From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A6694EEA8; Sun, 17 Aug 2025 07:44:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755416653; cv=none; b=hbNbz9hsLhnXLHCGujcgx5/v/N9c0mvsLPZuThivSWdrzVT2qMxe7o7EO01MoGg3d7purLYwBsA0KOSKco1l+QKDLDbJ/7slQuZ/AY4WCcnMPPt0BRyHVEDb0tH/SS0+OG4yjarC58Avr5SGauNEKaIlO6oxnDfS0v6GRFtHm14= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755416653; c=relaxed/simple; bh=RoUUZa5TBFd2V1vaLApIFJ+t3u7RtRS0RZJR2cIwQx8=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=UGskxGNC2DDJ/Vej8MHtvJuHJrGWLqmAroZiRMFBxJbpz/5dYLoRhpaEwBx1ktSnn4/9yUi3M9YXZXgxi0UJR81BRVWSLVgj/WsRzif1yPIF12DiZDo4KL2mFTaHg/zhpMX7qVN8A7ecATnRUgPgN+14g15tZqnfQ/0AFaLEva0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AdGvgNel; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AdGvgNel" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C580BC4CEEB; Sun, 17 Aug 2025 07:44:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755416653; bh=RoUUZa5TBFd2V1vaLApIFJ+t3u7RtRS0RZJR2cIwQx8=; h=Date:Subject:From:To:Cc:References:In-Reply-To:From; b=AdGvgNelB87MJw5UcUK/gU/JZ0aUwnhbixgclibQwXABLSCekC5rXeoJAmu0zdYyb 3ORGlCOO+lWy4IJapV5snzAEyLqcoVdTLxBQIfbvijvqgFKz+BB623+7Xum0y+EVWG IlVKGZO8xuxkCpBYrjcgqUZNApvJteZia/5V5ZCuqPj5pQE0afzpL3I2b2j7awE6E8 x7941U4SNGsV8rAX6jBBoR14Kb+w0wPC7grTJZm7pUcSwJRU3t9IUbgENEMnb3bCLj c1dfHsNmqD/lF4iTGK9yPiGBbOQNtD+VfHTP2g2aCMp/y5foLN6wa6YBzN/j6/Hg96 pho0cA4cz/mlg== Message-ID: <7edff62d-cf12-48f2-9b72-cc1f544aaee3@kernel.org> Date: Sun, 17 Aug 2025 09:44:09 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/2] media: i2c: imx585: Add Sony IMX585 image-sensor driver From: Krzysztof Kozlowski To: Will Whang Cc: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250816055432.131912-1-will@willwhang.com> <20250816055432.131912-3-will@willwhang.com> <7e27b69b-40df-4ac4-aebf-dbd00044b71b@kernel.org> <04fd00bb-beb4-4f35-88fb-bf1cc7691505@kernel.org> <11e35902-a19a-44b2-b816-15a495048d41@kernel.org> Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 17/08/2025 09:35, Krzysztof Kozlowski wrote: > On 17/08/2025 09:15, Will Whang wrote: >> On Sun, Aug 17, 2025 at 12:02 AM Krzysztof Kozlowski wrote: >>> >>> On 17/08/2025 08:46, Will Whang wrote: >>>> On Sat, Aug 16, 2025 at 11:10 PM Krzysztof Kozlowski wrote: >>>>> >>>>> On 16/08/2025 21:58, Will Whang wrote: >>>>>> On Sat, Aug 16, 2025 at 1:04 AM Krzysztof Kozlowski wrote: >>>>>>> >>>>>>> On 16/08/2025 07:54, Will Whang wrote: >>>>>>>> + >>>>>>>> +static int imx585_set_ctrl(struct v4l2_ctrl *ctrl) >>>>>>>> +{ >>>>>>>> + struct imx585 *imx585 = container_of(ctrl->handler, struct imx585, ctrl_handler); >>>>>>>> + const struct imx585_mode *mode, *mode_list; >>>>>>>> + struct v4l2_subdev_state *state; >>>>>>>> + struct v4l2_mbus_framefmt *fmt; >>>>>>>> + unsigned int num_modes; >>>>>>>> + int ret = 0; >>>>>>>> + >>>>>>>> + state = v4l2_subdev_get_locked_active_state(&imx585->sd); >>>>>>>> + fmt = v4l2_subdev_state_get_format(state, 0); >>>>>>>> + >>>>>>>> + get_mode_table(imx585, fmt->code, &mode_list, &num_modes); >>>>>>>> + mode = v4l2_find_nearest_size(mode_list, num_modes, width, height, >>>>>>>> + fmt->width, fmt->height); >>>>>>>> + >>>>>>>> + /* Apply