diff options
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mt8173.c | 1 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 91 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.h | 4 |
3 files changed, 95 insertions, 1 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8173.c b/drivers/pinctrl/mediatek/pinctrl-mt8173.c index d0c811d..ad27184 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt8173.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt8173.c @@ -385,6 +385,7 @@ static struct platform_driver mtk_pinctrl_driver = { .driver = { .name = "mediatek-mt8173-pinctrl", .of_match_table = mt8173_pctrl_match, + .pm = &mtk_eint_pm_ops, }, }; diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index f6cdeee..7726c6c 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -33,6 +33,7 @@ #include <linux/mfd/syscon.h> #include <linux/delay.h> #include <linux/interrupt.h> +#include <linux/pm.h> #include <dt-bindings/pinctrl/mt65xx.h> #include "../core.h" @@ -1062,6 +1063,77 @@ static int mtk_eint_set_type(struct irq_data *d, return 0; } +static int mtk_eint_irq_set_wake(struct irq_data *d, unsigned int on) +{ + struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); + int shift = d->hwirq & 0x1f; + int reg = d->hwirq >> 5; + + if (on) + pctl->wake_mask[reg] |= BIT(shift); + else + pctl->wake_mask[reg] &= ~BIT(shift); + + return 0; +} + +static void mtk_eint_chip_write_mask(const struct mtk_eint_offsets *chip, + void __iomem *eint_reg_base, u32 *buf) +{ + int port; + void __iomem *reg; + + for (port = 0; port < chip->ports; port++) { + reg = eint_reg_base + (port << 2); + writel_relaxed(~buf[port], reg + chip->mask_set); + writel_relaxed(buf[port], reg + chip->mask_clr); + } +} + +static void mtk_eint_chip_read_mask(const struct mtk_eint_offsets *chip, + void __iomem *eint_reg_base, u32 *buf) +{ + int port; + void __iomem *reg; + + for (port = 0; port < chip->ports; port++) { + reg = eint_reg_base + chip->mask + (port << 2); + buf[port] = ~readl_relaxed(reg); + /* Mask is 0 when irq is enabled, and 1 when disabled. */ + } +} + +static int mtk_eint_suspend(struct device *device) +{ + void __iomem *reg; + struct mtk_pinctrl *pctl = dev_get_drvdata(device); + const struct mtk_eint_offsets *eint_offsets = + &pctl->devdata->eint_offsets; + + reg = pctl->eint_reg_base; + mtk_eint_chip_read_mask(eint_offsets, reg, pctl->cur_mask); + mtk_eint_chip_write_mask(eint_offsets, reg, pctl->wake_mask); + + return 0; +} + +static int mtk_eint_resume(struct device *device) +{ + struct mtk_pinctrl *pctl = dev_get_drvdata(device); + const struct mtk_eint_offsets *eint_offsets = + &pctl->devdata->eint_offsets; + + mtk_eint_chip_write_mask(eint_offsets, + pctl->eint_reg_base, pctl->cur_mask); + + return 0; +} + +const struct dev_pm_ops mtk_eint_pm_ops = { + .suspend = mtk_eint_suspend, + .resume = mtk_eint_resume, +}; + static void mtk_eint_ack(struct irq_data *d) { struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); @@ -1076,10 +1148,12 @@ static void mtk_eint_ack(struct irq_data *d) static struct irq_chip mtk_pinctrl_irq_chip = { .name = "mt-eint", + .irq_disable = mtk_eint_mask, .irq_mask = mtk_eint_mask, .irq_unmask = mtk_eint_unmask, .irq_ack = mtk_eint_ack, .irq_set_type = mtk_eint_set_type, + .irq_set_wake = mtk_eint_irq_set_wake, .irq_request_resources = mtk_pinctrl_irq_request_resources, .irq_release_resources = mtk_pinctrl_irq_release_resources, }; @@ -1211,7 +1285,7 @@ int mtk_pctrl_init(struct platform_device *pdev, struct device_node *np = pdev->dev.of_node, *node; struct property *prop; struct resource *res; - int i, ret, irq; + int i, ret, irq, ports_buf; pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); if (!pctl) @@ -1318,6 +1392,21 @@ int mtk_pctrl_init(struct platform_device *pdev, goto chip_error; } + ports_buf = pctl->devdata->eint_offsets.ports; + pctl->wake_mask = devm_kcalloc(&pdev->dev, ports_buf, + sizeof(*pctl->wake_mask), GFP_KERNEL); + if (!pctl->wake_mask) { + ret = -ENOMEM; + goto chip_error; + } + + pctl->cur_mask = devm_kcalloc(&pdev->dev, ports_buf, + sizeof(*pctl->cur_mask), GFP_KERNEL); + if (!pctl->cur_mask) { + ret = -ENOMEM; + goto chip_error; + } + pctl->eint_dual_edges = devm_kcalloc(&pdev->dev, pctl->devdata->ap_num, sizeof(int), GFP_KERNEL); if (!pctl->eint_dual_edges) { diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h index c532c23..55a5343 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h @@ -267,6 +267,8 @@ struct mtk_pinctrl { void __iomem *eint_reg_base; struct irq_domain *domain; int *eint_dual_edges; + u32 *wake_mask; + u32 *cur_mask; }; int mtk_pctrl_init(struct platform_device *pdev, @@ -282,4 +284,6 @@ int mtk_pconf_spec_set_ies_smt_range(struct regmap *regmap, const struct mtk_pin_ies_smt_set *ies_smt_infos, unsigned int info_num, unsigned int pin, unsigned char align, int value); +extern const struct dev_pm_ops mtk_eint_pm_ops; + #endif /* __PINCTRL_MTK_COMMON_H */ |
