Merge tag 'v6.14-rc4' into next

Sync up with the mainline.

6 files changed, 35 insertions, 22 deletions

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 675b252d9c8c..ccd54c089bab 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -242,6 +242,9 @@ int pwm_round_waveform_might_sleep(struct pwm_device *pwm, struct pwm_waveform *
 
 	BUG_ON(WFHWSIZE < ops->sizeof_wfhw);
 
+	if (!pwmchip_supports_waveform(chip))
+		return -EOPNOTSUPP;
+
 	if (!pwm_wf_valid(wf))
 		return -EINVAL;
 
@@ -294,6 +297,9 @@ int pwm_get_waveform_might_sleep(struct pwm_device *pwm, struct pwm_waveform *wf
 
 	BUG_ON(WFHWSIZE < ops->sizeof_wfhw);
 
+	if (!pwmchip_supports_waveform(chip) || !ops->read_waveform)
+		return -EOPNOTSUPP;
+
 	guard(pwmchip)(chip);
 
 	if (!chip->operational)
@@ -320,6 +326,9 @@ static int __pwm_set_waveform(struct pwm_device *pwm,
 
 	BUG_ON(WFHWSIZE < ops->sizeof_wfhw);
 
+	if (!pwmchip_supports_waveform(chip))
+		return -EOPNOTSUPP;
+
 	if (!pwm_wf_valid(wf))
 		return -EINVAL;
 
@@ -592,7 +601,7 @@ static int __pwm_apply(struct pwm_device *pwm, const struct pwm_state *state)
 	    state->usage_power == pwm->state.usage_power)
 		return 0;
 
-	if (ops->write_waveform) {
+	if (pwmchip_supports_waveform(chip)) {
 		struct pwm_waveform wf;
 		char wfhw[WFHWSIZE];
 
@@ -746,7 +755,7 @@ int pwm_get_state_hw(struct pwm_device *pwm, struct pwm_state *state)
 	if (!chip->operational)
 		return -ENODEV;
 
-	if (ops->read_waveform) {
+	if (pwmchip_supports_waveform(chip) && ops->read_waveform) {
 		char wfhw[WFHWSIZE];
 		struct pwm_waveform wf;
 
@@ -1276,7 +1285,7 @@ static int pwm_export_child(struct device *pwmchip_dev, struct pwm_device *pwm)
 	return 0;
 }
 
-static int pwm_unexport_match(struct device *pwm_dev, void *data)
+static int pwm_unexport_match(struct device *pwm_dev, const void *data)
 {
 	return pwm_from_dev(pwm_dev) == data;
 }
diff --git a/drivers/pwm/pwm-dwc.c b/drivers/pwm/pwm-dwc.c
index fb3eadf6fbc4..b6c16139ce4a 100644
--- a/drivers/pwm/pwm-dwc.c
+++ b/drivers/pwm/pwm-dwc.c
@@ -66,20 +66,16 @@ static int dwc_pwm_probe(struct pci_dev *pci, const struct pci_device_id *id)
 
 	pci_set_master(pci);
 
-	ret = pcim_iomap_regions(pci, BIT(0), pci_name(pci));
-	if (ret)
-		return dev_err_probe(dev, ret, "Failed to iomap PCI BAR\n");
-
 	info = (const struct dwc_pwm_info *)id->driver_data;
 	ddata = devm_kzalloc(dev, struct_size(ddata, chips, info->nr), GFP_KERNEL);
 	if (!ddata)
 		return -ENOMEM;
 
-	/*
-	 * No need to check for pcim_iomap_table() failure,
-	 * pcim_iomap_regions() already does it for us.
-	 */
-	ddata->io_base = pcim_iomap_table(pci)[0];
+	ddata->io_base = pcim_iomap_region(pci, 0, "pwm-dwc");
+	if (IS_ERR(ddata->io_base))
+		return dev_err_probe(dev, PTR_ERR(ddata->io_base),
+				     "Failed to request / iomap PCI BAR\n");
+
 	ddata->info = info;
 
 	for (idx = 0; idx < ddata->info->nr; idx++) {
diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c
index ddc2a4ca90fd..ae25d9321d75 100644
--- a/drivers/pwm/pwm-lpss-pci.c
+++ b/drivers/pwm/pwm-lpss-pci.c
@@ -18,6 +18,7 @@ static int pwm_lpss_probe_pci(struct pci_dev *pdev,
 			      const struct pci_device_id *id)
 {
 	const struct pwm_lpss_boardinfo *info;
+	void __iomem *io_base;
 	struct pwm_chip *chip;
 	int err;
 