control only when powered (runtime active). */ >>>>>>>> + if (!pm_runtime_get_if_active(imx585->clientdev)) >>>>>>>> + return 0; >>>>>>>> + >>>>>>>> + switch (ctrl->id) { >>>>>>>> + case V4L2_CID_EXPOSURE: { >>>>>>>> + u32 shr = (imx585->vmax - ctrl->val) & ~1U; /* SHR always a multiple of 2 */ >>>>>>>> + >>>>>>>> + dev_dbg(imx585->clientdev, "EXPOSURE=%u -> SHR=%u (VMAX=%u HMAX=%u)\n", >>>>>>>> + ctrl->val, shr, imx585->vmax, imx585->hmax); >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_SHR, shr, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "SHR write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + } >>>>>>>> + case V4L2_CID_ANALOGUE_GAIN: >>>>>>>> + dev_dbg(imx585->clientdev, "ANALOG_GAIN=%u\n", ctrl->val); >>>>>>> >>>>>>> Not much improved. Don't debug V4L2 calls. >>>>>>> >>>>>>> I already commented on this and you just send simialr code. Drop this >>>>>>> completely. >>>>>>> >>>>>> >>>>>> I need to debug V4L2 calls for image quality debugging. I don't >>>>>> understand why I can not have dev_dbg(). >>>>>> What I read from your comments on the previous patch is that you don't >>>>>> want to have a noisy driver and I sorta agree with that but for debug >>>>>> purposes this is not an issue. >>>>>> That is why I move it to dev_dbg instead of removing them, if you >>>>>> think this is too noisy, then just don't turn on debugging. >>>>>> >>>>> >>>>> >>>>> Because you do not debug useful parts of the driver, but only invocation >>>>> of v4l2 controls. >>>>> >>>>> >>>>>>> >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_ANALOG_GAIN, ctrl->val, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "Gain write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + case V4L2_CID_VBLANK: { >>>>>>>> + u32 current_exposure = imx585->exposure->cur.val; >>>>>>>> + >>>>>>>> + imx585->vmax = (mode->height + ctrl->val) & ~1U; >>>>>>>> + >>>>>>>> + current_exposure = clamp_t(u32, current_exposure, >>>>>>>> + IMX585_EXPOSURE_MIN, imx585->vmax - IMX585_SHR_MIN); >>>>>>>> + __v4l2_ctrl_modify_range(imx585->exposure, >>>>>>>> + IMX585_EXPOSURE_MIN, imx585->vmax - IMX585_SHR_MIN, 1, >>>>>>>> + current_exposure); >>>>>>>> + >>>>>>>> + dev_dbg(imx585->clientdev, "VBLANK=%u -> VMAX=%u\n", ctrl->val, imx585->vmax); >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_VMAX, imx585->vmax, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "VMAX write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + } >>>>>>>> + case V4L2_CID_HBLANK: { >>>>>>>> + u64 pixel_rate = (u64)mode->width * IMX585_PIXEL_RATE; >>>>>>>> + u64 hmax; >>>>>>>> + >>>>>>>> + do_div(pixel_rate, mode->min_hmax); >>>>>>>> + hmax = (u64)(mode->width + ctrl->val) * IMX585_PIXEL_RATE; >>>>>>>> + do_div(hmax, pixel_rate); >>>>>>>> + imx585->hmax = (u32)hmax; >>>>>>>> + >>>>>>>> + dev_dbg(imx585->clientdev, "HBLANK=%u -> HMAX=%u\n", ctrl->val, imx585->hmax); >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_HMAX, imx585->hmax, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "HMAX write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + } >>>>>>>> + case V4L2_CID_HFLIP: >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_FLIP_WINMODEH, ctrl->val, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "HFLIP write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + case V4L2_CID_VFLIP: >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_FLIP_WINMODEV, ctrl->val, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "VFLIP write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + case V4L2_CID_BRIGHTNESS: { >>>>>>>> + u16 blacklevel = min_t(u32, ctrl->val, 4095); >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_BLKLEVEL, blacklevel, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err_ratelimited(imx585->clientdev, "BLKLEVEL write failed (%d)\n", ret); >>>>>>>> + break; >>>>>>>> + } >>>>>>>> + default: >>>>>>>> + dev_dbg(imx585->clientdev, "Unhandled ctrl %s: id=0x%x, val=0x%x\n", >>>>>>>> + ctrl->name, ctrl->id, ctrl->val); >>>>>>>> + break; >>>>>>>> + } >>>>>>>> + >>>>>>>> + pm_runtime_put(imx585->clientdev); >>>>>>>> + return ret; >>>>>>>> +} >>>>>>>> + >>>>>>>> +static const struct v4l2_ctrl_ops imx585_ctrl_ops = { >>>>>>>> + .s_ctrl = imx585_set_ctrl, >>>>>>>> +}; >>>>>>>> + >>>>>>>> +static int imx585_init_controls(struct imx585 *imx585) >>>>>>>> +{ >>>>>>>> + struct v4l2_ctrl_handler *hdl = &imx585->ctrl_handler; >>>>>>>> + struct v4l2_fwnode_device_properties props; >>>>>>>> + int ret; >>>>>>>> + >>>>>>>> + ret = v4l2_ctrl_handler_init(hdl, 16); >>>>>>>> + >>>>>>>> + /* Read-only, updated per mode */ >>>>>>>> + imx585->pixel_rate = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_PIXEL_RATE, >>>>>>>> + 1, UINT_MAX, 1, 1); >>>>>>>> + >>>>>>>> + imx585->link_freq = >>>>>>>> + v4l2_ctrl_new_int_menu(hdl, &imx585_ctrl_ops, V4L2_CID_LINK_FREQ, >>>>>>>> + 0, 0, &link_freqs[imx585->link_freq_idx]); >>>>>>>> + if (imx585->link_freq) >>>>>>>> + imx585->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; >>>>>>>> + >>>>>>>> + imx585->vblank = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_VBLANK, 0, 0xFFFFF, 1, 0); >>>>>>>> + imx585->hblank = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_HBLANK, 0, 0xFFFF, 1, 0); >>>>>>>> + imx585->blacklevel = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_BRIGHTNESS, 0, 0xFFFF, 1, >>>>>>>> + IMX585_BLKLEVEL_DEFAULT); >>>>>>>> + >>>>>>>> + imx585->exposure = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_EXPOSURE, >>>>>>>> + IMX585_EXPOSURE_MIN, IMX585_EXPOSURE_MAX, >>>>>>>> + IMX585_EXPOSURE_STEP, IMX585_EXPOSURE_DEFAULT); >>>>>>>> + >>>>>>>> + imx585->gain = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, >>>>>>>> + IMX585_ANA_GAIN_MIN, IMX585_ANA_GAIN_MAX, >>>>>>>> + IMX585_ANA_GAIN_STEP, IMX585_ANA_GAIN_DEFAULT); >>>>>>>> + >>>>>>>> + imx585->hflip = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_HFLIP, 0, 1, 1, 0); >>>>>>>> + imx585->vflip = v4l2_ctrl_new_std(hdl, &imx585_ctrl_ops, >>>>>>>> + V4L2_CID_VFLIP, 0, 1, 1, 0); >>>>>>>> + >>>>>>>> + if (hdl->error) { >>>>>>>> + ret = hdl->error; >>>>>>>> + dev_err(imx585->clientdev, "control init failed (%d)\n", ret); >>>>>>>> + goto err_free; >>>>>>>> + } >>>>>>>> + >>>>>>>> + ret = v4l2_fwnode_device_parse(imx585->clientdev, &props); >>>>>>>> + if (ret) >>>>>>>> + goto