From: Linus Walleij <linus.walleij@stericsson.com> To: Grant Likely <grant.likely@secretlab.ca>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Cc: Lee Jones <lee.jones@linaro.org>, Rabin Vincent <rabin.vincent@stericsson.com>, Linus Walleij <linus.walleij@linaro.org> Subject: [PATCH 3/4] gpio/nomadik: show all pins in debug Date: Tue, 24 May 2011 23:07:09 +0200 [thread overview] Message-ID: <1306271229-29011-1-git-send-email-linus.walleij@stericsson.com> (raw) From: Rabin Vincent <rabin.vincent@stericsson.com> Useful to check the status of the runtime pin muxing. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> [Squashed, modified to use chip-internal IRQ trigger state] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpio-nomadik.c | 31 +++++++++++++++++++++++++++---- 1 files changed, 27 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpio-nomadik.c b/drivers/gpio/gpio-nomadik.c index 307b813..3802047 100644 --- a/drivers/gpio/gpio-nomadik.c +++ b/drivers/gpio/gpio-nomadik.c @@ -811,20 +811,43 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) bool pull; u32 bit = 1 << i; - if (!label) - continue; - is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit; pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit); mode = nmk_gpio_get_mode(gpio); seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s", - gpio, label, + gpio, label ?: "(none)", is_out ? "out" : "in ", chip->get ? (chip->get(chip, i) ? "hi" : "lo") : "? ", (mode < 0) ? "unknown" : modes[mode], pull ? "pull" : "none"); + + if (label && !is_out) { + int irq = gpio_to_irq(gpio); + struct irq_desc *desc = irq_to_desc(irq); + + /* This races with request_irq(), set_irq_type(), + * and set_irq_wake() ... but those are "rare". + */ + if (irq >= 0 && desc->action) { + char *trigger; + u32 bitmask = nmk_gpio_get_bitmask(gpio); + + if (nmk_chip->edge_rising & bitmask) + trigger = "edge-rising"; + else if (nmk_chip->edge_falling & bitmask) + trigger = "edge-falling"; + else + trigger = "edge-undefined"; + + seq_printf(s, " irq-%d %s%s", + irq, trigger, + irqd_is_wakeup_set(&desc->irq_data) + ? " wakeup" : ""); + } + } + seq_printf(s, "\n"); } } -- 1.7.3.2
WARNING: multiple messages have this Message-ID (diff)
From: linus.walleij@stericsson.com (Linus Walleij) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/4] gpio/nomadik: show all pins in debug Date: Tue, 24 May 2011 23:07:09 +0200 [thread overview] Message-ID: <1306271229-29011-1-git-send-email-linus.walleij@stericsson.com> (raw) From: Rabin Vincent <rabin.vincent@stericsson.com> Useful to check the status of the runtime pin muxing. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> [Squashed, modified to use chip-internal IRQ trigger state] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpio-nomadik.c | 31 +++++++++++++++++++++++++++---- 1 files changed, 27 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpio-nomadik.c b/drivers/gpio/gpio-nomadik.c index 307b813..3802047 100644 --- a/drivers/gpio/gpio-nomadik.c +++ b/drivers/gpio/gpio-nomadik.c @@ -811,20 +811,43 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) bool pull; u32 bit = 1 << i; - if (!label) - continue; - is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit; pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit); mode = nmk_gpio_get_mode(gpio); seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s", - gpio, label, + gpio, label ?: "(none)", is_out ? "out" : "in ", chip->get ? (chip->get(chip, i) ? "hi" : "lo") : "? ", (mode < 0) ? "unknown" : modes[mode], pull ? "pull" : "none"); + + if (label && !is_out) { + int irq = gpio_to_irq(gpio); + struct irq_desc *desc = irq_to_desc(irq); + + /* This races with request_irq(), set_irq_type(), + * and set_irq_wake() ... but those are "rare". + */ + if (irq >= 0 && desc->action) { + char *trigger; + u32 bitmask = nmk_gpio_get_bitmask(gpio); + + if (nmk_chip->edge_rising & bitmask) + trigger = "edge-rising"; + else if (nmk_chip->edge_falling & bitmask) + trigger = "edge-falling"; + else + trigger = "edge-undefined"; + + seq_printf(s, " irq-%d %s%s", + irq, trigger, + irqd_is_wakeup_set(&desc->irq_data) + ? " wakeup" : ""); + } + } + seq_printf(s, "\n"); } } -- 1.7.3.2
next reply other threads:[~2011-05-24 21:07 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-05-24 21:07 Linus Walleij [this message] 2011-05-24 21:07 ` [PATCH 3/4] gpio/nomadik: show all pins in debug Linus Walleij -- strict thread matches above, loose matches on Subject: below -- 2011-05-20 22:05 Linus Walleij 2011-05-20 22:05 ` Linus Walleij
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