From: git@luigi311.com To: linux-media@vger.kernel.org Cc: dave.stevenson@raspberrypi.com, jacopo.mondi@ideasonboard.com, mchehab@kernel.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, sakari.ailus@linux.intel.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, pavel@ucw.cz, phone-devel@vger.kernel.org, Luis Garcia <git@luigi311.com> Subject: [PATCH v4 09/25] media: i2c: imx258: Add support for running on 2 CSI data lanes Date: Sun, 14 Apr 2024 14:34:47 -0600 [thread overview] Message-ID: <20240414203503.18402-10-git@luigi311.com> (raw) In-Reply-To: <20240414203503.18402-1-git@luigi311.com> From: Dave Stevenson <dave.stevenson@raspberrypi.com> Extends the driver to also support 2 data lanes. Frame rates are obviously more restricted on 2 lanes, but some hardware simply hasn't wired more up. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Luis Garcia <git@luigi311.com> --- drivers/media/i2c/imx258.c | 214 ++++++++++++++++++++++++++++++++----- 1 file changed, 190 insertions(+), 24 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index e4b1b3cbbde5..8f792f0e0738 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -86,12 +86,18 @@ struct imx258_reg_list { const struct imx258_reg *regs; }; +enum { + IMX258_2_LANE_MODE, + IMX258_4_LANE_MODE, + IMX258_LANE_CONFIGS, +}; + /* Link frequency config */ struct imx258_link_freq_config { u32 pixels_per_line; /* PLL registers for this link frequency */ - struct imx258_reg_list reg_list; + struct imx258_reg_list reg_list[IMX258_LANE_CONFIGS]; }; /* Mode : resolution and related config&values */ @@ -111,8 +117,34 @@ struct imx258_mode { struct imx258_reg_list reg_list; }; -/* 4208x3120 needs 1267Mbps/lane, 4 lanes */ -static const struct imx258_reg mipi_1267mbps_19_2mhz[] = { +/* + * 4208x3120 @ 30 fps needs 1267Mbps/lane, 4 lanes. + * To avoid further computation of clock settings, adopt the same per + * lane data rate when using 2 lanes, thus allowing a maximum of 15fps. + */ +static const struct imx258_reg mipi_1267mbps_19_2mhz_2l[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x0301, 0x0A }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0xC6 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, + { 0x0820, 0x09 }, + { 0x0821, 0xa6 }, + { 0x0822, 0x66 }, + { 0x0823, 0x66 }, +}; + +static const struct imx258_reg mipi_1267mbps_19_2mhz_4l[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x0301, 0x05 }, @@ -126,16 +158,18 @@ static const struct imx258_reg mipi_1267mbps_19_2mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, { 0x0820, 0x13 }, { 0x0821, 0x4C }, { 0x0822, 0xCC }, { 0x0823, 0xCC }, }; -static const struct imx258_reg mipi_1272mbps_24mhz[] = { +static const struct imx258_reg mipi_1272mbps_24mhz_2l[] = { { 0x0136, 0x18 }, { 0x0137, 0x00 }, - { 0x0301, 0x05 }, + { 0x0301, 0x0a }, { 0x0303, 0x02 }, { 0x0305, 0x04 }, { 0x0306, 0x00 }, @@ -146,13 +180,59 @@ static const struct imx258_reg mipi_1272mbps_24mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, { 0x0820, 0x13 }, { 0x0821, 0x4C }, { 0x0822, 0xCC }, { 0x0823, 0xCC }, }; -static const struct imx258_reg mipi_640mbps_19_2mhz[] = { +static const struct imx258_reg mipi_1272mbps_24mhz_4l[] = { + { 0x0136, 0x18 }, + { 0x0137, 0x00 }, + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x04 }, + { 0x0306, 0x00 }, + { 0x0307, 0xD4 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, + { 0x0820, 0x13 }, + { 0x0821, 0xE0 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mipi_640mbps_19_2mhz_2l[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0x64 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, + { 