err_free; >>>>>>>> + >>>>>>>> + ret = v4l2_ctrl_new_fwnode_properties(hdl, &imx585_ctrl_ops, &props); >>>>>>>> + if (ret) >>>>>>>> + goto err_free; >>>>>>>> + >>>>>>>> + imx585->sd.ctrl_handler = hdl; >>>>>>>> + return 0; >>>>>>>> + >>>>>>>> +err_free: >>>>>>>> + v4l2_ctrl_handler_free(hdl); >>>>>>>> + return ret; >>>>>>>> +} >>>>>>>> + >>>>>>>> +static void imx585_free_controls(struct imx585 *imx585) >>>>>>>> +{ >>>>>>>> + v4l2_ctrl_handler_free(imx585->sd.ctrl_handler); >>>>>>>> +} >>>>>>>> + >>>>>>>> +/* -------------------------------------------------------------------------- >>>>>>>> + * Pad ops / formats >>>>>>>> + * -------------------------------------------------------------------------- >>>>>>>> + */ >>>>>>>> + >>>>>>>> +static int imx585_enum_mbus_code(struct v4l2_subdev *sd, >>>>>>>> + struct v4l2_subdev_state *sd_state, >>>>>>>> + struct v4l2_subdev_mbus_code_enum *code) >>>>>>>> +{ >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + unsigned int entries; >>>>>>>> + const u32 *tbl; >>>>>>>> + >>>>>>>> + if (imx585->mono) { >>>>>>>> + if (code->index) >>>>>>>> + return -EINVAL; >>>>>>>> + code->code = MEDIA_BUS_FMT_Y12_1X12; >>>>>>>> + return 0; >>>>>>>> + } >>>>>>>> + >>>>>>>> + tbl = color_codes; >>>>>>>> + entries = ARRAY_SIZE(color_codes) / 4; >>>>>>>> + >>>>>>>> + if (code->index >= entries) >>>>>>>> + return -EINVAL; >>>>>>>> + >>>>>>>> + code->code = imx585_get_format_code(imx585, tbl[code->index * 4]); >>>>>>>> + return 0; >>>>>>>> +} >>>>>>>> + >>>>>>>> +static int imx585_enum_frame_size(struct v4l2_subdev *sd, >>>>>>>> + struct v4l2_subdev_state *sd_state, >>>>>>>> + struct v4l2_subdev_frame_size_enum *fse) >>>>>>>> +{ >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + const struct imx585_mode *mode_list; >>>>>>>> + unsigned int num_modes; >>>>>>>> + >>>>>>>> + get_mode_table(imx585, fse->code, &mode_list, &num_modes); >>>>>>>> + if (fse->index >= num_modes) >>>>>>>> + return -EINVAL; >>>>>>>> + if (fse->code != imx585_get_format_code(imx585, fse->code)) >>>>>>>> + return -EINVAL; >>>>>>>> + >>>>>>>> + fse->min_width = mode_list[fse->index].width; >>>>>>>> + fse->max_width = fse->min_width; >>>>>>>> + fse->min_height = mode_list[fse->index].height; >>>>>>>> + fse->max_height = fse->min_height; >>>>>>>> + >>>>>>>> + return 0; >>>>>>>> +} >>>>>>>> + >>>>>>>> +static int imx585_set_pad_format(struct v4l2_subdev *sd, >>>>>>>> + struct v4l2_subdev_state *sd_state, >>>>>>>> + struct v4l2_subdev_format *fmt) >>>>>>>> +{ >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + const struct imx585_mode *mode_list, *mode; >>>>>>>> + unsigned int num_modes; >>>>>>>> + struct v4l2_mbus_framefmt *format; >>>>>>>> + >>>>>>>> + get_mode_table(imx585, fmt->format.code, &mode_list, &num_modes); >>>>>>>> + mode = v4l2_find_nearest_size(mode_list, num_modes, width, height, >>>>>>>> + fmt->format.width, fmt->format.height); >>>>>>>> + >>>>>>>> + fmt->format.width = mode->width; >>>>>>>> + fmt->format.height = mode->height; >>>>>>>> + fmt->format.field = V4L2_FIELD_NONE; >>>>>>>> + fmt->format.colorspace = V4L2_COLORSPACE_RAW; >>>>>>>> + fmt->format.ycbcr_enc = V4L2_YCBCR_ENC_601; >>>>>>>> + fmt->format.quantization = V4L2_QUANTIZATION_FULL_RANGE; >>>>>>>> + fmt->format.xfer_func = V4L2_XFER_FUNC_NONE; >>>>>>>> + >>>>>>>> + format = v4l2_subdev_state_get_format(sd_state, 0); >>>>>>>> + >>>>>>>> + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) >>>>>>>> + imx585_set_framing_limits(imx585, mode); >>>>>>>> + >>>>>>>> + *format = fmt->format; >>>>>>>> + return 0; >>>>>>>> +} >>>>>>>> + >>>>>>>> +/* -------------------------------------------------------------------------- >>>>>>>> + * Stream on/off >>>>>>>> + * -------------------------------------------------------------------------- >>>>>>>> + */ >>>>>>>> + >>>>>>>> +static int imx585_enable_streams(struct v4l2_subdev *sd, >>>>>>>> + struct v4l2_subdev_state *state, u32 pad, >>>>>>>> + u64 streams_mask) >>>>>>>> +{ >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + const struct imx585_mode *mode_list, *mode; >>>>>>>> + struct v4l2_subdev_state *st; >>>>>>>> + struct v4l2_mbus_framefmt *fmt; >>>>>>>> + unsigned int n_modes; >>>>>>>> + int ret; >>>>>>>> + >>>>>>>> + ret = pm_runtime_get_sync(imx585->clientdev); >>>>>>>> + if (ret < 0) { >>>>>>>> + pm_runtime_put_noidle(imx585->clientdev); >>>>>>>> + return ret; >>>>>>>> + } >>>>>>>> + >>>>>>>> + ret = cci_multi_reg_write(imx585->regmap, common_regs, >>>>>>>> + ARRAY_SIZE(common_regs), NULL); >>>>>>>> + if (ret) { >>>>>>>> + dev_err(imx585->clientdev, "Failed to write common settings\n"); >>>>>>>> + goto err_rpm_put; >>>>>>>> + } >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_INCK_SEL, imx585->inck_sel_val, NULL); >>>>>>>> + if (!ret) >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_BLKLEVEL, IMX585_BLKLEVEL_DEFAULT, NULL); >>>>>>>> + if (!ret) >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_DATARATE_SEL, >>>>>>>> + link_freqs_reg_value[imx585->link_freq_idx], NULL); >>>>>>>> + if (ret) >>>>>>>> + goto err_rpm_put; >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_LANEMODE, >>>>>>>> + (imx585->lane_count == 2) ? 0x01 : 0x03, NULL); >>>>>>>> + if (ret) >>>>>>>> + goto err_rpm_put; >>>>>>>> + >>>>>>>> + /* Mono bin flag (datasheet: 0x01 mono, 0x00 color) */ >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_BIN_MODE, imx585->mono ? 0x01 : 0x00, NULL); >>>>>>>> + if (ret) >>>>>>>> + goto err_rpm_put; >>>>>>>> + >>>>>>>> + /* Sync configuration */ >>>>>>>> + if (imx585->sync_mode == SYNC_INT_FOLLOWER) { >>>>>>>> + dev_dbg(imx585->clientdev, "Internal sync follower: XVS input\n"); >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_EXTMODE, 0x01, NULL); >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XXS_DRV, 0x03, NULL); /* XHS out, XVS in */ >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XXS_OUTSEL, 0x08, NULL); /* disable XVS OUT */ >>>>>>>> + } else if (imx585->sync_mode == SYNC_INT_LEADER) { >>>>>>>> + dev_dbg(imx585->clientdev, "Internal sync leader: XVS/XHS output\n"); >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_EXTMODE, 0x00, NULL); >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XXS_DRV, 0x00, NULL); /* XHS/XVS out */ >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XXS_OUTSEL, 0x0A, NULL); >>>>>>>> + } else { >>>>>>>> + dev_dbg(imx585->clientdev, "Follower: XVS/XHS input\n"); >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XXS_DRV, 0x0F, NULL); /* inputs */ >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XXS_OUTSEL, 0x00, NULL); >>>>>>>> + } >>>>>>>> + >>>>>>>> + imx585->common_regs_written = true; >>>>>>>> + >>>>>>>> + /* Select mode */ >>>>>>>> + st = v4l2_subdev_get_locked_active_state(&imx585->sd); >>>>>>>> + fmt = v4l2_subdev_state_get_format(st, 0); >>>>>>>> + >>>>>>>> + get_mode_table(imx585, fmt->code, &mode_list, &n_modes); >>>>>>>> + mode = v4l2_find_nearest_size(mode_list, n_modes, width, height, >>>>>>>> + fmt->width, fmt->height); >>>>>>>> + >>>>>>>> + ret = cci_multi_reg_write(imx585->regmap, mode->reg_list.regs, >>>>>>>> + mode->reg_list.num_of_regs, NULL); >>>>>>>> + if (ret) { >>>>>>>> + dev_err(imx585->clientdev, "Failed to write mode registers\n"); >>>>>>>> + goto err_rpm_put; >>>>>>>> + } >>>>>>>> + >>>>>>>> + /* Disable digital clamp */ >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_DIGITAL_CLAMP, 0x00, NULL); >>>>>>>> + >>>>>>>> + /* Apply user controls after writing the base tables */ >>>>>>>> + ret = __v4l2_ctrl_handler_setup(imx585->sd.ctrl_handler); >>>>>>>> + if (ret) { >>>>>>>> + dev_err(imx585->clientdev, "Control handler setup failed\n"); >>>>>>>> + goto err_rpm_put; >>>>>>>> + } >>>>>>>> + >>>>>>>> + if (imx585->sync_mode != SYNC_EXTERNAL) >>>>>>>> + cci_write(imx585->regmap, IMX585_REG_XMSTA, 0x00, NULL); >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_MODE_SELECT, IMX585_MODE_STREAMING, NULL); >>>>>>>> + if (ret) >>>>>>>> + goto err_rpm_put; >>>>>>>> + >>>>>>>> + dev_dbg(imx585->clientdev, "Streaming started\n"); >>>>>>>> + usleep_range(IMX585_STREAM_DELAY_US, >>>>>>>> + IMX585_STREAM_DELAY_US + IMX585_STREAM_DELAY_RANGE_US); >>>>>>>> + >>>>>>>> + /* vflip, hflip cannot change during streaming */ >>>>>>>> + __v4l2_ctrl_grab(imx585->vflip, true); >>>>>>>> + __v4l2_ctrl_grab(imx585->hflip, true); >>>>>>>> + >>>>>>>> + return 0; >>>>>>>> + >>>>>>>> +err_rpm_put: >>>>>>>> + pm_runtime_put_autosuspend(imx585->clientdev); >>>>>>>> + return ret; >>>>>>>> +} >>>>>>>> + >>>>>>>> +static int imx585_disable_streams(struct v4l2_subdev *sd, >>>>>>>> + struct v4l2_subdev_state *state, u32 pad, >>>>>>>> + u64 streams_mask) >>>>>>>> +{ >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + int ret; >>>>>>>> + >>>>>>>> + ret = cci_write(imx585->regmap, IMX585_REG_MODE_SELECT, IMX585_MODE_STANDBY, NULL); >>>>>>>> + if (ret) >>>>>>>> + dev_err(imx585->clientdev, "Failed to stop streaming\n"); >>>>>>>> + >>>>>>>> + __v4l2_ctrl_grab(imx585->vflip, false); >>>>>>>> + __v4l2_ctrl_grab(imx585->hflip, false); >>>>>>>> + >>>>>>>> + pm_runtime_put_autosuspend(imx585->clientdev); >>>>>>>> + >>>>>>>> + return ret; >>>>>>>> +} >>>>>>>> + >>>>>>>> +/* -------------------------------------------------------------------------- >>>>>>>> + * Power / runtime PM >>>>>>>> + * -------------------------------------------------------------------------- >>>>>>>> + */ >>>>>>>> + >>>>>>>> +static int imx585_power_on(struct device *dev) >>>>>>>> +{ >>>>>>>> + struct v4l2_subdev *sd = dev_get_drvdata(dev); >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + int ret; >>>>>>>> + >>>>>>>> + dev_dbg(imx585->clientdev, "power_on\n"); >>>>>>>> + >>>>>>>> + ret = regulator_bulk_enable(IMX585_NUM_SUPPLIES, imx585->supplies); >>>>>>>> + if (ret) { >>>>>>>> + dev_err(imx585->clientdev, "Failed to enable regulators\n"); >>>>>>>> + return ret; >>>>>>>> + } >>>>>>>> + >>>>>>>> + ret = clk_prepare_enable(imx585->xclk); >>>>>>>> + if (ret) { >>>>>>>> + dev_err(imx585->clientdev, "Failed to enable clock\n"); >>>>>>>> + goto reg_off; >>>>>>>> + } >>>>>>>> + >>>>>>>> + gpiod_set_value_cansleep(imx585->reset_gpio, 1); >>>>>>>> + usleep_range(IMX585_XCLR_MIN_DELAY_US, >>>>>>>> + IMX585_XCLR_MIN_DELAY_US + IMX585_XCLR_DELAY_RANGE_US); >>>>>>>> + return 0; >>>>>>>> + >>>>>>>> +reg_off: >>>>>>>> + regulator_bulk_disable(IMX585_NUM_SUPPLIES, imx585->supplies); >>>>>>>> + return ret; >>>>>>>> +} >>>>>>>> + >>>>>>>> +static int imx585_power_off(struct device *dev) >>>>>>>> +{ >>>>>>>> + struct v4l2_subdev *sd = dev_get_drvdata(dev); >>>>>>>> + struct imx585 *imx585 = to_imx585(sd); >>>>>>>> + >>>>>>>> + dev_dbg(imx585->clientdev, "power_off\n"); >>>>>>>> + >>>>>>>> + gpiod_set_value_cansleep(imx585->reset_gpio, 0); >>>>>>> >>>>>>> NAK, I wrote you this is broken and you just ignored and sending the same. >>>>>>> >>>>>>> You are mixing line level with logical level. >>>>>>> >>>>>>> There is no way your code actually works, unless you have broken DTS. >>>>>>> Test your patches correctly (with proper, fixed DTS) and don't send the >>>>>>> same completely ignoring reviewers. >>>>>> >>>>>> See how imx219.c works, ask Sony don't ask me. >>>>> >>>>> So there is a bug, you claim that you may do the same bug and then say: >>>>> >>>>>> That is why I ignore your comments on this. >>>>> >>>>> and ignoring comments that your code is buggy. Great! >>>>> >>>>> If you ever decide to not follow reviewer's opinion, you MUST respond >>>>> and you MUST say WHY in the changelog. >>>>> >>>>> Nothing that happened. >>>>> >>>>> But regardless, this is still buggy and this is still NAK. >>>>> >>>>> NAK means: Don't send the same code. >>>> >>>> What on earth are you talking about? >>> >>> Why are you sending me this in two copies? > > Respond here > >>> >>> Do you understand the difference betweeen logical level and line level? > > Respond here > >>> >>>> See imx274.c,imx283.c,imx334.c,imx335.c,imx412.c,imx415.c. >>>> Your claim that this is buggy doesn't make sense when all other Sony >>>> imx drivers are using the same logic. >>>> >>>> >>>> imx274.c: >>>> /* >>>> * imx274_reset - Function called to reset the sensor >>>> * @priv: Pointer to device structure >>>> * @rst: Input value for determining the sensor's end state after reset >>>> * >>>> * Set the senor in reset and then >>>> * if rst = 0, keep it in reset; >>>> * if rst = 1, bring it out of reset. >>> >>> Buggy driver, another old poor code. >>> >>> >>>> * >>>> */ >>>> static void imx274_reset(struct stimx274 *priv, int rst) >>>> { >>>> gpiod_set_value_cansleep(priv->reset_gpio, 0); >>>> usleep_range(IMX274_RESET_DELAY1, IMX274_RESET_DELAY2); >>>> gpiod_set_value_cansleep(priv->reset_gpio, !!rst); >>>> usleep_range(IMX274_RESET_DELAY1, IMX274_RESET_DELAY2); >>>> } >>>> >>>> >>>> imx283.c: >>>> >>> >>> Way you paste code makes it very unreadable. It's easier to point >>> web.git references. >>> >>> >>> Anyway, look also here: >>> >>>> >>>> static void imx415_power_off(struct imx415 *sensor) >>>> { >>>> clk_disable_unprepare(sensor->clk); >>>> gpiod_set_value_cansleep(sensor->reset, 1); >>> >>> >>> But if you claim that reset has to be asserted for this device to work - >>> and that's what your code is doing - then this is not a reset line. >>> >>> Do you understand what is the meaning of asserted reset (or to assert >>> reset line)? > > So you do not understand above and yet you keep arguing with maintainer. > >> >> And in all the examples I provided to you, this is the only IMX415 >> that has the logic inverted. > > And? All other drivers, camera sensors, hwmon, iio, codecs and whatnot? > > >> I can apply the same logic and say this is buggy and wrong. > > We are not going to talk imaginary things. > >> >> Do you understand this is writing the GPIO directly and has nothing to > > It is not. Again, you are mixing logical level with line level. You > never responded to that part, you never used actual arguments except > some vague statements like above. > > You do not write GPIO directly. > > Each driver is supposed to use logical level. > > >> do with what you think it should be? >> Ask Sony why they use logic high = normal mode and logic low = reset. > > Again you are mixing knowledge. Line level is completely irrelevant > here. 99% of devices has active low reset line. > >> >> Quote your previous comments: >>> This is not how resets work. Logical reset value high means it is >>> asserted and device does not work. >> >>> Read carefully your datasheet. Because if you claim above this is not a >>> reset line, but some other. >> >> imx283.c is the latest one landed in 2024, can you read it carefully >> and reply again? > > I will not because arguments "I found such code somewhere, so I will not > respond to actual arguments just use that code" are invalid. > > You cannot make reset asserted and claim "this is operating stage". I > explained why: because it does not work with correct DTS. If it works > for you, then because your DTS is not correct. > > Apparently you do not understand what is assertion and what is logical > state of GPIO (I asked this three times), but you keep disagreeing. > That's basic knowledge, so please kindly go to Wikipedia or > stackoverflow, because you are now wasting reviewers time. You do not > respond to reviewers arguments. > > As I said: code is wrong so NAK. BTW, I asked some emails ago: "Do you understand the difference betweeen logical level and line level?" The question was on purpose, so you will think on the answer. If you thought about this and responded to this after that thinking, that process would lead you to the correct answer and correct code. You avoid doing research and learning this stuff, which is your right. Just like our right is not to accept buggy code. If you do not want to learn, then implement it like maintainer asks. Best regards, Krzysztof