From: Steve Twiss <stwiss.opensource@xxxxxxxxxxx> Add MFD support for the DA9063 OnKey driver Signed-off-by: Steve Twiss <stwiss.opensource@xxxxxxxxxxx> --- Version History Changes in V3 - The MFD code was originally in [PATCH V2 1/2]. This is now been moved into this patch [PATCH V3 3/3]. - Whitespace cleanup This patch applies against linux-next and v4.1-rc1 drivers/mfd/da9063-core.c | 54 ++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/da9063/pdata.h | 1 + 2 files changed, 55 insertions(+) diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c index facd361..af841c1 100644 --- a/drivers/mfd/da9063-core.c +++ b/drivers/mfd/da9063-core.c @@ -60,6 +60,7 @@ static struct resource da9063_rtc_resources[] = { static struct resource da9063_onkey_resources[] = { { + .name = "ONKEY", .start = DA9063_IRQ_ONKEY, .end = DA9063_IRQ_ONKEY, .flags = IORESOURCE_IRQ, @@ -97,6 +98,7 @@ static const struct mfd_cell da9063_devs[] = { .name = DA9063_DRVNAME_ONKEY, .num_resources = ARRAY_SIZE(da9063_onkey_resources), .resources = da9063_onkey_resources, + .of_compatible = "dlg,da9063-onkey", }, { .name = DA9063_DRVNAME_RTC, @@ -109,12 +111,64 @@ static const struct mfd_cell da9063_devs[] = { }, }; +static int da9063_clear_fault_log(struct da9063 *da9063) +{ + int ret = 0; + int fault_log = 0; + + ret = regmap_read(da9063->regmap, DA9063_REG_FAULT_LOG, &fault_log); + if (ret < 0) { + dev_err(da9063->dev, "Cannot read FAULT_LOG.\n"); + return -EIO; + } + + if (fault_log) { + if (fault_log & DA9063_TWD_ERROR) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_TWD_ERROR\n"); + if (fault_log & DA9063_POR) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_POR\n"); + if (fault_log & DA9063_VDD_FAULT) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_VDD_FAULT\n"); + if (fault_log & DA9063_VDD_START) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_VDD_START\n"); + if (fault_log & DA9063_TEMP_CRIT) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_TEMP_CRIT\n"); + if (fault_log & DA9063_KEY_RESET) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_KEY_RESET\n"); + if (fault_log & DA9063_NSHUTDOWN) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_NSHUTDOWN\n"); + if (fault_log & DA9063_WAIT_SHUT) + dev_dbg(da9063->dev, + "Fault log entry detected: DA9063_WAIT_SHUT\n"); + } + + ret = regmap_write(da9063->regmap, + DA9063_REG_FAULT_LOG, + fault_log); + if (ret < 0) + dev_err(da9063->dev, + "Cannot reset FAULT_LOG values %d\n", ret); + + return ret; +} + int da9063_device_init(struct da9063 *da9063, unsigned int irq) { struct da9063_pdata *pdata = da9063->dev->platform_data; int model, variant_id, variant_code; int ret; + ret = da9063_clear_fault_log(da9063); + if (ret < 0) + dev_err(da9063->dev, "Cannot clear fault log\n"); + if (pdata) { da9063->flags = pdata->flags; da9063->irq_base = pdata->irq_base; diff --git a/include/linux/mfd/da9063/pdata.h b/include/linux/mfd/da9063/pdata.h index 95c8742..612383b 100644 --- a/include/linux/mfd/da9063/pdata.h +++ b/include/linux/mfd/da9063/pdata.h @@ -103,6 +103,7 @@ struct da9063; struct da9063_pdata { int (*init)(struct da9063 *da9063); int irq_base; + bool key_power; unsigned flags; struct da9063_regulators_pdata *regulators_pdata; struct led_platform_data *leds_pdata; -- end-of-patch for PATCH V3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html