From: Daniel Vetter <daniel.vetter@xxxxxxxx>
[ Upstream commit 9adfe5c89be497bb8761a9f788297c258d535334 ]
Leaking driver internal tracking into the already massively confusing
backlight power tracking is really confusing.
Luckily we have already a drvdata structure, so fixing this is really
easy.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Acked-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/staging/fbtft/fbtft-core.c | 4 ++--
drivers/staging/fbtft/fbtft.h | 1 +
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 587f68aa466c2..f4682ba44cd74 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -247,7 +247,7 @@ static int fbtft_request_gpios_dt(struct fbtft_par *par)
static int fbtft_backlight_update_status(struct backlight_device *bd)
{
struct fbtft_par *par = bl_get_data(bd);
- bool polarity = !!(bd->props.state & BL_CORE_DRIVER1);
+ bool polarity = par->polarity;
fbtft_par_dbg(DEBUG_BACKLIGHT, par,
"%s: polarity=%d, power=%d, fb_blank=%d\n",
@@ -296,7 +296,7 @@ void fbtft_register_backlight(struct fbtft_par *par)
/* Assume backlight is off, get polarity from current state of pin */
bl_props.power = FB_BLANK_POWERDOWN;
if (!gpio_get_value(par->gpio.led[0]))
- bl_props.state |= BL_CORE_DRIVER1;
+ par->polarity = true;
bd = backlight_device_register(dev_driver_string(par->info->device),
par->info->device, par, &fbtft_bl_ops, &bl_props);
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 89c4b5b76ce69..0275319906748 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -241,6 +241,7 @@ struct fbtft_par {
ktime_t update_time;
bool bgr;
void *extra;
+ bool polarity;
};
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
--
2.20.1
