[v2] Staging: fbtft: Switch to the gpio descriptor interface

Message ID	20190115044704.GA20989@nishad (mailing list archive)
State	New, archived
Headers	show Return-Path: <dri-devel-bounces@lists.freedesktop.org> Date: Tue, 15 Jan 2019 10:17:09 +0530 From: Nishad Kamdar <nishadkamdar@gmail.com> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Subject: [PATCH v2] Staging: fbtft: Switch to the gpio descriptor interface Message-ID: <20190115044704.GA20989@nishad> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: list Cc: devel@driverdev.osuosl.org, Leonardo =?utf-8?b?QnLDoXM=?= <leobras.c@gmail.com>, linux-fbdev@vger.kernel.org, YueHaibing <yuehaibing@huawei.com>, Nishad Kamdar <nishadkamdar@gmail.com>, Jani Nikula <jani.nikula@intel.com>, Daniel Vetter <daniel.vetter@ffwll.ch>, Felix Siegel <felix.siegel@stud.uni-hannover.de>, Matthias Wolf <der_wolf_@web.de>, linux-kernel@vger.kernel.org, Mamta Shukla <mamtashukla555@gmail.com>, Radek =?utf-8?q?Dost=C3=A1l?= <radek.dostal@streamunlimited.com>, Renato Soma <renatoys08@gmail.com>, dri-devel@lists.freedesktop.org, Tim Cofala <cofala@stud.uni-hannover.de>, Lee Jones <lee.jones@linaro.org> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
Series	[v2] Staging: fbtft: Switch to the gpio descriptor interface \| expand [v2] Staging: fbtft: Switch to the gpio descriptor interface

diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c index f6f30f5bf15a..8f27bd8da17d 100644 --- a/drivers/staging/fbtft/fb_agm1264k-fl.c +++ b/drivers/staging/fbtft/fb_agm1264k-fl.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include <linux/slab.h> @@ -79,14 +79,14 @@ static int init_display(struct fbtft_par *par) static void reset(struct fbtft_par *par) { - if (par->gpio.reset == -1) + if (!par->gpio.reset) return; dev_dbg(par->info->device, "%s()\n", __func__); - gpio_set_value(par->gpio.reset, 0); + gpiod_set_value(par->gpio.reset, 0); udelay(20); - gpio_set_value(par->gpio.reset, 1); + gpiod_set_value(par->gpio.reset, 1); mdelay(120); } @@ -98,30 +98,30 @@ static int verify_gpios(struct fbtft_par *par) dev_dbg(par->info->device, "%s()\n", __func__); - if (par->EPIN < 0) { + if (!par->EPIN) { dev_err(par->info->device, "Missing info about 'wr' (aka E) gpio. Aborting.\n"); return -EINVAL; } for (i = 0; i < 8; ++i) { - if (par->gpio.db[i] < 0) { + if (!par->gpio.db[i]) { dev_err(par->info->device, "Missing info about 'db[%i]' gpio. Aborting.\n", i); return -EINVAL; } } - if (par->CS0 < 0) { + if (!par->CS0) { dev_err(par->info->device, "Missing info about 'cs0' gpio. Aborting.\n"); return -EINVAL; } - if (par->CS1 < 0) { + if (!par->CS1) { dev_err(par->info->device, "Missing info about 'cs1' gpio. Aborting.\n"); return -EINVAL; } - if (par->RW < 0) { + if (!par->RW) { dev_err(par->info->device, "Missing info about 'rw' gpio. Aborting.\n"); return -EINVAL; @@ -139,22 +139,22 @@ request_gpios_match(struct fbtft_par *par, const struct fbtft_gpio *gpio) if (strcasecmp(gpio->name, "wr") == 0) { /* left ks0108 E pin */ par->EPIN = gpio->gpio; - return GPIOF_OUT_INIT_LOW; + return GPIOD_OUT_LOW; } else if (strcasecmp(gpio->name, "cs0") == 0) { /* left ks0108 controller pin */ par->CS0 = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; + return GPIOD_OUT_HIGH; } else if (strcasecmp(gpio->name, "cs1") == 0) { /* right ks0108 controller pin */ par->CS1 = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; + return GPIOD_OUT_HIGH; } /* if write (rw = 0) e(1->0) perform write */ /* if read (rw = 1) e(0->1) set data on D0-7*/ else if (strcasecmp(gpio->name, "rw") == 0) { par->RW = gpio->gpio; - return GPIOF_OUT_INIT_LOW; + return GPIOD_OUT_LOW; } return FBTFT_GPIO_NO_MATCH; @@ -194,15 +194,15 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) /* select chip */ if (*buf) { /* cs1 */ - gpio_set_value(par->CS0, 1); - gpio_set_value(par->CS1, 0); + gpiod_set_value(par->CS0, 1); + gpiod_set_value(par->CS1, 0); } else { /* cs0 */ - gpio_set_value(par->CS0, 0); - gpio_set_value(par->CS1, 1); + gpiod_set_value(par->CS0, 0); + gpiod_set_value(par->CS1, 1); } - gpio_set_value(par->RS, 0); /* RS->0 (command mode) */ + gpiod_set_value(par->RS, 0); /* RS->0 (command mode) */ len--; if (len) { @@ -364,7 +364,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) write_reg(par, 0x00, (0x17 << 3) | (u8)y); /* write bitmap */ - gpio_set_value(par->RS, 1); /* RS->1 (data mode) */ + gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */ ret = par->fbtftops.write(par, buf, len); if (ret < 0) dev_err(par->info->device, @@ -387,7 +387,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) write_reg(par, 0x01, (0x17 << 3) | (u8)y); /* write bitmap */ - gpio_set_value(par->RS, 1); /* RS->1 (data mode) */ + gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */ par->fbtftops.write(par, buf, len); if (ret < 0) dev_err(par->info->device, @@ -397,8 +397,8 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) } kfree(convert_buf); - gpio_set_value(par->CS0, 1); - gpio_set_value(par->CS1, 1); + gpiod_set_value(par->CS0, 1); + gpiod_set_value(par->CS1, 1); return ret; } @@ -408,7 +408,7 @@ static int write(struct fbtft_par *par, void *buf, size_t len) fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len, "%s(len=%d): ", __func__, len); - gpio_set_value(par->RW, 0); /* set write mode */ + gpiod_set_value(par->RW, 0); /* set write mode */ while (len--) { u8 i, data; @@ -417,12 +417,12 @@ static int write(struct fbtft_par *par, void *buf, size_t len) /* set data bus */ for (i = 0; i < 8; ++i) - gpio_set_value(par->gpio.db[i], data & (1 << i)); + gpiod_set_value(par->gpio.db[i], data & (1 << i)); /* set E */ - gpio_set_value(par->EPIN, 1); + gpiod_set_value(par->EPIN, 1); udelay(5); /* unset E - write */ - gpio_set_value(par->EPIN, 0); + gpiod_set_value(par->EPIN, 0); udelay(1); } diff --git a/drivers/staging/fbtft/fb_bd663474.c b/drivers/staging/fbtft/fb_bd663474.c index a58c514f4721..b6c6d66e4eb1 100644 --- a/drivers/staging/fbtft/fb_bd663474.c +++ b/drivers/staging/fbtft/fb_bd663474.c @@ -12,7 +12,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -24,8 +24,8 @@ static int init_display(struct fbtft_par *par) { - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ par->fbtftops.reset(par); diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c index 86e140244aab..d609a2b67db9 100644 --- a/drivers/staging/fbtft/fb_ili9163.c +++ b/drivers/staging/fbtft/fb_ili9163.c @@ -11,7 +11,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include <video/mipi_display.h> @@ -77,8 +77,8 @@ static int init_display(struct fbtft_par *par) { par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ write_reg(par, MIPI_DCS_SOFT_RESET); /* software reset */ mdelay(500); diff --git a/drivers/staging/fbtft/fb_ili9320.c b/drivers/staging/fbtft/fb_ili9320.c index 740c0acbecd8..ea6e001288ce 100644 --- a/drivers/staging/fbtft/fb_ili9320.c +++ b/drivers/staging/fbtft/fb_ili9320.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> diff --git a/drivers/staging/fbtft/fb_ili9325.c b/drivers/staging/fbtft/fb_ili9325.c index 2cf75f2e03e2..b090e7ab6fdd 100644 --- a/drivers/staging/fbtft/fb_ili9325.c +++ b/drivers/staging/fbtft/fb_ili9325.c @@ -10,7 +10,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -85,8 +85,8 @@ static int init_display(struct fbtft_par *par) { par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ bt &= 0x07; vc &= 0x07; diff --git a/drivers/staging/fbtft/fb_ili9340.c b/drivers/staging/fbtft/fb_ili9340.c index 430f21e50f4d..415183c7054a 100644 --- a/drivers/staging/fbtft/fb_ili9340.c +++ b/drivers/staging/fbtft/fb_ili9340.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include <video/mipi_display.h> diff --git a/drivers/staging/fbtft/fb_pcd8544.c b/drivers/staging/fbtft/fb_pcd8544.c index 32172f8f79f0..ad49973ad594 100644 --- a/drivers/staging/fbtft/fb_pcd8544.c +++ b/drivers/staging/fbtft/fb_pcd8544.c @@ -11,7 +11,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> @@ -119,7 +119,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) } /* Write data */ - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); ret = par->fbtftops.write(par, par->txbuf.buf, 6 * 84); if (ret < 0) dev_err(par->info->device, "write failed and returned: %d\n", diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c index 5d3b76ca74d8..70b37fc7fb66 100644 --- a/drivers/staging/fbtft/fb_ra8875.c +++ b/drivers/staging/fbtft/fb_ra8875.c @@ -9,7 +9,7 @@ #include <linux/init.h> #include <linux/delay.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include "fbtft.h" #define DRVNAME "fb_ra8875" @@ -39,7 +39,7 @@ static int write_spi(struct fbtft_par *par, void *buf, size_t len) static int init_display(struct fbtft_par *par) { - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__); diff --git a/drivers/staging/fbtft/fb_s6d1121.c b/drivers/staging/fbtft/fb_s6d1121.c index aa716f33420a..b3d0701880fe 100644 --- a/drivers/staging/fbtft/fb_s6d1121.c +++ b/drivers/staging/fbtft/fb_s6d1121.c @@ -12,7 +12,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -29,8 +29,8 @@ static int init_display(struct fbtft_par *par) { par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ /* Initialization sequence from Lib_UTFT */ diff --git a/drivers/staging/fbtft/fb_sh1106.c b/drivers/staging/fbtft/fb_sh1106.c index 00096f8d249a..6f7249493ea3 100644 --- a/drivers/staging/fbtft/fb_sh1106.c +++ b/drivers/staging/fbtft/fb_sh1106.c @@ -9,7 +9,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" diff --git a/drivers/staging/fbtft/fb_ssd1289.c b/drivers/staging/fbtft/fb_ssd1289.c index c9b18b3ba4ab..bbf75f795234 100644 --- a/drivers/staging/fbtft/fb_ssd1289.c +++ b/drivers/staging/fbtft/fb_ssd1289.c @@ -10,7 +10,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include "fbtft.h" @@ -28,8 +28,8 @@ static int init_display(struct fbtft_par *par) { par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ write_reg(par, 0x00, 0x0001); write_reg(par, 0x03, 0xA8A4); diff --git a/drivers/staging/fbtft/fb_ssd1305.c b/drivers/staging/fbtft/fb_ssd1305.c index 3515888d94c9..020fe48fed0b 100644 --- a/drivers/staging/fbtft/fb_ssd1305.c +++ b/drivers/staging/fbtft/fb_ssd1305.