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author | Arnd Bergmann <arnd@arndb.de> | 2019-09-11 23:20:45 +0200 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2022-05-07 22:55:48 +0200 |
commit | f0b66b606ad0409c55539aa8326dd6b386b6594a (patch) | |
tree | 0af704c6ce277c69e8ec751e273a829f2950bb98 | |
parent | 0ca7231fe3a98c61f3a87c4cb99082cbfa5210f0 (diff) | |
download | linux-stable-f0b66b606ad0409c55539aa8326dd6b386b6594a.tar.gz linux-stable-f0b66b606ad0409c55539aa8326dd6b386b6594a.tar.bz2 linux-stable-f0b66b606ad0409c55539aa8326dd6b386b6594a.zip |
ARM: pxa: zylonite: use gpio lookup instead mfp header
The mach/mfp.h header is only used by this one driver
for hardcoded gpio numbers. Change that to use a lookup
table instead.
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-input@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r-- | arch/arm/mach-pxa/zylonite.c | 31 | ||||
-rw-r--r-- | drivers/input/touchscreen/zylonite-wm97xx.c | 20 |
2 files changed, 42 insertions, 9 deletions
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c index c48dd6d03df9..ba6dc86da855 100644 --- a/arch/arm/mach-pxa/zylonite.c +++ b/arch/arm/mach-pxa/zylonite.c @@ -32,6 +32,7 @@ #include <linux/platform_data/usb-ohci-pxa27x.h> #include <linux/platform_data/keypad-pxa27x.h> #include <linux/platform_data/mtd-nand-pxa3xx.h> +#include <mach/mfp.h> #include "devices.h" #include "generic.h" @@ -425,6 +426,35 @@ static void __init zylonite_init_ohci(void) static inline void zylonite_init_ohci(void) {} #endif /* CONFIG_USB_OHCI_HCD || CONFIG_USB_OHCI_HCD_MODULE */ +static struct gpiod_lookup_table zylonite_wm97xx_touch_gpio15_table = { + .dev_id = "wm97xx-touch.0", + .table = { + GPIO_LOOKUP("gpio-pxa", mfp_to_gpio(MFP_PIN_GPIO15), + "touch", GPIO_ACTIVE_LOW), + { }, + }, +}; + +static struct gpiod_lookup_table zylonite_wm97xx_touch_gpio26_table = { + .dev_id = "wm97xx-touch.0", + .table = { + GPIO_LOOKUP("gpio-pxa", mfp_to_gpio(MFP_PIN_GPIO26), + "touch", GPIO_ACTIVE_LOW), + { }, + }, +}; + +static void __init zylonite_init_wm97xx_touch(void) +{ + if (!IS_ENABLED(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE)) + return; + + if (cpu_is_pxa320()) + gpiod_add_lookup_table(&zylonite_wm97xx_touch_gpio15_table); + else + gpiod_add_lookup_table(&zylonite_wm97xx_touch_gpio26_table); +} + static void __init zylonite_init(void) { pxa_set_ffuart_info(NULL); @@ -450,6 +480,7 @@ static void __init zylonite_init(void) zylonite_init_nand(); zylonite_init_leds(); zylonite_init_ohci(); + zylonite_init_wm97xx_touch(); } MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)") diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c index f57bdf083188..cabdd6e3c6f8 100644 --- a/drivers/input/touchscreen/zylonite-wm97xx.c +++ b/drivers/input/touchscreen/zylonite-wm97xx.c @@ -17,14 +17,13 @@ #include <linux/moduleparam.h> #include <linux/kernel.h> #include <linux/delay.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/irq.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/soc/pxa/cpu.h> #include <linux/wm97xx.h> -#include <mach/mfp.h> #include <mach/regs-ac97.h> struct continuous { @@ -181,14 +180,17 @@ static struct wm97xx_mach_ops zylonite_mach_ops = { static int zylonite_wm97xx_probe(struct platform_device *pdev) { struct wm97xx *wm = platform_get_drvdata(pdev); - int gpio_touch_irq; - - if (cpu_is_pxa320()) - gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15); - else - gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26); + struct gpio_desc *gpio_touch_irq; + int err; + + gpio_touch_irq = devm_gpiod_get(&pdev->dev, "touch", GPIOD_IN); + err = PTR_ERR_OR_ZERO(gpio_touch_irq); + if (err) { + dev_err(&pdev->dev, "Cannot get irq gpio: %d\n", err); + return err; + } - wm->pen_irq = gpio_to_irq(gpio_touch_irq); + wm->pen_irq = gpiod_to_irq(gpio_touch_irq); irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH); wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN, |