5.4-stable review patch. If anyone has any objections, please let me know.
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From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit 0350d783ab888cb1cb48ced36cc28b372723f1a4 ]
While design wise the idea of converting the driver to use the hierarchy of the IRQ chips is correct, the implementation has (inherited) flaws. This was unveiled when platform_get_irq() had started WARN() on IRQ 0 that is supposed to be a Linux IRQ number (also known as vIRQ).
Rework the driver to respect IRQ domain when creating each MFD device separately, as the domain is not the same for all of them.
Fixes: 57129044f504 ("mfd: intel_soc_pmic_bxtwc: Use chained IRQs for second level IRQ chips") Tested-by: Zhang Ning zhangn1985@outlook.com Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Link: https://lore.kernel.org/r/20241005193029.1929139-4-andriy.shevchenko@linux.i... Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/intel_soc_pmic_bxtwc.c | 54 +++++++++++++++++------------- 1 file changed, 30 insertions(+), 24 deletions(-)
diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c index ba441fd9c4ed4..9f44f793ca456 100644 --- a/drivers/mfd/intel_soc_pmic_bxtwc.c +++ b/drivers/mfd/intel_soc_pmic_bxtwc.c @@ -226,21 +226,11 @@ static struct resource tmu_resources[] = { };
static struct mfd_cell bxt_wc_dev[] = { - { - .name = "bxt_wcove_gpadc", - .num_resources = ARRAY_SIZE(adc_resources), - .resources = adc_resources, - }, { .name = "bxt_wcove_thermal", .num_resources = ARRAY_SIZE(thermal_resources), .resources = thermal_resources, }, - { - .name = "bxt_wcove_bcu", - .num_resources = ARRAY_SIZE(bcu_resources), - .resources = bcu_resources, - }, { .name = "bxt_wcove_gpio", .num_resources = ARRAY_SIZE(gpio_resources), @@ -259,6 +249,22 @@ static const struct mfd_cell bxt_wc_tmu_dev[] = { }, };
+static const struct mfd_cell bxt_wc_bcu_dev[] = { + { + .name = "bxt_wcove_bcu", + .num_resources = ARRAY_SIZE(bcu_resources), + .resources = bcu_resources, + }, +}; + +static const struct mfd_cell bxt_wc_adc_dev[] = { + { + .name = "bxt_wcove_gpadc", + .num_resources = ARRAY_SIZE(adc_resources), + .resources = adc_resources, + }, +}; + static struct mfd_cell bxt_wc_chgr_dev[] = { { .name = "bxt_wcove_usbc", @@ -504,23 +510,23 @@ static int bxtwc_probe(struct platform_device *pdev) if (ret) return dev_err_probe(dev, ret, "Failed to add PWRBTN IRQ chip\n");
- /* Add chained IRQ handler for BCU IRQs */ - ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data, - BXTWC_BCU_LVL1_IRQ, - IRQF_ONESHOT, - &bxtwc_regmap_irq_chip_bcu, - &pmic->irq_chip_data_bcu); + ret = bxtwc_add_chained_devices(pmic, bxt_wc_bcu_dev, ARRAY_SIZE(bxt_wc_bcu_dev), + pmic->irq_chip_data, + BXTWC_BCU_LVL1_IRQ, + IRQF_ONESHOT, + &bxtwc_regmap_irq_chip_bcu, + &pmic->irq_chip_data_bcu); if (ret) - return dev_err_probe(dev, ret, "Failed to add BUC IRQ chip\n"); + return ret;
- /* Add chained IRQ handler for ADC IRQs */ - ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data, - BXTWC_ADC_LVL1_IRQ, - IRQF_ONESHOT, - &bxtwc_regmap_irq_chip_adc, - &pmic->irq_chip_data_adc); + ret = bxtwc_add_chained_devices(pmic, bxt_wc_adc_dev, ARRAY_SIZE(bxt_wc_adc_dev), + pmic->irq_chip_data, + BXTWC_ADC_LVL1_IRQ, + IRQF_ONESHOT, + &bxtwc_regmap_irq_chip_adc, + &pmic->irq_chip_data_adc); if (ret) - return dev_err_probe(dev, ret, "Failed to add ADC IRQ chip\n"); + return ret;
ret = bxtwc_add_chained_devices(pmic, bxt_wc_chgr_dev, ARRAY_SIZE(bxt_wc_chgr_dev), pmic->irq_chip_data,