diff options
| -rw-r--r-- | Documentation/devicetree/bindings/pwm/ingenic,jz47xx-pwm.txt | 25 | ||||
| -rw-r--r-- | drivers/pwm/pwm-jz4740.c | 14 |
2 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/ingenic,jz47xx-pwm.txt b/Documentation/devicetree/bindings/pwm/ingenic,jz47xx-pwm.txt new file mode 100644 index 000000000000..7d9d3f90641b --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/ingenic,jz47xx-pwm.txt @@ -0,0 +1,25 @@ +Ingenic JZ47xx PWM Controller +============================= + +Required properties: +- compatible: One of: + * "ingenic,jz4740-pwm" + * "ingenic,jz4770-pwm" + * "ingenic,jz4780-pwm" +- #pwm-cells: Should be 3. See pwm.txt in this directory for a description + of the cells format. +- clocks : phandle to the external clock. +- clock-names : Should be "ext". + + +Example: + + pwm: pwm@10002000 { + compatible = "ingenic,jz4740-pwm"; + reg = <0x10002000 0x1000>; + + #pwm-cells = <3>; + + clocks = <&ext>; + clock-names = "ext"; + }; diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c index 6539c001fe32..a7b134af5e04 100644 --- a/drivers/pwm/pwm-jz4740.c +++ b/drivers/pwm/pwm-jz4740.c @@ -18,6 +18,7 @@ #include <linux/gpio.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pwm.h> @@ -174,6 +175,8 @@ static int jz4740_pwm_probe(struct platform_device *pdev) jz4740->chip.ops = &jz4740_pwm_ops; jz4740->chip.npwm = NUM_PWM; jz4740->chip.base = -1; + jz4740->chip.of_xlate = of_pwm_xlate_with_flags; + jz4740->chip.of_pwm_n_cells = 3; platform_set_drvdata(pdev, jz4740); @@ -187,9 +190,20 @@ static int jz4740_pwm_remove(struct platform_device *pdev) return pwmchip_remove(&jz4740->chip); } +#ifdef CONFIG_OF +static const struct of_device_id jz4740_pwm_dt_ids[] = { + { .compatible = "ingenic,jz4740-pwm", }, + { .compatible = "ingenic,jz4770-pwm", }, + { .compatible = "ingenic,jz4780-pwm", }, + {}, +}; +MODULE_DEVICE_TABLE(of, jz4740_pwm_dt_ids); +#endif + static struct platform_driver jz4740_pwm_driver = { .driver = { .name = "jz4740-pwm", + .of_match_table = of_match_ptr(jz4740_pwm_dt_ids), }, .probe = jz4740_pwm_probe, .remove = jz4740_pwm_remove, |