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path: root/drivers/media/platform/rcar-vin/rcar-csi2.c
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Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-csi2.c')
-rw-r--r--drivers/media/platform/rcar-vin/rcar-csi2.c241
1 files changed, 215 insertions, 26 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index e28eff039688..11848d0c4a55 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -126,6 +126,12 @@ struct rcar_csi2;
#define PHTW_CWEN BIT(8)
#define PHTW_TESTDIN_CODE(n) ((n & 0xff))
+#define PHYFRX_REG 0x64
+#define PHYFRX_FORCERX_MODE_3 BIT(3)
+#define PHYFRX_FORCERX_MODE_2 BIT(2)
+#define PHYFRX_FORCERX_MODE_1 BIT(1)
+#define PHYFRX_FORCERX_MODE_0 BIT(0)
+
struct phtw_value {
u16 data;
u16 code;
@@ -136,6 +142,31 @@ struct rcsi2_mbps_reg {
u16 reg;
};
+static const struct rcsi2_mbps_reg phtw_mbps_v3u[] = {
+ { .mbps = 1500, .reg = 0xcc },
+ { .mbps = 1550, .reg = 0x1d },
+ { .mbps = 1600, .reg = 0x27 },
+ { .mbps = 1650, .reg = 0x30 },
+ { .mbps = 1700, .reg = 0x39 },
+ { .mbps = 1750, .reg = 0x42 },
+ { .mbps = 1800, .reg = 0x4b },
+ { .mbps = 1850, .reg = 0x55 },
+ { .mbps = 1900, .reg = 0x5e },
+ { .mbps = 1950, .reg = 0x67 },
+ { .mbps = 2000, .reg = 0x71 },
+ { .mbps = 2050, .reg = 0x79 },
+ { .mbps = 2100, .reg = 0x83 },
+ { .mbps = 2150, .reg = 0x8c },
+ { .mbps = 2200, .reg = 0x95 },
+ { .mbps = 2250, .reg = 0x9e },
+ { .mbps = 2300, .reg = 0xa7 },
+ { .mbps = 2350, .reg = 0xb0 },
+ { .mbps = 2400, .reg = 0xba },
+ { .mbps = 2450, .reg = 0xc3 },
+ { .mbps = 2500, .reg = 0xcc },
+ { /* sentinel */ },
+};
+
static const struct rcsi2_mbps_reg phtw_mbps_h3_v3h_m3n[] = {
{ .mbps = 80, .reg = 0x86 },
{ .mbps = 90, .reg = 0x86 },
@@ -200,6 +231,72 @@ static const struct rcsi2_mbps_reg phtw_mbps_v3m_e3[] = {
#define PHYPLL_REG 0x68
#define PHYPLL_HSFREQRANGE(n) ((n) << 16)
+static const struct rcsi2_mbps_reg hsfreqrange_v3u[] = {
+ { .mbps = 80, .reg = 0x00 },
+ { .mbps = 90, .reg = 0x10 },
+ { .mbps = 100, .reg = 0x20 },
+ { .mbps = 110, .reg = 0x30 },
+ { .mbps = 120, .reg = 0x01 },
+ { .mbps = 130, .reg = 0x11 },
+ { .mbps = 140, .reg = 0x21 },
+ { .mbps = 150, .reg = 0x31 },
+ { .mbps = 160, .reg = 0x02 },
+ { .mbps = 170, .reg = 0x12 },
+ { .mbps = 180, .reg = 0x22 },
+ { .mbps = 190, .reg = 0x32 },
+ { .mbps = 205, .reg = 0x03 },
+ { .mbps = 220, .reg = 0x13 },
+ { .mbps = 235, .reg = 0x23 },
+ { .mbps = 250, .reg = 0x33 },
+ { .mbps = 275, .reg = 0x04 },
+ { .mbps = 300, .reg = 0x14 },
+ { .mbps = 325, .reg = 0x25 },
+ { .mbps = 350, .reg = 0x35 },
+ { .mbps = 400, .reg = 0x05 },
+ { .mbps = 450, .reg = 0x16 },
+ { .mbps = 500, .reg = 0x26 },
+ { .mbps = 550, .reg = 0x37 },
+ { .mbps = 600, .reg = 0x07 },
+ { .mbps = 650, .reg = 0x18 },
+ { .mbps = 700, .reg = 0x28 },
+ { .mbps = 750, .reg = 0x39 },
+ { .mbps = 800, .reg = 0x09 },
+ { .mbps = 850, .reg = 0x19 },
+ { .mbps = 900, .reg = 0x29 },
+ { .mbps = 950, .reg = 0x3a },
+ { .mbps = 1000, .reg = 0x0a },