0x0820, 0x05 }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mipi_640mbps_19_2mhz_4l[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x0301, 0x05 }, @@ -166,13 +246,37 @@ static const struct imx258_reg mipi_640mbps_19_2mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, + { 0x0820, 0x0A }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mipi_642mbps_24mhz_2l[] = { + { 0x0136, 0x18 }, + { 0x0137, 0x00 }, + { 0x0301, 0x0A }, + { 0x0303, 0x02 }, + { 0x0305, 0x04 }, + { 0x0306, 0x00 }, + { 0x0307, 0x6B }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, { 0x0820, 0x0A }, { 0x0821, 0x00 }, { 0x0822, 0x00 }, { 0x0823, 0x00 }, }; -static const struct imx258_reg mipi_642mbps_24mhz[] = { +static const struct imx258_reg mipi_642mbps_24mhz_4l[] = { { 0x0136, 0x18 }, { 0x0137, 0x00 }, { 0x0301, 0x05 }, @@ -186,6 +290,8 @@ static const struct imx258_reg mipi_642mbps_24mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, { 0x0820, 0x0A }, { 0x0821, 0x00 }, { 0x0822, 0x00 }, @@ -240,7 +346,6 @@ static const struct imx258_reg mode_common_regs[] = { { 0x5F05, 0xED }, { 0x0112, 0x0A }, { 0x0113, 0x0A }, - { 0x0114, 0x03 }, { 0x0342, 0x14 }, { 0x0343, 0xE8 }, { 0x0344, 0x00 }, @@ -359,11 +464,13 @@ enum { /* * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample - * data rate => double data rate; number of lanes => 4; bits per pixel => 10 + * data rate => double data rate; + * number of lanes => (configurable 2 or 4); + * bits per pixel => 10 */ -static u64 link_freq_to_pixel_rate(u64 f) +static u64 link_freq_to_pixel_rate(u64 f, unsigned int nlanes) { - f *= 2 * 4; + f *= 2 * nlanes; do_div(f, 10); return f; @@ -386,15 +493,27 @@ static const struct imx258_link_freq_config link_freq_configs_19_2[] = { [IMX258_LINK_FREQ_1267MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz), - .regs = mipi_1267mbps_19_2mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz_2l), + .regs = mipi_1267mbps_19_2mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz_4l), + .regs = mipi_1267mbps_19_2mhz_4l, + }, } }, [IMX258_LINK_FREQ_640MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz), - .regs = mipi_640mbps_19_2mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz_2l), + .regs = mipi_640mbps_19_2mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz_4l), + .regs = mipi_640mbps_19_2mhz_4l, + }, } }, }; @@ -403,15 +522,27 @@ static const struct imx258_link_freq_config link_freq_configs_24[] = { [IMX258_LINK_FREQ_1267MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz), - .regs = mipi_1272mbps_24mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz_2l), + .regs = mipi_1272mbps_24mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz_4l), + .regs = mipi_1272mbps_24mhz_4l, + }, } }, [IMX258_LINK_FREQ_640MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz), - .regs = mipi_642mbps_24mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz_2l), + .regs = mipi_642mbps_24mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz_4l), + .regs = mipi_642mbps_24mhz_4l, + }, } }, }; @@ -470,6 +601,7 @@ struct imx258 { const struct imx258_link_freq_config *link_freq_configs; const s64 *link_freq_menu_items; + unsigned int nlanes; /* * Mutex for serialized access: @@ -775,7 +907,7 @@ static int imx258_set_pad_format(struct v4l2_subdev *sd, __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); link_freq = imx258->link_freq_menu_items[mode->link_freq_index]; - pixel_rate = link_freq_to_pixel_rate(link_freq); + pixel_rate = link_freq_to_pixel_rate(link_freq, imx258->nlanes); __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); /* Update