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Date: Wed, 24 Jul 2013 16:39:18 +0300
From: Grygorii Strashko <grygorii.strashko@...com>
To: Lee Jones <lee.jones@...aro.org>
CC: Samuel Ortiz <sameo@...ux.intel.com>,
Kevin Hilman <khilman@...aro.org>,
Graeme Gregory <gg@...mlogic.co.uk>,
<linux-omap@...r.kernel.org>,
Ruslan Bilovol <ruslan.bilovol@...com>,
<linux-kernel@...r.kernel.org>,
Oleksandr Dmytryshyn <oleksandr.dmytryshyn@...com>
Subject: Re: [PATCH 4/4] mfd: twl6030-irq: Add interrupt mapping table for
the twl6032
On 07/24/2013 02:52 PM, Lee Jones wrote:
> On Tue, 23 Jul 2013, Grygorii Strashko wrote:
>
>> From: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@...com>
>>
>> This patch adds interrupt mapping table for the twl6032.
>
> Repeating the $SUBJECT line is never helpful.
>
>> Signed-off-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@...com>
>> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
>> ---
>> drivers/mfd/twl6030-irq.c | 49 ++++++++++++++++++++++++++++++++++++++++++++-
>> 1 file changed, 48 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
>> index 89f130b..e4df87f 100644
>> --- a/drivers/mfd/twl6030-irq.c
>> +++ b/drivers/mfd/twl6030-irq.c
>> @@ -41,6 +41,7 @@
>> #include <linux/suspend.h>
>> #include <linux/of.h>
>> #include <linux/irqdomain.h>
>> +#include <linux/of_device.h>
>>
>> #include "twl-core.h"
>>
>> @@ -84,6 +85,36 @@ static int twl6030_interrupt_mapping[24] = {
>> CHARGERFAULT_INTR_OFFSET, /* Bit 22 INT_CHRG */
>> RSV_INTR_OFFSET, /* Bit 23 Reserved */
>> };
>> +
>> +static int twl6032_interrupt_mapping[24] = {
>> + PWR_INTR_OFFSET, /* Bit 0 PWRON */
>> + PWR_INTR_OFFSET, /* Bit 1 RPWRON */
>> + PWR_INTR_OFFSET, /* Bit 2 SYS_VLOW */
>> + RTC_INTR_OFFSET, /* Bit 3 RTC_ALARM */
>> + RTC_INTR_OFFSET, /* Bit 4 RTC_PERIOD */
>> + HOTDIE_INTR_OFFSET, /* Bit 5 HOT_DIE */
>> + SMPSLDO_INTR_OFFSET, /* Bit 6 VXXX_SHORT */
>> + PWR_INTR_OFFSET, /* Bit 7 SPDURATION */
>> +
>> + PWR_INTR_OFFSET, /* Bit 8 WATCHDOG */
>> + BATDETECT_INTR_OFFSET, /* Bit 9 BAT */
>> + SIMDETECT_INTR_OFFSET, /* Bit 10 SIM */
>> + MMCDETECT_INTR_OFFSET, /* Bit 11 MMC */
>> + MADC_INTR_OFFSET, /* Bit 12 GPADC_RT_EOC */
>> + MADC_INTR_OFFSET, /* Bit 13 GPADC_SW_EOC */
>> + GASGAUGE_INTR_OFFSET, /* Bit 14 CC_EOC */
>> + GASGAUGE_INTR_OFFSET, /* Bit 15 CC_AUTOCAL */
>> +
>> + USBOTG_INTR_OFFSET, /* Bit 16 ID_WKUP */
>> + USBOTG_INTR_OFFSET, /* Bit 17 VBUS_WKUP */
>> + USBOTG_INTR_OFFSET, /* Bit 18 ID */
>> + USB_PRES_INTR_OFFSET, /* Bit 19 VBUS */
>> + CHARGER_INTR_OFFSET, /* Bit 20 CHRG_CTRL */
>> + CHARGERFAULT_INTR_OFFSET, /* Bit 21 EXT_CHRG */
>> + CHARGERFAULT_INTR_OFFSET, /* Bit 22 INT_CHRG */
>
> OCD failure. ;)
>
> NB: Kidding, you don't have to do anything about this.
>
>> + RSV_INTR_OFFSET, /* Bit 23 Reserved */
>> +};
>> +
>> /*----------------------------------------------------------------------*/
>>
>> static unsigned twl6030_irq_base;
>> @@ -91,6 +122,7 @@ static int twl_irq;
>> static bool twl_irq_wake_enabled;
>>
>> static atomic_t twl6030_wakeirqs = ATOMIC_INIT(0);
>> +static const int *irq_mapping_tbl;
>
> What I'd actually like to see is the creation of 'struct twl6030' to
> keep all your goodies in; irq_domain, irq_mapping_tbl etc and for you
> to pass that around instead of creating more global variables e.g. via
> request_threaded_irq(..., void *dev_id) to access the aforementioned
> information.
I can add this as the first patch in series - Is It ok?
>
>> static int twl6030_irq_pm_notifier(struct notifier_block *notifier,
>> unsigned long pm_event, void *unused)
>> @@ -164,7 +196,7 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data)
>> if (sts.int_sts & 0x1) {
>> int module_irq =
>> irq_find_mapping(irq_domain,
>> - twl6030_interrupt_mapping[i]);
>> + irq_mapping_tbl[i]);
>> if (module_irq)
>> handle_nested_irq(module_irq);
>> else
>> @@ -339,6 +371,12 @@ static struct irq_domain_ops twl6030_irq_domain_ops = {
>> .xlate = irq_domain_xlate_onetwocell,
>> };
>>
>> +static const struct of_device_id twl6030_of_match[] = {
>> + {.compatible = "ti,twl6030", &twl6030_interrupt_mapping},
>> + {.compatible = "ti,twl6032", &twl6032_interrupt_mapping},
>> + { },
>> +};
>> +
>> int twl6030_init_irq(struct device *dev, int irq_num)
>> {
>> struct device_node *node = dev->of_node;
>> @@ -346,6 +384,15 @@ int twl6030_init_irq(struct device *dev, int irq_num)
>> int status;
>> u8 mask[3];
>> struct irq_domain *irq_domain;
>> + const struct of_device_id *of_id;
>> +
>> + of_id = of_match_device(twl6030_of_match, dev);
>> + if (!of_id || !of_id->data) {
>> + dev_err(dev, "Unknown TWL device model\n");
>> + return -EINVAL;
>> + }
>> +
>> + irq_mapping_tbl = of_id->data;
>>
>> nr_irqs = TWL6030_NR_IRQS;
>>
>
Regards,
-grygorii
--
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