diff --git a/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8910.dts b/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8910.dts index 2ed75fae68ef2c..7a0121583e37b5 100644 --- a/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8910.dts +++ b/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8910.dts @@ -45,6 +45,26 @@ default-brightness-level = <255>; }; + cam_vana_rear_vreg: cam-vana-rear-regulator { + compatible = "regulator-fixed"; + regulator-name = "cam_vana_rear_vreg"; + startup-delay-us = <0>; + enable-active-high; + gpio = <&tlmm 34 GPIO_ACTIVE_HIGH>; + pinctrl-0 = <&imx214_vana_default>; + pinctrl-names = "default"; + }; + + cam_vdig_rear_vreg: cam-vdig-rear-regulator { + compatible = "regulator-fixed"; + regulator-name = "cam_vdig_rear_vreg"; + startup-delay-us = <0>; + enable-active-high; + gpio = <&tlmm 31 GPIO_ACTIVE_HIGH>; + pinctrl-0 = <&imx214_vdig_default>; + pinctrl-names = "default"; + }; + flash-led-controller { compatible = "ocs,ocp8110"; enable-gpios = <&tlmm 49 GPIO_ACTIVE_HIGH>; @@ -277,6 +297,52 @@ status = "okay"; }; +&camss { + status = "okay"; + + ports { + port@0 { + reg = <0>; + csiphy0_ep: endpoint { + clock-lanes = <1>; + data-lanes = <0 2 3 4>; + remote-endpoint = <&imx214_ep>; + }; + }; + }; +}; + +&cci { + status = "okay"; +}; + +&cci_i2c0 { + camera@10 { + compatible = "sony,imx214"; + reg = <0x10>; + + vdda-supply = <&cam_vana_rear_vreg>; + vddd-supply = <&cam_vdig_rear_vreg>; + vdddo-supply = <&pm8916_l6>; + enable-gpios = <&tlmm 35 GPIO_ACTIVE_HIGH>; + clocks = <&gcc GCC_CAMSS_MCLK0_CLK>; + clock-frequency = <23880000>; + pinctrl-0 = <&camera_rear_default>; + pinctrl-names = "default"; + + orientation = <1>; /* Rear camera */ + rotation = <270>; + + port { + imx214_ep: endpoint { + data-lanes = <1 2 3 4>; + link-frequencies = /bits/ 64 <597000000>; + remote-endpoint = <&csiphy0_ep>; + }; + }; + }; +}; + &gpu { status = "okay"; }; @@ -455,6 +521,22 @@ bias-pull-up; }; + imx214_vana_default: imx214-vana-default-state { + pins = "gpio34"; + function = "gpio"; + + drive-strength = <2>; + bias-disable; + }; + + imx214_vdig_default: imx214-vdig-default-state { + pins = "gpio31"; + function = "gpio"; + + drive-strength = <2>; + bias-disable; + }; + mag_reset_default: mag-reset-default-state { pins = "gpio111"; function = "gpio"; @@ -539,3 +621,7 @@ qcom,dtest = <1>; }; }; + +&camera_rear_default { + /delete-node/ pwdn-pins; +}; diff --git a/arch/arm64/configs/msm8916_defconfig b/arch/arm64/configs/msm8916_defconfig index 9e6ec6506a1c8c..f5eb239731e2b5 100644 --- a/arch/arm64/configs/msm8916_defconfig +++ b/arch/arm64/configs/msm8916_defconfig @@ -272,6 +272,7 @@ CONFIG_V4L_PLATFORM_DRIVERS=y CONFIG_V4L_MEM2MEM_DRIVERS=y CONFIG_VIDEO_QCOM_CAMSS=m CONFIG_VIDEO_QCOM_VENUS=m +CONFIG_VIDEO_IMX214=m CONFIG_DRM=y CONFIG_DRM_MSM=m # CONFIG_DRM_MSM_MDP4 is not set diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 85ecb2aeefdbff..db6ef20fcdb5d0 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -141,6 +141,7 @@ config VIDEO_IMX214 depends on GPIOLIB select REGMAP_I2C select V4L2_CCI_I2C + select VIDEO_CCS_PLL help This is a Video4Linux2 sensor driver for the Sony IMX214 camera. diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index 6c3f6f3c8b1f77..573cf3ec895f13 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -20,6 +20,8 @@ #include #include +#include "ccs-pll.h" + /* Chip ID */ #define IMX214_REG_CHIP_ID CCI_REG16(0x0016) #define IMX214_CHIP_ID 0x0214 @@ -34,7 +36,6 @@ #define IMX214_DEFAULT_LINK_FREQ 600000000 /* Keep wrong link frequency for backward compatibility */ #define IMX214_DEFAULT_LINK_FREQ_LEGACY 480000000 -#define IMX214_DEFAULT_PIXEL_RATE ((IMX214_DEFAULT_LINK_FREQ * 8LL) / 10) #define IMX214_FPS 30 /* V-TIMING internal */ @@ -84,6 +85,7 @@ #define IMX214_CSI_DATA_FORMAT_RAW10 0x0A0A #define IMX214_CSI_DATA_FORMAT_COMP6 0x0A06 #define IMX214_CSI_DATA_FORMAT_COMP8 0x0A08 +#define IMX214_BITS_PER_PIXEL_MASK 0xFF #define IMX214_REG_CSI_LANE_MODE CCI_REG8(0x0114) #define IMX214_CSI_2_LANE_MODE 1 @@ -249,6 +251,10 @@ struct imx214 { struct clk *xclk; struct regmap *regmap; + struct ccs_pll pll; + + struct v4l2_fwnode_endpoint bus_cfg; + struct v4l2_subdev sd; struct media_pad pad; @@ -299,16 +305,6 @@ static const struct cci_reg_sequence mode_4096x2304[] = { { IMX214_REG_DIG_CROP_WIDTH, 4096 }, { IMX214_REG_DIG_CROP_HEIGHT, 2304 }, - { IMX214_REG_VTPXCK_DIV, 5 }, - { IMX214_REG_VTSYCK_DIV, 2 }, - { IMX214_REG_PREPLLCK_VT_DIV, 3 }, - { IMX214_REG_PLL_VT_MPY, 150 }, - { IMX214_REG_OPPXCK_DIV, 10 }, - { IMX214_REG_OPSYCK_DIV, 1 }, - { IMX214_REG_PLL_MULT_DRIV, IMX214_PLL_SINGLE }, - - { IMX214_REG_REQ_LINK_BIT_RATE, IMX214_LINK_BIT_RATE_MBPS(4800) }, - { CCI_REG8(0x3A03), 0x09 }, { CCI_REG8(0x3A04), 0x50 }, { CCI_REG8(0x3A05), 0x01 }, @@ -362,16 +358,6 @@ static const struct cci_reg_sequence mode_1920x1080[] = { { IMX214_REG_DIG_CROP_WIDTH, 1920 }, { IMX214_REG_DIG_CROP_HEIGHT, 1080 }, - { IMX214_REG_VTPXCK_DIV, 5 }, - { IMX214_REG_VTSYCK_DIV, 2 }, - { IMX214_REG_PREPLLCK_VT_DIV, 3 }, - { IMX214_REG_PLL_VT_MPY, 150 }, - { IMX214_REG_OPPXCK_DIV, 10 }, - { IMX214_REG_OPSYCK_DIV, 1 }, - { IMX214_REG_PLL_MULT_DRIV, IMX214_PLL_SINGLE }, - - { IMX214_REG_REQ_LINK_BIT_RATE, IMX214_LINK_BIT_RATE_MBPS(4800) }, - { CCI_REG8(0x3A03), 0x04 }, { CCI_REG8(0x3A04), 0xF8 }, { CCI_REG8(0x3A05), 0x02 }, @@ -405,9 +391,6 @@ static const struct cci_reg_sequence mode_table_common[] = { /* ATR setting */ { IMX214_REG_ATR_FAST_MOVE, 2 }, - /* external clock setting */ - { IMX214_REG_EXCK_FREQ, IMX214_EXCK_FREQ(IMX214_DEFAULT_CLK_FREQ / 1000000) }, - /* global setting */ /* basic config */ { IMX214_REG_MASK_CORR_FRAMES, IMX214_CORR_FRAMES_MASK }, @@ -777,6 +760,30 @@ static int imx214_entity_init_state(struct v4l2_subdev *subdev, return 0; } +static int imx214_configure_pll(struct imx214 *imx214) +{ + int ret = 0; + + cci_write(imx214->regmap, IMX214_REG_VTPXCK_DIV, + imx214->pll.vt_bk.pix_clk_div, &ret); + cci_write(imx214->regmap, IMX214_REG_VTSYCK_DIV, + imx214->pll.vt_bk.sys_clk_div, &ret); + cci_write(imx214->regmap, IMX214_REG_PREPLLCK_VT_DIV, + imx214->pll.vt_fr.pre_pll_clk_div, &ret); + cci_write(imx214->regmap, IMX214_REG_PLL_VT_MPY, + imx214->pll.vt_fr.pll_multiplier, &ret); + cci_write(imx214->regmap, IMX214_REG_OPPXCK_DIV, + imx214->pll.op_bk.pix_clk_div, &ret); + cci_write(imx214->regmap, IMX214_REG_OPSYCK_DIV, + imx214->pll.op_bk.sys_clk_div, &ret); + cci_write(imx214->regmap, IMX214_REG_PLL_MULT_DRIV, + IMX214_PLL_SINGLE, &ret); + cci_write(imx214->regmap, IMX214_REG_EXCK_FREQ, + IMX214_EXCK_FREQ(imx214->pll.ext_clk_freq_hz / 1000000), &ret); + + return ret; +} + static int imx214_update_digital_gain(struct