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From: Thierry Reding <thierry.reding@gmail.com>
To: Lee Jones <lee.jones@linaro.org>
Subject: [PATCH] mfd: max77620: Do not allocate IRQs upfront
Date: Wed, 2 Oct 2019 16:43:18 +0200
Message-Id: <20191002144318.140365-1-thierry.reding@gmail.com>
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From: Thierry Reding <treding@nvidia.com>
regmap_add_irq_chip() will try to allocate all of the IRQ descriptors
upfront if passed a non-zero irq_base parameter. However, the intention
is to allocate IRQ descriptors on an as-needed basis if possible. Pass 0
instead of -1 to fix that use-case.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/mfd/max77620.c | 5 ++---
include/linux/mfd/max77620.h | 1 -
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/mfd/max77620.c b/drivers/mfd/max77620.c
index a851ff473a44..c7ed5c353553 100644
--- a/drivers/mfd/max77620.c
+++ b/drivers/mfd/max77620.c
@@ -507,7 +507,6 @@ static int max77620_probe(struct i2c_client *client,
i2c_set_clientdata(client, chip);
chip->dev = &client->dev;
- chip->irq_base = -1;
chip->chip_irq = client->irq;
chip->chip_id = (enum max77620_chip_id)id->driver_data;
@@ -545,8 +544,8 @@ static int max77620_probe(struct i2c_client *client,
max77620_top_irq_chip.irq_drv_data = chip;
ret = devm_regmap_add_irq_chip(chip->dev, chip->rmap, client->irq,
- IRQF_ONESHOT | IRQF_SHARED,
- chip->irq_base, &max77620_top_irq_chip,
+ IRQF_ONESHOT | IRQF_SHARED, 0,
+ &max77620_top_irq_chip,
&chip->top_irq_data);
if (ret < 0) {
dev_err(chip->dev, "Failed to add regmap irq: %d\n", ret);
diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h
index 12ba157cb83f..f552ef5b1100 100644
--- a/include/linux/mfd/max77620.h
+++ b/include/linux/mfd/max77620.h
@@ -329,7 +329,6 @@ struct max77620_chip {
struct regmap *rmap;
int chip_irq;
- int irq_base;
/* chip id */
enum max77620_chip_id chip_id;