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path: root/drivers/mfd/mt6397-core.c
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Diffstat (limited to 'drivers/mfd/mt6397-core.c')
-rw-r--r--drivers/mfd/mt6397-core.c192
1 files changed, 32 insertions, 160 deletions
diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 337bcccdb914..310dae26ddff 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -5,34 +5,34 @@
*/
#include <linux/interrupt.h>
+#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/regmap.h>
#include <linux/mfd/core.h>
-#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6323/core.h>
-#include <linux/mfd/mt6397/registers.h>
+#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6323/registers.h>
+#include <linux/mfd/mt6397/registers.h>
+
+#define MT6323_RTC_BASE 0x8000
+#define MT6323_RTC_SIZE 0x40
#define MT6397_RTC_BASE 0xe000
#define MT6397_RTC_SIZE 0x3e
-#define MT6323_CID_CODE 0x23
-#define MT6391_CID_CODE 0x91
-#define MT6397_CID_CODE 0x97
+#define MT6323_PWRC_BASE 0x8000
+#define MT6323_PWRC_SIZE 0x40
+
+static const struct resource mt6323_rtc_resources[] = {
+ DEFINE_RES_MEM(MT6323_RTC_BASE, MT6323_RTC_SIZE),
+ DEFINE_RES_IRQ(MT6323_IRQ_STATUS_RTC),
+};
static const struct resource mt6397_rtc_resources[] = {
- {
- .start = MT6397_RTC_BASE,
- .end = MT6397_RTC_BASE + MT6397_RTC_SIZE,
- .flags = IORESOURCE_MEM,
- },
- {
- .start = MT6397_IRQ_RTC,
- .end = MT6397_IRQ_RTC,
- .flags = IORESOURCE_IRQ,
- },
+ DEFINE_RES_MEM(MT6397_RTC_BASE, MT6397_RTC_SIZE),
+ DEFINE_RES_IRQ(MT6397_IRQ_RTC),
};
static const struct resource mt6323_keys_resources[] = {
@@ -45,8 +45,17 @@ static const struct resource mt6397_keys_resources[] = {
DEFINE_RES_IRQ(MT6397_IRQ_HOMEKEY),
};
+static const struct resource mt6323_pwrc_resources[] = {
+ DEFINE_RES_MEM(MT6323_PWRC_BASE, MT6323_PWRC_SIZE),
+};
+
static const struct mfd_cell mt6323_devs[] = {
{
+ .name = "mt6323-rtc",
+ .num_resources = ARRAY_SIZE(mt6323_rtc_resources),
+ .resources = mt6323_rtc_resources,
+ .of_compatible = "mediatek,mt6323-rtc",
+ }, {
.name = "mt6323-regulator",
.of_compatible = "mediatek,mt6323-regulator"
}, {
@@ -57,6 +66,11 @@ static const struct mfd_cell mt6323_devs[] = {
.num_resources = ARRAY_SIZE(mt6323_keys_resources),
.resources = mt6323_keys_resources,
.of_compatible = "mediatek,mt6323-keys"
+ }, {
+ .name = "mt6323-pwrc",
+ .num_resources = ARRAY_SIZE(mt6323_pwrc_resources),
+ .resources = mt6323_pwrc_resources,
+ .of_compatible = "mediatek,mt6323-pwrc"
},
};
@@ -86,148 +100,6 @@ static const struct mfd_cell mt6397_devs[] = {
}
};
-static void mt6397_irq_lock(struct irq_data *data)
-{
- struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
-
- mutex_lock(&mt6397->irqlock);
-}
-
-static void mt6397_irq_sync_unlock(struct irq_data *data)
-{
- struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
-
- regmap_write(mt6397->regmap, mt6397->int_con[0],
- mt6397->irq_masks_cur[0]);
- regmap_write(mt6397->regmap, mt6397->int_con[1],
- mt6397->irq_masks_cur[1]);
-
- mutex_unlock(&mt6397->irqlock);
-}
-
-static void mt6397_irq_disable(struct irq_data *data)
-{
- struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
- int shift = data->hwirq & 0xf;
- int reg = data->hwirq >> 4;
-
- mt6397->irq_masks_cur[reg] &= ~BIT(shift);
-}
-
-static void mt6397_irq_enable(struct irq_data *data)
-{
- struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(data);
