From: Christoph Niedermaier Date: Thu, 9 Mar 2023 09:22:53 +0000 (+0100) Subject: mfd: da9062: Remove IRQ requirement X-Git-Tag: v6.6.7~2924^2~54 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c923d5001ba054df10ed3441d24f8f2c01db7e00;p=platform%2Fkernel%2Flinux-starfive.git mfd: da9062: Remove IRQ requirement This patch removes the requirement for an IRQ, because for the core functionality IRQ isn't needed. So this makes the DA9061/62 chip usable for designs which haven't connected the IRQ pin. Signed-off-by: Christoph Niedermaier Acked-by: Adam Ward Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230309092254.56279-2-cniedermaier@dh-electronics.com --- diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c index 9418c58..d073d5f 100644 --- a/drivers/mfd/da9062-core.c +++ b/drivers/mfd/da9062-core.c @@ -181,7 +181,7 @@ static const struct resource da9061_onkey_resources[] = { DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"), }; -static const struct mfd_cell da9061_devs[] = { +static const struct mfd_cell da9061_devs_irq[] = { MFD_CELL_OF("da9061-core", da9061_core_resources, NULL, 0, 0, NULL), MFD_CELL_OF("da9062-regulators", da9061_regulators_resources, NULL, 0, 0, @@ -194,6 +194,14 @@ static const struct mfd_cell da9061_devs[] = { "dlg,da9061-onkey"), }; +static const struct mfd_cell da9061_devs_noirq[] = { + MFD_CELL_OF("da9061-core", NULL, NULL, 0, 0, NULL), + MFD_CELL_OF("da9062-regulators", NULL, NULL, 0, 0, NULL), + MFD_CELL_OF("da9061-watchdog", NULL, NULL, 0, 0, "dlg,da9061-watchdog"), + MFD_CELL_OF("da9061-thermal", NULL, NULL, 0, 0, "dlg,da9061-thermal"), + MFD_CELL_OF("da9061-onkey", NULL, NULL, 0, 0, "dlg,da9061-onkey"), +}; + static const struct resource da9062_core_resources[] = { DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ), }; @@ -227,7 +235,7 @@ static const struct resource da9062_gpio_resources[] = { DEFINE_RES_NAMED(DA9062_IRQ_GPI4, 1, "GPI4", IORESOURCE_IRQ), }; -static const struct mfd_cell da9062_devs[] = { +static const struct mfd_cell da9062_devs_irq[] = { MFD_CELL_OF("da9062-core", da9062_core_resources, NULL, 0, 0, NULL), MFD_CELL_OF("da9062-regulators", da9062_regulators_resources, NULL, 0, 0, @@ -244,6 +252,16 @@ static const struct mfd_cell da9062_devs[] = { "dlg,da9062-gpio"), }; +static const struct mfd_cell da9062_devs_noirq[] = { + MFD_CELL_OF("da9062-core", NULL, NULL, 0, 0, NULL), + MFD_CELL_OF("da9062-regulators", NULL, NULL, 0, 0, NULL), + MFD_CELL_OF("da9062-watchdog", NULL, NULL, 0, 0, "dlg,da9062-watchdog"), + MFD_CELL_OF("da9062-thermal", NULL, NULL, 0, 0, "dlg,da9062-thermal"), + MFD_CELL_OF("da9062-rtc", NULL, NULL, 0, 0, "dlg,da9062-rtc"), + MFD_CELL_OF("da9062-onkey", NULL, NULL, 0, 0, "dlg,da9062-onkey"), + MFD_CELL_OF("da9062-gpio", NULL, NULL, 0, 0, "dlg,da9062-gpio"), +}; + static int da9062_clear_fault_log(struct da9062 *chip) { int ret; @@ -581,7 +599,7 @@ static int da9062_i2c_probe(struct i2c_client *i2c) { const struct i2c_device_id *id = i2c_client_get_device_id(i2c); struct da9062 *chip; - unsigned int irq_base; + unsigned int irq_base = 0; const struct mfd_cell *cell; const struct regmap_irq_chip *irq_chip; const struct regmap_config *config; @@ -601,22 +619,16 @@ static int da9062_i2c_probe(struct i2c_client *i2c) i2c_set_clientdata(i2c, chip); chip->dev = &i2c->dev; - if (!i2c->irq) { - dev_err(chip->dev, "No IRQ configured\n"); - return -EINVAL; - } - + /* Start with a base configuration without IRQ */ switch (chip->chip_type) { case COMPAT_TYPE_DA9061: - cell = da9061_devs; - cell_num = ARRAY_SIZE(da9061_devs); - irq_chip = &da9061_irq_chip; + cell = da9061_devs_noirq; + cell_num = ARRAY_SIZE(da9061_devs_noirq); config = &da9061_regmap_config; break; case COMPAT_TYPE_DA9062: - cell = da9062_devs; - cell_num = ARRAY_SIZE(da9062_devs); - irq_chip = &da9062_irq_chip; + cell = da9062_devs_noirq; + cell_num = ARRAY_SIZE(da9062_devs_noirq); config = &da9062_regmap_config; break; default: @@ -651,29 +663,43 @@ static int da9062_i2c_probe(struct i2c_client *i2c) if (ret) return ret; - ret = da9062_configure_irq_type(chip, i2c->irq, &trigger_type); - if (ret < 0) { - dev_err(chip->dev, "Failed to configure IRQ type\n"); - return ret; - } + /* If IRQ is available, reconfigure it accordingly */ + if (i2c->irq) { + if (chip->chip_type == COMPAT_TYPE_DA9061) { + cell = da9061_devs_irq; + cell_num = ARRAY_SIZE(da9061_devs_irq); + irq_chip = &da9061_irq_chip; + } else { + cell = da9062_devs_irq; + cell_num = ARRAY_SIZE(da9062_devs_irq); + irq_chip = &da9062_irq_chip; + } - ret = regmap_add_irq_chip(chip->regmap, i2c->irq, - trigger_type | IRQF_SHARED | IRQF_ONESHOT, - -1, irq_chip, &chip->regmap_irq); - if (ret) { - dev_err(chip->dev, "Failed to request IRQ %d: %d\n", - i2c->irq, ret); - return ret; - } + ret = da9062_configure_irq_type(chip, i2c->irq, &trigger_type); + if (ret < 0) { + dev_err(chip->dev, "Failed to configure IRQ type\n"); + return ret; + } - irq_base = regmap_irq_chip_get_base(chip->regmap_irq); + ret = regmap_add_irq_chip(chip->regmap, i2c->irq, + trigger_type | IRQF_SHARED | IRQF_ONESHOT, + -1, irq_chip, &chip->regmap_irq); + if (ret) { + dev_err(chip->dev, "Failed to request IRQ %d: %d\n", + i2c->irq, ret); + return ret; + } + + irq_base = regmap_irq_chip_get_base(chip->regmap_irq); + } ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell, cell_num, NULL, irq_base, NULL); if (ret) { dev_err(chip->dev, "Cannot register child devices\n"); - regmap_del_irq_chip(i2c->irq, chip->regmap_irq); + if (i2c->irq) + regmap_del_irq_chip(i2c->irq, chip->regmap_irq); return ret; }