From: Laurent Pinchart Date: Thu, 14 Feb 2013 21:35:09 +0000 (+0100) Subject: sh-pfc: Add function to retrieve a pin instance from its pin number X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=934cb02bab9003bf65afe73e9146a1ea63b26c40;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git sh-pfc: Add function to retrieve a pin instance from its pin number This prepares support for sparse pin numbering. The function currently just performs and indexed lookup in the pins array. Signed-off-by: Laurent Pinchart Acked-by: Linus Walleij --- diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c index 9b5c0319eb77..667db99fb510 100644 --- a/drivers/pinctrl/sh-pfc/core.c +++ b/drivers/pinctrl/sh-pfc/core.c @@ -78,6 +78,11 @@ static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc, return (void __iomem *)address; } +struct sh_pfc_pin *sh_pfc_get_pin(struct sh_pfc *pfc, unsigned int pin) +{ + return &pfc->info->pins[pin]; +} + static int sh_pfc_enum_in_range(pinmux_enum_t enum_id, struct pinmux_range *r) { if (enum_id < r->begin) @@ -278,7 +283,7 @@ static void sh_pfc_setup_data_regs(struct sh_pfc *pfc) void sh_pfc_get_data_reg(struct sh_pfc *pfc, unsigned gpio, struct pinmux_data_reg **drp, int *bitp) { - struct sh_pfc_pin *gpiop = &pfc->info->pins[gpio]; + struct sh_pfc_pin *gpiop = sh_pfc_get_pin(pfc, gpio); int k, n; k = (gpiop->flags & PINMUX_FLAG_DREG) >> PINMUX_FLAG_DREG_SHIFT; diff --git a/drivers/pinctrl/sh-pfc/core.h b/drivers/pinctrl/sh-pfc/core.h index a3111b73fb94..6ea3d4f3d05e 100644 --- a/drivers/pinctrl/sh-pfc/core.h +++ b/drivers/pinctrl/sh-pfc/core.h @@ -49,6 +49,7 @@ void sh_pfc_write_bit(struct pinmux_data_reg *dr, unsigned long in_pos, unsigned long value); void sh_pfc_get_data_reg(struct sh_pfc *pfc, unsigned gpio, struct pinmux_data_reg **drp, int *bitp); +struct sh_pfc_pin *sh_pfc_get_pin(struct sh_pfc *pfc, unsigned int pin); int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type, int cfg_mode); diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c index db9af4e548a0..45090d8381a2 100644 --- a/drivers/pinctrl/sh-pfc/gpio.c +++ b/drivers/pinctrl/sh-pfc/gpio.c @@ -43,8 +43,9 @@ static struct sh_pfc *gpio_to_pfc(struct gpio_chip *gc) static int gpio_pin_request(struct gpio_chip *gc, unsigned offset) { struct sh_pfc *pfc = gpio_to_pfc(gc); + struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset); - if (pfc->info->pins[offset].enum_id == 0) + if (pin->enum_id == 0) return -EINVAL; return pinctrl_request_gpio(offset); diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c index a83f40070b3b..78bd277c01d9 100644 --- a/drivers/pinctrl/sh-pfc/pinctrl.c +++ b/drivers/pinctrl/sh-pfc/pinctrl.c @@ -119,14 +119,15 @@ static void sh_pfc_noop_disable(struct pinctrl_dev *pctldev, unsigned func, static int sh_pfc_reconfig_pin(struct sh_pfc *pfc, unsigned offset, int new_type) { - unsigned int mark = pfc->info->pins[offset].enum_id; + struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset); + unsigned int mark = pin->enum_id; unsigned long flags; int pinmux_type; int ret = -EINVAL; spin_lock_irqsave(&pfc->lock, flags); - pinmux_type = pfc->info->pins[offset].flags & PINMUX_FLAG_TYPE; + pinmux_type = pin->flags & PINMUX_FLAG_TYPE; /* * See if the present config needs to first be de-configured. @@ -156,8 +157,8 @@ static int sh_pfc_reconfig_pin(struct sh_pfc *pfc, unsigned offset, if (sh_pfc_config_mux(pfc, mark, new_type, GPIO_CFG_REQ) != 0) goto err; - pfc->info->pins[offset].flags &= ~PINMUX_FLAG_TYPE; - pfc->info->pins[offset].flags |= new_type; + pin->flags &= ~PINMUX_FLAG_TYPE; + pin->flags |= new_type; ret = 0; @@ -173,12 +174,13 @@ static int sh_pfc_gpio_request_enable(struct pinctrl_dev *pctldev, { struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); struct sh_pfc *pfc = pmx->pfc; + struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset); unsigned long flags; int ret, pinmux_type; spin_lock_irqsave(&pfc->lock, flags); - pinmux_type = pfc->info->pins[offset].flags & PINMUX_FLAG_TYPE; + pinmux_type = pin->flags & PINMUX_FLAG_TYPE; switch (pinmux_type) { case PINMUX_TYPE_GPIO: @@ -206,15 +208,15 @@ static void sh_pfc_gpio_disable_free(struct pinctrl_dev *pctldev, { struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); struct sh_pfc *pfc = pmx->pfc; + struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset); unsigned long flags; int pinmux_type; spin_lock_irqsave(&pfc->lock, flags); - pinmux_type = pfc->info->pins[offset].flags & PINMUX_FLAG_TYPE; + pinmux_type = pin->flags & PINMUX_FLAG_TYPE; - sh_pfc_config_mux(pfc, pfc->info->pins[offset].enum_id, pinmux_type, - GPIO_CFG_FREE); + sh_pfc_config_mux(pfc, pin->enum_id, pinmux_type, GPIO_CFG_FREE); spin_unlock_irqrestore(&pfc->lock, flags); } @@ -240,13 +242,14 @@ static const struct pinmux_ops sh_pfc_pinmux_ops = { .gpio_set_direction = sh_pfc_gpio_set_direction, }; -static int sh_pfc_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin, +static int sh_pfc_pinconf_get(struct pinctrl_dev *pctldev, unsigned _pin, unsigned long *config) { struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); struct sh_pfc *pfc = pmx->pfc; + struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, _pin); - *config = pfc->info->pins[pin].flags & PINMUX_FLAG_TYPE; + *config = pin->flags & PINMUX_FLAG_TYPE; return 0; }