diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0178-media-adv7180-Nasty-hack-to-allow-input-selection.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0178-media-adv7180-Nasty-hack-to-allow-input-selection.patch | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0178-media-adv7180-Nasty-hack-to-allow-input-selection.patch b/target/linux/bcm27xx/patches-4.19/950-0178-media-adv7180-Nasty-hack-to-allow-input-selection.patch new file mode 100644 index 0000000000..b48db8b0d1 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0178-media-adv7180-Nasty-hack-to-allow-input-selection.patch @@ -0,0 +1,89 @@ +From 34c4ee6f5d7143f6c8be604715f9b52b7540e38d Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +Date: Wed, 31 Oct 2018 15:00:04 +0000 +Subject: [PATCH] media: adv7180: Nasty hack to allow input selection. + +Whilst the adv7180 driver support s_routing, nothing else +does, and there is a missing lump of framework code to +define the mapping from connectors on a board to the inputs +they represent on the ADV7180. + +Add a nasty hack to take a module parameter that is passed in +to s_routing on any call to G_STD, or S_STD (or subdev +g_input_status call). + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> +--- + drivers/media/i2c/adv7180.c | 30 ++++++++++++++++++++++++++++-- + 1 file changed, 28 insertions(+), 2 deletions(-) + +--- a/drivers/media/i2c/adv7180.c ++++ b/drivers/media/i2c/adv7180.c +@@ -189,6 +189,10 @@ + + #define V4L2_CID_ADV_FAST_SWITCH (V4L2_CID_USER_ADV7180_BASE + 0x00) + ++static int dbg_input; ++module_param(dbg_input, int, 0644); ++MODULE_PARM_DESC(dbg_input, "Input number (0-31)"); ++ + struct adv7180_state; + + #define ADV7180_FLAG_RESET_POWERED BIT(0) +@@ -405,10 +409,24 @@ out: + return ret; + } + ++static void adv7180_check_input(struct v4l2_subdev *sd) ++{ ++ struct adv7180_state *state = to_state(sd); ++ ++ if (state->input != dbg_input) ++ if (adv7180_s_routing(sd, dbg_input, 0, 0)) ++ /* Failed - reset dbg_input */ ++ dbg_input = state->input; ++} ++ + static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status) + { + struct adv7180_state *state = to_state(sd); +- int ret = mutex_lock_interruptible(&state->mutex); ++ int ret; ++ ++ adv7180_check_input(sd); ++ ++ ret = mutex_lock_interruptible(&state->mutex); + if (ret) + return ret; + +@@ -434,7 +452,11 @@ static int adv7180_program_std(struct ad + static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std) + { + struct adv7180_state *state = to_state(sd); +- int ret = mutex_lock_interruptible(&state->mutex); ++ int ret; ++ ++ adv7180_check_input(sd); ++ ++ ret = mutex_lock_interruptible(&state->mutex); + + if (ret) + return ret; +@@ -456,6 +478,8 @@ static int adv7180_g_std(struct v4l2_sub + { + struct adv7180_state *state = to_state(sd); + ++ adv7180_check_input(sd); ++ + *norm = state->curr_norm; + + return 0; +@@ -810,6 +834,8 @@ static int adv7180_s_stream(struct v4l2_ + return 0; + } + ++ adv7180_check_input(sd); ++ + /* Must wait until querystd released the lock */ + ret = mutex_lock_interruptible(&state->mutex); + if (ret) |