@@ -25,12 +26,12 @@ static int pwm_lpss_probe_pci(struct pci_dev *pdev,
 	if (err < 0)
 		return err;
 
-	err = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
-	if (err)
-		return err;
+	io_base = pcim_iomap_region(pdev, 0, "pwm-lpss");
+	if (IS_ERR(io_base))
+		return PTR_ERR(io_base);
 
 	info = (struct pwm_lpss_boardinfo *)id->driver_data;
-	chip = devm_pwm_lpss_probe(&pdev->dev, pcim_iomap_table(pdev)[0], info);
+	chip = devm_pwm_lpss_probe(&pdev->dev, io_base, info);
 	if (IS_ERR(chip))
 		return PTR_ERR(chip);
 
diff --git a/drivers/pwm/pwm-microchip-core.c b/drivers/pwm/pwm-microchip-core.c
index c1f2287b8e97..12821b4bbf97 100644
--- a/drivers/pwm/pwm-microchip-core.c
+++ b/drivers/pwm/pwm-microchip-core.c
@@ -327,7 +327,7 @@ static int mchp_core_pwm_apply_locked(struct pwm_chip *chip, struct pwm_device *
 		 * mchp_core_pwm_calc_period().
 		 * The period is locked and we cannot change this, so we abort.
 		 */
-		if (hw_period_steps == MCHPCOREPWM_PERIOD_STEPS_MAX)
+		if (hw_period_steps > MCHPCOREPWM_PERIOD_STEPS_MAX)
 			return -EINVAL;
 
 		prescale = hw_prescale;
diff --git a/drivers/pwm/pwm-stm32-lp.c b/drivers/pwm/pwm-stm32-lp.c
index 989731256f50..5832dce8ed9d 100644
--- a/drivers/pwm/pwm-stm32-lp.c
+++ b/drivers/pwm/pwm-stm32-lp.c
@@ -167,8 +167,12 @@ static int stm32_pwm_lp_get_state(struct pwm_chip *chip,
 	regmap_read(priv->regmap, STM32_LPTIM_CR, &val);
 	state->enabled = !!FIELD_GET(STM32_LPTIM_ENABLE, val);
 	/* Keep PWM counter clock refcount in sync with PWM initial state */
-	if (state->enabled)
-		clk_enable(priv->clk);
+	if (state->enabled) {
+		int ret = clk_enable(priv->clk);
+
+		if (ret)
+			return ret;
+	}
 
 	regmap_read(priv->regmap, STM32_LPTIM_CFGR, &val);
 	presc = FIELD_GET(STM32_LPTIM_PRESC, val);
diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index b889e64522c3..a59de4de18b6 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -84,7 +84,7 @@ static int stm32_pwm_round_waveform_tohw(struct pwm_chip *chip,
 
 	wfhw->ccer = TIM_CCER_CCxE(ch + 1);
 	if (priv->have_complementary_output)
-		wfhw->ccer = TIM_CCER_CCxNE(ch + 1);
+		wfhw->ccer |= TIM_CCER_CCxNE(ch + 1);
 
 	rate = clk_get_rate(priv->clk);
 
@@ -858,8 +858,11 @@ static int stm32_pwm_probe(struct platform_device *pdev)
 	chip->ops = &stm32pwm_ops;
 
 	/* Initialize clock refcount to number of enabled PWM channels. */
-	for (i = 0; i < num_enabled; i++)
-		clk_enable(priv->clk);
+	for (i = 0; i < num_enabled; i++) {
+		ret = clk_enable(priv->clk);
+		if (ret)
+			return ret;
+	}
 
 	ret = devm_pwmchip_add(dev, chip);
 	if (ret < 0)