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staging: ftbft: Use backlight helper

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backlight_properties.fb_blank is deprecated. The states it represents
are handled by other properties; but instead of accessing those
properties directly, drivers should use the helpers provided by
backlight.h.

Instead of manually checking the power state in struct
backlight_properties, use backlight_is_blank().

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Len Baker <len.baker@gmx.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-staging@lists.linux.dev
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Kitt <steve@sk2.org>
Link: https://lore.kernel.org/r/20220607185516.1129900-1-steve@sk2.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stephen Kitt 2022-06-07 20:55:16 +02:00 committed by Greg Kroah-Hartman
parent 455c5de922
commit 66d653c372
2 changed files with 2 additions and 4 deletions
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3
drivers/staging/fbtft/fb_ssd1351.c
View File

@ -196,8 +196,7 @@ static int update_onboard_backlight(struct backlight_device *bd)
"%s: power=%d, fb_blank=%d\n",
__func__, bd->props.power, bd->props.fb_blank);
on = (bd->props.power == FB_BLANK_UNBLANK) &&
(bd->props.fb_blank == FB_BLANK_UNBLANK);
on = !backlight_is_blank(bd);
/* Onboard backlight connected to GPIO0 on SSD1351, GPIO1 unused */
write_reg(par, 0xB5, on ? 0x03 : 0x02);

3
drivers/staging/fbtft/fbtft-core.c
View File

@ -137,8 +137,7 @@ static int fbtft_backlight_update_status(struct backlight_device *bd)
"%s: polarity=%d, power=%d, fb_blank=%d\n",
__func__, polarity, bd->props.power, bd->props.fb_blank);
if ((bd->props.power == FB_BLANK_UNBLANK) &&
(bd->props.fb_blank == FB_BLANK_UNBLANK))
if (!backlight_is_blank(bd))
gpiod_set_value(par->gpio.led[0], polarity);
else
gpiod_set_value(par->gpio.led[0], !polarity);