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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-11-17 13:08:03 +0200 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-11-22 16:36:27 +0200 |
| commit | 2fd36aa0ad1c714d0c92a025ae28c8721ffe108e (patch) | |
| tree | 7d46e2d5b86d22a529203916aa29bea62c10466f | |
| parent | 878cf979c1458f835d436debb886f9dfff59012a (diff) | |
| download | linux-2fd36aa0ad1c714d0c92a025ae28c8721ffe108e.tar.bz2 | |
pwm: lpss: Allow other drivers to enable PWM LPSS
The PWM LPSS device can be embedded in another device.
In order to enable it, allow that drivers to probe
a corresponding device.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| -rw-r--r-- | drivers/pwm/pwm-lpss.h | 22 | ||||
| -rw-r--r-- | include/linux/platform_data/x86/pwm-lpss.h | 33 |
2 files changed, 34 insertions, 21 deletions
diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h index 4ce6daa46ca8..bf841250385f 100644 --- a/drivers/pwm/pwm-lpss.h +++ b/drivers/pwm/pwm-lpss.h @@ -13,7 +13,7 @@ #include <linux/pwm.h> #include <linux/types.h> -struct device; +#include <linux/platform_data/x86/pwm-lpss.h> #define LPSS_MAX_PWMS 4 @@ -23,29 +23,9 @@ struct pwm_lpss_chip { const struct pwm_lpss_boardinfo *info; }; -struct pwm_lpss_boardinfo { - unsigned long clk_rate; - unsigned int npwm; - unsigned long base_unit_bits; - /* - * Some versions of the IP may stuck in the state machine if enable - * bit is not set, and hence update bit will show busy status till - * the reset. For the rest it may be otherwise. - */ - bool bypass; - /* - * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device - * messes with the PWM0 controllers state, - */ - bool other_devices_aml_touches_pwm_regs; -}; - extern const struct pwm_lpss_boardinfo pwm_lpss_byt_info; extern const struct pwm_lpss_boardinfo pwm_lpss_bsw_info; extern const struct pwm_lpss_boardinfo pwm_lpss_bxt_info; extern const struct pwm_lpss_boardinfo pwm_lpss_tng_info; -struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, void __iomem *base, - const struct pwm_lpss_boardinfo *info); - #endif /* __PWM_LPSS_H */ diff --git a/include/linux/platform_data/x86/pwm-lpss.h b/include/linux/platform_data/x86/pwm-lpss.h new file mode 100644 index 000000000000..296bd837ddbb --- /dev/null +++ b/include/linux/platform_data/x86/pwm-lpss.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Intel Low Power Subsystem PWM controller driver */ + +#ifndef __PLATFORM_DATA_X86_PWM_LPSS_H +#define __PLATFORM_DATA_X86_PWM_LPSS_H + +#include <linux/types.h> + +struct device; + +struct pwm_lpss_chip; + +struct pwm_lpss_boardinfo { + unsigned long clk_rate; + unsigned int npwm; + unsigned long base_unit_bits; + /* + * Some versions of the IP may stuck in the state machine if enable + * bit is not set, and hence update bit will show busy status till + * the reset. For the rest it may be otherwise. + */ + bool bypass; + /* + * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device + * messes with the PWM0 controllers state, + */ + bool other_devices_aml_touches_pwm_regs; +}; + +struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, void __iomem *base, + const struct pwm_lpss_boardinfo *info); + +#endif /* __PLATFORM_DATA_X86_PWM_LPSS_H */ |