[PATCHv6 4/3] v4l2-dev: disable frequency and tuner ioctls for touch

[Hans Verkuil]

Touch devices have obviously no tuner, so don't attempt to enable those ioctls
for such devices.

Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
---
diff --git a/drivers/media/v4l2-core/v4l2-dev.c 
b/drivers/media/v4l2-core/v4l2-dev.c
index cec588b04711..da42d172714a 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -581,8 +581,10 @@ static void determine_valid_ioctls(struct video_device 
*vdev)
                set_bit(_IOC_NR(VIDIOC_TRY_EXT_CTRLS), valid_ioctls);
        if (vdev->ctrl_handler || ops->vidioc_querymenu)
                set_bit(_IOC_NR(VIDIOC_QUERYMENU), valid_ioctls);
-       SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
-       SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
+       if (!is_tch) {
+               SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
+               SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
+       }
        SET_VALID_IOCTL(ops, VIDIOC_LOG_STATUS, vidioc_log_status);
 #ifdef CONFIG_VIDEO_ADV_DEBUG
        set_bit(_IOC_NR(VIDIOC_DBG_G_CHIP_INFO), valid_ioctls);
@@ -754,7 +756,7 @@ static void determine_valid_ioctls(struct video_device 
*vdev)
                SET_VALID_IOCTL(ops, VIDIOC_G_MODULATOR, vidioc_g_modulator);
                SET_VALID_IOCTL(ops, VIDIOC_S_MODULATOR, vidioc_s_modulator);
        }
-       if (is_rx) {
+       if (is_rx && !is_tch) {
                /* receiver only ioctls */
                SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);
                SET_VALID_IOCTL(ops, VIDIOC_S_TUNER, vidioc_s_tuner);