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authorHauke Mehrtens <hauke@hauke-m.de>2014-02-04 22:53:52 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2014-02-04 22:53:52 +0000
commite0d4a548fb099ec45ccb566c9bf5a90c224a121b (patch)
tree767272dc7ca10310a13fbb85be65bf74cb068438 /target/linux/brcm47xx
parent84bf8e1f1a2a72411017518625dea9f8c5db8e35 (diff)
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kernel: bcma: update bcma to a version from kernel 3.14-rc1
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 39463
Diffstat (limited to 'target/linux/brcm47xx')
-rw-r--r--target/linux/brcm47xx/patches-3.10/100-bcma-gpio-add-own-IRQ-domain.patch222
-rw-r--r--target/linux/brcm47xx/patches-3.10/101-bcma-gpio-fix-irq-handling.patch20
2 files changed, 0 insertions, 242 deletions
diff --git a/target/linux/brcm47xx/patches-3.10/100-bcma-gpio-add-own-IRQ-domain.patch b/target/linux/brcm47xx/patches-3.10/100-bcma-gpio-add-own-IRQ-domain.patch
deleted file mode 100644
index b6b370dcad..0000000000
--- a/target/linux/brcm47xx/patches-3.10/100-bcma-gpio-add-own-IRQ-domain.patch
+++ /dev/null
@@ -1,222 +0,0 @@
-From 37dc57c2400b2998868a5c103756f36b8dc53a17 Mon Sep 17 00:00:00 2001
-From: Rafa? Mi?ecki <zajec5@gmail.com>
-Date: Thu, 12 Dec 2013 13:46:03 +0100
-Subject: [PATCH 088/110] bcma: gpio: add own IRQ domain
-
-Input GPIO changes can generate interrupts, but we need kind of ACK for
-them by changing IRQ polarity. This is required to stop hardware from
-keep generating interrupts and generate another one on the next GPIO
-state change.
-This code allows using GPIOs with standard interrupts and add for
-example GPIO buttons support.
-
-Signed-off-by: Rafa? Mi?ecki <zajec5@gmail.com>
-Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
-Acked-by: John Crispin <blogic@openwrt.org>
-Patchwork: http://patchwork.linux-mips.org/patch/6216/
----
- drivers/bcma/Kconfig | 1 +
- drivers/bcma/driver_gpio.c | 135 ++++++++++++++++++++++++++-
- include/linux/bcma/bcma_driver_chipcommon.h | 1 +
- 3 files changed, 134 insertions(+), 3 deletions(-)
-
---- a/drivers/bcma/Kconfig
-+++ b/drivers/bcma/Kconfig
-@@ -76,6 +76,7 @@ config BCMA_DRIVER_GMAC_CMN
- config BCMA_DRIVER_GPIO
- bool "BCMA GPIO driver"
- depends on BCMA && GPIOLIB
-+ select IRQ_DOMAIN if BCMA_HOST_SOC
- help
- Driver to provide access to the GPIO pins of the bcma bus.
