diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.yaml b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.yaml
index 41cea4979132..cb2f36e7b5d6 100644
--- a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.yaml
@@ -16,6 +16,7 @@ properties:
       - enum:
           - nvidia,tegra20-pwm
           - nvidia,tegra186-pwm
+          - nvidia,tegra264-pwm
 
       - items:
           - enum:
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index e8886a9b64d9..729776086879 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -569,7 +569,7 @@ config PWM_PCA9685
 config PWM_PXA
 	tristate "PXA PWM support"
 	depends on ARCH_PXA || ARCH_MMP || ARCH_SPACEMIT || COMPILE_TEST
-	depends on HAS_IOMEM
+	depends on HAS_IOMEM && OF
 	help
 	  Generic PWM framework driver for PXA.
 
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index be4885da85b6..2a050ff4608b 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -2647,14 +2647,14 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
 		if (test_bit(PWMF_REQUESTED, &pwm->flags))
 			seq_puts(s, " requested");
 
-		seq_puts(s, "\n");
+		seq_putc(s, '\n');
 
 		seq_printf(s, "  requested configuration: %3sabled, %llu/%llu ns, %s polarity",
 			   state.enabled ? "en" : "dis", state.duty_cycle, state.period,
 			   state.polarity ? "inverse" : "normal");
 		if (state.usage_power)
 			seq_puts(s, ", usage_power");
-		seq_puts(s, "\n");
+		seq_putc(s, '\n');
 
 		if (pwmchip_supports_waveform(chip)) {
 			struct pwm_waveform wf;
@@ -2677,7 +2677,7 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
 				seq_printf(s, "  actual configuration: read out error: %pe", ERR_PTR(err));
 		}
 
-		seq_puts(s, "\n");
+		seq_putc(s, '\n');
 	}
 }
 
diff --git a/drivers/pwm/pwm-adp5585.c b/drivers/pwm/pwm-adp5585.c
index 0644ff40f0fb..9a1dbba75bc1 100644
--- a/drivers/pwm/pwm-adp5585.c
+++ b/drivers/pwm/pwm-adp5585.c
@@ -202,8 +202,8 @@ static const struct adp5585_pwm_chip adp5589_pwm_chip_info = {
 };
 
 static const struct platform_device_id adp5585_pwm_id_table[] = {
-	{ "adp5585-pwm", (kernel_ulong_t)&adp5585_pwm_chip_info },
-	{ "adp5589-pwm", (kernel_ulong_t)&adp5589_pwm_chip_info },
+	{ .name = "adp5585-pwm", .driver_data = (kernel_ulong_t)&adp5585_pwm_chip_info },
+	{ .name = "adp5589-pwm", .driver_data = (kernel_ulong_t)&adp5589_pwm_chip_info },
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(platform, adp5585_pwm_id_table);
diff --git a/drivers/pwm/pwm-apple.c b/drivers/pwm/pwm-apple.c
index aa49ca1c30e8..dac8c9a76b2d 100644
--- a/drivers/pwm/pwm-apple.c
+++ b/drivers/pwm/pwm-apple.c
@@ -141,7 +141,7 @@ static int apple_pwm_probe(struct platform_device *pdev)
 
 static const struct of_device_id apple_pwm_of_match[] = {
 	{ .compatible = "apple,s5l-fpwm" },
-	{}
+	{ }
 };
 MODULE_DEVICE_TABLE(of, apple_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-argon-fan-hat.c b/drivers/pwm/pwm-argon-fan-hat.c
index 2c59bd142d40..b480663e87d5 100644
--- a/drivers/pwm/pwm-argon-fan-hat.c
+++ b/drivers/pwm/pwm-argon-fan-hat.c
@@ -89,7 +89,7 @@ static int argon_fan_hat_i2c_probe(struct i2c_client *i2c)
 
 static const struct of_device_id argon_fan_hat_dt_ids[] = {
 	{ .compatible = "argon40,fan-hat" },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, argon_fan_hat_dt_ids);
 
diff --git a/drivers/pwm/pwm-atmel-hlcdc.c b/drivers/pwm/pwm-atmel-hlcdc.c
index 387a0d1fa4f2..1ba2c9a049b9 100644
--- a/drivers/pwm/pwm-atmel-hlcdc.c
+++ b/drivers/pwm/pwm-atmel-hlcdc.c
@@ -217,23 +217,20 @@ static const struct of_device_id atmel_hlcdc_dt_ids[] = {
 		.compatible = "atmel,at91sam9n12-hlcdc",
 		/* 9n12 has same errata as 9x5 HLCDC PWM */
 		.data = &atmel_hlcdc_pwm_at91sam9x5_errata,
-	},
-	{
+	}, {
 		.compatible = "atmel,at91sam9x5-hlcdc",
 		.data = &atmel_hlcdc_pwm_at91sam9x5_errata,
-	},
-	{
+	}, {
 		.compatible = "atmel,sama5d2-hlcdc",
-	},
-	{
+	}, {
 		.compatible = "atmel,sama5d3-hlcdc",
 		.data = &atmel_hlcdc_pwm_sama5d3_errata,
-	},
-	{
+	}, {
 		.compatible = "atmel,sama5d4-hlcdc",
 		.data = &atmel_hlcdc_pwm_sama5d3_errata,
+	}, {
+		.compatible = "microchip,sam9x60-hlcdc",
 	},
-	{	.compatible = "microchip,sam9x60-hlcdc", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, atmel_hlcdc_dt_ids);
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index a765ef279b51..f74a42d75b81 100644
--- a/drivers/pwm/pwm-atmel-tcb.c
+++ b/drivers/pwm/pwm-atmel-tcb.c
@@ -374,9 +374,9 @@ static struct atmel_tcb_config tcb_sama5d2_config = {
 };
 
 static const struct of_device_id atmel_tcb_of_match[] = {
-	{ .compatible = "atmel,at91rm9200-tcb", .data = &tcb_rm9200_config, },
-	{ .compatible = "atmel,at91sam9x5-tcb", .data = &tcb_sam9x5_config, },
-	{ .compatible = "atmel,sama5d2-tcb", .data = &tcb_sama5d2_config, },
+	{ .compatible = "atmel,at91rm9200-tcb", .data = &tcb_rm9200_config },
+	{ .compatible = "atmel,at91sam9x5-tcb", .data = &tcb_sam9x5_config },
+	{ .compatible = "atmel,sama5d2-tcb", .data = &tcb_sama5d2_config },
 	{ /* sentinel */ }
 };
 
diff --git a/drivers/pwm/pwm-atmel.c b/drivers/pwm/pwm-atmel.c
index 06d22d0f7b26..86918523d821 100644
--- a/drivers/pwm/pwm-atmel.c
+++ b/drivers/pwm/pwm-atmel.c
@@ -441,9 +441,8 @@ static const struct of_device_id atmel_pwm_dt_ids[] = {
 	}, {
 		.compatible = "microchip,sam9x60-pwm",
 		.data = &mchp_sam9x60_pwm_data,
-	}, {
-		/* sentinel */
 	},
+	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, atmel_pwm_dt_ids);
 
diff --git a/drivers/pwm/pwm-bcm-iproc.c b/drivers/pwm/pwm-bcm-iproc.c
index f4c9f10e490e..dc1e792b1e08 100644
--- a/drivers/pwm/pwm-bcm-iproc.c
+++ b/drivers/pwm/pwm-bcm-iproc.c
@@ -230,7 +230,7 @@ static int iproc_pwmc_probe(struct platform_device *pdev)
 
