diff options
| author | Nishad Kamdar <nishadkamdar@gmail.com> | 2019-01-16 20:30:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-18 13:01:02 +0300 |
| commit | c440eee1a7a1d0f2d5fc2ee6049e4a05da540f01 (patch) | |
| tree | 60ec90b53ac2f8540b2a24a055cd086d9102c86c /drivers/staging/fbtft/fbtft-io.c | |
| parent | 032ecb59aa3878d6d9984068d715ab9ce7e2e503 (diff) | |
| download | linux-c440eee1a7a1d0f2d5fc2ee6049e4a05da540f01.tar.xz | |
Staging: fbtft: Switch to the gpio descriptor interface
This switches the fbtft driver to use GPIO descriptors
rather than numerical gpios:
Utilize the GPIO library's intrinsic handling of OF GPIOs
and polarity. If the line is flagged active low, gpiolib
will deal with this.
Remove gpios from platform device structure. Neither assign
statically numbers to gpios in platform device nor allow
gpios to be parsed as module parameters.
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fbtft/fbtft-io.c')
| -rw-r--r-- | drivers/staging/fbtft/fbtft-io.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c index b5051d3d46a6..38cdad6203ea 100644 --- a/drivers/staging/fbtft/fbtft-io.c +++ b/drivers/staging/fbtft/fbtft-io.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/export.h> #include <linux/errno.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include "fbtft.h" @@ -142,30 +142,30 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len) data = *(u8 *)buf; /* Start writing by pulling down /WR */ - gpio_set_value(par->gpio.wr, 0); + gpiod_set_value(par->gpio.wr, 0); /* Set data */ #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO if (data == prev_data) { - gpio_set_value(par->gpio.wr, 0); /* used as delay */ + gpiod_set_value(par->gpio.wr, 0); /* used as delay */ } else { for (i = 0; i < 8; i++) { if ((data & 1) != (prev_data & 1)) - gpio_set_value(par->gpio.db[i], - data & 1); + gpiod_set_value(par->gpio.db[i], + data & 1); data >>= 1; prev_data >>= 1; } } #else for (i = 0; i < 8; i++) { - gpio_set_value(par->gpio.db[i], data & 1); + gpiod_set_value(par->gpio.db[i], data & 1); data >>= 1; } #endif /* Pullup /WR */ - gpio_set_value(par->gpio.wr, 1); + gpiod_set_value(par->gpio.wr, 1); #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO prev_data = *(u8 *)buf; @@ -192,30 +192,30 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len) data = *(u16 *)buf; /* Start writing by pulling down /WR */ - gpio_set_value(par->gpio.wr, 0); + gpiod_set_value(par->gpio.wr, 0); /* Set data */ #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO if (data == prev_data) { - gpio_set_value(par->gpio.wr, 0); /* used as delay */ + gpiod_set_value(par->gpio.wr, 0); /* used as delay */ } else { for (i = 0; i < 16; i++) { if ((data & 1) != (prev_data & 1)) - gpio_set_value(par->gpio.db[i], - data & 1); + gpiod_set_value(par->gpio.db[i], + data & 1); data >>= 1; prev_data >>= 1; } } #else for (i = 0; i < 16; i++) { - gpio_set_value(par->gpio.db[i], data & 1); + gpiod_set_value(par->gpio.db[i], data & 1); data >>= 1; } #endif /* Pullup /WR */ - gpio_set_value(par->gpio.wr, 1); + gpiod_set_value(par->gpio.wr, 1); #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO prev_data = *(u16 *)buf; |