msm8916-openwrt/target/linux/bcm27xx/patches-6.6/950-0138-media-adv7180-Default-to-the-first-valid-input.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

46 lines
1.2 KiB
Diff

From e16176a65ade0917d0f1ca7b148a485aa5cf7b37 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Wed, 31 Oct 2018 14:57:46 +0000
Subject: [PATCH 0138/1085] media: adv7180: Default to the first valid input
The hardware default is differential CVBS on AIN1 & 2, which
isn't very useful.
Select the first input that is defined as valid for the
chip variant (typically CVBS_AIN1).
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
---
drivers/media/i2c/adv7180.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -1340,6 +1340,7 @@ static const struct adv7180_chip_info ad
static int init_device(struct adv7180_state *state)
{
int ret;
+ int i;
mutex_lock(&state->mutex);
@@ -1387,6 +1388,18 @@ static int init_device(struct adv7180_st
goto out_unlock;
}
+ /* Select first valid input */
+ for (i = 0; i < 32; i++) {
+ if (BIT(i) & state->chip_info->valid_input_mask) {
+ ret = state->chip_info->select_input(state, i);
+
+ if (ret == 0) {
+ state->input = i;
+ break;
+ }
+ }
+ }
+
out_unlock:
mutex_unlock(&state->mutex);