 static const struct of_device_id bcm_iproc_pwmc_dt[] = {
 	{ .compatible = "brcm,iproc-pwm" },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, bcm_iproc_pwmc_dt);
 
diff --git a/drivers/pwm/pwm-bcm-kona.c b/drivers/pwm/pwm-bcm-kona.c
index 022c078aae84..ecfa3e3707f4 100644
--- a/drivers/pwm/pwm-bcm-kona.c
+++ b/drivers/pwm/pwm-bcm-kona.c
@@ -319,7 +319,7 @@ static int kona_pwmc_probe(struct platform_device *pdev)
 
 static const struct of_device_id bcm_kona_pwmc_dt[] = {
 	{ .compatible = "brcm,kona-pwm" },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, bcm_kona_pwmc_dt);
 
diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c
index 532903da521f..a4fbf9cfc6f7 100644
--- a/drivers/pwm/pwm-bcm2835.c
+++ b/drivers/pwm/pwm-bcm2835.c
@@ -165,7 +165,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(bcm2835_pwm_pm_ops, bcm2835_pwm_suspend,
 				bcm2835_pwm_resume);
 
 static const struct of_device_id bcm2835_pwm_of_match[] = {
-	{ .compatible = "brcm,bcm2835-pwm", },
+	{ .compatible = "brcm,bcm2835-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, bcm2835_pwm_of_match);
diff --git a/drivers/pwm/pwm-berlin.c b/drivers/pwm/pwm-berlin.c
index da9954818302..d36a245b6b4f 100644
--- a/drivers/pwm/pwm-berlin.c
+++ b/drivers/pwm/pwm-berlin.c
@@ -190,7 +190,7 @@ static const struct pwm_ops berlin_pwm_ops = {
 
 static const struct of_device_id berlin_pwm_match[] = {
 	{ .compatible = "marvell,berlin-pwm" },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, berlin_pwm_match);
 
diff --git a/drivers/pwm/pwm-brcmstb.c b/drivers/pwm/pwm-brcmstb.c
index 82d27d07ba91..790ef7ffbbe5 100644
--- a/drivers/pwm/pwm-brcmstb.c
+++ b/drivers/pwm/pwm-brcmstb.c
@@ -222,7 +222,7 @@ static const struct pwm_ops brcmstb_pwm_ops = {
 };
 
 static const struct of_device_id brcmstb_pwm_of_match[] = {
-	{ .compatible = "brcm,bcm7038-pwm", },
+	{ .compatible = "brcm,bcm7038-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, brcmstb_pwm_of_match);
diff --git a/drivers/pwm/pwm-clk.c b/drivers/pwm/pwm-clk.c
index f8f5af57acba..1907f2f10e5c 100644
--- a/drivers/pwm/pwm-clk.c
+++ b/drivers/pwm/pwm-clk.c
@@ -119,7 +119,7 @@ static void pwm_clk_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id pwm_clk_dt_ids[] = {
-	{ .compatible = "clk-pwm", },
+	{ .compatible = "clk-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, pwm_clk_dt_ids);
diff --git a/drivers/pwm/pwm-clps711x.c b/drivers/pwm/pwm-clps711x.c
index 2c92ce754872..1ce12ee0329b 100644
--- a/drivers/pwm/pwm-clps711x.c
+++ b/drivers/pwm/pwm-clps711x.c
@@ -91,7 +91,7 @@ static int clps711x_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id clps711x_pwm_dt_ids[] = {
-	{ .compatible = "cirrus,ep7209-pwm", },
+	{ .compatible = "cirrus,ep7209-pwm" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, clps711x_pwm_dt_ids);
diff --git a/drivers/pwm/pwm-cros-ec.c b/drivers/pwm/pwm-cros-ec.c
index 67cfa17f58e0..08a24a45c76d 100644
--- a/drivers/pwm/pwm-cros-ec.c
+++ b/drivers/pwm/pwm-cros-ec.c
@@ -267,7 +267,7 @@ static int cros_ec_pwm_probe(struct platform_device *pdev)
 static const struct of_device_id cros_ec_pwm_of_match[] = {
 	{ .compatible = "google,cros-ec-pwm" },
 	{ .compatible = "google,cros-ec-pwm-type" },
-	{},
+	{ }
 };
 MODULE_DEVICE_TABLE(of, cros_ec_pwm_of_match);
 #endif
diff --git a/drivers/pwm/pwm-hibvt.c b/drivers/pwm/pwm-hibvt.c
index e02ee6383dbc..29ad8d0b5536 100644
--- a/drivers/pwm/pwm-hibvt.c
+++ b/drivers/pwm/pwm-hibvt.c
@@ -266,7 +266,7 @@ static const struct of_device_id hibvt_pwm_of_match[] = {
 	  .data = &hi3559v100_shub_soc_info },
 	{ .compatible = "hisilicon,hi3559v100-pwm",
 	  .data = &hi3559v100_soc_info },
-	{  }
+	{ }
 };
 MODULE_DEVICE_TABLE(of, hibvt_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-imx-tpm.c b/drivers/pwm/pwm-imx-tpm.c
index 80fdb3303400..c20753a36d6d 100644
--- a/drivers/pwm/pwm-imx-tpm.c
+++ b/drivers/pwm/pwm-imx-tpm.c
@@ -442,7 +442,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(imx_tpm_pwm_pm,
 				pwm_imx_tpm_suspend, pwm_imx_tpm_resume);
 
 static const struct of_device_id imx_tpm_pwm_dt_ids[] = {
-	{ .compatible = "fsl,imx7ulp-pwm", },
+	{ .compatible = "fsl,imx7ulp-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_tpm_pwm_dt_ids);
diff --git a/drivers/pwm/pwm-imx1.c b/drivers/pwm/pwm-imx1.c
index d5535d208005..075d46180dff 100644
--- a/drivers/pwm/pwm-imx1.c
+++ b/drivers/pwm/pwm-imx1.c
@@ -151,7 +151,7 @@ static const struct pwm_ops pwm_imx1_ops = {
 };
 
 static const struct of_device_id pwm_imx1_dt_ids[] = {
-	{ .compatible = "fsl,imx1-pwm", },
+	{ .compatible = "fsl,imx1-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, pwm_imx1_dt_ids);
diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index c8b801fcb525..7c1ad15008d2 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -378,7 +378,7 @@ static const struct pwm_ops pwm_imx27_ops = {
 };
 
 static const struct of_device_id pwm_imx27_dt_ids[] = {
-	{ .compatible = "fsl,imx27-pwm", },
+	{ .compatible = "fsl,imx27-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, pwm_imx27_dt_ids);
diff --git a/drivers/pwm/pwm-ipq.c b/drivers/pwm/pwm-ipq.c
index c53373948136..6b7aec566f7e 100644
--- a/drivers/pwm/pwm-ipq.c
+++ b/drivers/pwm/pwm-ipq.c
@@ -245,8 +245,8 @@ static int ipq_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id pwm_ipq_dt_match[] = {
-	{ .compatible = "qcom,ipq6018-pwm", },
-	{}
+	{ .compatible = "qcom,ipq6018-pwm" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, pwm_ipq_dt_match);
 
diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index e0b5966fc7fe..0db1474c7c8c 100644
--- a/drivers/pwm/pwm-jz4740.c
+++ b/drivers/pwm/pwm-jz4740.c
@@ -261,7 +261,7 @@ static const struct of_device_id jz4740_pwm_dt_ids[] = {
 	{ .compatible = "ingenic,jz4740-pwm", .data = &jz4740_soc_info },
 	{ .compatible = "ingenic,jz4725b-pwm", .data = &jz4725b_soc_info },
 	{ .compatible = "ingenic,x1000-pwm", .data = &x1000_soc_info },
-	{},
+	{ }
 };
 MODULE_DEVICE_TABLE(of, jz4740_pwm_dt_ids);
 
diff --git a/drivers/pwm/pwm-loongson.c b/drivers/pwm/pwm-loongson.c
index 31a57edecfd0..f2fb35b7af2b 100644
--- a/drivers/pwm/pwm-loongson.c
+++ b/drivers/pwm/pwm-loongson.c
@@ -269,7 +269,7 @@ static const struct of_device_id pwm_loongson_of_ids[] = {
 MODULE_DEVICE_TABLE(of, pwm_loongson_of_ids);
 
 static const struct acpi_device_id pwm_loongson_acpi_ids[] = {
-	{ "LOON0006" },
+	{ .id = "LOON0006" },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, pwm_loongson_acpi_ids);
diff --git a/drivers/pwm/pwm-lp3943.c b/drivers/pwm/pwm-lp3943.c
index 90b0733c00c1..10537e74be28 100644
--- a/drivers/pwm/pwm-lp3943.c
+++ b/drivers/pwm/pwm-lp3943.c
@@ -296,7 +296,7 @@ static int lp3943_pwm_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_OF
 static const struct of_device_id lp3943_pwm_of_match[] = {
-	{ .compatible = "ti,lp3943-pwm", },
+	{ .compatible = "ti,lp3943-pwm" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, lp3943_pwm_of_match);
diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c
index 01d471725106..59e9b58a31bc 100644
--- a/drivers/pwm/pwm-lpc18xx-sct.c
+++ b/drivers/pwm/pwm-lpc18xx-sct.c
@@ -329,7 +329,7 @@ static const struct pwm_ops lpc18xx_pwm_ops = {
 
 static const struct of_device_id lpc18xx_pwm_of_match[] = {
 	{ .compatible = "nxp,lpc1850-sct-pwm" },
-	{}
+	{ }
 };
 MODULE_DEVICE_TABLE(of, lpc18xx_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index c748537e57d1..19ec53648f40 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -155,7 +155,7 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id lpc32xx_pwm_dt_ids[] = {
-	{ .compatible = "nxp,lpc3220-pwm", },
+	{ .compatible = "nxp,lpc3220-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, lpc32xx_pwm_dt_ids);
diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c
index 3a0fd6593520..bcbfda1a6624 100644
--- a/drivers/pwm/pwm-lpss-pci.c
+++ b/drivers/pwm/pwm-lpss-pci.c
@@ -57,7 +57,7 @@ static const struct pci_device_id pwm_lpss_pci_ids[] = {
 	{ PCI_VDEVICE(INTEL, 0x2289), .driver_data = (unsigned long)&pwm_lpss_bsw_info },
 	{ PCI_VDEVICE(INTEL, 0x31c8), .driver_data = (unsigned long)&pwm_lpss_bxt_info },
 	{ PCI_VDEVICE(INTEL, 0x5ac8), .driver_data = (unsigned long)&pwm_lpss_bxt_info },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(pci, pwm_lpss_pci_ids);
 
diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c
index 8b95064b8703..489ca0c09c04 100644
--- a/drivers/pwm/pwm-lpss-platform.c
+++ b/drivers/pwm/pwm-lpss-platform.c
@@ -58,11 +58,11 @@ static int pwm_lpss_probe_platform(struct platform_device *pdev)
 }
 
 static const struct acpi_device_id pwm_lpss_acpi_match[] = {
-	{ "80860F09", (unsigned long)&pwm_lpss_byt_info },
-	{ "80862288", (unsigned long)&pwm_lpss_bsw_info },
-	{ "80862289", (unsigned long)&pwm_lpss_bsw_info },
-	{ "80865AC8", (unsigned long)&pwm_lpss_bxt_info },
-	{ },
+	{ .id = "80860F09", .driver_data = (unsigned long)&pwm_lpss_byt_info },
+	{ .id = "80862288", .driver_data = (unsigned long)&pwm_lpss_bsw_info },
+	{ .id = "80862289", .driver_data = (unsigned long)&pwm_lpss_bsw_info },
+	{ .id = "80865AC8", .driver_data = (unsigned long)&pwm_lpss_bxt_info },
+	{ }
 };
 MODULE_DEVICE_TABLE(acpi, pwm_lpss_acpi_match);
 
diff --git a/drivers/pwm/pwm-mc33xs2410.c b/drivers/pwm/pwm-mc33xs2410.c
index 6d99e3ff7239..9f89b60dda78 100644
--- a/drivers/pwm/pwm-mc33xs2410.c
+++ b/drivers/pwm/pwm-mc33xs2410.c
@@ -381,7 +381,7 @@ static int mc33xs2410_probe(struct spi_device *spi)
 }
 
 static const struct spi_device_id mc33xs2410_spi_id[] = {
-	{ "mc33xs2410" },
+	{ .name = "mc33xs2410" },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, mc33xs2410_spi_id);
diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c
index 992137a27750..0bb49be657b7 100644
--- a/drivers/pwm/pwm-mediatek.c
+++ b/drivers/pwm/pwm-mediatek.c
@@ -627,7 +627,7 @@ static const struct of_device_id pwm_mediatek_of_match[] = {
 	{ .compatible = "mediatek,mt8183-pwm", .data = &mt8183_pwm_data },
 	{ .compatible = "mediatek,mt8365-pwm", .data = &mt8365_pwm_data },
 	{ .compatible = "mediatek,mt8516-pwm", .data = &mt8516_pwm_data },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, pwm_mediatek_of_match);
 
diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index 8c6bf3d49753..20e6cd07127c 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -596,15 +596,14 @@ static const struct of_device_id meson_pwm_matches[] = {
 	{
 		.compatible = "amlogic,meson8-pwm-v2",
 		.data = &pwm_meson8_v2_data
-	},
-	{
+	}, {
 		.compatible = "amlogic,meson-axg-pwm-v2",
 		.data = &pwm_meson_axg_v2_data
-	},
-	{
+	}, {
 		.compatible = "amlogic,meson-g12-pwm-v2",
 		.data = &pwm_meson_axg_v2_data
 	},
+
 	/* The following compatibles are obsolete */
 	{
 		.compatible = "amlogic,meson8b-pwm",
@@ -642,7 +641,7 @@ static const struct of_device_id meson_pwm_matches[] = {
 		.compatible = "amlogic,meson-s4-pwm",
 		.data = &pwm_s4_data
 	},
-	{},
+	{ }
 };
 MODULE_DEVICE_TABLE(of, meson_pwm_matches);
 
