1b873663bSTodor Tomov // SPDX-License-Identifier: GPL-2.0 2ec6859b2STodor Tomov /* 3ec6859b2STodor Tomov * camss-csiphy.c 4ec6859b2STodor Tomov * 5ec6859b2STodor Tomov * Qualcomm MSM Camera Subsystem - CSIPHY Module 6ec6859b2STodor Tomov * 7ec6859b2STodor Tomov * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved. 8ec6859b2STodor Tomov * Copyright (C) 2016-2018 Linaro Ltd. 9ec6859b2STodor Tomov */ 10ec6859b2STodor Tomov #include <linux/clk.h> 11ec6859b2STodor Tomov #include <linux/delay.h> 12ec6859b2STodor Tomov #include <linux/interrupt.h> 133799eca5SArnd Bergmann #include <linux/io.h> 14ec6859b2STodor Tomov #include <linux/kernel.h> 15ec6859b2STodor Tomov #include <linux/of.h> 16ec6859b2STodor Tomov #include <linux/platform_device.h> 1702afa816STodor Tomov #include <linux/pm_runtime.h> 18ec6859b2STodor Tomov #include <media/media-entity.h> 19ec6859b2STodor Tomov #include <media/v4l2-device.h> 20ec6859b2STodor Tomov #include <media/v4l2-subdev.h> 21ec6859b2STodor Tomov 22ec6859b2STodor Tomov #include "camss-csiphy.h" 23ec6859b2STodor Tomov #include "camss.h" 24ec6859b2STodor Tomov 25ec6859b2STodor Tomov #define MSM_CSIPHY_NAME "msm_csiphy" 26ec6859b2STodor Tomov 27cba3819dSTodor Tomov struct csiphy_format { 28ec6859b2STodor Tomov u32 code; 29ec6859b2STodor Tomov u8 bpp; 30cba3819dSTodor Tomov }; 31cba3819dSTodor Tomov 32cba3819dSTodor Tomov static const struct csiphy_format csiphy_formats_8x16[] = { 33cba3819dSTodor Tomov { MEDIA_BUS_FMT_UYVY8_2X8, 8 }, 34cba3819dSTodor Tomov { MEDIA_BUS_FMT_VYUY8_2X8, 8 }, 35cba3819dSTodor Tomov { MEDIA_BUS_FMT_YUYV8_2X8, 8 }, 36cba3819dSTodor Tomov { MEDIA_BUS_FMT_YVYU8_2X8, 8 }, 37cba3819dSTodor Tomov { MEDIA_BUS_FMT_SBGGR8_1X8, 8 }, 38cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGBRG8_1X8, 8 }, 39cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGRBG8_1X8, 8 }, 40cba3819dSTodor Tomov { MEDIA_BUS_FMT_SRGGB8_1X8, 8 }, 41cba3819dSTodor Tomov { MEDIA_BUS_FMT_SBGGR10_1X10, 10 }, 42cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGBRG10_1X10, 10 }, 43cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGRBG10_1X10, 10 }, 44cba3819dSTodor Tomov { MEDIA_BUS_FMT_SRGGB10_1X10, 10 }, 45cba3819dSTodor Tomov { MEDIA_BUS_FMT_SBGGR12_1X12, 12 }, 46cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGBRG12_1X12, 12 }, 47cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGRBG12_1X12, 12 }, 48cba3819dSTodor Tomov { MEDIA_BUS_FMT_SRGGB12_1X12, 12 }, 49cc8fe073STodor Tomov { MEDIA_BUS_FMT_Y10_1X10, 10 }, 50cba3819dSTodor Tomov }; 51cba3819dSTodor Tomov 52cba3819dSTodor Tomov static const struct csiphy_format csiphy_formats_8x96[] = { 53cba3819dSTodor Tomov { MEDIA_BUS_FMT_UYVY8_2X8, 8 }, 54cba3819dSTodor Tomov { MEDIA_BUS_FMT_VYUY8_2X8, 8 }, 55cba3819dSTodor Tomov { MEDIA_BUS_FMT_YUYV8_2X8, 8 }, 56cba3819dSTodor Tomov { MEDIA_BUS_FMT_YVYU8_2X8, 8 }, 57cba3819dSTodor Tomov { MEDIA_BUS_FMT_SBGGR8_1X8, 8 }, 58cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGBRG8_1X8, 8 }, 59cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGRBG8_1X8, 8 }, 60cba3819dSTodor Tomov { MEDIA_BUS_FMT_SRGGB8_1X8, 8 }, 61cba3819dSTodor Tomov { MEDIA_BUS_FMT_SBGGR10_1X10, 10 }, 62cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGBRG10_1X10, 10 }, 63cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGRBG10_1X10, 10 }, 64cba3819dSTodor Tomov { MEDIA_BUS_FMT_SRGGB10_1X10, 10 }, 65cba3819dSTodor Tomov { MEDIA_BUS_FMT_SBGGR12_1X12, 12 }, 66cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGBRG12_1X12, 12 }, 67cba3819dSTodor Tomov { MEDIA_BUS_FMT_SGRBG12_1X12, 12 }, 68cba3819dSTodor Tomov { MEDIA_BUS_FMT_SRGGB12_1X12, 12 }, 69f476fb56STodor Tomov { MEDIA_BUS_FMT_SBGGR14_1X14, 14 }, 70f476fb56STodor Tomov { MEDIA_BUS_FMT_SGBRG14_1X14, 14 }, 71f476fb56STodor Tomov { MEDIA_BUS_FMT_SGRBG14_1X14, 14 }, 72f476fb56STodor Tomov { MEDIA_BUS_FMT_SRGGB14_1X14, 14 }, 73cc8fe073STodor Tomov { MEDIA_BUS_FMT_Y10_1X10, 10 }, 74ec6859b2STodor Tomov }; 75ec6859b2STodor Tomov 76ec6859b2STodor Tomov /* 77ec6859b2STodor Tomov * csiphy_get_bpp - map media bus format to bits per pixel 78cba3819dSTodor Tomov * @formats: supported media bus formats array 79cba3819dSTodor Tomov * @nformats: size of @formats array 80ec6859b2STodor Tomov * @code: media bus format code 81ec6859b2STodor Tomov * 82ec6859b2STodor Tomov * Return number of bits per pixel 83ec6859b2STodor Tomov */ 84cba3819dSTodor Tomov static u8 csiphy_get_bpp(const struct csiphy_format *formats, 85cba3819dSTodor Tomov unsigned int nformats, u32 code) 86ec6859b2STodor Tomov { 87ec6859b2STodor Tomov unsigned int i; 88ec6859b2STodor Tomov 89cba3819dSTodor Tomov for (i = 0; i < nformats; i++) 90cba3819dSTodor Tomov if (code == formats[i].code) 91cba3819dSTodor Tomov return