.free = mvebu_pwm_free,
.get_state = mvebu_pwm_get_state,
.apply = mvebu_pwm_apply,
- .owner = THIS_MODULE,
};
static void __maybe_unused mvebu_pwm_suspend(struct mvebu_gpio_chip *mvchip)
.free = ti_sn_pwm_free,
.apply = ti_sn_pwm_apply,
.get_state = ti_sn_pwm_get_state,
- .owner = THIS_MODULE,
};
static int ti_sn_pwm_probe(struct auxiliary_device *adev,
.request = lpg_pwm_request,
.apply = lpg_pwm_apply,
.get_state = lpg_pwm_get_state,
- .owner = THIS_MODULE,
};
static int lpg_add_pwm(struct lpg *lpg)
if (test_bit(PWMF_REQUESTED, &pwm->flags))
return -EBUSY;
- if (!try_module_get(pwm->chip->ops->owner))
+ if (!try_module_get(pwm->chip->owner))
return -ENODEV;
if (pwm->chip->ops->request) {
err = pwm->chip->ops->request(pwm->chip, pwm);
if (err) {
- module_put(pwm->chip->ops->owner);
+ module_put(pwm->chip->owner);
return err;
}
}
}
/**
- * pwmchip_add() - register a new PWM chip
+ * __pwmchip_add() - register a new PWM chip
* @chip: the PWM chip to add
+ * @owner: reference to the module providing the chip.
*
- * Register a new PWM chip.
+ * Register a new PWM chip. @owner is supposed to be THIS_MODULE, use the
+ * pwmchip_add wrapper to do this right.
*
* Returns: 0 on success or a negative error code on failure.
*/
-int pwmchip_add(struct pwm_chip *chip)
+int __pwmchip_add(struct pwm_chip *chip, struct module *owner)
{
struct pwm_device *pwm;
unsigned int i;
if (!pwm_ops_check(chip))
return -EINVAL;
+ chip->owner = owner;
+
chip->pwms = kcalloc(chip->npwm, sizeof(*pwm), GFP_KERNEL);
if (!chip->pwms)
return -ENOMEM;
return 0;
}
-EXPORT_SYMBOL_GPL(pwmchip_add);
+EXPORT_SYMBOL_GPL(__pwmchip_add);
/**
* pwmchip_remove() - remove a PWM chip
pwmchip_remove(chip);
}
-int devm_pwmchip_add(struct device *dev, struct pwm_chip *chip)
+int __devm_pwmchip_add(struct device *dev, struct pwm_chip *chip, struct module *owner)
{
int ret;
- ret = pwmchip_add(chip);
+ ret = __pwmchip_add(chip, owner);
if (ret)
return ret;
return devm_add_action_or_reset(dev, devm_pwmchip_remove, chip);
}
-EXPORT_SYMBOL_GPL(devm_pwmchip_add);
+EXPORT_SYMBOL_GPL(__devm_pwmchip_add);
/**
* pwm_request_from_chip() - request a PWM device relative to a PWM chip
pwm_set_chip_data(pwm, NULL);
pwm->label = NULL;
- module_put(pwm->chip->ops->owner);
+ module_put(pwm->chip->owner);
out:
mutex_unlock(&pwm_lock);
}
static const struct pwm_ops ab8500_pwm_ops = {
.apply = ab8500_pwm_apply,
.get_state = ab8500_pwm_get_state,
- .owner = THIS_MODULE,
};
static int ab8500_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops apple_pwm_ops = {
.apply = apple_pwm_apply,
.get_state = apple_pwm_get_state,
- .owner = THIS_MODULE,
};
static int apple_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops atmel_hlcdc_pwm_ops = {
.apply = atmel_hlcdc_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct atmel_hlcdc_pwm_errata atmel_hlcdc_pwm_at91sam9x5_errata = {
.request = atmel_tcb_pwm_request,
.free = atmel_tcb_pwm_free,
.apply = atmel_tcb_pwm_apply,
- .owner = THIS_MODULE,
};
static struct atmel_tcb_config tcb_rm9200_config = {
static const struct pwm_ops atmel_pwm_ops = {
.apply = atmel_pwm_apply,
.get_state = atmel_pwm_get_state,
- .owner = THIS_MODULE,
};
static const struct atmel_pwm_data atmel_sam9rl_pwm_data = {
static const struct pwm_ops iproc_pwm_ops = {
.apply = iproc_pwmc_apply,
.get_state = iproc_pwmc_get_state,
- .owner = THIS_MODULE,
};
static int iproc_pwmc_probe(struct platform_device *pdev)
static const struct pwm_ops kona_pwm_ops = {
.apply = kona_pwmc_apply,
- .owner = THIS_MODULE,
};
static int kona_pwmc_probe(struct platform_device *pdev)
.request = bcm2835_pwm_request,
.free = bcm2835_pwm_free,
.apply = bcm2835_pwm_apply,
- .owner = THIS_MODULE,
};