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index bafd6b6195f6..b5409e15dac8 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -295,10 +295,10 @@ static const struct mtk_pwm_data mt8183_pwm_data = {
 };
 
 static const struct of_device_id mtk_disp_pwm_of_match[] = {
-	{ .compatible = "mediatek,mt2701-disp-pwm", .data = &mt2701_pwm_data},
-	{ .compatible = "mediatek,mt6595-disp-pwm", .data = &mt8173_pwm_data},
-	{ .compatible = "mediatek,mt8173-disp-pwm", .data = &mt8173_pwm_data},
-	{ .compatible = "mediatek,mt8183-disp-pwm", .data = &mt8183_pwm_data},
+	{ .compatible = "mediatek,mt2701-disp-pwm", .data = &mt2701_pwm_data },
+	{ .compatible = "mediatek,mt6595-disp-pwm", .data = &mt8173_pwm_data },
+	{ .compatible = "mediatek,mt8173-disp-pwm", .data = &mt8173_pwm_data },
+	{ .compatible = "mediatek,mt8183-disp-pwm", .data = &mt8183_pwm_data },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mtk_disp_pwm_of_match);
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 8cad214b1c29..e1a3df6549fc 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -163,7 +163,7 @@ static int mxs_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id mxs_pwm_dt_ids[] = {
-	{ .compatible = "fsl,imx23-pwm", },
+	{ .compatible = "fsl,imx23-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, mxs_pwm_dt_ids);
diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
index 1858a77401f8..51830a87275c 100644
--- a/drivers/pwm/pwm-omap-dmtimer.c
+++ b/drivers/pwm/pwm-omap-dmtimer.c
@@ -444,8 +444,8 @@ static void pwm_omap_dmtimer_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id pwm_omap_dmtimer_of_match[] = {
-	{.compatible = "ti,omap-dmtimer-pwm"},
-	{}
+	{ .compatible = "ti,omap-dmtimer-pwm" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, pwm_omap_dmtimer_of_match);
 
diff --git a/drivers/pwm/pwm-pca9685.c b/drivers/pwm/pwm-pca9685.c
index a02255a64ea8..a2792b803643 100644
--- a/drivers/pwm/pwm-pca9685.c
+++ b/drivers/pwm/pwm-pca9685.c
@@ -544,13 +544,13 @@ static const struct i2c_device_id pca9685_id[] = {
 MODULE_DEVICE_TABLE(i2c, pca9685_id);
 
 static const struct acpi_device_id pca9685_acpi_ids[] = {
-	{ "INT3492", 0 },
-	{ /* sentinel */ },
+	{ .id = "INT3492" },
+	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(acpi, pca9685_acpi_ids);
 
 static const struct of_device_id pca9685_dt_ids[] = {
-	{ .compatible = "nxp,pca9685-pwm", },
+	{ .compatible = "nxp,pca9685-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, pca9685_dt_ids);
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c
index 156c0c74cd80..5f06088f82d4 100644
--- a/drivers/pwm/pwm-pxa.c
+++ b/drivers/pwm/pwm-pxa.c
@@ -31,12 +31,12 @@
 #define HAS_SECONDARY_PWM	0x10
 
 static const struct platform_device_id pwm_id_table[] = {
-	/*   PWM    has_secondary_pwm? */
-	{ "pxa25x-pwm", 0 },
-	{ "pxa27x-pwm", HAS_SECONDARY_PWM },
-	{ "pxa168-pwm", 0 },
-	{ "pxa910-pwm", 0 },
-	{ },
+	/*             PWM            has_secondary_pwm? */
+	{ .name = "pxa25x-pwm", .driver_data = 0 },
+	{ .name = "pxa27x-pwm", .driver_data = HAS_SECONDARY_PWM },
+	{ .name = "pxa168-pwm", .driver_data = 0 },
+	{ .name = "pxa910-pwm", .driver_data = 0 },
+	{ }
 };
 MODULE_DEVICE_TABLE(platform, pwm_id_table);
 
@@ -136,7 +136,6 @@ static const struct pwm_ops pxa_pwm_ops = {
 	.apply = pxa_pwm_apply,
 };
 
-#ifdef CONFIG_OF
 /*
  * Device tree users must create one device instance for each PWM channel.
  * Hence we dispense with the HAS_SECONDARY_PWM and "tell" the original driver
@@ -144,16 +143,13 @@ static const struct pwm_ops pxa_pwm_ops = {
  * supported identically.
  */
 static const struct of_device_id pwm_of_match[] = {
-	{ .compatible = "marvell,pxa250-pwm", .data = &pwm_id_table[0]},
-	{ .compatible = "marvell,pxa270-pwm", .data = &pwm_id_table[0]},
-	{ .compatible = "marvell,pxa168-pwm", .data = &pwm_id_table[0]},
-	{ .compatible = "marvell,pxa910-pwm", .data = &pwm_id_table[0]},
+	{ .compatible = "marvell,pxa250-pwm", .data = &pwm_id_table[0] },
+	{ .compatible = "marvell,pxa270-pwm", .data = &pwm_id_table[0] },
+	{ .compatible = "marvell,pxa168-pwm", .data = &pwm_id_table[0] },
+	{ .compatible = "marvell,pxa910-pwm", .data = &pwm_id_table[0] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, pwm_of_match);
-#else
-#define pwm_of_match NULL
-#endif
 
 static int pwm_probe(struct platform_device *pdev)
 {
@@ -165,7 +161,7 @@ static int pwm_probe(struct platform_device *pdev)
 	struct reset_control *rst;
 	int ret = 0;
 
-	if (IS_ENABLED(CONFIG_OF) && id == NULL)
+	if (id == NULL)
 		id = of_device_get_match_data(dev);
 
 	if (id == NULL)
@@ -191,9 +187,7 @@ static int pwm_probe(struct platform_device *pdev)
 		return PTR_ERR(rst);
 
 	chip->ops = &pxa_pwm_ops;
-
-	if (IS_ENABLED(CONFIG_OF))
-		chip->of_xlate = of_pwm_single_xlate;
+	chip->of_xlate = of_pwm_single_xlate;
 
 	pc->mmio_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pc->mmio_base))
diff --git a/drivers/pwm/pwm-raspberrypi-poe.c b/drivers/pwm/pwm-raspberrypi-poe.c
index 8921e7ea2cea..7cea6561c730 100644
--- a/drivers/pwm/pwm-raspberrypi-poe.c
+++ b/drivers/pwm/pwm-raspberrypi-poe.c
@@ -177,7 +177,7 @@ static int raspberrypi_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id raspberrypi_pwm_of_match[] = {
-	{ .compatible = "raspberrypi,firmware-poe-pwm", },
+	{ .compatible = "raspberrypi,firmware-poe-pwm" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, raspberrypi_pwm_of_match);
diff --git a/drivers/pwm/pwm-rcar.c b/drivers/pwm/pwm-rcar.c
index 578dbdd2d5a7..1733cd700693 100644
--- a/drivers/pwm/pwm-rcar.c
+++ b/drivers/pwm/pwm-rcar.c
@@ -248,8 +248,8 @@ static void rcar_pwm_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id rcar_pwm_of_table[] = {
-	{ .compatible = "renesas,pwm-rcar", },
-	{ },
+	{ .compatible = "renesas,pwm-rcar" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, rcar_pwm_of_table);
 
diff --git a/drivers/pwm/pwm-renesas-tpu.c b/drivers/pwm/pwm-renesas-tpu.c
index 2196080b4177..140fd0bcb93f 100644
--- a/drivers/pwm/pwm-renesas-tpu.c
+++ b/drivers/pwm/pwm-renesas-tpu.c
@@ -479,11 +479,11 @@ static int tpu_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_OF
 static const struct of_device_id tpu_of_table[] = {
-	{ .compatible = "renesas,tpu-r8a73a4", },
-	{ .compatible = "renesas,tpu-r8a7740", },
-	{ .compatible = "renesas,tpu-r8a7790", },
-	{ .compatible = "renesas,tpu", },
-	{ },
+	{ .compatible = "renesas,tpu-r8a73a4" },
+	{ .compatible = "renesas,tpu-r8a7740" },
+	{ .compatible = "renesas,tpu-r8a7790" },
+	{ .compatible = "renesas,tpu" },
+	{ }
 };
 