formats[i].bpp; 92ec6859b2STodor Tomov 93ec6859b2STodor Tomov WARN(1, "Unknown format\n"); 94ec6859b2STodor Tomov 95cba3819dSTodor Tomov return formats[0].bpp; 96ec6859b2STodor Tomov } 97ec6859b2STodor Tomov 98ec6859b2STodor Tomov /* 99ec6859b2STodor Tomov * csiphy_set_clock_rates - Calculate and set clock rates on CSIPHY module 100ec6859b2STodor Tomov * @csiphy: CSIPHY device 101ec6859b2STodor Tomov */ 102ec6859b2STodor Tomov static int csiphy_set_clock_rates(struct csiphy_device *csiphy) 103ec6859b2STodor Tomov { 1049c3e59deSTodor Tomov struct device *dev = csiphy->camss->dev; 105ec6859b2STodor Tomov u32 pixel_clock; 106ec6859b2STodor Tomov int i, j; 107ec6859b2STodor Tomov int ret; 108ec6859b2STodor Tomov 109ec6859b2STodor Tomov ret = camss_get_pixel_clock(&csiphy->subdev.entity, &pixel_clock); 110ec6859b2STodor Tomov if (ret) 111ec6859b2STodor Tomov pixel_clock = 0; 112ec6859b2STodor Tomov 113ec6859b2STodor Tomov for (i = 0; i < csiphy->nclocks; i++) { 114ec6859b2STodor Tomov struct camss_clock *clock = &csiphy->clock[i]; 115ec6859b2STodor Tomov 116*4863b93cSAngeloGioacchino Del Regno if (csiphy->rate_set[i]) { 117cba3819dSTodor Tomov u8 bpp = csiphy_get_bpp(csiphy->formats, 118cba3819dSTodor Tomov csiphy->nformats, 119ec6859b2STodor Tomov csiphy->fmt[MSM_CSIPHY_PAD_SINK].code); 120ec6859b2STodor Tomov u8 num_lanes = csiphy->cfg.csi2->lane_cfg.num_data; 121ec6859b2STodor Tomov u64 min_rate = pixel_clock * bpp / (2 * num_lanes * 4); 122ec6859b2STodor Tomov long round_rate; 123ec6859b2STodor Tomov 124ec6859b2STodor Tomov camss_add_clock_margin(&min_rate); 125ec6859b2STodor Tomov 126ec6859b2STodor Tomov for (j = 0; j < clock->nfreqs; j++) 127ec6859b2STodor Tomov if (min_rate < clock->freq[j]) 128ec6859b2STodor Tomov break; 129ec6859b2STodor Tomov 130ec6859b2STodor Tomov if (j == clock->nfreqs) { 131ec6859b2STodor Tomov dev_err(dev, 132ec6859b2STodor Tomov "Pixel clock is too high for CSIPHY\n"); 133ec6859b2STodor Tomov return -EINVAL; 134ec6859b2STodor Tomov } 135ec6859b2STodor Tomov 136ec6859b2STodor Tomov /* if sensor pixel clock is not available */ 137ec6859b2STodor Tomov /* set highest possible CSIPHY clock rate */ 138ec6859b2STodor Tomov if (min_rate == 0) 139ec6859b2STodor Tomov j = clock->nfreqs - 1; 140ec6859b2STodor Tomov 141ec6859b2STodor Tomov round_rate = clk_round_rate(clock->clk, clock->freq[j]); 142ec6859b2STodor Tomov if (round_rate < 0) { 143ec6859b2STodor Tomov dev_err(dev, "clk round rate failed: %ld\n", 144ec6859b2STodor Tomov round_rate); 145ec6859b2STodor Tomov return -EINVAL; 146ec6859b2STodor Tomov } 147ec6859b2STodor Tomov 148ec6859b2STodor Tomov csiphy->timer_clk_rate = round_rate; 149ec6859b2STodor Tomov 150ec6859b2STodor Tomov ret = clk_set_rate(clock->clk, csiphy->timer_clk_rate); 151ec6859b2STodor Tomov if (ret < 0) { 152ec6859b2STodor Tomov dev_err(dev, "clk set rate failed: %d\n", ret); 153ec6859b2STodor Tomov return ret; 154ec6859b2STodor Tomov } 155ec6859b2STodor Tomov } 156ec6859b2STodor Tomov } 157ec6859b2STodor Tomov 158ec6859b2STodor Tomov return 0; 159ec6859b2STodor Tomov } 160ec6859b2STodor Tomov 161ec6859b2STodor Tomov /* 162ec6859b2STodor Tomov * csiphy_set_power - Power on/off CSIPHY module 163ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 164ec6859b2STodor Tomov * @on: Requested power state 165ec6859b2STodor Tomov * 166ec6859b2STodor Tomov * Return 0 on success or a negative error code otherwise 167ec6859b2STodor Tomov */ 168ec6859b2STodor Tomov static int csiphy_set_power(struct v4l2_subdev *sd, int on) 169ec6859b2STodor Tomov { 170ec6859b2STodor Tomov struct csiphy_device *csiphy = v4l2_get_subdevdata(sd); 1719c3e59deSTodor Tomov struct device *dev = csiphy->camss->dev; 172ec6859b2STodor Tomov 173ec6859b2STodor Tomov if (on) { 174ec6859b2STodor Tomov int ret; 175ec6859b2STodor Tomov 17602afa816STodor Tomov ret = pm_runtime_get_sync(dev); 177d0675b67SQiushi Wu if (ret < 0) { 178d0675b67SQiushi Wu pm_runtime_put_sync(dev); 179ec6859b2STodor Tomov return ret; 180d0675b67SQiushi Wu } 181ec6859b2STodor Tomov 18202afa816STodor Tomov ret = csiphy_set_clock_rates(csiphy); 18302afa816STodor Tomov if (ret < 0) { 18402afa816STodor Tomov pm_runtime_put_sync(dev); 185ec6859b2STodor Tomov return ret; 18602afa816STodor Tomov } 18702afa816STodor Tomov 18802afa816STodor Tomov ret = camss_enable_clocks(csiphy->nclocks, csiphy->clock, dev); 18902afa816STodor Tomov if (ret < 0) { 19002afa816STodor Tomov pm_runtime_put_sync(dev); 19102afa816STodor Tomov return ret; 19202afa816STodor Tomov } 193ec6859b2STodor Tomov 194ec6859b2STodor Tomov enable_irq(csiphy->irq); 195ec6859b2STodor Tomov 196516e8f0fSTodor Tomov csiphy->ops->reset(csiphy); 197ec6859b2STodor Tomov 198516e8f0fSTodor Tomov