2016-11-22 15:27:32

by Charles Keepax

Subject: [PATCH 1/2] mfd: arizona: Add defines for IRQs on the main Arizona IRQ domain

Signed-off-by: Charles Keepax <[email protected]>
---
drivers/mfd/arizona-irq.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 724fa54..88729cf 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -26,6 +26,9 @@

#include "arizona.h"

+#define ARIZONA_AOD_IRQ_INDEX 0
+#define ARIZONA_MAIN_IRQ_INDEX 1
+
static int arizona_map_irq(struct arizona *arizona, int irq)
{
int ret;
@@ -319,7 +322,8 @@ int arizona_irq_init(struct arizona *arizona)

if (aod) {
ret = regmap_add_irq_chip(arizona->regmap,
- irq_create_mapping(arizona->virq, 0),
+ irq_create_mapping(arizona->virq,
+ ARIZONA_AOD_IRQ_INDEX),
IRQF_ONESHOT, 0, aod,
&arizona->aod_irq_chip);
if (ret != 0) {
@@ -330,7 +334,8 @@ int arizona_irq_init(struct arizona *arizona)
}

ret = regmap_add_irq_chip(arizona->regmap,
- irq_create_mapping(arizona->virq, 1),
+ irq_create_mapping(arizona->virq,
+ ARIZONA_MAIN_IRQ_INDEX),
IRQF_ONESHOT, 0, irq,
&arizona->irq_chip);
if (ret != 0) {
@@ -396,10 +401,12 @@ int arizona_irq_init(struct arizona *arizona)
err_boot_done:
free_irq(arizona->irq, arizona);
err_main_irq:
- regmap_del_irq_chip(irq_find_mapping(arizona->virq, 1),
+ regmap_del_irq_chip(irq_find_mapping(arizona->virq,
+ ARIZONA_MAIN_IRQ_INDEX),
arizona->irq_chip);
err_aod:
- regmap_del_irq_chip(irq_find_mapping(arizona->virq, 0),
+ regmap_del_irq_chip(irq_find_mapping(arizona->virq,
+ ARIZONA_AOD_IRQ_INDEX),
arizona->aod_irq_chip);
err:
return ret;
@@ -411,9 +418,11 @@ int arizona_irq_exit(struct arizona *arizona)
arizona_free_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR, arizona);
arizona_free_irq(arizona, ARIZONA_IRQ_BOOT_DONE, arizona);

- regmap_del_irq_chip(irq_find_mapping(arizona->virq, 1),
+ regmap_del_irq_chip(irq_find_mapping(arizona->virq,
+ ARIZONA_MAIN_IRQ_INDEX),
arizona->irq_chip);
- regmap_del_irq_chip(irq_find_mapping(arizona->virq, 0),
+ regmap_del_irq_chip(irq_find_mapping(arizona->virq,
+ ARIZONA_AOD_IRQ_INDEX),
arizona->aod_irq_chip);
free_irq(arizona->irq, arizona);

--
2.1.4

2016-11-22 15:27:33

by Charles Keepax

Subject: [PATCH v3 2/2] mfd: arizona: Correctly clean up after IRQs

Currently we leak a lot of things when tearing down the IRQs this patch
fixes this cleaning up both the IRQ mappings and the IRQ domain itself.

Signed-off-by: Charles Keepax <[email protected]>
---

Changes since v2:
- Updated to use the defines added in the previous patch

Thanks,
Charles

drivers/mfd/arizona-irq.c | 59 ++++++++++++++++++++++++++++++++---------------
1 file changed, 41 insertions(+), 18 deletions(-)

diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 88729cf..09cf369 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -210,6 +210,7 @@ int arizona_irq_init(struct arizona *arizona)
int ret;
const struct regmap_irq_chip *aod, *irq;
struct irq_data *irq_data;
+ unsigned int virq;

arizona->ctrlif_error = true;

