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pwm: imx: Add separate set of PWM ops for v1 and v2

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This patch provides separate set of PWM operations utilized by i.MX's
v1 and v2 of the PWM hardware.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Lukasz Majewski 2017-01-29 22:54:07 +01:00 committed by Thierry Reding
parent 9fb27fac39
commit 0038922954
1 changed files with 14 additions and 3 deletions
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17
drivers/pwm/pwm-imx.c
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@ -239,7 +239,14 @@ static void imx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
clk_disable_unprepare(imx->clk_per); clk_disable_unprepare(imx->clk_per);
} }
static const struct pwm_ops imx_pwm_ops = { static const struct pwm_ops imx_pwm_ops_v1 = {
.enable = imx_pwm_enable,
.disable = imx_pwm_disable,
.config = imx_pwm_config,
.owner = THIS_MODULE,
};
static const struct pwm_ops imx_pwm_ops_v2 = {
.enable = imx_pwm_enable, .enable = imx_pwm_enable,
.disable = imx_pwm_disable, .disable = imx_pwm_disable,
.config = imx_pwm_config, .config = imx_pwm_config,
@ -250,16 +257,19 @@ struct imx_pwm_data {
int (*config)(struct pwm_chip *chip, int (*config)(struct pwm_chip *chip,
struct pwm_device *pwm, int duty_ns, int period_ns); struct pwm_device *pwm, int duty_ns, int period_ns);
void (*set_enable)(struct pwm_chip *chip, bool enable); void (*set_enable)(struct pwm_chip *chip, bool enable);
const struct pwm_ops *ops;
}; };
static struct imx_pwm_data imx_pwm_data_v1 = { static struct imx_pwm_data imx_pwm_data_v1 = {
.config = imx_pwm_config_v1, .config = imx_pwm_config_v1,
.set_enable = imx_pwm_set_enable_v1, .set_enable = imx_pwm_set_enable_v1,
.ops = &imx_pwm_ops_v1,
}; };
static struct imx_pwm_data imx_pwm_data_v2 = { static struct imx_pwm_data imx_pwm_data_v2 = {
.config = imx_pwm_config_v2, .config = imx_pwm_config_v2,
.set_enable = imx_pwm_set_enable_v2, .set_enable = imx_pwm_set_enable_v2,
.ops = &imx_pwm_ops_v2,
}; };
static const struct of_device_id imx_pwm_dt_ids[] = { static const struct of_device_id imx_pwm_dt_ids[] = {
@ -281,6 +291,8 @@ static int imx_pwm_probe(struct platform_device *pdev)
if (!of_id) if (!of_id)
return -ENODEV; return -ENODEV;
data = of_id->data;
imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL); imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL);
if (imx == NULL) if (imx == NULL)
return -ENOMEM; return -ENOMEM;
@ -292,7 +304,7 @@ static int imx_pwm_probe(struct platform_device *pdev)
return PTR_ERR(imx->clk_per); return PTR_ERR(imx->clk_per);
} }
imx->chip.ops = &imx_pwm_ops; imx->chip.ops = data->ops;
imx->chip.dev = &pdev->dev; imx->chip.dev = &pdev->dev;
imx->chip.base = -1; imx->chip.base = -1;
imx->chip.npwm = 1; imx->chip.npwm = 1;
@ -303,7 +315,6 @@ static int imx_pwm_probe(struct platform_device *pdev)
if (IS_ERR(imx->mmio_base)) if (IS_ERR(imx->mmio_base))
return PTR_ERR(imx->mmio_base); return PTR_ERR(imx->mmio_base);
data = of_id->data;
imx->config = data->config; imx->config = data->config;
imx->set_enable = data->set_enable; imx->set_enable = data->set_enable;