On Wed, Jan 16, 2019 at 10:32 AM Thomas Petazzoni <thomas.petazz...@bootlin.com> wrote:
> When a system has two PCA953x GPIO expanders, the kernel complains with: > > gpio gpiochip2: (0-0021): detected irqchip that is shared with multiple > gpiochips: please fix the driver. > > Indeed, there is a single instance of "struct irq_chip" that gets > re-used for both PCA953x instance. This commit moves the "struct > irq_chip" to be part of the "struct pca953x_chip", so that we have one > "struct irq_chip" per PCA953X instance. > > As part of this, the name of the irq_chip is also made different on a > per-instance basis, now using the dev_name() of the I2C device. This > changes what is visible in /proc/interrupts. > > Before: > > 47: 0 0 pca953x 10 Edge e0100000.sdhci cd > 48: 0 0 pca953x 6 Edge e0101000.sdhci cd > > After: > > 47: 0 0 0-0020 10 Edge e0100000.sdhci cd > 48: 2 0 0-0020 6 Edge e0101000.sdhci cd > > Signed-off-by: Thomas Petazzoni <thomas.petazz...@bootlin.com> Patch applied. Yours, Linus Walleij
