Messages in this thread Patch in this message | | | From | Sascha Hauer <> | Subject | [PATCH 5/9] pwm i.MX: add devicetree support | Date | Tue, 28 Aug 2012 13:48:20 +0200 |
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From: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/pwm/pwm-imx.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c index a689144..dfc1bae 100644 --- a/drivers/pwm/pwm-imx.c +++ b/drivers/pwm/pwm-imx.c @@ -16,9 +16,9 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/pwm.h> +#include <linux/of_device.h> #include <mach/hardware.h> - /* i.MX1 and i.MX21 share the same PWM function block: */ #define MX1_PWMC 0x00 /* PWM Control Register */ @@ -203,8 +203,17 @@ static struct pwm_ops imx_pwm_ops = { .owner = THIS_MODULE, }; +static const struct of_device_id imx_pwm_dt_ids[] = { + { .compatible = "fsl,imx1-pwm", .data = &imx_pwm_config_v1, }, + { .compatible = "fsl,imx27-pwm", .data = &imx_pwm_config_v2, }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_pwm_of_match); + static int __devinit imx_pwm_probe(struct platform_device *pdev) { + const struct of_device_id *of_id = + of_match_device(imx_pwm_dt_ids, &pdev->dev); struct imx_chip *imx; struct resource *r; int ret = 0; @@ -235,12 +244,16 @@ static int __devinit imx_pwm_probe(struct platform_device *pdev) if (imx->mmio_base == NULL) return -EADDRNOTAVAIL; - if (cpu_is_mx1() || cpu_is_mx21()) { - imx->config = imx_pwm_config_v1; - imx->set_enable = imx_pwm_set_enable_v1; + if (of_id) { + imx->config = of_id->data; } else { - imx->config = imx_pwm_config_v2; - imx->set_enable = imx_pwm_set_enable_v2; + if (cpu_is_mx1() || cpu_is_mx21()) { + imx->config = imx_pwm_config_v1; + imx->set_enable = imx_pwm_set_enable_v1; + } else { + imx->config = imx_pwm_config_v2; + imx->set_enable = imx_pwm_set_enable_v2; + } } ret = pwmchip_add(&imx->chip); -- 1.7.10.4
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