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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-03 21:18:47 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-03 21:18:47 +0200 |
commit | 14b730723aac9cf3ba0a74e830491e9a43bfc80a (patch) | |
tree | 2d1591012ce62103a8c9fa0ebc4d002408f4d47f /drivers/i2c/muxes/i2c-mux-pca954x.c | |
parent | Merge tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/le... (diff) | |
parent | i2c: thunderx: Enable HWMON class probing (diff) | |
download | linux-14b730723aac9cf3ba0a74e830491e9a43bfc80a.tar.xz linux-14b730723aac9cf3ba0a74e830491e9a43bfc80a.zip |
Merge branch 'i2c/for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wilfram Sang:
"I2C has the following updates for you:
- an immutable cross-subsystem branch fixing PMIC access on Intel
Baytrail
- bigger driver updates to the designware, meson, exynos5 drivers
- new i2c_acpi_new_device() function to create devices from ACPI
- struct i2c_driver has now a flag 'disable_i2c_core_irq_mapping' to
allow custom IRQ mapping in case the default does not fit
- mux subsystem centralized error messages in its core
- new driver for ltc4306 i2c mux
- usual set of small updates"
* 'i2c/for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (44 commits)
i2c: thunderx: Enable HWMON class probing
i2c: rcar: clarify PM handling with more comments
i2c: rcar: fix resume by always initializing registers before transfer
i2c: tegra: fix spelling mistake: "contoller" -> "controller"
i2c: exynos5: use core helper to get driver data
i2c: exynos5: de-duplicate error logs on clock setup
i2c: exynos5: simplify clock frequency handling
i2c: exynos5: simplify timings calculation
i2c: designware-baytrail: fix potential null pointer dereference on dev
i2c: designware: Get selected speed mode sda-hold-time via ACPI
[media] cx231xx: stop double error reporting
i2c: core: Allow drivers to disable i2c-core irq mapping
i2c: core: Add new i2c_acpi_new_device helper function
i2c: core: Allow getting ACPI info by index
i2c: img-scb: use setup_timer
i2c: i2c-scmi: add a MS HID
i2c: mux: ltc4306: LTC4306 and LTC4305 I2C multiplexer/switch
dt-bindings: i2c: mux: ltc4306: Add dt-bindings for I2C multiplexer/switch
i2c: mux: reg: stop double error reporting
i2c: mux: pinctrl: stop double error reporting
...
Diffstat (limited to 'drivers/i2c/muxes/i2c-mux-pca954x.c')
-rw-r--r-- | drivers/i2c/muxes/i2c-mux-pca954x.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c index ad31d21da316..f1751c290af6 100644 --- a/drivers/i2c/muxes/i2c-mux-pca954x.c +++ b/drivers/i2c/muxes/i2c-mux-pca954x.c @@ -84,7 +84,7 @@ struct pca954x { struct irq_domain *irq; unsigned int irq_mask; - spinlock_t lock; + raw_spinlock_t lock; }; /* Provide specs for the PCA954x types we know about */ @@ -252,13 +252,13 @@ static void pca954x_irq_mask(struct irq_data *idata) unsigned int pos = idata->hwirq; unsigned long flags; - spin_lock_irqsave(&data->lock, flags); + raw_spin_lock_irqsave(&data->lock, flags); data->irq_mask &= ~BIT(pos); if (!data->irq_mask) disable_irq(data->client->irq); - spin_unlock_irqrestore(&data->lock, flags); + raw_spin_unlock_irqrestore(&data->lock, flags); } static void pca954x_irq_unmask(struct irq_data *idata) @@ -267,13 +267,13 @@ static void pca954x_irq_unmask(struct irq_data *idata) unsigned int pos = idata->hwirq; unsigned long flags; - spin_lock_irqsave(&data->lock, flags); + raw_spin_lock_irqsave(&data->lock, flags); if (!data->irq_mask) enable_irq(data->client->irq); data->irq_mask |= BIT(pos); - spin_unlock_irqrestore(&data->lock, flags); + raw_spin_unlock_irqrestore(&data->lock, flags); } static int pca954x_irq_set_type(struct irq_data *idata, unsigned int type) @@ -299,7 +299,7 @@ static int pca954x_irq_setup(struct i2c_mux_core *muxc) if (!data->chip->has_irq || client->irq <= 0) return 0; - spin_lock_init(&data->lock); + raw_spin_lock_init(&data->lock); data->irq = irq_domain_add_linear(client->dev.of_node, data->chip->nchans, @@ -413,13 +413,8 @@ static int pca954x_probe(struct i2c_client *client, idle_disconnect_dt) << num; ret = i2c_mux_add_adapter(muxc, force, num, class); - - if (ret) { - dev_err(&client->dev, - "failed to register multiplexed adapter" - " %d as bus %d\n", num, force); + if (ret) goto fail_del_adapters; - } } dev_info(&client->dev, |