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Message-ID: <20230301073412.1204574-6-shravan.chippa@microchip.com>
Date: Wed, 1 Mar 2023 13:04:12 +0530
From: shravan kumar <shravan.chippa@...rochip.com>
To: <paul.j.murphy@...el.com>, <daniele.alessandrelli@...el.com>,
<mchehab@...nel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <shawnguo@...nel.org>,
<s.hauer@...gutronix.de>
CC: <kernel@...gutronix.de>, <festevam@...il.com>, <linux-imx@....com>,
<linux-media@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<shravan.chippa@...rochip.com>, Sakari Ailus <sakari.ailus@....fi>
Subject: [PATCH v12 5/5] media: i2c: imx334: update pixel and link frequency
From: Shravan Chippa <shravan.chippa@...rochip.com>
Update pixel_rate and link frequency for 1920x1080@30
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 <sakari.ailus@....fi>
Signed-off-by: Shravan Chippa <shravan.chippa@...rochip.com>
---
drivers/media/i2c/imx334.c | 51 ++++++++++++++++++++++++++++----------
1 file changed, 38 insertions(+), 13 deletions(-)
diff --git a/drivers/media/i2c/imx334.c b/drivers/media/i2c/imx334.c
index 309c706114d2..7958c5b73f3e 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
@@ -139,12 +140,14 @@ 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@...ps */
@@ -468,7 +471,7 @@ 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,
@@ -598,6 +601,11 @@ 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)
@@ -698,6 +706,8 @@ 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 +895,13 @@ 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);
+ fmt->format.code = imx334->cur_code;
+ 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));
return imx334_set_pad_format(sd, sd_state, &fmt);
}
@@ -1046,8 +1062,8 @@ 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 +1113,20 @@ 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 +1257,10 @@ 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 +1327,7 @@ 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;
--
2.34.1
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