 MODULE_DEVICE_TABLE(of, tpu_of_table);
diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 67b85bdb491b..050ca8aad0ca 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -292,10 +292,10 @@ static const struct rockchip_pwm_data pwm_data_v3 = {
 };
 
 static const struct of_device_id rockchip_pwm_dt_ids[] = {
-	{ .compatible = "rockchip,rk2928-pwm", .data = &pwm_data_v1},
-	{ .compatible = "rockchip,rk3288-pwm", .data = &pwm_data_v2},
-	{ .compatible = "rockchip,vop-pwm", .data = &pwm_data_vop},
-	{ .compatible = "rockchip,rk3328-pwm", .data = &pwm_data_v3},
+	{ .compatible = "rockchip,rk2928-pwm", .data = &pwm_data_v1 },
+	{ .compatible = "rockchip,rk3288-pwm", .data = &pwm_data_v2 },
+	{ .compatible = "rockchip,vop-pwm", .data = &pwm_data_vop },
+	{ .compatible = "rockchip,rk3328-pwm", .data = &pwm_data_v3 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, rockchip_pwm_dt_ids);
diff --git a/drivers/pwm/pwm-rzg2l-gpt.c b/drivers/pwm/pwm-rzg2l-gpt.c
index dfa1d11a48a8..1569f3ba8c53 100644
--- a/drivers/pwm/pwm-rzg2l-gpt.c
+++ b/drivers/pwm/pwm-rzg2l-gpt.c
@@ -118,8 +118,7 @@ static void rzg2l_gpt_modify(struct rzg2l_gpt_chip *rzg2l_gpt, u32 reg, u32 clr,
 			(rzg2l_gpt_read(rzg2l_gpt, reg) & ~clr) | set);
 }
 
-static u8 rzg2l_gpt_calculate_prescale(struct rzg2l_gpt_chip *rzg2l_gpt,
-				       u64 period_ticks)
+static u8 rzg2l_gpt_calculate_prescale(u64 period_ticks)
 {
 	u32 prescaled_period_ticks;
 	u8 prescale;
@@ -286,7 +285,7 @@ static int rzg2l_gpt_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		}
 	}
 
-	prescale = rzg2l_gpt_calculate_prescale(rzg2l_gpt, period_ticks);
+	prescale = rzg2l_gpt_calculate_prescale(period_ticks);
 	pv = rzg2l_gpt_calculate_pv_or_dc(period_ticks, prescale);
 
 	duty_ticks = mul_u64_u64_div_u64(state->duty_cycle, rzg2l_gpt->rate_khz, USEC_PER_SEC);
@@ -437,7 +436,7 @@ static int rzg2l_gpt_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id rzg2l_gpt_of_table[] = {
-	{ .compatible = "renesas,rzg2l-gpt", },
+	{ .compatible = "renesas,rzg2l-gpt" },
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, rzg2l_gpt_of_table);
diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index 14fb460a4565..a30bd7c305ee 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -501,7 +501,7 @@ static const struct of_device_id samsung_pwm_matches[] = {
 	{ .compatible = "samsung,s5p6440-pwm", .data = &s5p64x0_variant },
 	{ .compatible = "samsung,s5pc100-pwm", .data = &s5pc100_variant },
 	{ .compatible = "samsung,exynos4210-pwm", .data = &s5p64x0_variant },
-	{},
+	{ }
 };
 MODULE_DEVICE_TABLE(of, samsung_pwm_matches);
 
diff --git a/drivers/pwm/pwm-sifive.c b/drivers/pwm/pwm-sifive.c
index e11ecf1fa0f9..4d0e4512d8a5 100644
--- a/drivers/pwm/pwm-sifive.c
+++ b/drivers/pwm/pwm-sifive.c
@@ -355,7 +355,7 @@ static void pwm_sifive_remove(struct platform_device *dev)
 
 static const struct of_device_id pwm_sifive_of_match[] = {
 	{ .compatible = "sifive,pwm0" },
-	{},
+	{ }
 };
 MODULE_DEVICE_TABLE(of, pwm_sifive_of_match);
 
diff --git a/drivers/pwm/pwm-sl28cpld.c b/drivers/pwm/pwm-sl28cpld.c
index 0dc2e3f809c3..0e25a05ea538 100644
--- a/drivers/pwm/pwm-sl28cpld.c
+++ b/drivers/pwm/pwm-sl28cpld.c
@@ -244,7 +244,7 @@ static int sl28cpld_pwm_probe(struct platform_device *pdev)
 
 static const struct of_device_id sl28cpld_pwm_of_match[] = {
 	{ .compatible = "kontron,sl28cpld-pwm" },
-	{}
+	{ }
 };
 MODULE_DEVICE_TABLE(of, sl28cpld_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-sophgo-sg2042.c b/drivers/pwm/pwm-sophgo-sg2042.c
index 7d07b0ca7d29..0b6461172e6a 100644
--- a/drivers/pwm/pwm-sophgo-sg2042.c
+++ b/drivers/pwm/pwm-sophgo-sg2042.c
@@ -225,11 +225,10 @@ static const struct sg2042_chip_data sg2044_chip_data = {
 static const struct of_device_id sg2042_pwm_ids[] = {
 	{
 		.compatible = "sophgo,sg2042-pwm",
-		.data = &sg2042_chip_data
-	},
-	{
+		.data = &sg2042_chip_data,
+	}, {
 		.compatible = "sophgo,sg2044-pwm",
-		.data = &sg2044_chip_data
+		.data = &sg2044_chip_data,
 	},
 	{ }
 };
diff --git a/drivers/pwm/pwm-sprd.c b/drivers/pwm/pwm-sprd.c
index 438dbaa3a98f..51cab6a54fe2 100644
--- a/drivers/pwm/pwm-sprd.c
+++ b/drivers/pwm/pwm-sprd.c
@@ -276,8 +276,8 @@ static int sprd_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id sprd_pwm_of_match[] = {
-	{ .compatible = "sprd,ums512-pwm", },
-	{ },
+	{ .compatible = "sprd,ums512-pwm" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, sprd_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c
index 3b702b8f0c7f..e5c3cf594571 100644
--- a/drivers/pwm/pwm-sti.c
+++ b/drivers/pwm/pwm-sti.c
@@ -625,7 +625,7 @@ static int sti_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id sti_pwm_of_match[] = {
-	{ .compatible = "st,sti-pwm", },
+	{ .compatible = "st,sti-pwm" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sti_pwm_of_match);
diff --git a/drivers/pwm/pwm-stm32-lp.c b/drivers/pwm/pwm-stm32-lp.c
index 4789eafb8bac..2aa88f4985f5 100644
--- a/drivers/pwm/pwm-stm32-lp.c
+++ b/drivers/pwm/pwm-stm32-lp.c
@@ -412,8 +412,8 @@ static DEFINE_SIMPLE_DEV_PM_OPS(stm32_pwm_lp_pm_ops, stm32_pwm_lp_suspend,
 				stm32_pwm_lp_resume);
 
