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Wed, 02 Oct 2019 07:43:19 -0700 (PDT)
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From: Thierry Reding <thierry.reding@gmail.com>
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To: Lee Jones <lee.jones@linaro.org>
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Subject: [PATCH] mfd: max77620: Do not allocate IRQs upfront
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Date: Wed, 2 Oct 2019 16:43:18 +0200
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Message-Id: <20191002144318.140365-1-thierry.reding@gmail.com>
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Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
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From: Thierry Reding <treding@nvidia.com>
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12bb797 |
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12bb797 |
regmap_add_irq_chip() will try to allocate all of the IRQ descriptors
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upfront if passed a non-zero irq_base parameter. However, the intention
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is to allocate IRQ descriptors on an as-needed basis if possible. Pass 0
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instead of -1 to fix that use-case.
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Signed-off-by: Thierry Reding <treding@nvidia.com>
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---
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drivers/mfd/max77620.c | 5 ++---
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include/linux/mfd/max77620.h | 1 -
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2 files changed, 2 insertions(+), 4 deletions(-)
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diff --git a/drivers/mfd/max77620.c b/drivers/mfd/max77620.c
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index a851ff473a44..c7ed5c353553 100644
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--- a/drivers/mfd/max77620.c
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+++ b/drivers/mfd/max77620.c
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@@ -507,7 +507,6 @@ static int max77620_probe(struct i2c_client *client,
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i2c_set_clientdata(client, chip);
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chip->dev = &client->dev;
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- chip->irq_base = -1;
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chip->chip_irq = client->irq;
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chip->chip_id = (enum max77620_chip_id)id->driver_data;
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@@ -545,8 +544,8 @@ static int max77620_probe(struct i2c_client *client,
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max77620_top_irq_chip.irq_drv_data = chip;
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ret = devm_regmap_add_irq_chip(chip->dev, chip->rmap, client->irq,
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- IRQF_ONESHOT | IRQF_SHARED,
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- chip->irq_base, &max77620_top_irq_chip,
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+ IRQF_ONESHOT | IRQF_SHARED, 0,
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+ &max77620_top_irq_chip,
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&chip->top_irq_data);
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if (ret < 0) {
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dev_err(chip->dev, "Failed to add regmap irq: %d\n", ret);
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diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h
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index 12ba157cb83f..f552ef5b1100 100644
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--- a/include/linux/mfd/max77620.h
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+++ b/include/linux/mfd/max77620.h
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@@ -329,7 +329,6 @@ struct max77620_chip {
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struct regmap *rmap;
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int chip_irq;
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- int irq_base;
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/* chip id */
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enum max77620_chip_id chip_id;
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