static int bcm2835_pwm_probe(struct platform_device *pdev)
.request = berlin_pwm_request,
.free = berlin_pwm_free,
.apply = berlin_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct of_device_id berlin_pwm_match[] = {
static const struct pwm_ops brcmstb_pwm_ops = {
.apply = brcmstb_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct of_device_id brcmstb_pwm_of_match[] = {
static const struct pwm_ops pwm_clk_ops = {
.apply = pwm_clk_apply,
- .owner = THIS_MODULE,
};
static int pwm_clk_probe(struct platform_device *pdev)
static const struct pwm_ops clps711x_pwm_ops = {
.request = clps711x_pwm_request,
.apply = clps711x_pwm_apply,
- .owner = THIS_MODULE,
};
static struct pwm_device *clps711x_pwm_xlate(struct pwm_chip *chip,
.free = cros_ec_pwm_free,
.get_state = cros_ec_pwm_get_state,
.apply = cros_ec_pwm_apply,
- .owner = THIS_MODULE,
};
/*
static const struct pwm_ops dwc_pwm_ops = {
.apply = dwc_pwm_apply,
.get_state = dwc_pwm_get_state,
- .owner = THIS_MODULE,
};
static struct dwc_pwm *dwc_pwm_alloc(struct device *dev)
.request = ep93xx_pwm_request,
.free = ep93xx_pwm_free,
.apply = ep93xx_pwm_apply,
- .owner = THIS_MODULE,
};
static int ep93xx_pwm_probe(struct platform_device *pdev)
.request = fsl_pwm_request,
.free = fsl_pwm_free,
.apply = fsl_pwm_apply,
- .owner = THIS_MODULE,
};
static int fsl_pwm_init(struct fsl_pwm_chip *fpc)
.get_state = hibvt_pwm_get_state,
.apply = hibvt_pwm_apply,
- .owner = THIS_MODULE,
};
static int hibvt_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops img_pwm_ops = {
.apply = img_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct img_pwm_soc_data pistachio_pwm = {
.free = pwm_imx_tpm_free,
.get_state = pwm_imx_tpm_get_state,
.apply = pwm_imx_tpm_apply,
- .owner = THIS_MODULE,
};
static int pwm_imx_tpm_probe(struct platform_device *pdev)
static const struct pwm_ops pwm_imx1_ops = {
.apply = pwm_imx1_apply,
- .owner = THIS_MODULE,
};
static const struct of_device_id pwm_imx1_dt_ids[] = {
static const struct pwm_ops pwm_imx27_ops = {
.apply = pwm_imx27_apply,
.get_state = pwm_imx27_get_state,
- .owner = THIS_MODULE,
};
static const struct of_device_id pwm_imx27_dt_ids[] = {
static const struct pwm_ops lgm_pwm_ops = {
.get_state = lgm_pwm_get_state,
.apply = lgm_pwm_apply,
- .owner = THIS_MODULE,
};
static void lgm_pwm_init(struct lgm_pwm_chip *pc)
static const struct pwm_ops iqs620_pwm_ops = {
.apply = iqs620_pwm_apply,
.get_state = iqs620_pwm_get_state,
- .owner = THIS_MODULE,
};
static void iqs620_pwm_notifier_unregister(void *context)
.request = jz4740_pwm_request,
.free = jz4740_pwm_free,
.apply = jz4740_pwm_apply,
- .owner = THIS_MODULE,
};
static int jz4740_pwm_probe(struct platform_device *pdev)
}
static const struct pwm_ops keembay_pwm_ops = {
- .owner = THIS_MODULE,
.apply = keembay_pwm_apply,
.get_state = keembay_pwm_get_state,
};
.request = lp3943_pwm_request,
.free = lp3943_pwm_free,
.apply = lp3943_pwm_apply,
- .owner = THIS_MODULE,
};
static int lp3943_pwm_parse_dt(struct device *dev,
.apply = lpc18xx_pwm_apply,
.request = lpc18xx_pwm_request,
.free = lpc18xx_pwm_free,
- .owner = THIS_MODULE,
};
static const struct of_device_id lpc18xx_pwm_of_match[] = {
static const struct pwm_ops lpc32xx_pwm_ops = {
.apply = lpc32xx_pwm_apply,
- .owner = THIS_MODULE,
};
static int lpc32xx_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops pwm_lpss_ops = {
.apply = pwm_lpss_apply,
.get_state = pwm_lpss_get_state,
- .owner = THIS_MODULE,
};
struct pwm_lpss_chip *devm_pwm_lpss_probe(struct device *dev, void __iomem *base,
static const struct pwm_ops pwm_mediatek_ops = {
.apply = pwm_mediatek_apply,
- .owner = THIS_MODULE,
};
static int pwm_mediatek_probe(struct platform_device *pdev)
.free = meson_pwm_free,