limits and set FPS to default */ vblank_def = imx258->cur_mode->vts_def - @@ -804,11 +936,13 @@ static int imx258_start_streaming(struct imx258 *imx258) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); const struct imx258_reg_list *reg_list; + const struct imx258_link_freq_config *link_freq_cfg; int ret, link_freq_index; /* Setup PLL */ link_freq_index = imx258->cur_mode->link_freq_index; - reg_list = &imx258->link_freq_configs[link_freq_index].reg_list; + link_freq_cfg = &imx258->link_freq_configs[link_freq_index]; + reg_list = &link_freq_cfg->reg_list[imx258->nlanes == 2 ? 0 : 1]; ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); if (ret) { dev_err(&client->dev, "%s failed to set plls\n", __func__); @@ -1026,9 +1160,11 @@ static int imx258_init_controls(struct imx258 *imx258) vflip->flags |= V4L2_CTRL_FLAG_READ_ONLY; pixel_rate_max = - link_freq_to_pixel_rate(imx258->link_freq_menu_items[0]); + link_freq_to_pixel_rate(imx258->link_freq_menu_items[0], + imx258->nlanes); pixel_rate_min = - link_freq_to_pixel_rate(imx258->link_freq_menu_items[1]); + link_freq_to_pixel_rate(imx258->link_freq_menu_items[1], + imx258->nlanes); /* By default, PIXEL_RATE is read only */ imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_PIXEL_RATE, @@ -1125,6 +1261,10 @@ static int imx258_get_regulators(struct imx258 *imx258, static int imx258_probe(struct i2c_client *client) { struct imx258 *imx258; + struct fwnode_handle *endpoint; + struct v4l2_fwnode_endpoint ep = { + .bus_type = V4L2_MBUS_CSI2_DPHY + }; int ret; u32 val = 0; @@ -1165,13 +1305,35 @@ static int imx258_probe(struct i2c_client *client) return -EINVAL; } + endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL); + if (!endpoint) { + dev_err(&client->dev, "Endpoint node not found\n"); + return -EINVAL; + } + + ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep); + fwnode_handle_put(endpoint); + if (ret) { + dev_err(&client->dev, "Parsing endpoint node failed\n"); + return ret; + } + + /* Get number of data lanes */ + imx258->nlanes = ep.bus.mipi_csi2.num_data_lanes; + if (imx258->nlanes != 2 && imx258->nlanes != 4) { + dev_err(&client->dev, "Invalid data lanes: %u\n", + imx258->nlanes); + ret = -EINVAL; + goto error_endpoint_free; + } + /* Initialize subdev */ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); /* Will be powered off via pm_runtime_idle */ ret = imx258_power_on(&client->dev); if (ret) - return ret; + goto error_endpoint_free; /* Check module identity */ ret = imx258_identify_module(imx258); @@ -1204,6 +1366,7 @@ static int imx258_probe(struct i2c_client *client) pm_runtime_set_active(&client->dev); pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev); + v4l2_fwnode_endpoint_free(&ep); return 0; @@ -1216,6 +1379,9 @@ static int imx258_probe(struct i2c_client *client) error_identify: imx258_power_off(&client->dev); +error_endpoint_free: + v4l2_fwnode_endpoint_free(&ep); + return ret; } -- 2.44.0
WARNING: multiple messages have this Message-ID (diff)
From: git@luigi311.com To: linux-media@vger.kernel.org Cc: dave.stevenson@raspberrypi.com, jacopo.mondi@ideasonboard.com, mchehab@kernel.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, sakari.ailus@linux.intel.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, pavel@ucw.cz, phone-devel@vger.kernel.org, Luis Garcia <git@luigi311.com> Subject: [PATCH v4 09/25] media: i2c: imx258: Add support for running on 2 CSI data lanes Date: Sun, 14 Apr 2024 14:34:47 -0600 [thread overview] Message-ID: <20240414203503.18402-10-git@luigi311.com> (raw) In-Reply-To: <20240414203503.18402-1-git@luigi311.com> From: Dave Stevenson <dave.stevenson@raspberrypi.com> Extends the driver to also support 2 data lanes. Frame rates are obviously more restricted on 2 lanes, but some hardware simply hasn't wired more up. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Luis Garcia <git@luigi311.com> --- drivers/media/i2c/imx258.c | 214 ++++++++++++++++++++++++++++++++----- 1 file changed, 190 insertions(+), 24 deletions(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index e4b1b3cbbde5..8f792f0e0738 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -86,12 +86,18 @@ struct imx258_reg_list { const struct imx258_reg *regs; }; +enum { + IMX258_2_LANE_MODE, + IMX258_4_LANE_MODE, + IMX258_LANE_CONFIGS, +}; + /* Link frequency config */ struct imx258_link_freq_config { u32 pixels_per_line; /* PLL registers for this link frequency */ - struct imx258_reg_list reg_list; + struct imx258_reg_list reg_list[IMX258_LANE_CONFIGS]; }; /* Mode : resolution and related config&values */ @@ -111,8 +117,34 @@ struct imx258_mode { struct imx258_reg_list reg_list; }; -/* 4208x3120 needs 1267Mbps/lane, 4 lanes */ -static const struct imx258_reg mipi_1267mbps_19_2mhz[] = { +/* + * 4208x3120 @ 30 fps needs 1267Mbps/lane, 4 lanes. + * To avoid further computation of clock settings, adopt the same per + * lane data rate when using 2 lanes, thus allowing a maximum of 15fps. + */ +static const struct imx258_reg mipi_1267mbps_19_2mhz_2l[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x0301, 0x0A }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0xC6 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, + { 0x0820, 0x09 }, + { 0x0821, 0xa6 }, + { 0x0822, 0x66 }, + { 0x0823, 0x66 }, +}; + +static const struct imx258_reg mipi_1267mbps_19_2mhz_4l[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x0301, 0x05 }, @@ -126,16 +158,18 @@ static const struct imx258_reg mipi_1267mbps_19_2mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, { 0x0820, 0x13 }, { 0x0821, 0x4C }, { 0x0822, 0xCC }, { 0x0823, 0xCC }, }; -static const struct imx258_reg mipi_1272mbps_24mhz[] = { +static const struct imx258_reg mipi_1272mbps_24mhz_2l[] = { { 0x0136, 0x18 }, { 0x0137, 0x00 }, - { 0x0301, 0x05 }, + { 0x0301, 0x0a }, { 0x0303, 0x02 }, { 0x0305, 0x04 }, { 0x0306, 0x00 }, @@ -146,13 +180,59 @@ static const struct imx258_reg mipi_1272mbps_24mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, { 0x0820, 0x13 }, { 0x0821, 0x4C }, { 0x0822, 0xCC }, { 0x0823, 0xCC }, }; -static const struct imx258_reg mipi_640mbps_19_2mhz[] = { +static const struct imx258_reg mipi_1272mbps_24mhz_4l[] = { + { 0x0136, 0x18 }, + { 0x0137, 0x00 }, + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x04 }, + { 0x0306, 0x00 }, + { 0x0307, 0xD4 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, + { 0x0820, 0x13 }, + { 0x0821, 0xE0 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mipi_640mbps_19_2mhz_2l[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0x64 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, + { 0x0820, 0x05 }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mipi_640mbps_19_2mhz_4l[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x0301, 0x05 }, @@ -166,13 +246,37 @@ static const struct imx258_reg mipi_640mbps_19_2mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, + { 0x0820, 0x0A }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mipi_642mbps_24mhz_2l[] = { + { 0x0136, 0x18 }, + { 0x0137, 0x00 }, + { 0x0301, 0x0A }, + { 0x0303, 0x02 }, + { 0x0305, 0x04 }, + { 0x0306, 0x00 }, + { 0x0307, 0x6B }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + + { 0x0114, 