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -168,7 +168,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) } /* Write data */ - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); ret = par->fbtftops.write(par, par->txbuf.buf, par->info->var.xres * par->info->var.yres / 8); diff --git a/drivers/staging/fbtft/fb_ssd1306.c b/drivers/staging/fbtft/fb_ssd1306.c index 50172ddd94ae..d7c5e2e0eee9 100644 --- a/drivers/staging/fbtft/fb_ssd1306.c +++ b/drivers/staging/fbtft/fb_ssd1306.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -190,7 +190,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) } /* Write data */ - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); ret = par->fbtftops.write(par, par->txbuf.buf, xres * yres / 8); if (ret < 0) dev_err(par->info->device, "write failed and returned: %d\n", diff --git a/drivers/staging/fbtft/fb_ssd1325.c b/drivers/staging/fbtft/fb_ssd1325.c index f974f7fc4d79..8a3140d41d8b 100644 --- a/drivers/staging/fbtft/fb_ssd1325.c +++ b/drivers/staging/fbtft/fb_ssd1325.c @@ -6,7 +6,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -35,7 +35,7 @@ static int init_display(struct fbtft_par *par) { par->fbtftops.reset(par); - gpio_set_value(par->gpio.cs, 0); + gpiod_set_value(par->gpio.cs, 0); write_reg(par, 0xb3); write_reg(par, 0xf0); @@ -155,7 +155,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) } } - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); /* Write data */ ret = par->fbtftops.write(par, par->txbuf.buf, diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c index 0b614c84822e..9f54fe28d511 100644 --- a/drivers/staging/fbtft/fb_ssd1331.c +++ b/drivers/staging/fbtft/fb_ssd1331.c @@ -2,7 +2,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> @@ -80,8 +80,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) va_start(args, len); *buf = (u8)va_arg(args, unsigned int); - if (par->gpio.dc != -1) - gpio_set_value(par->gpio.dc, 0); + if (!par->gpio.dc) + gpiod_set_value(par->gpio.dc, 0); ret = par->fbtftops.write(par, par->buf, sizeof(u8)); if (ret < 0) { va_end(args); @@ -103,8 +103,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) return; } } - if (par->gpio.dc != -1) - gpio_set_value(par->gpio.dc, 1); + if (!par->gpio.dc) + gpiod_set_value(par->gpio.dc, 1); va_end(args); } diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c index 3da091b4d297..a8980d9f7557 100644 --- a/drivers/staging/fbtft/fb_ssd1351.c +++ b/drivers/staging/fbtft/fb_ssd1351.c @@ -2,7 +2,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> diff --git a/drivers/staging/fbtft/fb_tls8204.c b/drivers/staging/fbtft/fb_tls8204.c index 277b6ed9c725..bec6dd0ffb01 100644 --- a/drivers/staging/fbtft/fb_tls8204.c +++ b/drivers/staging/fbtft/fb_tls8204.c @@ -12,7 +12,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> @@ -94,7 +94,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) /* The display is 102x68 but the LCD is 84x48. * Set the write pointer at the start of each row. */ - gpio_set_value(par->gpio.dc, 0); + gpiod_set_value(par->gpio.dc, 0); write_reg(par, 0x80 | 0); write_reg(par, 0x40 | y); @@ -109,7 +109,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) *buf++ = ch; } /* Write the row */ - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); ret = par->fbtftops.write(par, par->txbuf.buf, WIDTH); if (ret < 0) { dev_err(par->info->device, diff --git a/drivers/staging/fbtft/fb_uc1611.c b/drivers/staging/fbtft/fb_uc1611.c index dfaf8bc70f73..65681d0fe200 100644 --- a/drivers/staging/fbtft/fb_uc1611.c +++ b/drivers/staging/fbtft/fb_uc1611.c @@ -10,7 +10,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> @@ -251,7 +251,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) } break; } - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); /* Write data */ ret = par->fbtftops.write(par, par->txbuf.buf, len / 2); diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c index 0a3531d6eb39..e4ccc73868a7 100644 --- a/drivers/staging/fbtft/fb_uc1701.c +++ b/drivers/staging/fbtft/fb_uc1701.c @@ -11,7 +11,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> @@ -136,9 +136,9 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) write_reg(par, LCD_PAGE_ADDRESS | (u8)y); write_reg(par, 0x00); write_reg(par, LCD_COL_ADDRESS); - gpio_set_value(par->gpio.dc, 1); + gpiod_set_value(par->gpio.dc, 1); ret = par->fbtftops.write(par, par->txbuf.buf, WIDTH); - gpio_set_value(par->gpio.dc, 0); + gpiod_set_value(par->gpio.dc, 0); } if (ret < 0) diff --git a/drivers/staging/fbtft/fb_upd161704.c b/drivers/staging/fbtft/fb_upd161704.c index acc425fdf34e..564a38e34440 100644 --- a/drivers/staging/fbtft/fb_upd161704.c +++ b/drivers/staging/fbtft/fb_upd161704.c @@ -12,7 +12,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -26,8 +26,8 @@ static int init_display(struct fbtft_par *par) { par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ /* Initialization sequence from Lib_UTFT */ diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c index e77178157f1b..0a5206d28da4 100644 --- a/drivers/staging/fbtft/fb_watterott.c +++ b/drivers/staging/fbtft/fb_watterott.