From: Jonathan Bakker xc-racer2@live.ca
commit b577a279914085c6b657c33e9f39ef56d96a3302 upstream.
Commit a8be2af0218c ("pinctrl: samsung: Write external wakeup interrupt mask") started writing the eint wakeup mask from the pinctrl driver. Unfortunately, it made the assumption that the private retention data was always a regmap while in the case of s5pv210 it is a raw pointer to the clock base (as the eint wakeup mask not in the PMU as with newer Exynos platforms).
Fixes: a8be2af0218c ("pinctrl: samsung: Write external wakeup interrupt mask") Cc: stable@vger.kernel.org Signed-off-by: Jonathan Bakker xc-racer2@live.ca Signed-off-by: Krzysztof Kozlowski krzk@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/pinctrl/samsung/pinctrl-exynos.c | 73 ++++++++++++++++++++----------- 1 file changed, 49 insertions(+), 24 deletions(-)
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos.c @@ -40,6 +40,8 @@ struct exynos_irq_chip { u32 eint_pend; u32 eint_wake_mask_value; u32 eint_wake_mask_reg; + void (*set_eint_wakeup_mask)(struct samsung_pinctrl_drv_data *drvdata, + struct exynos_irq_chip *irq_chip); };
static inline struct exynos_irq_chip *to_exynos_irq_chip(struct irq_chip *chip) @@ -342,6 +344,47 @@ static int exynos_wkup_irq_set_wake(stru return 0; }
+static void +exynos_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata, + struct exynos_irq_chip *irq_chip) +{ + struct regmap *pmu_regs; + + if (!drvdata->retention_ctrl || !drvdata->retention_ctrl->priv) { + dev_warn(drvdata->dev, + "No retention data configured bank with external wakeup interrupt. Wake-up mask will not be set.\n"); + return; + } + + pmu_regs = drvdata->retention_ctrl->priv; + dev_info(drvdata->dev, + "Setting external wakeup interrupt mask: 0x%x\n", + irq_chip->eint_wake_mask_value); + + regmap_write(pmu_regs, irq_chip->eint_wake_mask_reg, + irq_chip->eint_wake_mask_value); +} + +static void +s5pv210_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata, + struct exynos_irq_chip *irq_chip) + +{ + void __iomem *clk_base; + + if (!drvdata->retention_ctrl || !drvdata->retention_ctrl->priv) { + dev_warn(drvdata->dev, + "No retention data configured bank with external wakeup interrupt. Wake-up mask will not be set.\n"); + return; + } + + + clk_base = (void __iomem *) drvdata->retention_ctrl->priv; + + __raw_writel(irq_chip->eint_wake_mask_value, + clk_base + irq_chip->eint_wake_mask_reg); +} + /* * irq_chip for wakeup interrupts */ @@ -360,8 +403,9 @@ static const struct exynos_irq_chip s5pv .eint_mask = EXYNOS_WKUP_EMASK_OFFSET, .eint_pend = EXYNOS_WKUP_EPEND_OFFSET, .eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED, - /* Only difference with exynos4210_wkup_irq_chip: */ + /* Only differences with exynos4210_wkup_irq_chip: */ .eint_wake_mask_reg = S5PV210_EINT_WAKEUP_MASK, + .set_eint_wakeup_mask = s5pv210_pinctrl_set_eint_wakeup_mask, };
static const struct exynos_irq_chip exynos4210_wkup_irq_chip __initconst = { @@ -380,6 +424,7 @@ static const struct exynos_irq_chip exyn .eint_pend = EXYNOS_WKUP_EPEND_OFFSET, .eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED, .eint_wake_mask_reg = EXYNOS_EINT_WAKEUP_MASK, + .set_eint_wakeup_mask = exynos_pinctrl_set_eint_wakeup_mask, };
static const struct exynos_irq_chip exynos7_wkup_irq_chip __initconst = { @@ -398,6 +443,7 @@ static const struct exynos_irq_chip exyn .eint_pend = EXYNOS7_WKUP_EPEND_OFFSET, .eint_wake_mask_value = EXYNOS_EINT_WAKEUP_MASK_DISABLED, .eint_wake_mask_reg = EXYNOS5433_EINT_WAKEUP_MASK, + .set_eint_wakeup_mask = exynos_pinctrl_set_eint_wakeup_mask, };
/* list of external wakeup controllers supported */ @@ -574,27 +620,6 @@ int exynos_eint_wkup_init(struct samsung return 0; }
-static void -exynos_pinctrl_set_eint_wakeup_mask(struct samsung_pinctrl_drv_data *drvdata, - struct exynos_irq_chip *irq_chip) -{ - struct regmap *pmu_regs; - - if (!drvdata->retention_ctrl || !drvdata->retention_ctrl->priv) { - dev_warn(drvdata->dev, - "No retention data configured bank with external wakeup interrupt. Wake-up mask will not be set.\n"); - return; - } - - pmu_regs = drvdata->retention_ctrl->priv; - dev_info(drvdata->dev, - "Setting external wakeup interrupt mask: 0x%x\n", - irq_chip->eint_wake_mask_value); - - regmap_write(pmu_regs, irq_chip->eint_wake_mask_reg, - irq_chip->eint_wake_mask_value); -} - static void exynos_pinctrl_suspend_bank( struct samsung_pinctrl_drv_data *drvdata, struct samsung_pin_bank *bank) @@ -626,8 +651,8 @@ void exynos_pinctrl_suspend(struct samsu else if (bank->eint_type == EINT_TYPE_WKUP) { if (!irq_chip) { irq_chip = bank->irq_chip; - exynos_pinctrl_set_eint_wakeup_mask(drvdata, - irq_chip); + irq_chip->set_eint_wakeup_mask(drvdata, + irq_chip); } else if (bank->irq_chip != irq_chip) { dev_warn(drvdata->dev, "More than one external wakeup interrupt chip configured (bank: %s). This is not supported by hardware nor by driver.\n",