.apply = meson_pwm_apply,
.get_state = meson_pwm_get_state,
- .owner = THIS_MODULE,
};
static const char * const pwm_meson8b_parent_names[] = {
static const struct pwm_ops mchp_core_pwm_ops = {
.apply = mchp_core_pwm_apply,
.get_state = mchp_core_pwm_get_state,
- .owner = THIS_MODULE,
};
static const struct of_device_id mchp_core_of_match[] = {
static const struct pwm_ops mtk_disp_pwm_ops = {
.apply = mtk_disp_pwm_apply,
.get_state = mtk_disp_pwm_get_state,
- .owner = THIS_MODULE,
};
static int mtk_disp_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops mxs_pwm_ops = {
.apply = mxs_pwm_apply,
- .owner = THIS_MODULE,
};
static int mxs_pwm_probe(struct platform_device *pdev)
}
static const struct pwm_ops ntxec_pwm_ops = {
- .owner = THIS_MODULE,
.apply = ntxec_pwm_apply,
/*
* No .get_state callback, because the current state cannot be read
static const struct pwm_ops pwm_omap_dmtimer_ops = {
.apply = pwm_omap_dmtimer_apply,
- .owner = THIS_MODULE,
};
static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
.get_state = pca9685_pwm_get_state,
.request = pca9685_pwm_request,
.free = pca9685_pwm_free,
- .owner = THIS_MODULE,
};
static const struct regmap_config pca9685_regmap_i2c_config = {
static const struct pwm_ops pxa_pwm_ops = {
.apply = pxa_pwm_apply,
- .owner = THIS_MODULE,
};
#ifdef CONFIG_OF
static const struct pwm_ops raspberrypi_pwm_ops = {
.get_state = raspberrypi_pwm_get_state,
.apply = raspberrypi_pwm_apply,
- .owner = THIS_MODULE,
};
static int raspberrypi_pwm_probe(struct platform_device *pdev)
.request = rcar_pwm_request,
.free = rcar_pwm_free,
.apply = rcar_pwm_apply,
- .owner = THIS_MODULE,
};
static int rcar_pwm_probe(struct platform_device *pdev)
.request = tpu_pwm_request,
.free = tpu_pwm_free,
.apply = tpu_pwm_apply,
- .owner = THIS_MODULE,
};
/* -----------------------------------------------------------------------------
static const struct pwm_ops rockchip_pwm_ops = {
.get_state = rockchip_pwm_get_state,
.apply = rockchip_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct rockchip_pwm_data pwm_data_v1 = {
.free = rz_mtu3_pwm_free,
.get_state = rz_mtu3_pwm_get_state,
.apply = rz_mtu3_pwm_apply,
- .owner = THIS_MODULE,
};
static int rz_mtu3_pwm_pm_runtime_suspend(struct device *dev)
.request = pwm_samsung_request,
.free = pwm_samsung_free,
.apply = pwm_samsung_apply,
- .owner = THIS_MODULE,
};
#ifdef CONFIG_OF
.free = pwm_sifive_free,
.get_state = pwm_sifive_get_state,
.apply = pwm_sifive_apply,
- .owner = THIS_MODULE,
};
static int pwm_sifive_clock_notifier(struct notifier_block *nb,
static const struct pwm_ops sl28cpld_pwm_ops = {
.apply = sl28cpld_pwm_apply,
.get_state = sl28cpld_pwm_get_state,
- .owner = THIS_MODULE,
};
static int sl28cpld_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops spear_pwm_ops = {
.apply = spear_pwm_apply,
- .owner = THIS_MODULE,
};
static int spear_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops sprd_pwm_ops = {
.apply = sprd_pwm_apply,
.get_state = sprd_pwm_get_state,
- .owner = THIS_MODULE,
};
static int sprd_pwm_clk_init(struct sprd_pwm_chip *spc)
.capture = sti_pwm_capture,
.apply = sti_pwm_apply,
.free = sti_pwm_free,
- .owner = THIS_MODULE,
};
static irqreturn_t sti_pwm_interrupt(int irq, void *data)
}
static const struct pwm_ops stm32_pwm_lp_ops = {
- .owner = THIS_MODULE,
.apply = stm32_pwm_lp_apply,
.get_state = stm32_pwm_lp_get_state,
};
}
static const struct pwm_ops stm32pwm_ops = {
- .owner = THIS_MODULE,
.apply = stm32_pwm_apply_locked,
.capture = IS_ENABLED(CONFIG_DMA_ENGINE) ? stm32_pwm_capture : NULL,
};
static const struct pwm_ops stmpe_24xx_pwm_ops = {
.apply = stmpe_24xx_pwm_apply,
- .owner = THIS_MODULE,
};