csiphy->ops->hw_version_read(csiphy, dev); 199ec6859b2STodor Tomov } else { 200ec6859b2STodor Tomov disable_irq(csiphy->irq); 201ec6859b2STodor Tomov 202ec6859b2STodor Tomov camss_disable_clocks(csiphy->nclocks, csiphy->clock); 20302afa816STodor Tomov 20402afa816STodor Tomov pm_runtime_put_sync(dev); 205ec6859b2STodor Tomov } 206ec6859b2STodor Tomov 207ec6859b2STodor Tomov return 0; 208ec6859b2STodor Tomov } 209ec6859b2STodor Tomov 210ec6859b2STodor Tomov /* 211ec6859b2STodor Tomov * csiphy_get_lane_mask - Calculate CSI2 lane mask configuration parameter 212ec6859b2STodor Tomov * @lane_cfg - CSI2 lane configuration 213ec6859b2STodor Tomov * 214ec6859b2STodor Tomov * Return lane mask 215ec6859b2STodor Tomov */ 216ec6859b2STodor Tomov static u8 csiphy_get_lane_mask(struct csiphy_lanes_cfg *lane_cfg) 217ec6859b2STodor Tomov { 218ec6859b2STodor Tomov u8 lane_mask; 219ec6859b2STodor Tomov int i; 220ec6859b2STodor Tomov 221ec6859b2STodor Tomov lane_mask = 1 << lane_cfg->clk.pos; 222ec6859b2STodor Tomov 223ec6859b2STodor Tomov for (i = 0; i < lane_cfg->num_data; i++) 224ec6859b2STodor Tomov lane_mask |= 1 << lane_cfg->data[i].pos; 225ec6859b2STodor Tomov 226ec6859b2STodor Tomov return lane_mask; 227ec6859b2STodor Tomov } 228ec6859b2STodor Tomov 229ec6859b2STodor Tomov /* 230ec6859b2STodor Tomov * csiphy_stream_on - Enable streaming on CSIPHY module 231ec6859b2STodor Tomov * @csiphy: CSIPHY device 232ec6859b2STodor Tomov * 233ec6859b2STodor Tomov * Helper function to enable streaming on CSIPHY module. 234ec6859b2STodor Tomov * Main configuration of CSIPHY module is also done here. 235ec6859b2STodor Tomov * 236ec6859b2STodor Tomov * Return 0 on success or a negative error code otherwise 237ec6859b2STodor Tomov */ 238ec6859b2STodor Tomov static int csiphy_stream_on(struct csiphy_device *csiphy) 239ec6859b2STodor Tomov { 240ec6859b2STodor Tomov struct csiphy_config *cfg = &csiphy->cfg; 241516e8f0fSTodor Tomov u32 pixel_clock; 242ec6859b2STodor Tomov u8 lane_mask = csiphy_get_lane_mask(&cfg->csi2->lane_cfg); 243cba3819dSTodor Tomov u8 bpp = csiphy_get_bpp(csiphy->formats, csiphy->nformats, 244cba3819dSTodor Tomov csiphy->fmt[MSM_CSIPHY_PAD_SINK].code); 245ec6859b2STodor Tomov u8 val; 246516e8f0fSTodor Tomov int ret; 247ec6859b2STodor Tomov 248516e8f0fSTodor Tomov ret = camss_get_pixel_clock(&csiphy->subdev.entity, &pixel_clock); 249516e8f0fSTodor Tomov if (ret) { 250516e8f0fSTodor Tomov dev_err(csiphy->camss->dev, 251516e8f0fSTodor Tomov "Cannot get CSI2 transmitter's pixel clock\n"); 252ec6859b2STodor Tomov return -EINVAL; 253516e8f0fSTodor Tomov } 254516e8f0fSTodor Tomov if (!pixel_clock) { 255516e8f0fSTodor Tomov dev_err(csiphy->camss->dev, 256516e8f0fSTodor Tomov "Got pixel clock == 0, cannot continue\n"); 257516e8f0fSTodor Tomov return -EINVAL; 258516e8f0fSTodor Tomov } 259ec6859b2STodor Tomov 260ec6859b2STodor Tomov val = readl_relaxed(csiphy->base_clk_mux); 261ec6859b2STodor Tomov if (cfg->combo_mode && (lane_mask & 0x18) == 0x18) { 262ec6859b2STodor Tomov val &= ~0xf0; 263ec6859b2STodor Tomov val |= cfg->csid_id << 4; 264ec6859b2STodor Tomov } else { 265ec6859b2STodor Tomov val &= ~0xf; 266ec6859b2STodor Tomov val |= cfg->csid_id; 267ec6859b2STodor Tomov } 268ec6859b2STodor Tomov writel_relaxed(val, csiphy->base_clk_mux); 2695ba913b3STodor Tomov wmb(); 270ec6859b2STodor Tomov 271516e8f0fSTodor Tomov csiphy->ops->lanes_enable(csiphy, cfg, pixel_clock, bpp, lane_mask); 272ec6859b2STodor Tomov 273ec6859b2STodor Tomov return 0; 274ec6859b2STodor Tomov } 275ec6859b2STodor Tomov 276ec6859b2STodor Tomov /* 277ec6859b2STodor Tomov * csiphy_stream_off - Disable streaming on CSIPHY module 278ec6859b2STodor Tomov * @csiphy: CSIPHY device 279ec6859b2STodor Tomov * 280ec6859b2STodor Tomov * Helper function to disable streaming on CSIPHY module 281ec6859b2STodor Tomov */ 282ec6859b2STodor Tomov static void csiphy_stream_off(struct csiphy_device *csiphy) 283ec6859b2STodor Tomov { 284369f81f3STodor Tomov csiphy->ops->lanes_disable(csiphy, &csiphy->cfg); 285ec6859b2STodor Tomov } 286ec6859b2STodor Tomov 287ec6859b2STodor Tomov 288ec6859b2STodor Tomov /* 289ec6859b2STodor Tomov * csiphy_set_stream - Enable/disable streaming on CSIPHY module 290ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 291ec6859b2STodor Tomov * @enable: Requested streaming state 292ec6859b2STodor Tomov * 293ec6859b2STodor Tomov * Return 0 on success or a negative error code otherwise 294ec6859b2STodor Tomov */ 295ec6859b2STodor Tomov static int csiphy_set_stream(struct v4l2_subdev *sd, int enable) 296ec6859b2STodor Tomov { 297ec6859b2STodor Tomov struct csiphy_device *csiphy = v4l2_get_subdevdata(sd); 298ec6859b2STodor Tomov int ret = 0; 299ec6859b2STodor Tomov 300ec6859b2STodor Tomov if (enable) 