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i2c-for-6.11-rc4

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I2C core needs to fix a fix from rc3 by replacing IS_ENABLED() with
 IS_REACHABLE().
 
 For host drivers, there are two fixes in this update:
 
 Tegra I2C Controller: Addresses a potential double-locking issue
 during probe. ACPI devices are not IRQ-safe when invoking runtime
 suspend and resume functions, so the irq_safe flag should not be
 set.
 
 Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
 of the runtime_resume() function, which was missed in the
 previous release.
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Merge tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "I2C core fix replacing IS_ENABLED() with IS_REACHABLE()

  For host drivers, there are two fixes:

   - Tegra I2C Controller: Addresses a potential double-locking issue
     during probe. ACPI devices are not IRQ-safe when invoking runtime
     suspend and resume functions, so the irq_safe flag should not be
     set.

   - Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
     of the runtime_resume() function, which was missed in the previous
     release"

* tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: tegra: Do not mark ACPI devices as irq safe
  i2c: Use IS_REACHABLE() for substituting empty ACPI functions
  i2c: qcom-geni: Add missing geni_icc_disable in geni_i2c_runtime_resume
This commit is contained in:
Linus Torvalds 2024-08-17 16:23:05 -07:00
commit 98a1b2d71f
3 changed files with 6 additions and 4 deletions
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4
drivers/i2c/busses/i2c-qcom-geni.c
View file

@ -986,8 +986,10 @@ static int __maybe_unused geni_i2c_runtime_resume(struct device *dev)
return ret;
ret = clk_prepare_enable(gi2c->core_clk);
if (ret)
if (ret) {
geni_icc_disable(&gi2c->se);
return ret;
}
ret = geni_se_resources_on(&gi2c->se);
if (ret) {

4
drivers/i2c/busses/i2c-tegra.c
View file

@ -1802,9 +1802,9 @@ static int tegra_i2c_probe(struct platform_device *pdev)
* domain.
*
* VI I2C device shouldn't be marked as IRQ-safe because VI I2C won't
* be used for atomic transfers.
* be used for atomic transfers. ACPI device is not IRQ safe also.
*/
if (!IS_VI(i2c_dev))
if (!IS_VI(i2c_dev) && !has_acpi_companion(i2c_dev->dev))
pm_runtime_irq_safe(i2c_dev->dev);
pm_runtime_enable(i2c_dev->dev);

2
include/linux/i2c.h
View file

@ -1066,7 +1066,7 @@ static inline int of_i2c_get_board_info(struct device *dev,
struct acpi_resource;
struct acpi_resource_i2c_serialbus;
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_I2C)
#if IS_REACHABLE(CONFIG_ACPI) && IS_REACHABLE(CONFIG_I2C)
bool i2c_acpi_get_i2c_resource(struct acpi_resource *ares,
struct acpi_resource_i2c_serialbus **i2c);
int i2c_acpi_client_count(struct acpi_device *adev);