static int __init stmpe_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops sun4i_pwm_ops = {
.apply = sun4i_pwm_apply,
.get_state = sun4i_pwm_get_state,
- .owner = THIS_MODULE,
};
static const struct sun4i_pwm_data sun4i_pwm_dual_nobypass = {
static const struct pwm_ops sunplus_pwm_ops = {
.apply = sunplus_pwm_apply,
.get_state = sunplus_pwm_get_state,
- .owner = THIS_MODULE,
};
static void sunplus_pwm_clk_release(void *data)
static const struct pwm_ops tegra_pwm_ops = {
.apply = tegra_pwm_apply,
- .owner = THIS_MODULE,
};
static int tegra_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops ecap_pwm_ops = {
.apply = ecap_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct of_device_id ecap_of_match[] = {
static const struct pwm_ops ehrpwm_pwm_ops = {
.free = ehrpwm_pwm_free,
.apply = ehrpwm_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct of_device_id ehrpwm_of_match[] = {
static const struct pwm_ops twl4030_pwmled_ops = {
.apply = twl4030_pwmled_apply,
- .owner = THIS_MODULE,
};
static int twl6030_pwmled_config(struct pwm_chip *chip, struct pwm_device *pwm,
.apply = twl6030_pwmled_apply,
.request = twl6030_pwmled_request,
.free = twl6030_pwmled_free,
- .owner = THIS_MODULE,
};
static int twl_pwmled_probe(struct platform_device *pdev)
.apply = twl4030_pwm_apply,
.request = twl4030_pwm_request,
.free = twl4030_pwm_free,
- .owner = THIS_MODULE,
};
static const struct pwm_ops twl6030_pwm_ops = {
.apply = twl6030_pwm_apply,
- .owner = THIS_MODULE,
};
static int twl_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops visconti_pwm_ops = {
.apply = visconti_pwm_apply,
.get_state = visconti_pwm_get_state,
- .owner = THIS_MODULE,
};
static int visconti_pwm_probe(struct platform_device *pdev)
static const struct pwm_ops vt8500_pwm_ops = {
.apply = vt8500_pwm_apply,
- .owner = THIS_MODULE,
};
static const struct of_device_id vt8500_pwm_dt_ids[] = {
static const struct pwm_ops xilinx_pwm_ops = {
.apply = xilinx_pwm_apply,
.get_state = xilinx_pwm_get_state,
- .owner = THIS_MODULE,
};
static const struct regmap_config xilinx_pwm_regmap_config = {
.request = gb_pwm_request,
.free = gb_pwm_free,
.apply = gb_pwm_apply,
- .owner = THIS_MODULE,
};
static int gb_pwm_probe(struct gbphy_device *gbphy_dev,
* @get_state: get the current PWM state. This function is only
* called once per PWM device when the PWM chip is
* registered.
- * @owner: helps prevent removal of modules exporting active PWMs
*/
struct pwm_ops {
int (*request)(struct pwm_chip *chip, struct pwm_device *pwm);
const struct pwm_state *state);
int (*get_state)(struct pwm_chip *chip, struct pwm_device *pwm,
struct pwm_state *state);
- struct module *owner;
};
/**
* struct pwm_chip - abstract a PWM controller
* @dev: device providing the PWMs
* @ops: callbacks for this PWM controller
+ * @owner: module providing this chip
* @base: number of first PWM controlled by this chip
* @npwm: number of PWMs controlled by this chip
* @of_xlate: request a PWM device given a device tree PWM specifier
struct pwm_chip {
struct device *dev;
const struct pwm_ops *ops;
+ struct module *owner;
int base;
unsigned int npwm;
int pwm_set_chip_data(struct pwm_device *pwm, void *data);
void *pwm_get_chip_data(struct pwm_device *pwm);
-int pwmchip_add(struct pwm_chip *chip);
+int __pwmchip_add(struct pwm_chip *chip, struct module *owner);
+#define pwmchip_add(chip) __pwmchip_add(chip, THIS_MODULE)
void pwmchip_remove(struct pwm_chip *chip);
-int devm_pwmchip_add(struct device *dev, struct pwm_chip *chip);
+int __devm_pwmchip_add(struct device *dev, struct pwm_chip *chip, struct module *owner);
+#define devm_pwmchip_add(dev, chip) __devm_pwmchip_add(dev, chip, THIS_MODULE)
struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
unsigned int index,