0x01 }, { 0x0820, 0x0A }, { 0x0821, 0x00 }, { 0x0822, 0x00 }, { 0x0823, 0x00 }, }; -static const struct imx258_reg mipi_642mbps_24mhz[] = { +static const struct imx258_reg mipi_642mbps_24mhz_4l[] = { { 0x0136, 0x18 }, { 0x0137, 0x00 }, { 0x0301, 0x05 }, @@ -186,6 +290,8 @@ static const struct imx258_reg mipi_642mbps_24mhz[] = { { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, + + { 0x0114, 0x03 }, { 0x0820, 0x0A }, { 0x0821, 0x00 }, { 0x0822, 0x00 }, @@ -240,7 +346,6 @@ static const struct imx258_reg mode_common_regs[] = { { 0x5F05, 0xED }, { 0x0112, 0x0A }, { 0x0113, 0x0A }, - { 0x0114, 0x03 }, { 0x0342, 0x14 }, { 0x0343, 0xE8 }, { 0x0344, 0x00 }, @@ -359,11 +464,13 @@ enum { /* * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample - * data rate => double data rate; number of lanes => 4; bits per pixel => 10 + * data rate => double data rate; + * number of lanes => (configurable 2 or 4); + * bits per pixel => 10 */ -static u64 link_freq_to_pixel_rate(u64 f) +static u64 link_freq_to_pixel_rate(u64 f, unsigned int nlanes) { - f *= 2 * 4; + f *= 2 * nlanes; do_div(f, 10); return f; @@ -386,15 +493,27 @@ static const struct imx258_link_freq_config link_freq_configs_19_2[] = { [IMX258_LINK_FREQ_1267MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz), - .regs = mipi_1267mbps_19_2mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz_2l), + .regs = mipi_1267mbps_19_2mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1267mbps_19_2mhz_4l), + .regs = mipi_1267mbps_19_2mhz_4l, + }, } }, [IMX258_LINK_FREQ_640MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz), - .regs = mipi_640mbps_19_2mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz_2l), + .regs = mipi_640mbps_19_2mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_640mbps_19_2mhz_4l), + .regs = mipi_640mbps_19_2mhz_4l, + }, } }, }; @@ -403,15 +522,27 @@ static const struct imx258_link_freq_config link_freq_configs_24[] = { [IMX258_LINK_FREQ_1267MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz), - .regs = mipi_1272mbps_24mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz_2l), + .regs = mipi_1272mbps_24mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_1272mbps_24mhz_4l), + .regs = mipi_1272mbps_24mhz_4l, + }, } }, [IMX258_LINK_FREQ_640MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { - .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz), - .regs = mipi_642mbps_24mhz, + [IMX258_2_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz_2l), + .regs = mipi_642mbps_24mhz_2l, + }, + [IMX258_4_LANE_MODE] = { + .num_of_regs = ARRAY_SIZE(mipi_642mbps_24mhz_4l), + .regs = mipi_642mbps_24mhz_4l, + }, } }, }; @@ -470,6 +601,7 @@ struct imx258 { const struct imx258_link_freq_config *link_freq_configs; const s64 *link_freq_menu_items; + unsigned int nlanes; /* * Mutex for serialized access: @@ -775,7 +907,7 @@ static int imx258_set_pad_format(struct v4l2_subdev *sd, __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); link_freq = imx258->link_freq_menu_items[mode->link_freq_index]; - pixel_rate = link_freq_to_pixel_rate(link_freq); + pixel_rate = link_freq_to_pixel_rate(link_freq, imx258->nlanes); __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); /* Update limits and set FPS to default */ vblank_def = imx258->cur_mode->vts_def - @@ -804,11 +936,13 @@ static int imx258_start_streaming(struct imx258 *imx258) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); const struct imx258_reg_list *reg_list; + const struct imx258_link_freq_config *link_freq_cfg; int ret, link_freq_index; /* Setup PLL */ link_freq_index = imx258->cur_mode->link_freq_index; - reg_list = &imx258->link_freq_configs[link_freq_index].reg_list; + link_freq_cfg = &imx258->link_freq_configs[link_freq_index]; + reg_list = &link_freq_cfg->reg_list[imx258->nlanes == 2 ? 