301ec6859b2STodor Tomov ret = csiphy_stream_on(csiphy); 302ec6859b2STodor Tomov else 303ec6859b2STodor Tomov csiphy_stream_off(csiphy); 304ec6859b2STodor Tomov 305ec6859b2STodor Tomov return ret; 306ec6859b2STodor Tomov } 307ec6859b2STodor Tomov 308ec6859b2STodor Tomov /* 309ec6859b2STodor Tomov * __csiphy_get_format - Get pointer to format structure 310ec6859b2STodor Tomov * @csiphy: CSIPHY device 311ec6859b2STodor Tomov * @cfg: V4L2 subdev pad configuration 312ec6859b2STodor Tomov * @pad: pad from which format is requested 313ec6859b2STodor Tomov * @which: TRY or ACTIVE format 314ec6859b2STodor Tomov * 315ec6859b2STodor Tomov * Return pointer to TRY or ACTIVE format structure 316ec6859b2STodor Tomov */ 317ec6859b2STodor Tomov static struct v4l2_mbus_framefmt * 318ec6859b2STodor Tomov __csiphy_get_format(struct csiphy_device *csiphy, 319ec6859b2STodor Tomov struct v4l2_subdev_pad_config *cfg, 320ec6859b2STodor Tomov unsigned int pad, 321ec6859b2STodor Tomov enum v4l2_subdev_format_whence which) 322ec6859b2STodor Tomov { 323ec6859b2STodor Tomov if (which == V4L2_SUBDEV_FORMAT_TRY) 324ec6859b2STodor Tomov return v4l2_subdev_get_try_format(&csiphy->subdev, cfg, pad); 325ec6859b2STodor Tomov 326ec6859b2STodor Tomov return &csiphy->fmt[pad]; 327ec6859b2STodor Tomov } 328ec6859b2STodor Tomov 329ec6859b2STodor Tomov /* 330ec6859b2STodor Tomov * csiphy_try_format - Handle try format by pad subdev method 331ec6859b2STodor Tomov * @csiphy: CSIPHY device 332ec6859b2STodor Tomov * @cfg: V4L2 subdev pad configuration 333ec6859b2STodor Tomov * @pad: pad on which format is requested 334ec6859b2STodor Tomov * @fmt: pointer to v4l2 format structure 335ec6859b2STodor Tomov * @which: wanted subdev format 336ec6859b2STodor Tomov */ 337ec6859b2STodor Tomov static void csiphy_try_format(struct csiphy_device *csiphy, 338ec6859b2STodor Tomov struct v4l2_subdev_pad_config *cfg, 339ec6859b2STodor Tomov unsigned int pad, 340ec6859b2STodor Tomov struct v4l2_mbus_framefmt *fmt, 341ec6859b2STodor Tomov enum v4l2_subdev_format_whence which) 342ec6859b2STodor Tomov { 343ec6859b2STodor Tomov unsigned int i; 344ec6859b2STodor Tomov 345ec6859b2STodor Tomov switch (pad) { 346ec6859b2STodor Tomov case MSM_CSIPHY_PAD_SINK: 347ec6859b2STodor Tomov /* Set format on sink pad */ 348ec6859b2STodor Tomov 349cba3819dSTodor Tomov for (i = 0; i < csiphy->nformats; i++) 350cba3819dSTodor Tomov if (fmt->code == csiphy->formats[i].code) 351ec6859b2STodor Tomov break; 352ec6859b2STodor Tomov 353ec6859b2STodor Tomov /* If not found, use UYVY as default */ 354cba3819dSTodor Tomov if (i >= csiphy->nformats) 355ec6859b2STodor Tomov fmt->code = MEDIA_BUS_FMT_UYVY8_2X8; 356ec6859b2STodor Tomov 357ec6859b2STodor Tomov fmt->width = clamp_t(u32, fmt->width, 1, 8191); 358ec6859b2STodor Tomov fmt->height = clamp_t(u32, fmt->height, 1, 8191); 359ec6859b2STodor Tomov 360ec6859b2STodor Tomov fmt->field = V4L2_FIELD_NONE; 361ec6859b2STodor Tomov fmt->colorspace = V4L2_COLORSPACE_SRGB; 362ec6859b2STodor Tomov 363ec6859b2STodor Tomov break; 364ec6859b2STodor Tomov 365ec6859b2STodor Tomov case MSM_CSIPHY_PAD_SRC: 366ec6859b2STodor Tomov /* Set and return a format same as sink pad */ 367ec6859b2STodor Tomov 368ec6859b2STodor Tomov *fmt = *__csiphy_get_format(csiphy, cfg, MSM_CSID_PAD_SINK, 369ec6859b2STodor Tomov which); 370ec6859b2STodor Tomov 371ec6859b2STodor Tomov break; 372ec6859b2STodor Tomov } 373ec6859b2STodor Tomov } 374ec6859b2STodor Tomov 375ec6859b2STodor Tomov /* 376ec6859b2STodor Tomov * csiphy_enum_mbus_code - Handle pixel format enumeration 377ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 378ec6859b2STodor Tomov * @cfg: V4L2 subdev pad configuration 379ec6859b2STodor Tomov * @code: pointer to v4l2_subdev_mbus_code_enum structure 380ec6859b2STodor Tomov * return -EINVAL or zero on success 381ec6859b2STodor Tomov */ 382ec6859b2STodor Tomov static int csiphy_enum_mbus_code(struct v4l2_subdev *sd, 383ec6859b2STodor Tomov struct v4l2_subdev_pad_config *cfg, 384ec6859b2STodor Tomov struct v4l2_subdev_mbus_code_enum *code) 385ec6859b2STodor Tomov { 386ec6859b2STodor Tomov struct csiphy_device *csiphy = v4l2_get_subdevdata(sd); 387ec6859b2STodor Tomov struct v4l2_mbus_framefmt *format; 388ec6859b2STodor Tomov 389ec6859b2STodor Tomov if (code->pad == MSM_CSIPHY_PAD_SINK) { 390cba3819dSTodor Tomov if (code->index >= csiphy->nformats) 391ec6859b2STodor Tomov return -EINVAL; 392ec6859b2STodor Tomov 393cba3819dSTodor Tomov code->code = csiphy->formats[code->index].code; 394ec6859b2STodor Tomov } else { 395ec6859b2STodor Tomov if (code->index > 0) 396ec6859b2STodor Tomov return -EINVAL; 397ec6859b2STodor Tomov 398ec6859b2STodor Tomov format = __csiphy_get_format(csiphy, cfg, MSM_CSIPHY_PAD_SINK, 