imx214 *imx214, u32 val) { int ret = 0; @@ -877,9 +884,6 @@ static const struct v4l2_ctrl_ops imx214_ctrl_ops = { static int imx214_ctrls_init(struct imx214 *imx214) { - static const s64 link_freq[] = { - IMX214_DEFAULT_LINK_FREQ - }; static const struct v4l2_area unit_size = { .width = 1120, .height = 1120, @@ -900,15 +904,14 @@ static int imx214_ctrls_init(struct imx214 *imx214) if (ret) return ret; - imx214->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, NULL, - V4L2_CID_PIXEL_RATE, 0, - IMX214_DEFAULT_PIXEL_RATE, 1, - IMX214_DEFAULT_PIXEL_RATE); + imx214->pixel_rate = + v4l2_ctrl_new_std(ctrl_hdlr, NULL, V4L2_CID_PIXEL_RATE, 1, + INT_MAX, 1, 1); imx214->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, NULL, V4L2_CID_LINK_FREQ, - ARRAY_SIZE(link_freq) - 1, - 0, link_freq); + imx214->bus_cfg.nr_of_link_frequencies - 1, + 0, imx214->bus_cfg.link_frequencies); if (imx214->link_freq) imx214->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; @@ -1009,6 +1012,7 @@ static int imx214_start_streaming(struct imx214 *imx214) const struct v4l2_mbus_framefmt *fmt; struct v4l2_subdev_state *state; const struct imx214_mode *mode; + int bit_rate_mbps; int ret; ret = cci_multi_reg_write(imx214->regmap, mode_table_common, @@ -1018,6 +1022,21 @@ static int imx214_start_streaming(struct imx214 *imx214) return ret; } + ret = imx214_configure_pll(imx214); + if (ret) { + dev_err(imx214->dev, "failed to configure PLL %d\n", ret); + return ret; + } + + bit_rate_mbps = (imx214->pll.pixel_rate_pixel_array / 1000000) + * imx214->pll.bits_per_pixel; + ret = cci_write(imx214->regmap, IMX214_REG_REQ_LINK_BIT_RATE, + IMX214_LINK_BIT_RATE_MBPS(bit_rate_mbps), NULL); + if (ret) { + dev_err(imx214->dev, "failed to configure link bit rate\n"); + return ret; + } + ret = cci_write(imx214->regmap, IMX214_REG_CSI_LANE_MODE, IMX214_CSI_4_LANE_MODE, NULL); if (ret) { @@ -1095,6 +1114,108 @@ static int imx214_s_stream(struct v4l2_subdev *subdev, int enable) return ret; } +static int imx214_pll_calculate(struct imx214 *imx214, struct ccs_pll *pll, + unsigned int link_freq) +{ + struct ccs_pll_limits limits = { + .min_ext_clk_freq_hz = 6000000, + .max_ext_clk_freq_hz = 27000000, + + .vt_fr = { + .min_pre_pll_clk_div = 1, + .max_pre_pll_clk_div = 15, + /* min_pll_op_clk_freq_hz / max_pll_multiplier */ + .min_pll_ip_clk_freq_hz = 281667, + /* max_pll_op_clk_freq_hz / min_pll_multiplier */ + .max_pll_ip_clk_freq_hz = 100000000, + .min_pll_multiplier = 12, + .max_pll_multiplier = 1200, + .min_pll_op_clk_freq_hz = 338000000, + .max_pll_op_clk_freq_hz = 1200000000, + }, + .vt_bk = { + .min_sys_clk_div = 2, + .max_sys_clk_div = 4, + .min_pix_clk_div = 5, + .max_pix_clk_div = 10, + .min_pix_clk_freq_hz = 30000000, + .max_pix_clk_freq_hz = 120000000, + }, + .op_bk = { + .min_sys_clk_div = 1, + .max_sys_clk_div = 2, + .min_pix_clk_div = 6, + .max_pix_clk_div = 10, + .min_pix_clk_freq_hz = 30000000, + .max_pix_clk_freq_hz = 120000000, + }, + + .min_line_length_pck_bin = IMX214_PPL_DEFAULT, + .min_line_length_pck = IMX214_PPL_DEFAULT, + }; + unsigned int num_lanes = imx214->bus_cfg.bus.mipi_csi2.num_data_lanes; + int ret; + + /* + * There are no documented constraints on the sys clock frequency, for + * either branch. Recover them based on the PLL output clock frequency + * and sys_clk_div limits on one