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authorLinus Walleij <linus.walleij@linaro.org>2022-11-28 21:23:20 +0100
committerLinus Walleij <linus.walleij@linaro.org>2022-11-28 21:23:20 +0100
commite7d0040b4359815095a63e0297b8aa0ae8695b08 (patch)
tree1fc6759ad3a53bf3bbadbc2905b66ff06eddfb78 /include/linux
parent6349c162b7dc69da82d508bccf68ef017893573e (diff)
parenteb78d3604d6bcbe9743e036114c33a5a17090a0a (diff)
Merge tag 'intel-pinctrl-v6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v6.2-2 * Enable PWM feature on Intel pin control IPs The following is an automated git shortlog grouped by driver: intel: - Enumerate PWM device when community has a capability pwm: - lpss: Rename pwm_lpss_probe() --> devm_pwm_lpss_probe() - lpss: Allow other drivers to enable PWM LPSS - lpss: Include headers we are the direct user of - lpss: Rename MAX_PWMS --> LPSS_MAX_PWMS - Add a stub for devm_pwmchip_add()
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/platform_data/x86/pwm-lpss.h33
-rw-r--r--include/linux/pwm.h5
2 files changed, 38 insertions, 0 deletions
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..c852fe24fe2a
--- /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 *devm_pwm_lpss_probe(struct device *dev, void __iomem *base,
+ const struct pwm_lpss_boardinfo *info);
+
+#endif /* __PLATFORM_DATA_X86_PWM_LPSS_H */
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index d70c6e5a839d..bba492eea96c 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -478,6 +478,11 @@ static inline int pwmchip_remove(struct pwm_chip *chip)
return -EINVAL;
}
+static inline int devm_pwmchip_add(struct device *dev, struct pwm_chip *chip)
+{
+ return -EINVAL;
+}
+
static inline struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
unsigned int index,
const char *label)