399ec6859b2STodor Tomov code->which); 400ec6859b2STodor Tomov 401ec6859b2STodor Tomov code->code = format->code; 402ec6859b2STodor Tomov } 403ec6859b2STodor Tomov 404ec6859b2STodor Tomov return 0; 405ec6859b2STodor Tomov } 406ec6859b2STodor Tomov 407ec6859b2STodor Tomov /* 408ec6859b2STodor Tomov * csiphy_enum_frame_size - Handle frame size enumeration 409ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 410ec6859b2STodor Tomov * @cfg: V4L2 subdev pad configuration 411ec6859b2STodor Tomov * @fse: pointer to v4l2_subdev_frame_size_enum structure 412ec6859b2STodor Tomov * return -EINVAL or zero on success 413ec6859b2STodor Tomov */ 414ec6859b2STodor Tomov static int csiphy_enum_frame_size(struct v4l2_subdev *sd, 415ec6859b2STodor Tomov struct v4l2_subdev_pad_config *cfg, 416ec6859b2STodor Tomov struct v4l2_subdev_frame_size_enum *fse) 417ec6859b2STodor Tomov { 418ec6859b2STodor Tomov struct csiphy_device *csiphy = v4l2_get_subdevdata(sd); 419ec6859b2STodor Tomov struct v4l2_mbus_framefmt format; 420ec6859b2STodor Tomov 421ec6859b2STodor Tomov if (fse->index != 0) 422ec6859b2STodor Tomov return -EINVAL; 423ec6859b2STodor Tomov 424ec6859b2STodor Tomov format.code = fse->code; 425ec6859b2STodor Tomov format.width = 1; 426ec6859b2STodor Tomov format.height = 1; 427ec6859b2STodor Tomov csiphy_try_format(csiphy, cfg, fse->pad, &format, fse->which); 428ec6859b2STodor Tomov fse->min_width = format.width; 429ec6859b2STodor Tomov fse->min_height = format.height; 430ec6859b2STodor Tomov 431ec6859b2STodor Tomov if (format.code != fse->code) 432ec6859b2STodor Tomov return -EINVAL; 433ec6859b2STodor Tomov 434ec6859b2STodor Tomov format.code = fse->code; 435ec6859b2STodor Tomov format.width = -1; 436ec6859b2STodor Tomov format.height = -1; 437ec6859b2STodor Tomov csiphy_try_format(csiphy, cfg, fse->pad, &format, fse->which); 438ec6859b2STodor Tomov fse->max_width = format.width; 439ec6859b2STodor Tomov fse->max_height = format.height; 440ec6859b2STodor Tomov 441ec6859b2STodor Tomov return 0; 442ec6859b2STodor Tomov } 443ec6859b2STodor Tomov 444ec6859b2STodor Tomov /* 445ec6859b2STodor Tomov * csiphy_get_format - Handle get format by pads subdev method 446ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 447ec6859b2STodor Tomov * @cfg: V4L2 subdev pad configuration 448ec6859b2STodor Tomov * @fmt: pointer to v4l2 subdev format structure 449ec6859b2STodor Tomov * 450ec6859b2STodor Tomov * Return -EINVAL or zero on success 451ec6859b2STodor Tomov */ 452ec6859b2STodor Tomov static int csiphy_get_format(struct v4l2_subdev *sd, 453ec6859b2STodor Tomov struct v4l2_subdev_pad_config *cfg, 454ec6859b2STodor Tomov struct v4l2_subdev_format *fmt) 455ec6859b2STodor Tomov { 456ec6859b2STodor Tomov struct csiphy_device *csiphy = v4l2_get_subdevdata(sd); 457ec6859b2STodor Tomov struct v4l2_mbus_framefmt *format; 458ec6859b2STodor Tomov 459ec6859b2STodor Tomov format = __csiphy_get_format(csiphy, cfg, fmt->pad, fmt->which); 460ec6859b2STodor Tomov if (format == NULL) 461ec6859b2STodor Tomov return -EINVAL; 462ec6859b2STodor Tomov 463ec6859b2STodor Tomov fmt->format = *format; 464ec6859b2STodor Tomov 465ec6859b2STodor Tomov return 0; 466ec6859b2STodor Tomov } 467ec6859b2STodor Tomov 468ec6859b2STodor Tomov /* 469ec6859b2STodor Tomov * csiphy_set_format - Handle set format by pads subdev method 470ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 471ec6859b2STodor Tomov * @cfg: V4L2 subdev pad configuration 472ec6859b2STodor Tomov * @fmt: pointer to v4l2 subdev format structure 473ec6859b2STodor Tomov * 474ec6859b2STodor Tomov * Return -EINVAL or zero on success 475ec6859b2STodor Tomov */ 476ec6859b2STodor Tomov static int csiphy_set_format(struct v4l2_subdev *sd, 477ec6859b2STodor Tomov struct v4l2_subdev_pad_config *cfg, 478ec6859b2STodor Tomov struct v4l2_subdev_format *fmt) 479ec6859b2STodor Tomov { 480ec6859b2STodor Tomov struct csiphy_device *csiphy = v4l2_get_subdevdata(sd); 481ec6859b2STodor Tomov struct v4l2_mbus_framefmt *format; 482ec6859b2STodor Tomov 483ec6859b2STodor Tomov format = __csiphy_get_format(csiphy, cfg, fmt->pad, fmt->which); 484ec6859b2STodor Tomov if (format == NULL) 485ec6859b2STodor Tomov return -EINVAL; 486ec6859b2STodor Tomov 487ec6859b2STodor Tomov csiphy_try_format(csiphy, cfg, fmt->pad, &fmt->format, fmt->which); 488ec6859b2STodor Tomov *format = fmt->format; 489ec6859b2STodor Tomov 490ec6859b2STodor Tomov /* Propagate the format from sink to source */ 491ec6859b2STodor Tomov if (fmt->pad == MSM_CSIPHY_PAD_SINK) { 492ec6859b2STodor Tomov format = __csiphy_get_format(csiphy, cfg, MSM_CSIPHY_PAD_SRC, 493ec6859b2STodor Tomov fmt->which); 494ec6859b2STodor Tomov 495ec6859b2STodor Tomov *format = fmt->format; 496ec6859b2STodor Tomov csiphy_try_format(csiphy, cfg, MSM_CSIPHY_PAD_SRC, format, 497ec6859b2STodor Tomov fmt->which); 498ec6859b2STodor Tomov } 499ec6859b2STodor Tomov 500ec6859b2STodor Tomov return 0; 501ec6859b2STodor Tomov } 502ec6859b2STodor Tomov 503ec6859b2STodor Tomov /* 504ec6859b2STodor Tomov * csiphy_init_formats - Initialize formats on all pads 505ec6859b2STodor Tomov * @sd: CSIPHY V4L2 subdevice 506ec6859b2STodor Tomov * @fh: V4L2 subdev file handle 507ec6859b2STodor Tomov * 508ec6859b2STodor Tomov * Initialize all pad formats with default values. 