 static const struct of_device_id stm32_pwm_lp_of_match[] = {
-	{ .compatible = "st,stm32-pwm-lp", },
-	{},
+	{ .compatible = "st,stm32-pwm-lp" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, stm32_pwm_lp_of_match);
 
diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index c708e4a7ad70..ea5a51a2800f 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -918,9 +918,9 @@ static int stm32_pwm_resume(struct device *dev)
 static DEFINE_SIMPLE_DEV_PM_OPS(stm32_pwm_pm_ops, stm32_pwm_suspend, stm32_pwm_resume);
 
 static const struct of_device_id stm32_pwm_of_match[] = {
-	{ .compatible = "st,stm32-pwm",	},
-	{ .compatible = "st,stm32mp25-pwm", },
-	{ /* end node */ },
+	{ .compatible = "st,stm32-pwm" },
+	{ .compatible = "st,stm32mp25-pwm" },
+	{ /* end node */ }
 };
 MODULE_DEVICE_TABLE(of, stm32_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 6c5591ca868b..0752152b1470 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -369,7 +369,7 @@ static const struct of_device_id sun4i_pwm_dt_ids[] = {
 		.data = &sun50i_h6_pwm_data,
 	}, {
 		/* sentinel */
-	},
+	}
 };
 MODULE_DEVICE_TABLE(of, sun4i_pwm_dt_ids);
 
diff --git a/drivers/pwm/pwm-sunplus.c b/drivers/pwm/pwm-sunplus.c
index cc8137f108df..4c4a4b0f5f18 100644
--- a/drivers/pwm/pwm-sunplus.c
+++ b/drivers/pwm/pwm-sunplus.c
@@ -213,8 +213,8 @@ static int sunplus_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id sunplus_pwm_of_match[] = {
-	{ .compatible = "sunplus,sp7021-pwm", },
-	{}
+	{ .compatible = "sunplus,sp7021-pwm" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, sunplus_pwm_of_match);
 
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 172063b51d44..5cdbe120ba2d 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -7,23 +7,62 @@
  * Copyright (c) 2010-2020, NVIDIA Corporation.
  * Based on arch/arm/plat-mxc/pwm.c by Sascha Hauer <s.hauer@pengutronix.de>
  *
- * Overview of Tegra Pulse Width Modulator Register:
- * 1. 13-bit: Frequency division (SCALE)
- * 2. 8-bit : Pulse division (DUTY)
- * 3. 1-bit : Enable bit
+ * Overview of Tegra Pulse Width Modulator Register
+ * CSR_0 of Tegra20, Tegra186, and Tegra194:
+ * +-------+-------+-----------------------------------------------------------+
+ * | Bit   | Field | Description                                               |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 31    | ENB   | Enable Pulse width modulator.                             |
+ * |       |       | 0 = DISABLE, 1 = ENABLE.                                  |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 30:16 | PWM_0 | Pulse width that needs to be programmed.                  |
+ * |       |       | 0 = Always low.                                           |
+ * |       |       | 1 = 1 / 256 pulse high.                                   |
+ * |       |       | 2 = 2 / 256 pulse high.                                   |
+ * |       |       | N = N / 256 pulse high.                                   |
+ * |       |       | Only 8 bits are usable [23:16].                           |
+ * |       |       | Bit[24] can be programmed to 1 to achieve 100% duty       |
+ * |       |       | cycle. In this case the other bits [23:16] are set to     |
+ * |       |       | don’t care.                                               |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 12:0  | PFM_0 | Frequency divider that needs to be programmed, also known |
+ * |       |       | as SCALE. Division by (1 + PFM_0).                        |
+ * +-------+-------+-----------------------------------------------------------+
  *
- * The PWM clock frequency is divided by 256 before subdividing it based
- * on the programmable frequency division value to generate the required
- * frequency for PWM output. The maximum output frequency that can be
- * achieved is (max rate of source clock) / 256.
- * e.g. if source clock rate is 408 MHz, maximum output frequency can be:
- * 408 MHz/256 = 1.6 MHz.
+ * CSR_0 of Tegra264:
+ * +-------+-------+-----------------------------------------------------------+
+ * | Bit   | Field | Description                                               |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 31:16 | PWM_0 | Pulse width that needs to be programmed.                  |
+ * |       |       | 0 = Always low.                                           |
+ * |       |       | 1 = 1 / (1 + CSR_1.DEPTH) pulse high.                     |
+ * |       |       | 2 = 2 / (1 + CSR_1.DEPTH) pulse high.                     |
+ * |       |       | N = N / (1 + CSR_1.DEPTH) pulse high.                     |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 15:0  | PFM_0 | Frequency divider that needs to be programmed, also known |
+ * |       |       | as SCALE. Division by (1 + PFM_0).                        |
+ * +-------+-------+-----------------------------------------------------------+
+ *
+ * CSR_1 of Tegra264:
+ * +-------+-------+-----------------------------------------------------------+
+ * | Bit   | Field | Description                                               |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 31    | ENB   | Enable Pulse width modulator.                             |
+ * |       |       | 0 = DISABLE, 1 = ENABLE.                                  |
+ * +-------+-------+-----------------------------------------------------------+
+ * | 30:15 | DEPTH | Depth for pulse width modulator. This controls the pulse  |
+ * |       |       | time generated. Division by (1 + CSR_1.DEPTH).            |
+ * +-------+-------+-----------------------------------------------------------+
+ *
+ * The PWM clock frequency is divided by DEPTH = (1 + CSR_1.DEPTH) before
+ * subdividing it based on the programmable frequency division value to
+ * generate the required frequency for PWM output. DEPTH is fixed to 256
+ * before Tegra264. The maximum output frequency that can be achieved is
+ * (max rate of source clock) / DEPTH.
+ * e.g. if source clock rate is 408 MHz, and DEPTH = 256, maximum output
+ * frequency can be: 408 MHz / 256 ~= 1.6 MHz.
  * This 1.6 MHz frequency can further be divided using SCALE value in PWM.
  *
- * PWM pulse width: 8 bits are usable [23:16] for varying pulse width.
- * To achieve 100% duty cycle, program Bit [24] of this register to
- * 1’b1. In which case the other bits [23:16] are set to don't care.
- *
  * Limitations:
  * -	When PWM is disabled, the output is driven to inactive.
  * -	It does not allow the current PWM period to complete and
@@ -51,17 +90,20 @@
 
 #include <soc/tegra/common.h>
 
-#define PWM_ENABLE	(1 << 31)
-#define PWM_DUTY_WIDTH	8
-#define PWM_DUTY_SHIFT	16
-#define PWM_SCALE_WIDTH	13
-#define PWM_SCALE_SHIFT	0
+#define TEGRA_PWM_ENABLE	(1 << 31)
+#define TEGRA_PWM_DUTY_SHIFT	16
+#define TEGRA_PWM_SCALE_SHIFT	0
+
+#define TEGRA_PWM_CSR_0	0
+#define TEGRA_PWM_CSR_1	4
+
+#define TEGRA_PWM_DEPTH	256
 
 struct tegra_pwm_soc {
 	unsigned int num_channels;
+	unsigned int enable_reg;
 
