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media: em28xx: add special case for legacy gpiolib interface

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The em28xx driver uses the old-style gpio_request_one() interface to
switch the lna on the PCTV 290E card.

This interface is becoming optional and should no longer be called by
portable drivers. As I could not figure out an obvious replacement,
select the new GPIOLIB_LEGACY symbol as a workaround.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Arnd Bergmann
2025-08-08 17:17:55 +02:00
committed by Hans Verkuil
parent 7fa37ba25a
commit d5d299e7e7
2 changed files with 3 additions and 2 deletions
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1
drivers/media/usb/em28xx/Kconfig
View File

@@ -68,6 +68,7 @@ config VIDEO_EM28XX_DVB
select MEDIA_TUNER_XC5000 if MEDIA_SUBDRV_AUTOSELECT
select MEDIA_TUNER_MT2060 if MEDIA_SUBDRV_AUTOSELECT
select DVB_MXL692 if MEDIA_SUBDRV_AUTOSELECT
select GPIOLIB_LEGACY if GPIOLIB && DVB_CXD2820R
help
This adds support for DVB cards based on the
Empiatech em28xx chips.

4
drivers/media/usb/em28xx/em28xx-dvb.c
View File

@@ -727,7 +727,7 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe)
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;
struct em28xx *dev = i2c_bus->dev;
#ifdef CONFIG_GPIOLIB
#ifdef CONFIG_GPIOLIB_LEGACY
struct em28xx_dvb *dvb = dev->dvb;
int ret;
unsigned long flags;
@@ -1705,7 +1705,7 @@ static int em28xx_dvb_init(struct em28xx *dev)
goto out_free;
}
#ifdef CONFIG_GPIOLIB
#ifdef CONFIG_GPIOLIB_LEGACY
/* enable LNA for DVB-T, DVB-T2 and DVB-C */
result = gpio_request_one(dvb->lna_gpio,
GPIOF_OUT_INIT_LOW, NULL);