- int shift = data->hwirq & 0xf;
- int reg = data->hwirq >> 4;
-
- mt6397->irq_masks_cur[reg] |= BIT(shift);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int mt6397_irq_set_wake(struct irq_data *irq_data, unsigned int on)
-{
- struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(irq_data);
- int shift = irq_data->hwirq & 0xf;
- int reg = irq_data->hwirq >> 4;
-
- if (on)
- mt6397->wake_mask[reg] |= BIT(shift);
- else
- mt6397->wake_mask[reg] &= ~BIT(shift);
-
- return 0;
-}
-#else
-#define mt6397_irq_set_wake NULL
-#endif
-
-static struct irq_chip mt6397_irq_chip = {
- .name = "mt6397-irq",
- .irq_bus_lock = mt6397_irq_lock,
- .irq_bus_sync_unlock = mt6397_irq_sync_unlock,
- .irq_enable = mt6397_irq_enable,
- .irq_disable = mt6397_irq_disable,
- .irq_set_wake = mt6397_irq_set_wake,
-};
-
-static void mt6397_irq_handle_reg(struct mt6397_chip *mt6397, int reg,
- int irqbase)
-{
- unsigned int status;
- int i, irq, ret;
-
- ret = regmap_read(mt6397->regmap, reg, &status);
- if (ret) {
- dev_err(mt6397->dev, "Failed to read irq status: %d\n", ret);
- return;
- }
-
- for (i = 0; i < 16; i++) {
- if (status & BIT(i)) {
- irq = irq_find_mapping(mt6397->irq_domain, irqbase + i);
- if (irq)
- handle_nested_irq(irq);
- }
- }
-
- regmap_write(mt6397->regmap, reg, status);
-}
-
-static irqreturn_t mt6397_irq_thread(int irq, void *data)
-{
- struct mt6397_chip *mt6397 = data;
-
- mt6397_irq_handle_reg(mt6397, mt6397->int_status[0], 0);
- mt6397_irq_handle_reg(mt6397, mt6397->int_status[1], 16);
-
- return IRQ_HANDLED;
-}
-
-static int mt6397_irq_domain_map(struct irq_domain *d, unsigned int irq,
- irq_hw_number_t hw)
-{
- struct mt6397_chip *mt6397 = d->host_data;
-
- irq_set_chip_data(irq, mt6397);
- irq_set_chip_and_handler(irq, &mt6397_irq_chip, handle_level_irq);
- irq_set_nested_thread(irq, 1);
- irq_set_noprobe(irq);
-
- return 0;
-}
-
-static const struct irq_domain_ops mt6397_irq_domain_ops = {
- .map = mt6397_irq_domain_map,
-};
-
-static int mt6397_irq_init(struct mt6397_chip *mt6397)
-{
- int ret;
-
- mutex_init(&mt6397->irqlock);
-
- /* Mask all interrupt sources */
- regmap_write(mt6397->regmap, mt6397->int_con[0], 0x0);
- regmap_write(mt6397->regmap, mt6397->int_con[1], 0x0);
-
- mt6397->irq_domain = irq_domain_add_linear(mt6397->dev->of_node,
- MT6397_IRQ_NR, &mt6397_irq_domain_ops, mt6397);
- if (!mt6397->irq_domain) {
- dev_err(mt6397->dev, "could not create irq domain\n");
- return -ENOMEM;
- }
-
- ret = devm_request_threaded_irq(mt6397->dev, mt6397->irq, NULL,
- mt6397_irq_thread, IRQF_ONESHOT, "mt6397-pmic", mt6397);
- if (ret) {
- dev_err(mt6397->dev, "failed to register irq=%d; err: %d\n",
- mt6397->irq, ret);
- return ret;
- }
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static int mt6397_irq_suspend(struct device *dev)
{
@@ -290,7 +162,7 @@ static int mt6397_probe(struct platform_device *pdev)
return pmic->irq;
switch (id & 0xff) {
- case MT6323_CID_CODE:
+ case MT6323_CHIP_ID:
pmic->int_con[0] = MT6323_INT_CON0;
pmic->int_con[1] = MT6323_INT_CON1;
pmic->int_status[0] = MT6323_INT_STATUS0;
@@ -304,8 +176,8 @@ static int mt6397_probe(struct platform_device *pdev)
0, pmic->irq_domain);
break;
- case MT6397_CID_CODE:
- case MT6391_CID_CODE:
+ case MT6391_CHIP_ID:
+ case MT6397_CHIP_ID:
pmic->int_con[0] = MT6397_INT_CON0;
pmic->int_con[1] = MT6397_INT_CON1;
pmic->int_status[0] = MT6397_INT_STATUS0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.