+ { .mbps = 1050, .reg = 0x1a },
+ { .mbps = 1100, .reg = 0x2a },
+ { .mbps = 1150, .reg = 0x3b },
+ { .mbps = 1200, .reg = 0x0b },
+ { .mbps = 1250, .reg = 0x1b },
+ { .mbps = 1300, .reg = 0x2b },
+ { .mbps = 1350, .reg = 0x3c },
+ { .mbps = 1400, .reg = 0x0c },
+ { .mbps = 1450, .reg = 0x1c },
+ { .mbps = 1500, .reg = 0x2c },
+ { .mbps = 1550, .reg = 0x3d },
+ { .mbps = 1600, .reg = 0x0d },
+ { .mbps = 1650, .reg = 0x1d },
+ { .mbps = 1700, .reg = 0x2e },
+ { .mbps = 1750, .reg = 0x3e },
+ { .mbps = 1800, .reg = 0x0e },
+ { .mbps = 1850, .reg = 0x1e },
+ { .mbps = 1900, .reg = 0x2f },
+ { .mbps = 1950, .reg = 0x3f },
+ { .mbps = 2000, .reg = 0x0f },
+ { .mbps = 2050, .reg = 0x40 },
+ { .mbps = 2100, .reg = 0x41 },
+ { .mbps = 2150, .reg = 0x42 },
+ { .mbps = 2200, .reg = 0x43 },
+ { .mbps = 2300, .reg = 0x45 },
+ { .mbps = 2350, .reg = 0x46 },
+ { .mbps = 2400, .reg = 0x47 },
+ { .mbps = 2450, .reg = 0x48 },
+ { .mbps = 2500, .reg = 0x49 },
+ { /* sentinel */ },
+};
+
static const struct rcsi2_mbps_reg hsfreqrange_h3_v3h_m3n[] = {
{ .mbps = 80, .reg = 0x00 },
{ .mbps = 90, .reg = 0x10 },
@@ -355,6 +452,7 @@ struct rcar_csi2_info {
unsigned int csi0clkfreqrange;
unsigned int num_channels;
bool clear_ulps;
+ bool use_isp;
};
struct rcar_csi2 {
@@ -370,9 +468,8 @@ struct rcar_csi2 {
struct v4l2_subdev *remote;
unsigned int remote_pad;
+ struct mutex lock; /* Protects mf and stream_count. */
struct v4l2_mbus_framefmt mf;
-
- struct mutex lock;
int stream_count;
unsigned short lanes;
@@ -553,6 +650,8 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv)
/* Code is validated in set_fmt. */
format = rcsi2_code_to_fmt(priv->mf.code);
+ if (!format)
+ return -EINVAL;
/*
* Enable all supported CSI-2 channels with virtual channel and
@@ -609,9 +708,12 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv)
rcsi2_write(priv, PHTC_REG, 0);
/* Configure */
- rcsi2_write(priv, VCDT_REG, vcdt);
- if (vcdt2)
- rcsi2_write(priv, VCDT2_REG, vcdt2);
+ if (!priv->info->use_isp) {
+ rcsi2_write(priv, VCDT_REG, vcdt);
+ if (vcdt2)
+ rcsi2_write(priv, VCDT2_REG, vcdt2);
+ }
+
/* Lanes are zero indexed. */
rcsi2_write(priv, LSWAP_REG,
LSWAP_L0SEL(priv->lane_swap[0] - 1) |
@@ -636,6 +738,11 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv)
rcsi2_write(priv, CSI0CLKFCPR_REG,
CSI0CLKFREQRANGE(priv->info->csi0clkfreqrange));
+ if (priv->info->use_isp)
+ rcsi2_write(priv, PHYFRX_REG,
+ PHYFRX_FORCERX_MODE_3 | PHYFRX_FORCERX_MODE_2 |
+ PHYFRX_FORCERX_MODE_1 | PHYFRX_FORCERX_MODE_0);
+
rcsi2_write(priv, PHYCNT_REG, phycnt);
rcsi2_write(priv, LINKCNT_REG, LINKCNT_MONITOR_EN |
LINKCNT_REG_MONI_PACT_EN | LINKCNT_ICLK_NONSTOP);
@@ -647,6 +754,9 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv)
if (ret)
return ret;
+ if (priv->info->use_isp)
+ rcsi2_write(priv, PHYFRX_REG, 0);
+
/* Run post PHY start initialization, if needed. */
if (priv->info->phy_post_init) {
ret = priv->info->phy_post_init(priv);
