From e3269ea5148d39119c4a603b4391e0adbe32af37 Mon Sep 17 00:00:00 2001 From: Shravan Chippa Date: Fri, 14 Apr 2023 18:03:11 +0530 Subject: [PATCH] media: i2c: imx334: update pixel, hblank and link frequency Update pixel_rate and link frequency for 1920x1080@30 while changing mode. Update vblank value while changing mode Add support to handle multiple link frequencies. Add dummy ctrl cases for pixel_rate and link frequency to avoid error while changing the modes dynamically. Update default link frequency from device tree max link frequency value. Update init_cfg() function to update the link frequency menu_skip_mask value. Suggested-by: Sakari Ailus Signed-off-by: Shravan Chippa [Sakari Ailus: Document menu_skip_mask, remove extra blank line.] Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil --- drivers/media/i2c/imx334.c | 62 +++++++++++++++++++++++++++++++++++----------- 1 file changed, 48 insertions(+), 14 deletions(-) diff --git a/drivers/media/i2c/imx334.c b/drivers/media/i2c/imx334.c index bd79ebf..d722c9b 100644 --- a/drivers/media/i2c/imx334.c +++ b/drivers/media/i2c/imx334.c @@ -49,7 +49,8 @@ #define IMX334_INCLK_RATE 24000000 /* CSI2 HW configuration */ -#define IMX334_LINK_FREQ 891000000 +#define IMX334_LINK_FREQ_891M 891000000 +#define IMX334_LINK_FREQ_445M 445500000 #define IMX334_NUM_DATA_LANES 4 #define IMX334_REG_MIN 0x00 @@ -117,6 +118,7 @@ struct imx334_mode { * @vblank: Vertical blanking in lines * @cur_mode: Pointer to current selected sensor mode * @mutex: Mutex for serializing sensor controls + * @menu_skip_mask: Menu skip mask for link_freq_ctrl * @cur_code: current selected format code * @streaming: Flag indicating streaming state */ @@ -139,12 +141,14 @@ struct imx334 { u32 vblank; const struct imx334_mode *cur_mode; struct mutex mutex; + unsigned long menu_skip_mask; u32 cur_code; bool streaming; }; static const s64 link_freq[] = { - IMX334_LINK_FREQ, + IMX334_LINK_FREQ_891M, + IMX334_LINK_FREQ_445M, }; /* Sensor mode registers for 1920x1080@30fps */ @@ -468,7 +472,7 @@ static const struct imx334_mode supported_modes[] = { .vblank_min = 45, .vblank_max = 132840, .pclk = 297000000, - .link_freq_idx = 0, + .link_freq_idx = 1, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_1920x1080_regs), .regs = mode_1920x1080_regs, @@ -598,13 +602,22 @@ static int imx334_update_controls(struct imx334 *imx334, if (ret) return ret; + ret = __v4l2_ctrl_modify_range(imx334->pclk_ctrl, mode->pclk, + mode->pclk, 1, mode->pclk); + if (ret) + return ret; + ret = __v4l2_ctrl_modify_range(imx334->hblank_ctrl, mode->hblank, mode->hblank, 1, mode->hblank); if (ret) return ret; - return __v4l2_ctrl_modify_range(imx334->vblank_ctrl, mode->vblank_min, + ret = __v4l2_ctrl_modify_range(imx334->vblank_ctrl, mode->vblank_min, mode->vblank_max, 1, mode->vblank); + if (ret) + return ret; + + return __v4l2_ctrl_s_ctrl(imx334->vblank_ctrl, mode->vblank); } /** @@ -698,6 +711,8 @@ static int imx334_set_ctrl(struct v4l2_ctrl *ctrl) pm_runtime_put(imx334->dev); break; + case V4L2_CID_PIXEL_RATE: + case V4L2_CID_LINK_FREQ: case V4L2_CID_HBLANK: ret = 0; break; @@ -885,7 +900,17 @@ static int imx334_init_pad_cfg(struct v4l2_subdev *sd, struct v4l2_subdev_format fmt = { 0 }; fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; - imx334_fill_pad_format(imx334, &supported_modes[0], &fmt); + + mutex_lock(&imx334->mutex); + + imx334_fill_pad_format(imx334, imx334->cur_mode, &fmt); + + __v4l2_ctrl_modify_range(imx334->link_freq_ctrl, 0, + __fls(imx334->menu_skip_mask), + ~(imx334->menu_skip_mask), + __ffs(imx334->menu_skip_mask)); + + mutex_unlock(&imx334->mutex); return imx334_set_pad_format(sd, sd_state, &fmt); } @@ -1046,8 +1071,8 @@ static int imx334_parse_hw_config(struct imx334 *imx334) }; struct fwnode_handle *ep; unsigned long rate; + unsigned int i, j; int ret; - int i; if (!fwnode) return -ENXIO; @@ -1097,11 +1122,20 @@ static int imx334_parse_hw_config(struct imx334 *imx334) goto done_endpoint_free; } - for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) - if (bus_cfg.link_frequencies[i] == IMX334_LINK_FREQ) + for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) { + for (j = 0; j < ARRAY_SIZE(link_freq); j++) { + if (bus_cfg.link_frequencies[i] == link_freq[j]) { + set_bit(j, &imx334->menu_skip_mask); + break; + } + } + + if (j == ARRAY_SIZE(link_freq)) { + ret = dev_err_probe(imx334->dev, -EINVAL, + "no supported link freq found\n"); goto done_endpoint_free; - - ret = -EINVAL; + } + } done_endpoint_free: v4l2_fwnode_endpoint_free(&bus_cfg); @@ -1232,10 +1266,10 @@ static int imx334_init_controls(struct imx334 *imx334) imx334->link_freq_ctrl = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx334_ctrl_ops, V4L2_CID_LINK_FREQ, - ARRAY_SIZE(link_freq) - - 1, - mode->link_freq_idx, + __fls(imx334->menu_skip_mask), + __ffs(imx334->menu_skip_mask), link_freq); + if (imx334->link_freq_ctrl) imx334->link_freq_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; @@ -1302,7 +1336,7 @@ static int imx334_probe(struct i2c_client *client) } /* Set default mode to max resolution */ - imx334->cur_mode = &supported_modes[0]; + imx334->cur_mode = &supported_modes[__ffs(imx334->menu_skip_mask)]; imx334->cur_code = imx334_mbus_codes[0]; imx334->vblank = imx334->cur_mode->vblank; -- 2.7.4