509ec6859b2STodor Tomov * 510ec6859b2STodor Tomov * Return 0 on success or a negative error code otherwise 511ec6859b2STodor Tomov */ 512ec6859b2STodor Tomov static int csiphy_init_formats(struct v4l2_subdev *sd, 513ec6859b2STodor Tomov struct v4l2_subdev_fh *fh) 514ec6859b2STodor Tomov { 515ec6859b2STodor Tomov struct v4l2_subdev_format format = { 516ec6859b2STodor Tomov .pad = MSM_CSIPHY_PAD_SINK, 517ec6859b2STodor Tomov .which = fh ? V4L2_SUBDEV_FORMAT_TRY : 518ec6859b2STodor Tomov V4L2_SUBDEV_FORMAT_ACTIVE, 519ec6859b2STodor Tomov .format = { 520ec6859b2STodor Tomov .code = MEDIA_BUS_FMT_UYVY8_2X8, 521ec6859b2STodor Tomov .width = 1920, 522ec6859b2STodor Tomov .height = 1080 523ec6859b2STodor Tomov } 524ec6859b2STodor Tomov }; 525ec6859b2STodor Tomov 526ec6859b2STodor Tomov return csiphy_set_format(sd, fh ? fh->pad : NULL, &format); 527ec6859b2STodor Tomov } 528ec6859b2STodor Tomov 529ec6859b2STodor Tomov /* 530ec6859b2STodor Tomov * msm_csiphy_subdev_init - Initialize CSIPHY device structure and resources 531ec6859b2STodor Tomov * @csiphy: CSIPHY device 532ec6859b2STodor Tomov * @res: CSIPHY module resources table 533ec6859b2STodor Tomov * @id: CSIPHY module id 534ec6859b2STodor Tomov * 535ec6859b2STodor Tomov * Return 0 on success or a negative error code otherwise 536ec6859b2STodor Tomov */ 5379c3e59deSTodor Tomov int msm_csiphy_subdev_init(struct camss *camss, 5389c3e59deSTodor Tomov struct csiphy_device *csiphy, 539ec6859b2STodor Tomov const struct resources *res, u8 id) 540ec6859b2STodor Tomov { 5419c3e59deSTodor Tomov struct device *dev = camss->dev; 542ec6859b2STodor Tomov struct platform_device *pdev = to_platform_device(dev); 543ec6859b2STodor Tomov struct resource *r; 544ec6859b2STodor Tomov int i, j; 545ec6859b2STodor Tomov int ret; 546ec6859b2STodor Tomov 5479c3e59deSTodor Tomov csiphy->camss = camss; 548ec6859b2STodor Tomov csiphy->id = id; 549ec6859b2STodor Tomov csiphy->cfg.combo_mode = 0; 550ec6859b2STodor Tomov 551cba3819dSTodor Tomov if (camss->version == CAMSS_8x16) { 552516e8f0fSTodor Tomov csiphy->ops = &csiphy_ops_2ph_1_0; 553cba3819dSTodor Tomov csiphy->formats = csiphy_formats_8x16; 554cba3819dSTodor Tomov csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x16); 5559e5d1581SAngeloGioacchino Del Regno } else if (camss->version == CAMSS_8x96 || 5569e5d1581SAngeloGioacchino Del Regno camss->version == CAMSS_660) { 5574138a88bSTodor Tomov csiphy->ops = &csiphy_ops_3ph_1_0; 558cba3819dSTodor Tomov csiphy->formats = csiphy_formats_8x96; 559cba3819dSTodor Tomov csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x96); 560cba3819dSTodor Tomov } else { 561516e8f0fSTodor Tomov return -EINVAL; 562cba3819dSTodor Tomov } 563516e8f0fSTodor Tomov 564ec6859b2STodor Tomov /* Memory */ 565ec6859b2STodor Tomov 566ec6859b2STodor Tomov r = platform_get_resource_byname(pdev, IORESOURCE_MEM, res->reg[0]); 567ec6859b2STodor Tomov csiphy->base = devm_ioremap_resource(dev, r); 568ec6859b2STodor Tomov if (IS_ERR(csiphy->base)) { 569ec6859b2STodor Tomov dev_err(dev, "could not map memory\n"); 570ec6859b2STodor Tomov return PTR_ERR(csiphy->base); 571ec6859b2STodor Tomov } 572ec6859b2STodor Tomov 573ec6859b2STodor Tomov r = platform_get_resource_byname(pdev, IORESOURCE_MEM, res->reg[1]); 574ec6859b2STodor Tomov csiphy->base_clk_mux = devm_ioremap_resource(dev, r); 575ec6859b2STodor Tomov if (IS_ERR(csiphy->base_clk_mux)) { 576ec6859b2STodor Tomov dev_err(dev, "could not map memory\n"); 577ec6859b2STodor Tomov return PTR_ERR(csiphy->base_clk_mux); 578ec6859b2STodor Tomov } 579ec6859b2STodor Tomov 580ec6859b2STodor Tomov /* Interrupt */ 581ec6859b2STodor Tomov 582ec6859b2STodor Tomov r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, 583ec6859b2STodor Tomov res->interrupt[0]); 584ec6859b2STodor Tomov if (!r) { 585ec6859b2STodor Tomov dev_err(dev, "missing IRQ\n"); 586ec6859b2STodor Tomov return -EINVAL; 587ec6859b2STodor Tomov } 588ec6859b2STodor Tomov 589ec6859b2STodor Tomov csiphy->irq = r->start; 590ec6859b2STodor Tomov snprintf(csiphy->irq_name, sizeof(csiphy->irq_name), "%s_%s%d", 591ec6859b2STodor Tomov dev_name(dev), MSM_CSIPHY_NAME, csiphy->id); 592516e8f0fSTodor Tomov 593516e8f0fSTodor