Camera: OOT: misc code fixes for drivers

1. Sensor deep power down and mclk enable
   and disable code.
2. Assign pads member in v4l2_subdev_state
   struct passed to v4l2_subdev_call.
3. emc and iso.emc clock are not available
   in K5.15. Disable clock get function.

Bug 3898807

Change-Id: If9e24ccd837af00df250571e6fc4c907886faf93
Signed-off-by: Ankur Pawar <ankurp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2835934
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

drivers/media/platform/tegra/camera/camera_common.c

@@ -2,7 +2,7 @@
 /*
  * camera_common.c - utilities for tegra camera driver
  *
- * Copyright (c) 2015-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 #include <linux/types.h>
 #include <media/tegra-v4l2-camera.h>
@@ -923,7 +923,18 @@ int camera_common_s_power(struct v4l2_subdev *sd, int on)
 			dev_err(s_data->dev, "%s: error power on\n", __func__);
 			return err;
 		}
+
+		err = camera_common_mclk_enable(s_data);
+		if (err) {
+			dev_err(s_data->dev, "%s: failed to enable mclk\n",
+				__func__);
+			call_s_op(s_data, power_off);
+			return err;
+		}
+		camera_common_dpd_disable(s_data);
 	} else {
+		camera_common_dpd_enable(s_data);
+		camera_common_mclk_disable(s_data);
 		call_s_op(s_data, power_off);
 	}
 

drivers/media/platform/tegra/camera/vi/channel.c

@@ -2,7 +2,7 @@
 /*
  * NVIDIA Tegra Video Input Device
  *
- * Copyright (c) 2015-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <linux/atomic.h>
@@ -299,7 +299,9 @@ static void tegra_channel_fmts_bitmap_init(struct tegra_channel *chan)
 	struct v4l2_subdev_mbus_code_enum code = {
 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
 	};
-	struct v4l2_subdev_state cfg = {};
+
+	struct v4l2_subdev_pad_config pad_cfg;
+	struct v4l2_subdev_state cfg = {.pads = &pad_cfg};
 	bitmap_zero(chan->fmts_bitmap, MAX_FORMAT_NUM);
 
 	/*
@@ -1042,7 +1044,8 @@ tegra_channel_enum_framesizes(struct file *file, void *fh,
 	struct tegra_channel *chan = video_drvdata(file);
 	struct v4l2_subdev *sd = chan->subdev_on_csi;
 	struct v4l2_subdev_frame_size_enum fse;
-	struct v4l2_subdev_state cfg = {};
+	struct v4l2_subdev_pad_config pad_cfg;
+	struct v4l2_subdev_state cfg = {.pads = &pad_cfg};
 	int ret = 0;
 
 	/* Convert v4l2 pixel format (fourcc) into media bus format code */
@@ -1071,7 +1074,8 @@ tegra_channel_enum_frameintervals(struct file *file, void *fh,
 	struct tegra_channel *chan = video_drvdata(file);
 	struct v4l2_subdev *sd = chan->subdev_on_csi;
 	struct v4l2_subdev_frame_interval_enum fie;
-	struct v4l2_subdev_state cfg = {};
+	struct v4l2_subdev_pad_config pad_cfg;
+	struct v4l2_subdev_state cfg = {.pads = &pad_cfg};
 	int ret = 0;
 
 	/* Convert v4l2 pixel format (fourcc) into media bus format code */
@@ -2017,7 +2021,8 @@ __tegra_channel_try_format(struct tegra_channel *chan,
 	const struct tegra_video_format *vfmt;
 	struct v4l2_subdev_format fmt;
 	struct v4l2_subdev *sd = chan->subdev_on_csi;
-	struct v4l2_subdev_state cfg = {};
+	struct v4l2_subdev_pad_config pad_cfg;
+	struct v4l2_subdev_state cfg = {.pads = &pad_cfg};
 	int ret = 0;
 
 	/* Use the channel format if pixformat is not supported */
@@ -2065,7 +2070,8 @@ __tegra_channel_set_format(struct tegra_channel *chan,
 	const struct tegra_video_format *vfmt;
 	struct v4l2_subdev_format fmt;
 	struct v4l2_subdev *sd = chan->subdev_on_csi;
-	struct v4l2_subdev_state cfg = {};
+	struct v4l2_subdev_pad_config pad_cfg;
+	struct v4l2_subdev_state cfg = {.pads = &pad_cfg};
 	int ret = 0;
 
 	vfmt = tegra_core_get_format_by_fourcc(chan, pix->pixelformat);

drivers/video/tegra/camera/tegra_camera_platform.c

@@ -12,6 +12,7 @@
 #include <linux/platform/tegra/bwmgr_mc.h>
 #include <linux/platform/tegra/latency_allowance.h>
 #include <linux/platform/tegra/isomgr.h>
+#include <linux/platform/tegra/mc_utils.h>
 #include <linux/list.h>
 #include <linux/nvhost.h>
 
@@ -483,7 +484,7 @@ int tegra_camera_update_isobw(void)
 #endif
 
 	/* Use Khz to prevent overflow */
-	total_khz = 0U;
+	total_khz = emc_bw_to_freq(bw);
 	total_khz = min(ULONG_MAX / 1000, total_khz);
 
 	dev_dbg(info->dev, "%s:Set iso bw %lu kbyteps at %lu KHz\n",
@@ -544,7 +545,7 @@ static long tegra_camera_ioctl(struct file *file,
 		}
 
 		/* Use Khz to prevent overflow */
-		mc_khz = 0;
+		mc_khz = emc_bw_to_freq(kcopy.bw);
 		mc_khz = min(ULONG_MAX / 1000, mc_khz);
 
 		if (kcopy.is_iso) {
@@ -714,20 +715,6 @@ static int tegra_camera_probe(struct platform_device *pdev)
 	strcpy(info->devname, tegra_camera_misc.name);
 	info->dev = tegra_camera_misc.this_device;
 
-#if !defined(CONFIG_TEGRA_BWMGR)
-	info->emc = devm_clk_get(info->dev, "emc");
-	if (IS_ERR(info->emc)) {
-		dev_err(info->dev, "Failed to get camera.emc\n");
-		return -EINVAL;
-	}
-	clk_set_rate(info->emc, 0);
-	info->iso_emc = devm_clk_get(info->dev, "iso.emc");
-	if (IS_ERR(info->iso_emc)) {
-		dev_err(info->dev, "Failed to get camera_iso.emc\n");
-		return -EINVAL;
-	}
-	clk_set_rate(info->iso_emc, 0);
-#endif
 	mutex_init(&info->update_bw_lock);
 #if IS_ENABLED(CONFIG_INTERCONNECT) && IS_ENABLED(CONFIG_TEGRA_T23X_GRHOST)
 	info->icc_iso_id = TEGRA_ICC_VI;