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/delay.h> #include "fbtft.h" @@ -213,7 +213,7 @@ static int set_var(struct fbtft_par *par) static int verify_gpios(struct fbtft_par *par) { - if (par->gpio.reset < 0) { + if (!par->gpio.reset) { dev_err(par->info->device, "Missing 'reset' gpio. Aborting.\n"); return -EINVAL; } diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c index 8ce1ff9b6c2a..2ea814d0dca5 100644 --- a/drivers/staging/fbtft/fbtft-bus.c +++ b/drivers/staging/fbtft/fbtft-bus.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" @@ -135,8 +135,8 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len) remain = len / 2; vmem16 = (u16 *)(par->info->screen_buffer + offset); - if (par->gpio.dc != -1) - gpio_set_value(par->gpio.dc, 1); + if (!par->gpio.dc) + gpiod_set_value(par->gpio.dc, 1); /* non buffered write */ if (!par->txbuf.buf) diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index a2df02d97a8e..de3f431abc15 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -16,7 +16,7 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/fb.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> #include <linux/uaccess.h> @@ -24,7 +24,6 @@ #include <linux/platform_device.h> #include <linux/spinlock.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <video/mipi_display.h> #include "fbtft.h" @@ -38,8 +37,8 @@ int fbtft_write_buf_dc(struct fbtft_par *par, void *buf, size_t len, int dc) { int ret; - if (gpio_is_valid(par->gpio.dc)) - gpio_set_value(par->gpio.dc, dc); + if (par->gpio.dc) + gpiod_set_value(par->gpio.dc, dc); ret = par->fbtftops.write(par, buf, len); if (ret < 0) @@ -71,127 +70,27 @@ void fbtft_dbg_hex(const struct device *dev, int groupsize, } EXPORT_SYMBOL(fbtft_dbg_hex); -static unsigned long fbtft_request_gpios_match(struct fbtft_par *par, - const struct fbtft_gpio *gpio) -{ - int ret; - unsigned int val; - - fbtft_par_dbg(DEBUG_REQUEST_GPIOS_MATCH, par, "%s('%s')\n", - __func__, gpio->name); - - if (strcasecmp(gpio->name, "reset") == 0) { - par->gpio.reset = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; - } else if (strcasecmp(gpio->name, "dc") == 0) { - par->gpio.dc = gpio->gpio; - return GPIOF_OUT_INIT_LOW; - } else if (strcasecmp(gpio->name, "cs") == 0) { - par->gpio.cs = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; - } else if (strcasecmp(gpio->name, "wr") == 0) { - par->gpio.wr = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; - } else if (strcasecmp(gpio->name, "rd") == 0) { - par->gpio.rd = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; - } else if (strcasecmp(gpio->name, "latch") == 0) { - par->gpio.latch = gpio->gpio; - return GPIOF_OUT_INIT_LOW; - } else if (gpio->name[0] == 'd' && gpio->name[1] == 'b') { - ret = kstrtouint(&gpio->name[2], 10, &val); - if (ret == 0 && val < 16) { - par->gpio.db[val] = gpio->gpio; - return GPIOF_OUT_INIT_LOW; - } - } else if (strcasecmp(gpio->name, "led") == 0) { - par->gpio.led[0] = gpio->gpio; - return GPIOF_OUT_INIT_LOW; - } else if (strcasecmp(gpio->name, "led_") == 0) { - par->gpio.led[0] = gpio->gpio; - return GPIOF_OUT_INIT_HIGH; - } - - return FBTFT_GPIO_NO_MATCH; -} - -static int fbtft_request_gpios(struct fbtft_par *par) -{ - struct fbtft_platform_data *pdata = par->pdata; - const struct fbtft_gpio *gpio; - unsigned long flags; - int ret; - - if (!(pdata && pdata->gpios)) - return 0; - - gpio = pdata->gpios; - while (gpio->name[0]) { - flags = FBTFT_GPIO_NO_MATCH; - /* if driver provides match function, try it first, - * if no match use our own - */ - if (par->fbtftops.request_gpios_match) - flags = par->fbtftops.request_gpios_match(par, gpio); - if (flags == FBTFT_GPIO_NO_MATCH) - flags = fbtft_request_gpios_match(par, gpio); - if (flags != FBTFT_GPIO_NO_MATCH) { - ret = devm_gpio_request_one(par->info->device, - gpio->gpio, flags, - par->info->device->driver->name); - if (ret < 0) { - dev_err(par->info->device, - "%s: gpio_request_one('%s'=%d) failed with %d\n", - __func__, gpio->name, - gpio->gpio, ret); - return ret; - } - fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, - "%s: '%s' = GPIO%d\n", - __func__, gpio->name, gpio->gpio); - } - gpio++; - } - - return 