960_init_rx_port_ub9702(priv, rxport);
- else
+ break;
+ default:
ub960_init_rx_port_ub960(priv, rxport);
+ break;
+ }
}
return 0;
@@ -2486,6 +2504,7 @@ static int ub960_configure_ports_for_streaming(struct ub960_data *priv,
for (nport = 0; nport < priv->hw_data->num_rxports; nport++) {
struct ub960_rxport *rxport = priv->rxports[nport];
u8 vc = vc_map[nport];
+ unsigned int i;
if (rx_data[nport].num_streams == 0)
continue;
@@ -2509,21 +2528,22 @@ static int ub960_configure_ports_for_streaming(struct ub960_data *priv,
case RXPORT_MODE_CSI2_SYNC:
case RXPORT_MODE_CSI2_NONSYNC:
- if (!priv->hw_data->is_ub9702) {
+ switch (priv->hw_data->chip_type) {
+ case UB9702:
+ /* Map all VCs from this port to VC(nport) */
+ for (i = 0; i < 8; i++)
+ ub960_rxport_write(priv, nport,
+ UB960_RR_VC_ID_MAP(i),
+ nport);
+ break;
+ default:
/* Map all VCs from this port to the same VC */
ub960_rxport_write(priv, nport, UB960_RR_CSI_VC_MAP,
(vc << UB960_RR_CSI_VC_MAP_SHIFT(3)) |
(vc << UB960_RR_CSI_VC_MAP_SHIFT(2)) |
(vc << UB960_RR_CSI_VC_MAP_SHIFT(1)) |
(vc << UB960_RR_CSI_VC_MAP_SHIFT(0)));
- } else {
- unsigned int i;
-
- /* Map all VCs from this port to VC(nport) */
- for (i = 0; i < 8; i++)
- ub960_rxport_write(priv, nport,
- UB960_RR_VC_ID_MAP(i),
- nport);
+ break;
}
break;
@@ -3217,7 +3237,8 @@ ub960_parse_dt_rxport_link_properties(struct ub960_data *priv,
return -EINVAL;
}
- if (!priv->hw_data->is_fpdlink4 && cdr_mode == RXPORT_CDR_FPD4) {
+ if ((priv->hw_data->chip_family != FAMILY_FPD4) &&
+ (cdr_mode == RXPORT_CDR_FPD4)) {
dev_err(dev, "rx%u: FPD-Link 4 CDR not supported\n", nport);
return -EINVAL;
}
@@ -3796,6 +3817,7 @@ static int ub960_get_hw_resources(struct ub960_data *priv)
static int ub960_enable_core_hw(struct ub960_data *priv)
{
struct device *dev = &priv->client->dev;
+ const char *model;
u8 rev_mask;
int ret;
u8 dev_sts;
@@ -3830,8 +3852,19 @@ static int ub960_enable_core_hw(struct ub960_data *priv)
goto err_pd_gpio;
}
- dev_dbg(dev, "Found %s (rev/mask %#04x)\n", priv->hw_data->model,
- rev_mask);
+ switch (priv->hw_data->chip_type) {
+ case UB960:
+ model = "UB960";
+ break;
+ case UB9702:
+ model = "UB9702";
+ break;
+ default:
+ model = "Unknown";
+ break;
+ };
+
+ dev_info(dev, "Found %s (rev/mask %#04x)\n", model, rev_mask);
ret = ub960_read(priv, UB960_SR_DEVICE_STS, &dev_sts);
if (ret)
@@ -3851,7 +3884,7 @@ static int ub960_enable_core_hw(struct ub960_data *priv)
goto err_pd_gpio;
/* release GPIO lock */
- if (priv->hw_data->is_ub9702) {
+ if (priv->hw_data->chip_type == UB9702) {
ret = ub960_update_bits(priv, UB960_SR_RESET,
UB960_SR_RESET_GPIO_LOCK_RELEASE,
UB960_SR_RESET_GPIO_LOCK_RELEASE);
@@ -4013,17 +4046,17 @@ static void ub960_remove(struct i2c_client *client)
}
static const struct ub960_hw_data ds90ub960_hw = {
- .model = "ub960",
+ .chip_type = UB960,
+ .chip_family = FAMILY_FPD3,
.num_rxports = 4,
.num_txports = 2,
};
static const struct ub960_hw_data ds90ub9702_hw = {
- .model = "ub9702",
+ .chip_type = UB9702,
+ .chip_family = FAMILY_FPD4,
.num_rxports = 4,
.num_txports = 2,
- .is_ub9702 = true,
- .is_fpdlink4 = true,
};
static const struct i2c_device_id ub960_id[] = {
--
2.39.1