0 : 1]; ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); if (ret) { dev_err(&client->dev, "%s failed to set plls\n", __func__); @@ -1026,9 +1160,11 @@ static int imx258_init_controls(struct imx258 *imx258) vflip->flags |= V4L2_CTRL_FLAG_READ_ONLY; pixel_rate_max = - link_freq_to_pixel_rate(imx258->link_freq_menu_items[0]); + link_freq_to_pixel_rate(imx258->link_freq_menu_items[0], + imx258->nlanes); pixel_rate_min = - link_freq_to_pixel_rate(imx258->link_freq_menu_items[1]); + link_freq_to_pixel_rate(imx258->link_freq_menu_items[1], + imx258->nlanes); /* By default, PIXEL_RATE is read only */ imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_PIXEL_RATE, @@ -1125,6 +1261,10 @@ static int imx258_get_regulators(struct imx258 *imx258, static int imx258_probe(struct i2c_client *client) { struct imx258 *imx258; + struct fwnode_handle *endpoint; + struct v4l2_fwnode_endpoint ep = { + .bus_type = V4L2_MBUS_CSI2_DPHY + }; int ret; u32 val = 0; @@ -1165,13 +1305,35 @@ static int imx258_probe(struct i2c_client *client) return -EINVAL; } + endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL); + if (!endpoint) { + dev_err(&client->dev, "Endpoint node not found\n"); + return -EINVAL; + } + + ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep); + fwnode_handle_put(endpoint); + if (ret) { + dev_err(&client->dev, "Parsing endpoint node failed\n"); + return ret; + } + + /* Get number of data lanes */ + imx258->nlanes = ep.bus.mipi_csi2.num_data_lanes; + if (imx258->nlanes != 2 && imx258->nlanes != 4) { + dev_err(&client->dev, "Invalid data lanes: %u\n", + imx258->nlanes); + ret = -EINVAL; + goto error_endpoint_free; + } + /* Initialize subdev */ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); /* Will be powered off via pm_runtime_idle */ ret = imx258_power_on(&client->dev); if (ret) - return ret; + goto error_endpoint_free; /* Check module identity */ ret = imx258_identify_module(imx258); @@ -1204,6 +1366,7 @@ static int imx258_probe(struct i2c_client *client) pm_runtime_set_active(&client->dev); pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev); + v4l2_fwnode_endpoint_free(&ep); return 0; @@ -1216,6 +1379,9 @@ static int imx258_probe(struct i2c_client *client) error_identify: imx258_power_off(&client->dev); +error_endpoint_free: + v4l2_fwnode_endpoint_free(&ep); + return ret; } -- 2.44.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-04-14 20:40 UTC|newest] Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-14 20:34 [PATCH v4 00/25] imx258 improvement series git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 01/25] media: i2c: imx258: Remove unused defines git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 02/25] media: i2c: imx258: Make image geometry meet sensor requirements git 2024-04-14 20:34 ` git 2024-04-15 6:25 ` Alexander Stein 2024-04-15 6:25 ` Alexander Stein 2024-04-15 16:38 ` Luis Garcia 2024-04-15 16:38 ` Luis Garcia 2024-04-16 15:18 ` Dave Stevenson 2024-04-16 15:18 ` Dave Stevenson 2024-04-14 20:34 ` [PATCH v4 03/25] media: i2c: imx258: Disable digital cropping on binned modes git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 04/25] media: i2c: imx258: Remove redundant I2C writes git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 05/25] media: i2c: imx258: Add regulator control git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 06/25] media: i2c: imx258: Make