@@ -725,6 +835,8 @@ static int rcsi2_set_pad_format(struct v4l2_subdev *sd,
struct rcar_csi2 *priv = sd_to_csi2(sd);
struct v4l2_mbus_framefmt *framefmt;
+ mutex_lock(&priv->lock);
+
if (!rcsi2_code_to_fmt(format->format.code))
format->format.code = rcar_csi2_formats[0].code;
@@ -735,6 +847,8 @@ static int rcsi2_set_pad_format(struct v4l2_subdev *sd,
*framefmt = format->format;
}
+ mutex_unlock(&priv->lock);
+
return 0;
}
@@ -744,11 +858,15 @@ static int rcsi2_get_pad_format(struct v4l2_subdev *sd,
{
struct rcar_csi2 *priv = sd_to_csi2(sd);
+ mutex_lock(&priv->lock);
+
if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
format->format = priv->mf;
else
format->format = *v4l2_subdev_get_try_format(sd, sd_state, 0);
+ mutex_unlock(&priv->lock);
+
return 0;
}
@@ -917,19 +1035,18 @@ static int rcsi2_parse_dt(struct rcar_csi2 *priv)
dev_dbg(priv->dev, "Found '%pOF'\n", to_of_node(fwnode));
- v4l2_async_notifier_init(&priv->notifier);
+ v4l2_async_nf_init(&priv->notifier);
priv->notifier.ops = &rcar_csi2_notify_ops;
- asd = v4l2_async_notifier_add_fwnode_subdev(&priv->notifier, fwnode,
- struct v4l2_async_subdev);
+ asd = v4l2_async_nf_add_fwnode(&priv->notifier, fwnode,
+ struct v4l2_async_subdev);
fwnode_handle_put(fwnode);
if (IS_ERR(asd))
return PTR_ERR(asd);
- ret = v4l2_async_subdev_notifier_register(&priv->subdev,
- &priv->notifier);
+ ret = v4l2_async_subdev_nf_register(&priv->subdev, &priv->notifier);
if (ret)
- v4l2_async_notifier_cleanup(&priv->notifier);
+ v4l2_async_nf_cleanup(&priv->notifier);
return ret;
}
@@ -1063,6 +1180,62 @@ static int rcsi2_phy_post_init_v3m_e3(struct rcar_csi2 *priv)
return rcsi2_phtw_write_array(priv, step1);
}
+static int rcsi2_init_phtw_v3u(struct rcar_csi2 *priv,
+ unsigned int mbps)
+{
+ /* In case of 1500Mbps or less */
+ static const struct phtw_value step1[] = {
+ { .data = 0xcc, .code = 0xe2 },
+ { /* sentinel */ },
+ };
+
+ static const struct phtw_value step2[] = {
+ { .data = 0x01, .code = 0xe3 },
+ { .data = 0x11, .code = 0xe4 },
+ { .data = 0x01, .code = 0xe5 },
+ { /* sentinel */ },
+ };
+
+ /* In case of 1500Mbps or less */
+ static const struct phtw_value step3[] = {
+ { .data = 0x38, .code = 0x08 },
+ { /* sentinel */ },
+ };
+
+ static const struct phtw_value step4[] = {
+ { .data = 0x01, .code = 0x00 },
+ { .data = 0x4b, .code = 0xac },
+ { .data = 0x03, .code = 0x00 },
+ { .data = 0x80, .code = 0x07 },
+ { /* sentinel */ },
+ };
+
+ int ret;
+
+ if (mbps != 0 && mbps <= 1500)
+ ret = rcsi2_phtw_write_array(priv, step1);
+ else
+ ret = rcsi2_phtw_write_mbps(priv, mbps, phtw_mbps_v3u, 0xe2);
+ if (ret)
+ return ret;
+
+ ret = rcsi2_phtw_write_array(priv, step2);
+ if (ret)
+ return ret;
+
+ if (mbps != 0 && mbps <= 1500) {
+ ret = rcsi2_phtw_write_array(priv, step3);
+ if (ret)
+ return ret;
+ }
+
+ ret = rcsi2_phtw_write_array(priv, step4);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
/* -----------------------------------------------------------------------------
* Platform Device Driver.