@@ -321,26 +322,34 @@ int arizona_irq_init(struct arizona *arizona)
}

if (aod) {
- ret = regmap_add_irq_chip(arizona->regmap,
- irq_create_mapping(arizona->virq,
- ARIZONA_AOD_IRQ_INDEX),
- IRQF_ONESHOT, 0, aod,
- &arizona->aod_irq_chip);
+ virq = irq_create_mapping(arizona->virq, ARIZONA_AOD_IRQ_INDEX);
+ if (!virq) {
+ dev_err(arizona->dev, "Failed to map AOD IRQs\n");
+ ret = -EINVAL;
+ goto err_domain;
+ }
+
+ ret = regmap_add_irq_chip(arizona->regmap, virq, IRQF_ONESHOT,
+ 0, aod, &arizona->aod_irq_chip);
if (ret != 0) {
dev_err(arizona->dev,
"Failed to add AOD IRQs: %d\n", ret);
- goto err;
+ goto err_map_aod;
}
}

- ret = regmap_add_irq_chip(arizona->regmap,
- irq_create_mapping(arizona->virq,
- ARIZONA_MAIN_IRQ_INDEX),
- IRQF_ONESHOT, 0, irq,
- &arizona->irq_chip);
+ virq = irq_create_mapping(arizona->virq, ARIZONA_MAIN_IRQ_INDEX);
+ if (!virq) {
+ dev_err(arizona->dev, "Failed to map main IRQs\n");
+ ret = -EINVAL;
+ goto err_aod;
+ }
+
+ ret = regmap_add_irq_chip(arizona->regmap, virq, IRQF_ONESHOT,
+ 0, irq, &arizona->irq_chip);
if (ret != 0) {
dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret);
- goto err_aod;
+ goto err_map_main_irq;
}

/* Used to emulate edge trigger and to work around broken pinmux */
@@ -404,26 +413,40 @@ int arizona_irq_init(struct arizona *arizona)
regmap_del_irq_chip(irq_find_mapping(arizona->virq,
ARIZONA_MAIN_IRQ_INDEX),
arizona->irq_chip);
+err_map_main_irq:
+ irq_dispose_mapping(irq_find_mapping(arizona->virq,
+ ARIZONA_MAIN_IRQ_INDEX));
err_aod:
regmap_del_irq_chip(irq_find_mapping(arizona->virq,
ARIZONA_AOD_IRQ_INDEX),
arizona->aod_irq_chip);
+err_map_aod:
+ irq_dispose_mapping(irq_find_mapping(arizona->virq,
+ ARIZONA_AOD_IRQ_INDEX));
+err_domain:
+ irq_domain_remove(arizona->virq);
err:
return ret;
}

int arizona_irq_exit(struct arizona *arizona)
{
+ unsigned int virq;
+
if (arizona->ctrlif_error)
arizona_free_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR, arizona);
arizona_free_irq(arizona, ARIZONA_IRQ_BOOT_DONE, arizona);

- regmap_del_irq_chip(irq_find_mapping(arizona->virq,
- ARIZONA_MAIN_IRQ_INDEX),
- arizona->irq_chip);
- regmap_del_irq_chip(irq_find_mapping(arizona->virq,
- ARIZONA_AOD_IRQ_INDEX),
- arizona->aod_irq_chip);
+ virq = irq_find_mapping(arizona->virq, ARIZONA_MAIN_IRQ_INDEX);
+ regmap_del_irq_chip(virq, arizona->irq_chip);
+ irq_dispose_mapping(virq);
+
+ virq = irq_find_mapping(arizona->virq, ARIZONA_AOD_IRQ_INDEX);
+ regmap_del_irq_chip(virq, arizona->aod_irq_chip);
+ irq_dispose_mapping(virq);
+
+ irq_domain_remove(arizona->virq);
+
free_irq(arizona->irq, arizona);

return 0;
--
2.1.4