Tomov ret = devm_request_irq(dev, csiphy->irq, csiphy->ops->isr, 594ec6859b2STodor Tomov IRQF_TRIGGER_RISING, csiphy->irq_name, csiphy); 595ec6859b2STodor Tomov if (ret < 0) { 596ec6859b2STodor Tomov dev_err(dev, "request_irq failed: %d\n", ret); 597ec6859b2STodor Tomov return ret; 598ec6859b2STodor Tomov } 599ec6859b2STodor Tomov 600ec6859b2STodor Tomov disable_irq(csiphy->irq); 601ec6859b2STodor Tomov 602ec6859b2STodor Tomov /* Clocks */ 603ec6859b2STodor Tomov 604ec6859b2STodor Tomov csiphy->nclocks = 0; 605ec6859b2STodor Tomov while (res->clock[csiphy->nclocks]) 606ec6859b2STodor Tomov csiphy->nclocks++; 607ec6859b2STodor Tomov 608ec6859b2STodor Tomov csiphy->clock = devm_kcalloc(dev, 609ec6859b2STodor Tomov csiphy->nclocks, sizeof(*csiphy->clock), 610ec6859b2STodor Tomov GFP_KERNEL); 611ec6859b2STodor Tomov if (!csiphy->clock) 612ec6859b2STodor Tomov return -ENOMEM; 613ec6859b2STodor Tomov 614*4863b93cSAngeloGioacchino Del Regno csiphy->rate_set = devm_kcalloc(dev, 615*4863b93cSAngeloGioacchino Del Regno csiphy->nclocks, 616*4863b93cSAngeloGioacchino Del Regno sizeof(*csiphy->rate_set), 617*4863b93cSAngeloGioacchino Del Regno GFP_KERNEL); 618*4863b93cSAngeloGioacchino Del Regno if (!csiphy->rate_set) 619*4863b93cSAngeloGioacchino Del Regno return -ENOMEM; 620*4863b93cSAngeloGioacchino Del Regno 621ec6859b2STodor Tomov for (i = 0; i < csiphy->nclocks; i++) { 622ec6859b2STodor Tomov struct camss_clock *clock = &csiphy->clock[i]; 623ec6859b2STodor Tomov 624ec6859b2STodor Tomov clock->clk = devm_clk_get(dev, res->clock[i]); 625ec6859b2STodor Tomov if (IS_ERR(clock->clk)) 626ec6859b2STodor Tomov return PTR_ERR(clock->clk); 627ec6859b2STodor Tomov 628ec6859b2STodor Tomov clock->name = res->clock[i]; 629ec6859b2STodor Tomov 630ec6859b2STodor Tomov clock->nfreqs = 0; 631ec6859b2STodor Tomov while (res->clock_rate[i][clock->nfreqs]) 632ec6859b2STodor Tomov clock->nfreqs++; 633ec6859b2STodor Tomov 634ec6859b2STodor Tomov if (!clock->nfreqs) { 635ec6859b2STodor Tomov clock->freq = NULL; 636ec6859b2STodor Tomov continue; 637ec6859b2STodor Tomov } 638ec6859b2STodor Tomov 639ec6859b2STodor Tomov clock->freq = devm_kcalloc(dev, 640ec6859b2STodor Tomov clock->nfreqs, 641ec6859b2STodor Tomov sizeof(*clock->freq), 642ec6859b2STodor Tomov GFP_KERNEL); 643ec6859b2STodor Tomov if (!clock->freq) 644ec6859b2STodor Tomov return -ENOMEM; 645ec6859b2STodor Tomov 646ec6859b2STodor Tomov for (j = 0; j < clock->nfreqs; j++) 647ec6859b2STodor Tomov clock->freq[j] = res->clock_rate[i][j]; 648*4863b93cSAngeloGioacchino Del Regno 649*4863b93cSAngeloGioacchino Del Regno if (!strcmp(clock->name, "csiphy0_timer") || 650*4863b93cSAngeloGioacchino Del Regno !strcmp(clock->name, "csiphy1_timer") || 651*4863b93cSAngeloGioacchino Del Regno !strcmp(clock->name, "csiphy2_timer")) 652*4863b93cSAngeloGioacchino Del Regno csiphy->rate_set[i] = true; 653*4863b93cSAngeloGioacchino Del Regno 654*4863b93cSAngeloGioacchino Del Regno if (camss->version == CAMSS_660 && 655*4863b93cSAngeloGioacchino Del Regno (!strcmp(clock->name, "csi0_phy") || 656*4863b93cSAngeloGioacchino Del Regno !strcmp(clock->name, "csi1_phy") || 657*4863b93cSAngeloGioacchino Del Regno !strcmp(clock->name, "csi2_phy"))) 658*4863b93cSAngeloGioacchino Del Regno csiphy->rate_set[i] = true; 659ec6859b2STodor Tomov } 660ec6859b2STodor Tomov 661ec6859b2STodor Tomov return 0; 662ec6859b2STodor Tomov } 663ec6859b2STodor Tomov 664ec6859b2STodor Tomov /* 665ec6859b2STodor Tomov * csiphy_link_setup - Setup CSIPHY connections 666ec6859b2STodor Tomov * @entity: Pointer to media entity structure 667ec6859b2STodor Tomov * @local: Pointer to local pad 668ec6859b2STodor Tomov * @remote: Pointer to remote pad 669ec6859b2STodor Tomov * @flags: Link flags 670ec6859b2STodor Tomov * 671ec6859b2STodor Tomov * Rreturn 0 on success 672ec6859b2STodor Tomov */ 673ec6859b2STodor Tomov static int csiphy_link_setup(struct media_entity *entity, 674ec6859b2STodor Tomov const struct media_pad *local, 675ec6859b2STodor Tomov const struct media_pad *remote, u32 flags) 676ec6859b2STodor Tomov { 677ec6859b2STodor Tomov if ((local->flags & MEDIA_PAD_FL_SOURCE) && 678ec6859b2STodor Tomov (flags & MEDIA_LNK_FL_ENABLED)) { 679ec6859b2STodor Tomov struct v4l2_subdev *sd; 680ec6859b2STodor Tomov struct csiphy_device *csiphy; 681ec6859b2STodor Tomov struct csid_device *csid; 682ec6859b2STodor Tomov 683ec6859b2STodor Tomov if (media_entity_remote_pad(local)) 684ec6859b2STodor Tomov return -EBUSY; 685ec6859b2STodor Tomov 686ec6859b2STodor Tomov sd = media_entity_to_v4l2_subdev(entity); 687ec6859b2STodor Tomov csiphy = v4l2_get_subdevdata(sd); 688ec6859b2STodor Tomov 689ec6859b2STodor Tomov sd = media_entity_to_v4l2_subdev(remote->entity); 690ec6859b2STodor