hand, and the pix clock frequency and + * the pix_clk_div limits on the other hand. + */ + limits.vt_bk.min_sys_clk_freq_hz = + max(limits.vt_fr.min_pll_op_clk_freq_hz / limits.vt_bk.max_sys_clk_div, + limits.vt_bk.min_pix_clk_freq_hz * limits.vt_bk.min_pix_clk_div); + limits.vt_bk.max_sys_clk_freq_hz = + min(limits.vt_fr.max_pll_op_clk_freq_hz / limits.vt_bk.min_sys_clk_div, + limits.vt_bk.max_pix_clk_freq_hz * limits.vt_bk.max_pix_clk_div); + + limits.op_bk.min_sys_clk_freq_hz = + max(limits.vt_fr.min_pll_op_clk_freq_hz / limits.op_bk.max_sys_clk_div, + limits.op_bk.min_pix_clk_freq_hz * limits.op_bk.min_pix_clk_div); + limits.op_bk.max_sys_clk_freq_hz = + min(limits.vt_fr.max_pll_op_clk_freq_hz / limits.op_bk.min_sys_clk_div, + limits.op_bk.max_pix_clk_freq_hz * limits.op_bk.max_pix_clk_div); + + memset(pll, 0, sizeof(*pll)); + + pll->bus_type = CCS_PLL_BUS_TYPE_CSI2_DPHY; + pll->op_lanes = num_lanes; + pll->vt_lanes = num_lanes; + pll->csi2.lanes = num_lanes; + + pll->binning_horizontal = 1; + pll->binning_vertical = 1; + pll->scale_m = 1; + pll->scale_n = 1; + pll->bits_per_pixel = + IMX214_CSI_DATA_FORMAT_RAW10 & IMX214_BITS_PER_PIXEL_MASK; + pll->flags = CCS_PLL_FLAG_LANE_SPEED_MODEL; + pll->link_freq = link_freq; + pll->ext_clk_freq_hz = clk_get_rate(imx214->xclk); + + ret = ccs_pll_calculate(imx214->dev, &limits, pll); + + return ret; +} + +static int imx214_pll_update(struct imx214 *imx214) +{ + u64 link_freq; + int ret; + + link_freq = imx214->bus_cfg.link_frequencies[imx214->link_freq->val]; + ret = imx214_pll_calculate(imx214, &imx214->pll, link_freq); + if (ret) { + dev_err(imx214->dev, "PLL calculations failed: %d\n", ret); + return ret; + } + + __v4l2_ctrl_s_ctrl_int64(imx214->pixel_rate, + imx214->pll.pixel_rate_pixel_array); + + return 0; +} + static int imx214_get_frame_interval(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *fival) @@ -1201,12 +1322,10 @@ static int imx214_identify_module(struct imx214 *imx214) return 0; } -static int imx214_parse_fwnode(struct device *dev) +static int imx214_parse_fwnode(struct device *dev, struct imx214 *imx214) { + struct v4l2_fwnode_endpoint *bus_cfg = &imx214->bus_cfg; struct fwnode_handle *endpoint; - struct v4l2_fwnode_endpoint bus_cfg = { - .bus_type = V4L2_MBUS_CSI2_DPHY, - }; unsigned int i; int ret; @@ -1214,42 +1333,52 @@ static int imx214_parse_fwnode(struct device *dev) if (!endpoint) return dev_err_probe(dev, -EINVAL, "endpoint node not found\n"); - ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg); + bus_cfg->bus_type = V4L2_MBUS_CSI2_DPHY; + ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, bus_cfg); + fwnode_handle_put(endpoint); if (ret) { dev_err_probe(dev, ret, "parsing endpoint node failed\n"); - goto done; + goto error; } /* Check the number of MIPI CSI2 data lanes */ - if (bus_cfg.bus.mipi_csi2.num_data_lanes != 4) { + if (bus_cfg->bus.mipi_csi2.num_data_lanes != 4) { ret = dev_err_probe(dev, -EINVAL, "only 4 data lanes are currently supported\n"); - goto done; + goto error; } - if (bus_cfg.nr_of_link_frequencies != 1) + if (bus_cfg->nr_of_link_frequencies != 1) dev_warn(dev, "Only one link-frequency supported, please review your DT. Continuing anyway\n"); - for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) { - if (bus_cfg.link_frequencies[i] == IMX214_DEFAULT_LINK_FREQ) + for (i = 0; i < bus_cfg->nr_of_link_frequencies; i++) { + u64 freq = bus_cfg->link_frequencies[i]; + struct ccs_pll pll; + + if (!imx214_pll_calculate(imx214, &pll, freq)) break; - if (bus_cfg.link_frequencies[i] == - IMX214_DEFAULT_LINK_FREQ_LEGACY) { + if (freq == IMX214_DEFAULT_LINK_FREQ_LEGACY) { dev_warn(dev, "link-frequencies %d not supported, please review your DT. Continuing anyway\n", IMX214_DEFAULT_LINK_FREQ); + freq = IMX214_DEFAULT_LINK_FREQ; + if (imx214_pll_calculate(imx214, &pll, freq)) + continue; + bus_cfg->link_frequencies[i] = freq; break; } } - if (i == bus_cfg.nr_of_link_frequencies) + if (i == bus_cfg->nr_of_link_frequencies) ret = dev_err_probe(dev, -EINVAL, - "link-frequencies %d not supported, please review your DT\n", - IMX214_DEFAULT_LINK_FREQ); + "link-frequencies %lld not supported, please review your DT\n", + bus_cfg->nr_of_link_frequencies ? + bus_cfg->link_frequencies[0] : 0); -done: - v4l2_fwnode_endpoint_free(&bus_cfg); - fwnode_handle_put(endpoint); + return 0; + +error: + v4l2_fwnode_endpoint_free(&imx214->bus_cfg); return ret; } @@ -1257,12 +1386,9 @@ static int imx214_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct imx214 *imx214; + u32 xclk_freq; int ret; - ret = imx214_parse_fwnode(dev); - if (ret) - return ret; - imx214 = devm_kzalloc(dev, sizeof(*imx214), GFP_KERNEL); if (!imx214) return -ENOMEM; @@ -1274,7 +1400,14 @@ static int imx214_probe(struct i2c_client *client) return dev_err_probe(dev, PTR_ERR(imx214->xclk), "failed to get xclk\n"); - ret = clk_set_rate(imx214->xclk, IMX214_DEFAULT_CLK_FREQ); + ret = device_property_read_u32(dev, "clock-frequency", &xclk_freq); + if (ret) { + dev_warn(dev, + "clock-frequency not set, please review your DT. Fallback to default\n"); + xclk_freq = IMX214_DEFAULT_CLK_FREQ; + } + + ret = clk_set_rate(imx214->xclk, xclk_freq); if (ret) return dev_err_probe(dev, ret, "failed to set xclk frequency\n"); @@ -1293,6 +1426,10 @@ static int imx214_probe(struct i2c_client *client) return dev_err_probe(dev, PTR_ERR(imx214->regmap), "failed to initialize CCI\n"); + ret = imx214_parse_fwnode(dev, imx214); + if (ret) + return ret; + v4l2_i2c_subdev_init(&imx214->sd, client, &imx214_subdev_ops); imx214->sd.internal_ops = &imx214_internal_ops; @@ -1300,7 +1437,9 @@ static int imx214_probe(struct i2c_client *client) * Enable power initially, to avoid warnings * from clk_disable on power_off */ - imx214_power_on(imx214->dev); + ret = imx214_power_on(imx214->dev); + if (ret < 0) + goto error_fwnode; ret = imx214_identify_module(imx214); if (ret) @@ -1331,6 +1470,8 @@ static int imx214_probe(struct i2c_client *client) pm_runtime_set_active(imx214->dev); pm_runtime_enable(imx214->dev); + imx214_pll_update(imx214); + ret = v4l2_async_register_subdev_sensor(&imx214->sd); if (ret < 0) { dev_err_probe(dev, ret, @@ -1356,6 +1497,9 @@ static int imx214_probe(struct i2c_client *client) error_power_off: imx214_power_off(imx214->dev); +error_fwnode: + v4l2_fwnode_endpoint_free(&imx214->bus_cfg); + return ret; } @@ -1368,6 +1512,8 @@ static void imx214_remove(struct i2c_client *client) v4l2_subdev_cleanup(sd); media_entity_cleanup(&imx214->sd.entity); v4l2_ctrl_handler_free(&imx214->ctrls); + v4l2_fwnode_endpoint_free(&imx214->bus_cfg); + pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) { imx214_power_off(imx214->dev);