-	/* Maximum IP frequency for given SoCs */
-	unsigned long max_frequency;
+	unsigned int scale_width;
 };
 
 struct tegra_pwm_chip {
@@ -81,14 +123,18 @@ static inline struct tegra_pwm_chip *to_tegra_pwm_chip(struct pwm_chip *chip)
 	return pwmchip_get_drvdata(chip);
 }
 
-static inline u32 pwm_readl(struct tegra_pwm_chip *pc, unsigned int offset)
+static inline u32 tegra_pwm_readl(struct pwm_device *pwm, unsigned int offset)
 {
-	return readl(pc->regs + (offset << 4));
+	struct tegra_pwm_chip *chip = to_tegra_pwm_chip(pwm->chip);
+
+	return readl(chip->regs + (pwm->hwpwm * 16) + offset);
 }
 
-static inline void pwm_writel(struct tegra_pwm_chip *pc, unsigned int offset, u32 value)
+static inline void tegra_pwm_writel(struct pwm_device *pwm, unsigned int offset, u32 value)
 {
-	writel(value, pc->regs + (offset << 4));
+	struct tegra_pwm_chip *chip = to_tegra_pwm_chip(pwm->chip);
+
+	writel(value, chip->regs + (pwm->hwpwm * 16) + offset);
 }
 
 static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
@@ -102,22 +148,22 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 
 	/*
 	 * Convert from duty_ns / period_ns to a fixed number of duty ticks
-	 * per (1 << PWM_DUTY_WIDTH) cycles and make sure to round to the
+	 * per TEGRA_PWM_DEPTH cycles and make sure to round to the
 	 * nearest integer during division.
 	 */
-	c *= (1 << PWM_DUTY_WIDTH);
+	c *= TEGRA_PWM_DEPTH;
 	c = DIV_ROUND_CLOSEST_ULL(c, period_ns);
 
-	val = (u32)c << PWM_DUTY_SHIFT;
+	val = (u32)c << TEGRA_PWM_DUTY_SHIFT;
 
 	/*
-	 *  min period = max clock limit >> PWM_DUTY_WIDTH
+	 *  min period = max clock limit / TEGRA_PWM_DEPTH
 	 */
 	if (period_ns < pc->min_period_ns)
 		return -EINVAL;
 
 	/*
-	 * Compute the prescaler value for which (1 << PWM_DUTY_WIDTH)
+	 * Compute the prescaler value for which TEGRA_PWM_DEPTH
 	 * cycles at the PWM clock rate will take period_ns nanoseconds.
 	 *
 	 * num_channels: If single instance of PWM controller has multiple
@@ -131,7 +177,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	 */
 	if (pc->soc->num_channels == 1) {
 		/*
-		 * Rate is multiplied with 2^PWM_DUTY_WIDTH so that it matches
+		 * Rate is multiplied with TEGRA_PWM_DEPTH so that it matches
 		 * with the maximum possible rate that the controller can
 		 * provide. Any further lower value can be derived by setting
 		 * PFM bits[0:12].
@@ -141,7 +187,7 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		 * source clock rate as required_clk_rate, PWM controller will
 		 * be able to configure the requested period.
 		 */
-		required_clk_rate = DIV_ROUND_UP_ULL((u64)NSEC_PER_SEC << PWM_DUTY_WIDTH,
+		required_clk_rate = DIV_ROUND_UP_ULL((u64)NSEC_PER_SEC * TEGRA_PWM_DEPTH,
 						     period_ns);
 
 		if (required_clk_rate > clk_round_rate(pc->clk, required_clk_rate))
@@ -163,9 +209,9 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		pc->clk_rate = clk_get_rate(pc->clk);
 	}
 
-	/* Consider precision in PWM_SCALE_WIDTH rate calculation */
+	/* Consider precision in scale_width rate calculation */
 	rate = mul_u64_u64_div_u64(pc->clk_rate, period_ns,
-				   (u64)NSEC_PER_SEC << PWM_DUTY_WIDTH);
+				   (u64)NSEC_PER_SEC * TEGRA_PWM_DEPTH);
 
 	/*
 	 * Since the actual PWM divider is the register's frequency divider
@@ -181,10 +227,10 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	 * Make sure that the rate will fit in the register's frequency
 	 * divider field.
 	 */
-	if (rate >> PWM_SCALE_WIDTH)
+	if (rate >> pc->soc->scale_width)
 		return -EINVAL;
 
-	val |= rate << PWM_SCALE_SHIFT;
+	val |= rate << TEGRA_PWM_SCALE_SHIFT;
 
 	/*
 	 * If the PWM channel is disabled, make sure to turn on the clock
@@ -194,10 +240,11 @@ static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		err = pm_runtime_resume_and_get(pwmchip_parent(chip));
 		if (err)
 			return err;
-	} else
-		val |= PWM_ENABLE;
+	} else if (pc->soc->enable_reg == TEGRA_PWM_CSR_0) {
+		val |= TEGRA_PWM_ENABLE;
+	}
 
-	pwm_writel(pc, pwm->hwpwm, val);
+	tegra_pwm_writel(pwm, TEGRA_PWM_CSR_0, val);
 
 	/*
 	 * If the PWM is not enabled, turn the clock off again to save power.
@@ -218,9 +265,9 @@ static int tegra_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 	if (rc)
 		return rc;
 
-	val = pwm_readl(pc, pwm->hwpwm);
-	val |= PWM_ENABLE;
-	pwm_writel(pc, pwm->hwpwm, val);
+	val = tegra_pwm_readl(pwm, pc->soc->enable_reg);
+	val |= TEGRA_PWM_ENABLE;
+	tegra_pwm_writel(pwm, pc->soc->enable_reg, val);
 
 	return 0;
 }
@@ -230,9 +277,9 @@ static void tegra_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 	struct tegra_pwm_chip *pc = to_tegra_pwm_chip(chip);
 	u32 val;
 
-	val = pwm_readl(pc, pwm->hwpwm);
-	val &= ~PWM_ENABLE;
-	pwm_writel(pc, pwm->hwpwm, val);
+	val = tegra_pwm_readl(pwm, pc->soc->enable_reg);
+	val &= ~TEGRA_PWM_ENABLE;
+	tegra_pwm_writel(pwm, pc->soc->enable_reg, val);
 
 	pm_runtime_put_sync(pwmchip_parent(chip));
 }
@@ -303,7 +350,7 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 		return ret;
 
 	/* Set maximum frequency of the IP */
-	ret = dev_pm_opp_set_rate(&pdev->dev, pc->soc->max_frequency);
+	ret = dev_pm_opp_set_rate(&pdev->dev, ULONG_MAX);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to set max frequency: %d\n", ret);
 		goto put_pm;
@@ -315,10 +362,15 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 	 * so that PWM period can be calculated more accurately.
 	 */
 	pc->clk_rate = clk_get_rate(pc->clk);
+	if (pc->clk_rate < TEGRA_PWM_DEPTH) {
+		dev_err(&pdev->dev, "clock maximum frequency out of range\n");
+		ret = -ERANGE;
+		goto put_pm;
+	}
 