-
---- a/drivers/bcma/driver_gpio.c
-+++ b/drivers/bcma/driver_gpio.c
-@@ -9,6 +9,9 @@
- */
-
- #include <linux/gpio.h>
-+#include <linux/irq.h>
-+#include <linux/interrupt.h>
-+#include <linux/irqdomain.h>
- #include <linux/export.h>
- #include <linux/bcma/bcma.h>
-
-@@ -73,19 +76,133 @@ static void bcma_gpio_free(struct gpio_c
- bcma_chipco_gpio_pullup(cc, 1 << gpio, 0);
- }
-
-+#if IS_BUILTIN(CONFIG_BCMA_HOST_SOC)
- static int bcma_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
- {
- struct bcma_drv_cc *cc = bcma_gpio_get_cc(chip);
-
- if (cc->core->bus->hosttype == BCMA_HOSTTYPE_SOC)
-- return bcma_core_irq(cc->core);
-+ return irq_find_mapping(cc->irq_domain, gpio);
- else
- return -EINVAL;
- }
-
-+static void bcma_gpio_irq_unmask(struct irq_data *d)
-+{
-+ struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d);
-+ int gpio = irqd_to_hwirq(d);
-+
-+ bcma_chipco_gpio_intmask(cc, BIT(gpio), BIT(gpio));
-+}
-+
-+static void bcma_gpio_irq_mask(struct irq_data *d)
-+{
-+ struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d);
-+ int gpio = irqd_to_hwirq(d);
-+
-+ bcma_chipco_gpio_intmask(cc, BIT(gpio), 0);
-+}
-+
-+static struct irq_chip bcma_gpio_irq_chip = {
-+ .name = "BCMA-GPIO",
-+ .irq_mask = bcma_gpio_irq_mask,
-+ .irq_unmask = bcma_gpio_irq_unmask,
-+};
-+
-+static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id)
-+{
-+ struct bcma_drv_cc *cc = dev_id;
-+ u32 val = bcma_cc_read32(cc, BCMA_CC_GPIOIN);
-+ u32 mask = bcma_cc_read32(cc, BCMA_CC_GPIOIRQ);
-+ u32 pol = bcma_cc_read32(cc, BCMA_CC_GPIOPOL);
-+ u32 irqs = (val ^ pol) & mask;
-+ int gpio;
-+
-+ if (!irqs)
-+ return IRQ_NONE;
-+
-+ for_each_set_bit(gpio, (unsigned long *)&irqs, cc->gpio.ngpio)
-+ generic_handle_irq(bcma_gpio_to_irq(&cc->gpio, gpio));
-+ bcma_chipco_gpio_polarity(cc, irqs, val & irqs);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static int bcma_gpio_irq_domain_init(struct bcma_drv_cc *cc)
-+{
-+ struct gpio_chip *chip = &cc->gpio;
-+ int gpio, hwirq, err;
-+
-+ if (cc->core->bus->hosttype != BCMA_HOSTTYPE_SOC)
-+ return 0;
-+
-+ cc->irq_domain = irq_domain_add_linear(NULL, chip->ngpio,
-+ &irq_domain_simple_ops, cc);
-+ if (!cc->irq_domain) {
-+ err = -ENODEV;
-+ goto err_irq_domain;
-+ }
-+ for (gpio = 0; gpio < chip->ngpio; gpio++) {
-+ int irq = irq_create_mapping(cc->irq_domain, gpio);
-+
-+ irq_set_chip_data(irq, cc);
-+ irq_set_chip_and_handler(irq, &bcma_gpio_irq_chip,
-+ handle_simple_irq);
-+ }
-+
-+ hwirq = bcma_core_irq(cc->core);
-+ err = request_irq(hwirq, bcma_gpio_irq_handler, IRQF_SHARED, "gpio",
-+ cc);
-+ if (err)
-+ goto err_req_irq;
-+
-+ bcma_cc_set32(cc, BCMA_CC_IRQMASK, BCMA_CC_IRQ_GPIO);
-+
-+ return 0;
-+
-+err_req_irq:
-+ for (gpio = 0; gpio < chip->ngpio; gpio++) {
-+ int irq = irq_find_mapping(cc->irq_domain, gpio);
-+
-+ irq_dispose_mapping(irq);
-+ }
-+ irq_domain_remove(cc->irq_domain);
-+err_irq_domain:
-+ return err;
-+}
-+