Tomov csid = v4l2_get_subdevdata(sd); 691ec6859b2STodor Tomov 692ec6859b2STodor Tomov csiphy->cfg.csid_id = csid->id; 693ec6859b2STodor Tomov } 694ec6859b2STodor Tomov 695ec6859b2STodor Tomov return 0; 696ec6859b2STodor Tomov } 697ec6859b2STodor Tomov 698ec6859b2STodor Tomov static const struct v4l2_subdev_core_ops csiphy_core_ops = { 699ec6859b2STodor Tomov .s_power = csiphy_set_power, 700ec6859b2STodor Tomov }; 701ec6859b2STodor Tomov 702ec6859b2STodor Tomov static const struct v4l2_subdev_video_ops csiphy_video_ops = { 703ec6859b2STodor Tomov .s_stream = csiphy_set_stream, 704ec6859b2STodor Tomov }; 705ec6859b2STodor Tomov 706ec6859b2STodor Tomov static const struct v4l2_subdev_pad_ops csiphy_pad_ops = { 707ec6859b2STodor Tomov .enum_mbus_code = csiphy_enum_mbus_code, 708ec6859b2STodor Tomov .enum_frame_size = csiphy_enum_frame_size, 709ec6859b2STodor Tomov .get_fmt = csiphy_get_format, 710ec6859b2STodor Tomov .set_fmt = csiphy_set_format, 711ec6859b2STodor Tomov }; 712ec6859b2STodor Tomov 713ec6859b2STodor Tomov static const struct v4l2_subdev_ops csiphy_v4l2_ops = { 714ec6859b2STodor Tomov .core = &csiphy_core_ops, 715ec6859b2STodor Tomov .video = &csiphy_video_ops, 716ec6859b2STodor Tomov .pad = &csiphy_pad_ops, 717ec6859b2STodor Tomov }; 718ec6859b2STodor Tomov 719ec6859b2STodor Tomov static const struct v4l2_subdev_internal_ops csiphy_v4l2_internal_ops = { 720ec6859b2STodor Tomov .open = csiphy_init_formats, 721ec6859b2STodor Tomov }; 722ec6859b2STodor Tomov 723ec6859b2STodor Tomov static const struct media_entity_operations csiphy_media_ops = { 724ec6859b2STodor Tomov .link_setup = csiphy_link_setup, 725ec6859b2STodor Tomov .link_validate = v4l2_subdev_link_validate, 726ec6859b2STodor Tomov }; 727ec6859b2STodor Tomov 728ec6859b2STodor Tomov /* 729ec6859b2STodor Tomov * msm_csiphy_register_entity - Register subdev node for CSIPHY module 730ec6859b2STodor Tomov * @csiphy: CSIPHY device 731ec6859b2STodor Tomov * @v4l2_dev: V4L2 device 732ec6859b2STodor Tomov * 733ec6859b2STodor Tomov * Return 0 on success or a negative error code otherwise 734ec6859b2STodor Tomov */ 735ec6859b2STodor Tomov int msm_csiphy_register_entity(struct csiphy_device *csiphy, 736ec6859b2STodor Tomov struct v4l2_device *v4l2_dev) 737ec6859b2STodor Tomov { 738ec6859b2STodor Tomov struct v4l2_subdev *sd = &csiphy->subdev; 739ec6859b2STodor Tomov struct media_pad *pads = csiphy->pads; 7409c3e59deSTodor Tomov struct device *dev = csiphy->camss->dev; 741ec6859b2STodor Tomov int ret; 742ec6859b2STodor Tomov 743ec6859b2STodor Tomov v4l2_subdev_init(sd, &csiphy_v4l2_ops); 744ec6859b2STodor Tomov sd->internal_ops = &csiphy_v4l2_internal_ops; 745ec6859b2STodor Tomov sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 746ec6859b2STodor Tomov snprintf(sd->name, ARRAY_SIZE(sd->name), "%s%d", 747ec6859b2STodor Tomov MSM_CSIPHY_NAME, csiphy->id); 748ec6859b2STodor Tomov v4l2_set_subdevdata(sd, csiphy); 749ec6859b2STodor Tomov 750ec6859b2STodor Tomov ret = csiphy_init_formats(sd, NULL); 751ec6859b2STodor Tomov if (ret < 0) { 752ec6859b2STodor Tomov dev_err(dev, "Failed to init format: %d\n", ret); 753ec6859b2STodor Tomov return ret; 754ec6859b2STodor Tomov } 755ec6859b2STodor Tomov 756ec6859b2STodor Tomov pads[MSM_CSIPHY_PAD_SINK].flags = MEDIA_PAD_FL_SINK; 757ec6859b2STodor Tomov pads[MSM_CSIPHY_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE; 758ec6859b2STodor Tomov 75950795910SAndrey Konovalov sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER; 760ec6859b2STodor Tomov sd->entity.ops = &csiphy_media_ops; 761ec6859b2STodor Tomov ret = media_entity_pads_init(&sd->entity, MSM_CSIPHY_PADS_NUM, pads); 762ec6859b2STodor Tomov if (ret < 0) { 763ec6859b2STodor Tomov dev_err(dev, "Failed to init media entity: %d\n", ret); 764ec6859b2STodor Tomov return ret; 765ec6859b2STodor Tomov } 766ec6859b2STodor Tomov 767ec6859b2STodor Tomov ret = v4l2_device_register_subdev(v4l2_dev, sd); 768ec6859b2STodor Tomov if (ret < 0) { 769ec6859b2STodor Tomov dev_err(dev, "Failed to register subdev: %d\n", ret); 770ec6859b2STodor Tomov media_entity_cleanup(&sd->entity); 771ec6859b2STodor Tomov } 772ec6859b2STodor Tomov 773ec6859b2STodor Tomov return ret; 774ec6859b2STodor Tomov } 775ec6859b2STodor Tomov 776ec6859b2STodor Tomov /* 777ec6859b2STodor Tomov * msm_csiphy_unregister_entity - Unregister CSIPHY module subdev node 778ec6859b2STodor Tomov * @csiphy: CSIPHY device 779ec6859b2STodor Tomov */ 780ec6859b2STodor Tomov void msm_csiphy_unregister_entity(struct csiphy_device *csiphy) 781ec6859b2STodor Tomov { 782ec6859b2STodor Tomov v4l2_device_unregister_subdev(&csiphy->subdev); 783ec6859b2STodor Tomov media_entity_cleanup(&csiphy->subdev.entity); 784ec6859b2STodor Tomov } 785