0; -} - #ifdef CONFIG_OF static int fbtft_request_one_gpio(struct fbtft_par *par, - const char *name, int index, int *gpiop) + const char *name, int index, + struct gpio_desc **gpiop) { struct device *dev = par->info->device; struct device_node *node = dev->of_node; - int gpio, flags, ret = 0; - enum of_gpio_flags of_flags; + int ret = 0; if (of_find_property(node, name, NULL)) { - gpio = of_get_named_gpio_flags(node, name, index, &of_flags); - if (gpio == -ENOENT) - return 0; - if (gpio == -EPROBE_DEFER) - return gpio; - if (gpio < 0) { + *gpiop = devm_gpiod_get_index(dev, dev->driver->name, index, + GPIOD_OUT_HIGH); + if (IS_ERR(*gpiop)) { + ret = PTR_ERR(*gpiop); dev_err(dev, - "failed to get '%s' from DT\n", name); - return gpio; - } - - /* active low translates to initially low */ - flags = (of_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : - GPIOF_OUT_INIT_HIGH; - ret = devm_gpio_request_one(dev, gpio, flags, - dev->driver->name); - if (ret) { - dev_err(dev, - "gpio_request_one('%s'=%d) failed with %d\n", - name, gpio, ret); + "Failed to request %s GPIO:%d\n", name, ret); return ret; + } - if (gpiop) - *gpiop = gpio; - fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, "%s: '%s' = GPIO%d\n", - __func__, name, gpio); + fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, "%s: '%s' GPIO\n", + __func__, name); } return ret; @@ -254,9 +153,9 @@ static int fbtft_backlight_update_status(struct backlight_device *bd) if ((bd->props.power == FB_BLANK_UNBLANK) && (bd->props.fb_blank == FB_BLANK_UNBLANK)) - gpio_set_value(par->gpio.led[0], polarity); + gpiod_set_value(par->gpio.led[0], polarity); else - gpio_set_value(par->gpio.led[0], !polarity); + gpiod_set_value(par->gpio.led[0], !polarity); return 0; } @@ -286,7 +185,7 @@ void fbtft_register_backlight(struct fbtft_par *par) struct backlight_device *bd; struct backlight_properties bl_props = { 0, }; - if (par->gpio.led[0] == -1) { + if (!par->gpio.led[0]) { fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s(): led pin not set, exiting.\n", __func__); return; @@ -295,7 +194,7 @@ void fbtft_register_backlight(struct fbtft_par *par) bl_props.type = BACKLIGHT_RAW; /* 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])) + if (!gpiod_get_value(par->gpio.led[0])) par->polarity = true; bd = backlight_device_register(dev_driver_string(par->info->device), @@ -333,12 +232,12 @@ static void fbtft_set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, static void fbtft_reset(struct fbtft_par *par) { - if (par->gpio.reset == -1) + if (!par->gpio.reset) return; fbtft_par_dbg(DEBUG_RESET, par, "%s()\n", __func__); - gpio_set_value_cansleep(par->gpio.reset, 0); + gpiod_set_value_cansleep(par->gpio.reset, 0); usleep_range(20, 40); - gpio_set_value_cansleep(par->gpio.reset, 1); + gpiod_set_value_cansleep(par->gpio.reset, 1); msleep(120); } @@ -663,7 +562,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, int txbuflen = display->txbuflen; unsigned int bpp = display->bpp; unsigned int fps = display->fps; - int vmem_size, i; + int vmem_size; const s16 *init_sequence = display->init_sequence; char *gamma = display->gamma; u32 *gamma_curves = NULL; @@ -841,19 +740,6 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, par->txbuf.len = txbuflen; } - /* Initialize gpios to disabled */ - par->gpio.reset = -1; - par->gpio.dc = -1; - par->gpio.rd = -1; - par->gpio.wr = -1; - par->gpio.cs = -1; - par->gpio.latch = -1; - for (i = 0; i < 16; i++) { - par->gpio.db[i] = -1; - par->gpio.led[i] = -1; - par->gpio.aux[i] = -1; - } - /* default fbtft operations */ par->fbtftops.write = fbtft_write_spi; par->fbtftops.read = fbtft_read_spi; @@ -863,7 +749,6 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, par->fbtftops.reset = fbtft_reset; par->fbtftops.mkdirty = fbtft_mkdirty; par->fbtftops.update_display = fbtft_update_display; - par->fbtftops.request_gpios = fbtft_request_gpios; if (display->backlight) par->fbtftops.register_backlight = fbtft_register_backlight; @@ -1035,8 +920,8 @@ static int fbtft_init_display_dt(struct fbtft_par *par) return -EINVAL; par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ while (p) { if (val & FBTFT_OF_INIT_CMD) { @@ -1126,8 +1011,8 @@ int fbtft_init_display(struct fbtft_par *par) } par->fbtftops.reset(par); - if (par->gpio.cs != -1) - gpio_set_value(par->gpio.cs, 0); /* Activate chip */ + if (!par->gpio.cs) + gpiod_set_value(par->gpio.cs, 0); /* Activate chip */ i = 0; while (i < FBTFT_MAX_INIT_SEQUENCE) { @@ -1227,7 +1112,7 @@ static int fbtft_verify_gpios(struct fbtft_par *par) fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__); if (pdata->display.buswidth != 9 && par->startbyte == 0 && - par->gpio.dc < 0) { + !par->gpio.dc) { dev_err(par->info->device, "Missing info about 'dc' gpio. Aborting.