-+static void bcma_gpio_irq_domain_exit(struct bcma_drv_cc *cc)
-+{
-+ struct gpio_chip *chip = &cc->gpio;
-+ int gpio;
-+
-+ if (cc->core->bus->hosttype != BCMA_HOSTTYPE_SOC)
-+ return;
-+
-+ bcma_cc_mask32(cc, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO);
-+ free_irq(bcma_core_irq(cc->core), cc);
-+ for (gpio = 0; gpio < chip->ngpio; gpio++) {
-+ int irq = irq_find_mapping(cc->irq_domain, gpio);
-+
-+ irq_dispose_mapping(irq);
-+ }
-+ irq_domain_remove(cc->irq_domain);
-+}
-+#else
-+static int bcma_gpio_irq_domain_init(struct bcma_drv_cc *cc)
-+{
-+ return 0;
-+}
-+
-+static void bcma_gpio_irq_domain_exit(struct bcma_drv_cc *cc)
-+{
-+}
-+#endif
-+
- int bcma_gpio_init(struct bcma_drv_cc *cc)
- {
- struct gpio_chip *chip = &cc->gpio;
-+ int err;
-
- chip->label = "bcma_gpio";
- chip->owner = THIS_MODULE;
-@@ -95,7 +212,8 @@ int bcma_gpio_init(struct bcma_drv_cc *c
- chip->set = bcma_gpio_set_value;
- chip->direction_input = bcma_gpio_direction_input;
- chip->direction_output = bcma_gpio_direction_output;
-- chip->to_irq = bcma_gpio_to_irq;
-+ if (IS_BUILTIN(CONFIG_BCMA_HOST_SOC))
-+ chip->to_irq = bcma_gpio_to_irq;
- chip->ngpio = 16;
- /* There is just one SoC in one device and its GPIO addresses should be
- * deterministic to address them more easily. The other buses could get
-@@ -105,10 +223,21 @@ int bcma_gpio_init(struct bcma_drv_cc *c
- else
- chip->base = -1;
-
-- return gpiochip_add(chip);
-+ err = bcma_gpio_irq_domain_init(cc);
-+ if (err)
-+ return err;
-+
-+ err = gpiochip_add(chip);
-+ if (err) {
-+ bcma_gpio_irq_domain_exit(cc);
-+ return err;
-+ }
-+
-+ return 0;
- }
-
- int bcma_gpio_unregister(struct bcma_drv_cc *cc)
- {
-+ bcma_gpio_irq_domain_exit(cc);
- return gpiochip_remove(&cc->gpio);
- }
---- a/include/linux/bcma/bcma_driver_chipcommon.h
-+++ b/include/linux/bcma/bcma_driver_chipcommon.h
-@@ -640,6 +640,7 @@ struct bcma_drv_cc {
- spinlock_t gpio_lock;
- #ifdef CONFIG_BCMA_DRIVER_GPIO
- struct gpio_chip gpio;
-+ struct irq_domain *irq_domain;
- #endif
- };
-
diff --git a/target/linux/brcm47xx/patches-3.10/101-bcma-gpio-fix-irq-handling.patch b/target/linux/brcm47xx/patches-3.10/101-bcma-gpio-fix-irq-handling.patch
deleted file mode 100644
index 388eefa1f8..0000000000
--- a/target/linux/brcm47xx/patches-3.10/101-bcma-gpio-fix-irq-handling.patch
+++ /dev/null
@@ -1,20 +0,0 @@
---- a/drivers/bcma/driver_gpio.c
-+++ b/drivers/bcma/driver_gpio.c
-@@ -91,7 +91,9 @@ static void bcma_gpio_irq_unmask(struct
- {
- struct bcma_drv_cc *cc = irq_data_get_irq_chip_data(d);
- int gpio = irqd_to_hwirq(d);
-+ u32 val = bcma_chipco_gpio_in(cc, BIT(gpio));
-
-+ bcma_chipco_gpio_polarity(cc, BIT(gpio), val);
- bcma_chipco_gpio_intmask(cc, BIT(gpio), BIT(gpio));
- }
-
-@@ -156,6 +158,7 @@ static int bcma_gpio_irq_domain_init(str
- if (err)
- goto err_req_irq;
-
-+ bcma_chipco_gpio_intmask(cc, ~0, 0);
- bcma_cc_set32(cc, BCMA_CC_IRQMASK, BCMA_CC_IRQ_GPIO);
-
- return 0;