V4L2_CID_VBLANK configurable git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 07/25] media: i2c: imx258: Split out common registers from the mode based ones git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 08/25] media: i2c: imx258: Add support for 24MHz clock git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` git [this message] 2024-04-14 20:34 ` [PATCH v4 09/25] media: i2c: imx258: Add support for running on 2 CSI data lanes git 2024-04-14 20:34 ` [PATCH v4 10/25] media: i2c: imx258: Follow normal V4L2 behaviours for clipping exposure git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 11/25] media: i2c: imx258: Add get_selection for pixel array information git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 12/25] media: i2c: imx258: Allow configuration of clock lane behaviour git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 13/25] media: i2c: imx258: Correct max FRM_LENGTH_LINES value git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 14/25] media: i2c: imx258: Issue reset before starting streaming git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 15/25] media: i2c: imx258: Set pixel_rate range to the same as the value git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 16/25] media: i2c: imx258: Support faster pixel rate on binned modes git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 17/25] dt-bindings: media: imx258: Rename to include vendor prefix git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 18/25] dt-bindings: media: imx258: Add alternate compatible strings git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 19/25] media: i2c: imx258: Change register settings for variants of the sensor git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 20/25] media: i2c: imx258: Make HFLIP and VFLIP controls writable git 2024-04-14 20:34 ` git 2024-04-14 20:34 ` [PATCH v4 21/25] dt-bindings: media: imx258: Add binding for powerdown-gpio git 2024-04-14 20:34 ` git 2024-04-14 20:35 ` [PATCH v4 22/25] media: i2c: imx258: Add support for powerdown gpio git 2024-04-14 20:35 ` git 2024-04-14 20:35 ` [PATCH v4 23/25] media: i2c: imx258: Add support for reset gpio git 2024-04-14 20:35 ` git 2024-04-15 16:00 ` Tommaso Merciai 2024-04-15 16:00 ` Tommaso Merciai 2024-04-15 16:25 ` Luis Garcia 2024-04-15 16:25 ` Luis Garcia 2024-04-14 20:35 ` [PATCH v4 24/25] media:i2c: imx258: Use v4l2_link_freq_to_bitmap helper git 2024-04-14 20:35 ` git 2024-04-15 15:18 ` Tommaso Merciai 2024-04-15 15:18 ` Tommaso Merciai 2024-04-15 16:27 ` Luis Garcia 2024-04-15 16:27 ` Luis Garcia 2024-04-15 16:32 ` Tommaso Merciai 2024-04-15 16:32 ` Tommaso Merciai 2024-04-14 20:35 ` [PATCH v4 25/25] media: i2c: imx258: Convert to new CCI register access helpers git 2024-04-14 20:35 ` git 2024-04-15 14:47 ` Tommaso Merciai 2024-04-15 14:47 ` Tommaso Merciai 2024-04-15 15:29 ` Luis Garcia 2024-04-15 15:29 ` Luis Garcia
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20240414203503.18402-10-git@luigi311.com \ --to=git@luigi311.com \ --cc=conor+dt@kernel.org \ --cc=dave.stevenson@raspberrypi.com \ --cc=devicetree@vger.kernel.org \ --cc=festevam@gmail.com \ --cc=imx@lists.linux.dev \ --cc=jacopo.mondi@ideasonboard.com \ --cc=kernel@pengutronix.de \ --cc=krzysztof.kozlowski+dt@linaro.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-media@vger.kernel.org \ --cc=mchehab@kernel.org \ --cc=pavel@ucw.cz \ --cc=phone-devel@vger.kernel.org \ --cc=robh@kernel.org \ --cc=s.hauer@pengutronix.de \ --cc=sakari.ailus@linux.intel.com \ --cc=shawnguo@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.