\n"); return -EINVAL; @@ -1236,12 +1121,12 @@ static int fbtft_verify_gpios(struct fbtft_par *par) if (!par->pdev) return 0; - if (par->gpio.wr < 0) { + if (!par->gpio.wr) { dev_err(par->info->device, "Missing 'wr' gpio. Aborting.\n"); return -EINVAL; } for (i = 0; i < pdata->display.buswidth; i++) { - if (par->gpio.db[i] < 0) { + if (!par->gpio.db[i]) { dev_err(par->info->device, "Missing 'db%02d' gpio. Aborting.\n", i); return -EINVAL; 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; diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index ac427baa464a..7fdd3b0851ef 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -27,7 +27,7 @@ */ struct fbtft_gpio { char name[FBTFT_GPIO_NAME_SIZE]; - unsigned int gpio; + struct gpio_desc *gpio; }; struct fbtft_par; @@ -134,7 +134,6 @@ struct fbtft_display { */ struct fbtft_platform_data { struct fbtft_display display; - const struct fbtft_gpio *gpios; unsigned int rotate; bool bgr; unsigned int fps; @@ -207,15 +206,15 @@ struct fbtft_par { unsigned int dirty_lines_start; unsigned int dirty_lines_end; struct { - int reset; - int dc; - int rd; - int wr; - int latch; - int cs; - int db[16]; - int led[16]; - int aux[16]; + struct gpio_desc *reset; + struct gpio_desc *dc; + struct gpio_desc *rd; + struct gpio_desc *wr; + struct gpio_desc *latch; + struct gpio_desc *cs; + struct gpio_desc *db[16]; + struct gpio_desc *led[16]; + struct gpio_desc *aux[16]; } gpio; const s16 *init_sequence; struct { diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c index 046f9d355ecb..5f6cd0816d58 100644 --- a/drivers/staging/fbtft/fbtft_device.c +++ b/drivers/staging/fbtft/fbtft_device.c @@ -8,7 +8,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <video/mipi_display.h> @@ -45,11 +45,6 @@ static int mode = -1; module_param(mode, int, 0000); MODULE_PARM_DESC(mode, "SPI mode (override device default)"); -static char *gpios; -module_param(gpios, charp, 0000); -MODULE_PARM_DESC(gpios, - "List of gpios. Comma separated with the form: reset:23,dc:24 (when overriding the default, all gpios must be specified)"); - static unsigned int fps; module_param(fps, uint, 0000); MODULE_PARM_DESC(fps, "Frames per second (override driver default)"); @@ -101,7 +96,7 @@ MODULE_PARM_DESC(debug, static unsigned int verbose = 3; module_param(verbose, uint, 0000); MODULE_PARM_DESC(verbose, - "0 silent, >0 show gpios, >1 show devices, >2 show devices before (default=3)"); + "0 silent, >1 show devices, >2 show devices before (default=3)"); struct fbtft_device_display { char *name; @@ -279,12 +274,6 @@ static struct fbtft_device_display displays[] = { .buswidth = 8, .backlight = 1, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, .gamma = ADAFRUIT18_GAMMA, } } @@ -302,12 +291,6 @@ static struct fbtft_device_display displays[] = { adafruit18_green_tab_set_addr_win, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, .gamma = ADAFRUIT18_GAMMA, } } @@ -323,11 +306,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "led", 23 }, - {}, - }, } } }, { @@ -342,12 +320,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, } } }, { @@ -362,12 +334,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, } } }, { @@ -380,11 +346,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, } } }, { @@ -399,12 +360,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, .init_sequence = cberry28_init_sequence, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 22 }, - { "led", 18 }, - {}, - }, .gamma = CBERRY28_GAMMA, } } @@ -420,9 +375,6 @@ static struct fbtft_device_display displays[] = { .buswidth = 8, .backlight = FBTFT_ONBOARD_BACKLIGHT, }, - .gpios = (const struct fbtft_gpio []) { - {}, - }, }, } } @@ -437,11 +389,6 @@ static struct fbtft_device_display displays[] = { .buswidth = 8, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 13 }, - { "dc", 6 }, - {}, - }, } } }, { @@ -458,11 +405,6 @@ static struct fbtft_device_display displays[] = { .height = 272, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, } } }, { @@ -479,11 +421,6 @@ static struct fbtft_device_display displays[] = { .height = 480, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, } } }, { @@ -496,10 +433,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "dc", 24 }, - {}, - }, } } }, { @@ -512,9 +445,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 9, }, - .gpios = (const struct fbtft_gpio []) { - {}, - }, } } }, { @@ -523,13 +453,6 @@ static struct fbtft_device_display displays[] = { .modalias = "flexfb", .max_speed_hz = 32000000, .mode = SPI_MODE_0, - .platform_data = &(struct fbtft_platform_data) { - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, - } } }, { .name = "flexpfb", @@ -538,24 +461,6 @@ static struct fbtft_device_display displays[] = { .id = 0, .dev = { .release = fbtft_device_pdev_release, - .platform_data = &(struct fbtft_platform_data) { - .gpios = (const struct fbtft_gpio []) { - { "reset", 17 }, - { "dc", 1 }, - { "wr", 