diff options
Diffstat (limited to 'bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0504-media-i2c-max9296-add-MIPI-GMSL2-support.patch')
| -rw-r--r-- | bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0504-media-i2c-max9296-add-MIPI-GMSL2-support.patch | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0504-media-i2c-max9296-add-MIPI-GMSL2-support.patch b/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0504-media-i2c-max9296-add-MIPI-GMSL2-support.patch new file mode 100644 index 00000000..5301e0a3 --- /dev/null +++ b/bsp/meta-rcar/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0504-media-i2c-max9296-add-MIPI-GMSL2-support.patch @@ -0,0 +1,169 @@ +From ebdaf5ec6d7040c1c7c9a3486ea16ea60f5f127f Mon Sep 17 00:00:00 2001 +From: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Date: Wed, 29 Apr 2020 01:31:03 +0300 +Subject: [PATCH] media: i2c: max9296: add MIPI GMSL2 support + +This adds MIPI stream from serializer + +Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com> +--- + drivers/media/i2c/soc_camera/gmsl/max9296.c | 75 +++++++++++++++++------------ + drivers/media/i2c/soc_camera/gmsl/max9296.h | 6 +-- + 2 files changed, 47 insertions(+), 34 deletions(-) + +diff --git a/drivers/media/i2c/soc_camera/gmsl/max9296.c b/drivers/media/i2c/soc_camera/gmsl/max9296.c +index a6d286f..85b45ca 100644 +--- a/drivers/media/i2c/soc_camera/gmsl/max9296.c ++++ b/drivers/media/i2c/soc_camera/gmsl/max9296.c +@@ -94,7 +94,7 @@ static int gmsl = MODE_GMSL2; + module_param(gmsl, int, 0644); + MODULE_PARM_DESC(gmsl, " GMSL mode (default: 2 - GMSL2)"); + +-static char *mbus = "dvp"; ++static char *mbus = mbus_default; + module_param(mbus, charp, 0644); + MODULE_PARM_DESC(mbus, " Interfaces mipi,dvp (default: dvp)"); + +@@ -165,7 +165,7 @@ static void max9296_reset_oneshot(struct max9296_priv *priv) + if (!(reg & BIT(5))) + break; + +- msleep(1); ++ mdelay(1); + } + + if (reg & BIT(5)) +@@ -745,9 +745,12 @@ static int max9296_gmsl2_reverse_channel_setup(struct max9296_priv *priv, int li + des_update_bits(MAX9296_CTRL0, 0x13, BIT(link_n)); /* enable GMSL link# */ + max9296_reset_oneshot(priv); + +- /* wait 100ms for link to be established, indicated when status bit LOCKED goes high */ +- while ((!max9296_gmsl2_get_link_lock(priv, link_n)) && (--timeout)) +- msleep(1); ++ /* wait the link to be established, indicated when status bit LOCKED goes high */ ++ for (; timeout > 0; timeout--) { ++ if (max9296_gmsl2_get_link_lock(priv, link_n)) ++ break; ++ mdelay(1); ++ } + + if (!timeout) { + ret = -ETIMEDOUT; +@@ -785,36 +788,42 @@ static int max9296_gmsl2_link_serializer_setup(struct max9296_priv *priv, int li + struct max9296_link *link = priv->link[link_n]; + int i; + +- //ser_write(MAX9295_CTRL0, 0x31); /* link reset */ +- //msleep(100); +- ser_write(MAX9295_REG2, 0x03); /* disable all pipes */ +- + if (strcmp(priv->mbus, "dvp") == 0) { +- ser_write(MAX9295_VIDEO_TX0(0), BIT(6) | /* line CRC enable */ ++ ser_write(MAX9295_VIDEO_TX0(0), BIT(6) | /* line CRC enable */ + (priv->hven ? BIT(5) : 0)); /* HS/VS encoding */ + ser_write(MAX9295_VIDEO_TX1(0), 0x0a); /* BPP = 10 */ + ser_write(MAX9295_REG7, 0x07); /* DVP stream, enable HS/VS, rising edge */ +- } +- +- ser_write(MAX9295_REG2, 0x13); /* enable Pipe X */ + +- switch (priv->dt) { +- case MIPI_DT_YUV8: +- case MIPI_DT_RAW12: +- /* setup crossbar: strait DVP mapping */ +- ser_write(MAX9295_CROSS(0), priv->cb[0]); +- ser_write(MAX9295_CROSS(1), priv->cb[1]); +- ser_write(MAX9295_CROSS(2), priv->cb[2]); +- ser_write(MAX9295_CROSS(3), priv->cb[3]); +- ser_write(MAX9295_CROSS(4), priv->cb[4]); +- ser_write(MAX9295_CROSS(5), priv->cb[5]); +- ser_write(MAX9295_CROSS(6), priv->cb[6]); +- ser_write(MAX9295_CROSS(7), priv->cb[7]); +- ser_write(MAX9295_CROSS(8), priv->cb[8]); +- ser_write(MAX9295_CROSS(9), priv->cb[9]); +- ser_write(MAX9295_CROSS(10), priv->cb[10]); +- ser_write(MAX9295_CROSS(11), priv->cb[11]); +- break; ++ switch (priv->dt) { ++ case MIPI_DT_YUV8: ++ case MIPI_DT_RAW12: ++ /* setup crossbar: strait DVP mapping */ ++ ser_write(MAX9295_CROSS(0), priv->cb[0]); ++ ser_write(MAX9295_CROSS(1), priv->cb[1]); ++ ser_write(MAX9295_CROSS(2), priv->cb[2]); ++ ser_write(MAX9295_CROSS(3), priv->cb[3]); ++ ser_write(MAX9295_CROSS(4), priv->cb[4]); ++ ser_write(MAX9295_CROSS(5), priv->cb[5]); ++ ser_write(MAX9295_CROSS(6), priv->cb[6]); ++ ser_write(MAX9295_CROSS(7), priv->cb[7]); ++ ser_write(MAX9295_CROSS(8), priv->cb[8]); ++ ser_write(MAX9295_CROSS(9), priv->cb[9]); ++ ser_write(MAX9295_CROSS(10), priv->cb[10]); ++ ser_write(MAX9295_CROSS(11), priv->cb[11]); ++ break; ++ } ++ } else { ++ /* defaults: ++ * REG2 - video enable Pipex X,Z ++ * MIPI_RX0 - 1x4 mode (1-port x 4-lanes) ++ * MIPI_RX1 - 4-lanes ++ * MIPI_RX2, MIPI_RX3 - merge PHY1,PHY2 to 1x4-mode ++ * FRONTTOP_9 - start Pipes X,Z from CSI_A,CSI_B ++ */ ++ ++ ser_write(MAX9295_FRONTTOP_0, 0x71); /* enable Pipe X from from CSI_A,CSI_B */ ++ ser_write(MAX9295_FRONTTOP_12, BIT(6) | priv->dt); /* primary DT for Pipe X */ ++ ser_write(MAX9295_FRONTTOP_13, BIT(6) | MIPI_DT_EMB); /* secondary DT for Pipe X */ + } + + for (i = 0; i < 11; i++) { +@@ -856,7 +865,9 @@ static struct { + } gmsl2_pipe_maps[] = { + {0x00, 0x00}, /* FS */ + {0x01, 0x01}, /* FE */ +- {MIPI_DT_YUV8, MIPI_DT_YUV8} /* payload data */ ++ {MIPI_DT_YUV8, MIPI_DT_YUV8}, /* payload data */ ++ {MIPI_DT_RAW8, MIPI_DT_RAW8}, ++ {MIPI_DT_RAW12, MIPI_DT_RAW12}, + }; + + static void max9296_gmsl2_pipe_set_source(struct max9296_priv *priv, int pipe, int phy, int in_pipe) +@@ -1193,6 +1204,8 @@ static int max9296_parse_dt(struct i2c_client *client) + priv->gpio[7] = gpio7; + if (gpio8 >= 0) + priv->gpio[8] = gpio8; ++ if (strcmp(mbus, "dvp")) ++ priv->mbus = mbus; + + /* parse serializer crossbar setup */ + for (i = 0; i < 16; i++) { +diff --git a/drivers/media/i2c/soc_camera/gmsl/max9296.h b/drivers/media/i2c/soc_camera/gmsl/max9296.h +index 800df43..985b77e 100644 +--- a/drivers/media/i2c/soc_camera/gmsl/max9296.h ++++ b/drivers/media/i2c/soc_camera/gmsl/max9296.h +@@ -254,11 +254,11 @@ static inline int max9296_ser_write(struct max9296_link *link, int reg, int val) + return ret; + } + +-static inline int max9296_ser_read(struct max9296_link *link, int reg, u8 *val) ++static inline int max9296_ser_read(struct max9296_link *link, int reg, int *val) + { + int ret; + +- ret = regmap_read(link->regmap, reg, (int *)val); ++ ret = regmap_read(link->regmap, reg, val); + if (ret) + dev_dbg(&link->client->dev, "read register 0x%04x failed (%d)\n", reg, ret); + +@@ -276,6 +276,6 @@ static inline int max9296_ser_update_bits(struct max9296_link *link, int reg, in + return ret; + } + +-#define ser_read(reg, val) max9296_ser_read(link, reg, val) ++#define ser_read(reg, val) max9296_ser_read(link, reg, (int *)val) + #define ser_write(reg, val) max9296_ser_write(link, reg, val) + #define ser_update_bits(reg, mask, bits) max9296_ser_update_bits(link, reg, mask, bits) +-- +2.7.4 + |