*/
@@ -1074,11 +1247,9 @@ static const struct media_entity_operations rcar_csi2_entity_ops = {
static int rcsi2_probe_resources(struct rcar_csi2 *priv,
struct platform_device *pdev)
{
- struct resource *res;
int irq, ret;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->base = devm_ioremap_resource(&pdev->dev, res);
+ priv->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
@@ -1155,6 +1326,14 @@ static const struct rcar_csi2_info rcar_csi2_info_r8a77990 = {
.num_channels = 2,
};
+static const struct rcar_csi2_info rcar_csi2_info_r8a779a0 = {
+ .init_phtw = rcsi2_init_phtw_v3u,
+ .hsfreqrange = hsfreqrange_v3u,
+ .csi0clkfreqrange = 0x20,
+ .clear_ulps = true,
+ .use_isp = true,
+};
+
static const struct of_device_id rcar_csi2_of_table[] = {
{
.compatible = "renesas,r8a774a1-csi2",
@@ -1200,6 +1379,10 @@ static const struct of_device_id rcar_csi2_of_table[] = {
.compatible = "renesas,r8a77990-csi2",
.data = &rcar_csi2_info_r8a77990,
},
+ {
+ .compatible = "renesas,r8a779a0-csi2",
+ .data = &rcar_csi2_info_r8a779a0,
+ },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, rcar_csi2_of_table);
@@ -1220,7 +1403,7 @@ static int rcsi2_probe(struct platform_device *pdev)
{
const struct soc_device_attribute *attr;
struct rcar_csi2 *priv;
- unsigned int i;
+ unsigned int i, num_pads;
int ret;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
@@ -1245,14 +1428,14 @@ static int rcsi2_probe(struct platform_device *pdev)
ret = rcsi2_probe_resources(priv, pdev);
if (ret) {
dev_err(priv->dev, "Failed to get resources\n");
- return ret;
+ goto error_mutex;
}
platform_set_drvdata(pdev, priv);
ret = rcsi2_parse_dt(priv);
if (ret)
- return ret;
+ goto error_mutex;
priv->subdev.owner = THIS_MODULE;
priv->subdev.dev = &pdev->dev;
@@ -1265,28 +1448,32 @@ static int rcsi2_probe(struct platform_device *pdev)
priv->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
priv->subdev.entity.ops = &rcar_csi2_entity_ops;
+ num_pads = priv->info->use_isp ? 2 : NR_OF_RCAR_CSI2_PAD;
+
priv->pads[RCAR_CSI2_SINK].flags = MEDIA_PAD_FL_SINK;
- for (i = RCAR_CSI2_SOURCE_VC0; i < NR_OF_RCAR_CSI2_PAD; i++)
+ for (i = RCAR_CSI2_SOURCE_VC0; i < num_pads; i++)
priv->pads[i].flags = MEDIA_PAD_FL_SOURCE;
- ret = media_entity_pads_init(&priv->subdev.entity, NR_OF_RCAR_CSI2_PAD,
+ ret = media_entity_pads_init(&priv->subdev.entity, num_pads,
priv->pads);
if (ret)
- goto error;
+ goto error_async;
pm_runtime_enable(&pdev->dev);
ret = v4l2_async_register_subdev(&priv->subdev);
if (ret < 0)
- goto error;
+ goto error_async;
dev_info(priv->dev, "%d lanes found\n", priv->lanes);
return 0;
-error:
- v4l2_async_notifier_unregister(&priv->notifier);
- v4l2_async_notifier_cleanup(&priv->notifier);
+error_async:
+ v4l2_async_nf_unregister(&priv->notifier);
+ v4l2_async_nf_cleanup(&priv->notifier);
+error_mutex:
+ mutex_destroy(&priv->lock);
return ret;
}
@@ -1295,12 +1482,14 @@ static int rcsi2_remove(struct platform_device *pdev)
{
struct rcar_csi2 *priv = platform_get_drvdata(pdev);
- v4l2_async_notifier_unregister(&priv->notifier);
- v4l2_async_notifier_cleanup(&priv->notifier);
+ v4l2_async_nf_unregister(&priv->notifier);
+ v4l2_async_nf_cleanup(&priv->notifier);
v4l2_async_unregister_subdev(&priv->subdev);
pm_runtime_disable(&pdev->dev);
+ mutex_destroy(&priv->lock);
+
return 0;
}
generated by cgit (git 2.34.1) at 2024-06-07 19:46:31 +0000