0 }, - { "cs", 21 }, - { "db00", 9 }, - { "db01", 11 }, - { "db02", 18 }, - { "db03", 23 }, - { "db04", 24 }, - { "db05", 25 }, - { "db06", 8 }, - { "db07", 7 }, - { "led", 4 }, - {}, - }, - }, } } }, { @@ -570,11 +475,6 @@ static struct fbtft_device_display displays[] = { .backlight = FBTFT_ONBOARD_BACKLIGHT, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 24 }, - { "dc", 25 }, - {}, - }, } } }, { @@ -588,12 +488,6 @@ static struct fbtft_device_display displays[] = { .buswidth = 8, .backlight = 1, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 23 }, - {}, - }, } } }, { @@ -609,11 +503,6 @@ static struct fbtft_device_display displays[] = { }, .startbyte = 0x70, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "led", 18 }, - {}, - }, } } }, { @@ -631,11 +520,6 @@ static struct fbtft_device_display displays[] = { .startbyte = 0x70, .bgr = true, .fps = 50, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "led", 18 }, - {}, - }, .gamma = HY28B_GAMMA, } } @@ -652,12 +536,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 22 }, - {}, - }, } } }, { @@ -673,22 +551,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = false, - .gpios = (const struct fbtft_gpio []) { - /* Wiring for LCD adapter kit */ - { "reset", 7 }, - { "dc", 0 }, /* rev 2: 2 */ - { "wr", 1 }, /* rev 2: 3 */ - { "cs", 8 }, - { "db00", 17 }, - { "db01", 18 }, - { "db02", 21 }, /* rev 2: 27 */ - { "db03", 22 }, - { "db04", 23 }, - { "db05", 24 }, - { "db06", 25 }, - { "db07", 4 }, - {} - }, }, } } @@ -705,9 +567,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - {}, - }, }, } } @@ -723,11 +582,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, } } }, { @@ -743,12 +597,6 @@ static struct fbtft_device_display displays[] = { }, .startbyte = 0x70, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, } } }, { @@ -763,11 +611,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "led", 18 }, - {}, - }, } } }, { @@ -777,10 +620,6 @@ static struct fbtft_device_display displays[] = { .max_speed_hz = 4000000, .mode = SPI_MODE_3, .platform_data = &(struct fbtft_platform_data) { - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - {}, - }, } } }, { @@ -793,12 +632,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 23 }, - {}, - }, } } }, { @@ -811,12 +644,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 23 }, - {}, - }, } } }, { @@ -831,9 +658,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - {}, - }, } } }, { @@ -849,12 +673,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 22 }, - {}, - }, } } }, { @@ -871,10 +689,6 @@ static struct fbtft_device_display displays[] = { .init_sequence = pitft_init_sequence, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "dc", 25 }, - {}, - }, } } }, { @@ -888,11 +702,6 @@ static struct fbtft_device_display displays[] = { .buswidth = 8, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 24 }, - { "dc", 25 }, - {}, - }, .gamma = PIOLED_GAMMA } } @@ -908,12 +717,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 23 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, } } }, { @@ -928,12 +731,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 23 }, - {}, - }, } } }, { @@ -946,11 +743,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, } } }, { @@ -968,9 +760,6 @@ static struct fbtft_device_display displays[] = { .fbtftops.write = write_gpio16_wr_slow, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - {}, - }, }, }, } @@ -988,9 +777,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - {}, - }, }, }, } @@ -1010,9 +796,6 @@ static struct fbtft_device_display displays[] = { fbtft_write_gpio16_wr_latched, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - {}, - }, }, }, } @@ -1028,11 +811,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - {}, - }, } } }, { @@ -1044,9 +822,6 @@ static struct fbtft_device_display displays[] = { .chip_select = 0, .mode = SPI_MODE_0, .platform_data = &(struct fbtft_platform_data) { - .gpios = (const struct fbtft_gpio []) { - {}, - }, } } }, { @@ -1059,11 +834,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 24 }, - { "dc", 25 }, - {}, - }, } } }, { @@ -1078,12 +848,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, } } }, { @@ -1098,12 +862,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 25 }, - { "dc", 24 }, - { "led", 18 }, - {}, - }, } } }, { @@ -1118,12 +876,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 15 }, - { "dc", 25 }, - { "led_", 18 }, - {}, - }, } } }, { @@ -1138,12 +890,6 @@ static struct fbtft_device_display displays[] = { .backlight = 1, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 15 }, - { "dc", 25 }, - { "led_", 18 }, - {}, - }, } } }, { @@ -1156,11 +902,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 24 }, - { "dc", 25 }, - {}, - }, } } }, { @@ -1177,11 +918,6 @@ static struct fbtft_device_display displays[] = { waveshare32b_init_sequence, }, .bgr = true, - .gpios = (const struct fbtft_gpio []) { - { "reset", 27 }, - { "dc", 22 }, - {}, - }, } } }, { @@ -1194,11 +930,6 @@ static struct fbtft_device_display displays[] = { .display = { .buswidth = 8, }, - .gpios = (const struct fbtft_gpio []) { - { "reset", 24 }, - { "dc", 25 }, - {}, - }, } } }, { @@ -1211,9 +942,6 @@ static struct fbtft_device_display displays[] = { .max_speed_hz = 0, .mode = SPI_MODE_0, .platform_data = &(struct fbtft_platform_data) { - .gpios = (const struct fbtft_gpio []) { - {}, - }, } }, .pdev = &(struct platform_device) { @@ -1222,9 +950,6 @@ static struct fbtft_device_display displays[] = { .dev = { .release = fbtft_device_pdev_release, .platform_data = &(struct fbtft_platform_data) { - .gpios = (const struct fbtft_gpio []) { - {}, - }, }, }, }, @@ -1246,30 +971,30 @@ static int write_gpio16_wr_slow(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; @@ -1289,9 +1014,6 @@ static void adafruit18_green_tab_set_addr_win(struct fbtft_par *par, write_reg(par, 0x2C); } -/* used if gpios parameter is present */ -static struct fbtft_gpio fbtft_device_param_gpios[MAX_GPIOS + 1] = { }; - static void fbtft_device_pdev_release(struct device *dev) { /* Needed to silence this message: @@ -1382,11 +1104,8 @@ static int __init fbtft_device_init(void) { struct spi_board_info *spi = NULL; struct fbtft_platform_data *pdata; - const struct fbtft_gpio *gpio = NULL; - char *p_gpio, *p_name, *p_num; bool found = false; int i = 0; - long val; int ret = 0; if (!name) { @@ -1404,38 +1123,6 @@ static int __init fbtft_device_init(void) return -EINVAL; } - /* parse module parameter: gpios */ - while ((p_gpio = strsep(&gpios, ","))) { - if (!strchr(p_gpio, ':')) { - pr_err("error: missing ':' in gpios parameter: %s\n", - p_gpio); - return -EINVAL; - } - p_num = p_gpio; - p_name = strsep(&p_num, ":"); - if (!p_name || !p_num) { - pr_err("something bad happened parsing gpios parameter: %s\n", - p_gpio); - return -EINVAL; - } - ret = kstrtol(p_num, 10, &val); - if (ret) { - pr_err("could not parse number in gpios parameter: %s:%s\n", - p_name, p_num); - return -EINVAL; - } - strncpy(fbtft_device_param_gpios[i].name, p_name, - FBTFT_GPIO_NAME_SIZE - 1); - fbtft_device_param_gpios[i++].gpio = (int)val; - if (i == MAX_GPIOS) { - pr_err("gpios parameter: exceeded max array size: %d\n", - MAX_GPIOS); - return -EINVAL; - } - } - if (fbtft_device_param_gpios[0].name[0]) - gpio = fbtft_device_param_gpios; - if (verbose > 2) { pr_spi_devices(); /* print list of registered SPI devices */ pr_p_devices(); /* print list of 'fb' platform devices */ @@ -1516,8 +1203,6 @@ static int __init fbtft_device_init(void) pdata->txbuflen = txbuflen; if (init_num) pdata->display.init_sequence = init; - if (gpio) - pdata->gpios = gpio; if (custom) { pdata->display.width = width; pdata->display.height = height; @@ -1549,19 +1234,6 @@ static int __init fbtft_device_init(void) return -EINVAL; } - if (verbose && pdata && pdata->gpios) { - gpio = pdata->gpios; - pr_info("GPIOS used by '%s':\n", name); - found = false; - while (verbose && gpio->name[0]) { - pr_info("'%s' = GPIO%d\n", gpio->name, gpio->gpio); - gpio++; - found = true; - } - if (!found) - pr_info("(none)\n"); - } - if (spi_device && (verbose > 1)) pr_spi_devices(); if (p_device && (verbose > 1)) diff --git a/drivers/staging/fbtft/flexfb.c b/drivers/staging/fbtft/flexfb.c index 2af474469e7d..c5fa59105a43 100644 --- a/drivers/staging/fbtft/flexfb.c +++ b/drivers/staging/fbtft/flexfb.c @@ -9,7 +9,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/vmalloc.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/spi/spi.h> #include <linux/delay.h> @@ -521,7 +521,7 @@ static int flexfb_verify_gpios_dc(struct fbtft_par *par) { fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__); - if (par->gpio.dc < 0) { + if (!par->gpio.dc) { dev_err(par->info->device, "Missing info about 'dc' gpio. Aborting.\n"); return -EINVAL; @@ -537,22 +537,22 @@ static int flexfb_verify_gpios_db(struct fbtft_par *par) fbtft_par_dbg(DEBUG_VERIFY_GPIOS, par, "%s()\n", __func__); - if (par->gpio.dc < 0) { + if (!par->gpio.dc) { dev_err(par->info->device, "Missing info about 'dc' gpio. Aborting.\n"); return -EINVAL; } - if (par->gpio.wr < 0) { + if (!par->gpio.wr) { dev_err(par->info->device, "Missing info about 'wr' gpio. Aborting.\n"); return -EINVAL; } - if (latched && (par->gpio.latch < 0)) { + if (latched && !par->gpio.latch) { dev_err(par->info->device, "Missing info about 'latch' gpio. Aborting.\n"); return -EINVAL; } if (latched) num_db = buswidth / 2; for (i = 0; i < num_db; i++) { - if (par->gpio.db[i] < 0) { + if (!par->gpio.db[i]) { dev_err(par->info->device, "Missing info about 'db%02d' gpio. Aborting.\n", i);

[v2] Staging: fbtft: Switch to the gpio descriptor interface

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