From 64e14e90646cafa9940cead9f7ba336c55671bf9 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 25 Nov 2019 19:30:57 +0200 Subject: [PATCH] pinctrl: lynxpoint: Switch to pin control API When all preparations are done, we may switch to pin control API. Reviewed-by: Linus Walleij Signed-off-by: Andy Shevchenko Acked-by: Mika Westerberg --- drivers/pinctrl/intel/Kconfig | 3 ++ drivers/pinctrl/intel/pinctrl-lynxpoint.c | 67 +++++-------------------------- 2 files changed, 13 insertions(+), 57 deletions(-) diff --git a/drivers/pinctrl/intel/Kconfig b/drivers/pinctrl/intel/Kconfig index c2e6bc9..ee440ec 100644 --- a/drivers/pinctrl/intel/Kconfig +++ b/drivers/pinctrl/intel/Kconfig @@ -34,6 +34,9 @@ config PINCTRL_CHERRYVIEW config PINCTRL_LYNXPOINT tristate "Intel Lynxpoint pinctrl and GPIO driver" depends on ACPI + select PINMUX + select PINCONF + select GENERIC_PINCONF select GPIOLIB select GPIOLIB_IRQCHIP help diff --git a/drivers/pinctrl/intel/pinctrl-lynxpoint.c b/drivers/pinctrl/intel/pinctrl-lynxpoint.c index 795a9c7..774b226 100644 --- a/drivers/pinctrl/intel/pinctrl-lynxpoint.c +++ b/drivers/pinctrl/intel/pinctrl-lynxpoint.c @@ -577,43 +577,6 @@ static const struct pinctrl_desc lptlp_pinctrl_desc = { .owner = THIS_MODULE, }; -static int lp_gpio_request(struct gpio_chip *chip, unsigned int offset) -{ - struct intel_pinctrl *lg = gpiochip_get_data(chip); - void __iomem *reg = lp_gpio_reg(chip, offset, LP_CONFIG1); - void __iomem *conf2 = lp_gpio_reg(chip, offset, LP_CONFIG2); - u32 value; - - pm_runtime_get(lg->dev); /* should we put if failed */ - - /* - * Reconfigure pin to GPIO mode if needed and issue a warning, - * since we expect firmware to configure it properly. - */ - value = ioread32(reg); - if ((value & USE_SEL_MASK) != USE_SEL_GPIO) { - iowrite32((value & USE_SEL_MASK) | USE_SEL_GPIO, reg); - dev_warn(lg->dev, FW_BUG "pin %u forcibly reconfigured as GPIO\n", offset); - } - - /* enable input sensing */ - iowrite32(ioread32(conf2) & ~GPINDIS_BIT, conf2); - - - return 0; -} - -static void lp_gpio_free(struct gpio_chip *chip, unsigned int offset) -{ - struct intel_pinctrl *lg = gpiochip_get_data(chip); - void __iomem *conf2 = lp_gpio_reg(chip, offset, LP_CONFIG2); - - /* disable input sensing */ - iowrite32(ioread32(conf2) | GPINDIS_BIT, conf2); - - pm_runtime_put(lg->dev); -} - static int lp_gpio_get(struct gpio_chip *chip, unsigned int offset) { void __iomem *reg = lp_gpio_reg(chip, offset, LP_CONFIG1); @@ -638,31 +601,15 @@ static void lp_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) static int lp_gpio_direction_input(struct gpio_chip *chip, unsigned int offset) { - struct intel_pinctrl *lg = gpiochip_get_data(chip); - void __iomem *reg = lp_gpio_reg(chip, offset, LP_CONFIG1); - unsigned long flags; - - raw_spin_lock_irqsave(&lg->lock, flags); - iowrite32(ioread32(reg) | DIR_BIT, reg); - raw_spin_unlock_irqrestore(&lg->lock, flags); - - return 0; + return pinctrl_gpio_direction_input(chip->base + offset); } static int lp_gpio_direction_output(struct gpio_chip *chip, unsigned int offset, int value) { - struct intel_pinctrl *lg = gpiochip_get_data(chip); - void __iomem *reg = lp_gpio_reg(chip, offset, LP_CONFIG1); - unsigned long flags; - lp_gpio_set(chip, offset, value); - raw_spin_lock_irqsave(&lg->lock, flags); - iowrite32(ioread32(reg) & ~DIR_BIT, reg); - raw_spin_unlock_irqrestore(&lg->lock, flags); - - return 0; + return pinctrl_gpio_direction_output(chip->base + offset); } static int lp_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) @@ -874,6 +821,12 @@ static int lp_gpio_probe(struct platform_device *pdev) lg->pctldesc.pins = lg->soc->pins; lg->pctldesc.npins = lg->soc->npins; + lg->pctldev = devm_pinctrl_register(dev, &lg->pctldesc, lg); + if (IS_ERR(lg->pctldev)) { + dev_err(dev, "failed to register pinctrl driver\n"); + return PTR_ERR(lg->pctldev); + } + platform_set_drvdata(pdev, lg); io_rc = platform_get_resource(pdev, IORESOURCE_IO, 0); @@ -902,8 +855,8 @@ static int lp_gpio_probe(struct platform_device *pdev) gc = &lg->chip; gc->label = dev_name(dev); gc->owner = THIS_MODULE; - gc->request = lp_gpio_request; - gc->free = lp_gpio_free; + gc->request = gpiochip_generic_request; + gc->free = gpiochip_generic_free; gc->direction_input = lp_gpio_direction_input; gc->direction_output = lp_gpio_direction_output; gc->get = lp_gpio_get; -- 2.7.4