 	/* Set minimum limit of PWM period for the IP */
 	pc->min_period_ns =
-	    (NSEC_PER_SEC / (pc->soc->max_frequency >> PWM_DUTY_WIDTH)) + 1;
+	    (NSEC_PER_SEC / (pc->clk_rate / TEGRA_PWM_DEPTH)) + 1;
 
 	pc->rst = devm_reset_control_get_exclusive(&pdev->dev, "pwm");
 	if (IS_ERR(pc->rst)) {
@@ -397,23 +449,27 @@ static int __maybe_unused tegra_pwm_runtime_resume(struct device *dev)
 
 static const struct tegra_pwm_soc tegra20_pwm_soc = {
 	.num_channels = 4,
-	.max_frequency = 48000000UL,
+	.enable_reg = TEGRA_PWM_CSR_0,
+	.scale_width = 13,
 };
 
 static const struct tegra_pwm_soc tegra186_pwm_soc = {
 	.num_channels = 1,
-	.max_frequency = 102000000UL,
+	.enable_reg = TEGRA_PWM_CSR_0,
+	.scale_width = 13,
 };
 
-static const struct tegra_pwm_soc tegra194_pwm_soc = {
+static const struct tegra_pwm_soc tegra264_pwm_soc = {
 	.num_channels = 1,
-	.max_frequency = 408000000UL,
+	.enable_reg = TEGRA_PWM_CSR_1,
+	.scale_width = 16,
 };
 
 static const struct of_device_id tegra_pwm_of_match[] = {
 	{ .compatible = "nvidia,tegra20-pwm", .data = &tegra20_pwm_soc },
 	{ .compatible = "nvidia,tegra186-pwm", .data = &tegra186_pwm_soc },
-	{ .compatible = "nvidia,tegra194-pwm", .data = &tegra194_pwm_soc },
+	{ .compatible = "nvidia,tegra194-pwm", .data = &tegra186_pwm_soc },
+	{ .compatible = "nvidia,tegra264-pwm", .data = &tegra264_pwm_soc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, tegra_pwm_of_match);
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 67cc5e8bdb0e..3751737ead43 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -211,9 +211,9 @@ static const struct pwm_ops ecap_pwm_ops = {
 };
 
 static const struct of_device_id ecap_of_match[] = {
-	{ .compatible	= "ti,am3352-ecap" },
-	{ .compatible	= "ti,am33xx-ecap" },
-	{},
+	{ .compatible = "ti,am3352-ecap" },
+	{ .compatible = "ti,am33xx-ecap" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, ecap_of_match);
 
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 2533c95b0ba9..3a53489f0b98 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -407,7 +407,7 @@ static const struct pwm_ops ehrpwm_pwm_ops = {
 static const struct of_device_id ehrpwm_of_match[] = {
 	{ .compatible = "ti,am3352-ehrpwm" },
 	{ .compatible = "ti,am33xx-ehrpwm" },
-	{},
+	{ }
 };
 MODULE_DEVICE_TABLE(of, ehrpwm_of_match);
 
diff --git a/drivers/pwm/pwm-twl-led.c b/drivers/pwm/pwm-twl-led.c
index a555cc3be4b3..e1b6871af81e 100644
--- a/drivers/pwm/pwm-twl-led.c
+++ b/drivers/pwm/pwm-twl-led.c
@@ -338,7 +338,7 @@ static int twl_pwmled_probe(struct platform_device *pdev)
 static const struct of_device_id twl_pwmled_of_match[] = {
 	{ .compatible = "ti,twl4030-pwmled" },
 	{ .compatible = "ti,twl6030-pwmled" },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, twl_pwmled_of_match);
 #endif
diff --git a/drivers/pwm/pwm-twl.c b/drivers/pwm/pwm-twl.c
index 8f981ffff4b4..99c1caf4f19c 100644
--- a/drivers/pwm/pwm-twl.c
+++ b/drivers/pwm/pwm-twl.c
@@ -362,7 +362,7 @@ static int twl_pwm_probe(struct platform_device *pdev)
 static const struct of_device_id twl_pwm_of_match[] = {
 	{ .compatible = "ti,twl4030-pwm" },
 	{ .compatible = "ti,twl6030-pwm" },
-	{ },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, twl_pwm_of_match);
 #endif
diff --git a/drivers/pwm/pwm-visconti.c b/drivers/pwm/pwm-visconti.c
index 28fae4979e3f..830aef483bd0 100644
--- a/drivers/pwm/pwm-visconti.c
+++ b/drivers/pwm/pwm-visconti.c
@@ -156,7 +156,7 @@ static int visconti_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id visconti_pwm_of_match[] = {
-	{ .compatible = "toshiba,visconti-pwm", },
+	{ .compatible = "toshiba,visconti-pwm" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, visconti_pwm_of_match);
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index 149d9e35b78c..8013e31b1147 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -226,7 +226,7 @@ static const struct pwm_ops vt8500_pwm_ops = {
 };
 
 static const struct of_device_id vt8500_pwm_dt_ids[] = {
-	{ .compatible = "via,vt8500-pwm", },
+	{ .compatible = "via,vt8500-pwm" },
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, vt8500_pwm_dt_ids);
diff --git a/drivers/pwm/pwm-xilinx.c b/drivers/pwm/pwm-xilinx.c
index 52c241982807..fa2d10e658dd 100644
--- a/drivers/pwm/pwm-xilinx.c
+++ b/drivers/pwm/pwm-xilinx.c
@@ -281,8 +281,8 @@ static int xilinx_pwm_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id xilinx_pwm_of_match[] = {
-	{ .compatible = "xlnx,xps-timer-1.00.a", },
-	{},
+	{ .compatible = "xlnx,xps-timer-1.00.a" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, xilinx_pwm_of_match);
 
diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs
index 3e3fa51ccef9..543bd8dea846 100644
--- a/drivers/pwm/pwm_th1520.rs
+++ b/drivers/pwm/pwm_th1520.rs
@@ -23,15 +23,21 @@
 use core::ops::Deref;
 use kernel::{
     clk::Clk,
-    device::{Bound, Core, Device},
+    device::{
+        Bound,
+        Core,
+        Device, //
+    },
     devres,
     io::{
         mem::IoMem,
         Io, //
     },
-    of, platform,
+    of,
+    platform,
     prelude::*,
-    pwm, time,
+    pwm,
+    time, //
 };
 
 const TH1520_MAX_PWM_NUM: u32 = 6;
diff --git a/rust/kernel/pwm.rs b/rust/kernel/pwm.rs
index 8b3a580b4f0f..8aa47304bec3 100644
--- a/rust/kernel/pwm.rs
+++ b/rust/kernel/pwm.rs
@@ -494,9 +494,7 @@ pub(crate) fn as_raw(&self) -> *const bindings::pwm_ops {
 /// This is used to bridge Rust trait implementations to the C `struct pwm_ops`
 /// expected by the kernel.
 pub const fn create_pwm_ops<T: PwmOps>() -> PwmOpsVTable {
-    // SAFETY: `core::mem::zeroed()` is unsafe. For `pwm_ops`, all fields are
-    // `Option<extern "C" fn(...)>` or data, so a zeroed pattern (None/0) is valid initially.
-    let mut ops: bindings::pwm_ops = unsafe { core::mem::zeroed() };
+    let mut ops: bindings::pwm_ops = pin_init::zeroed();
 
     ops.request = Some(Adapter::<T>::request_callback);
     ops.capture = Some(Adapter::<T>::capture_callback);