kernel-5.8.0-0.rc1.1

* Sun Jun 14 2020 Justin M. Forbes <jforbes@fedoraproject.org> [5.8.0-0.rc1.1]
- Fedora config update for rc1 ("Justin M. Forbes")
Resolves: rhbz#

Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>

1 files changed, 0 insertions, 100 deletions

diff --git a/0001-pwm-lpss-Fix-get_state-runtime-pm-reference-handling.patch b/0001-pwm-lpss-Fix-get_state-runtime-pm-reference-handling.patch
deleted file mode 100644
index 1e07d8e45..000000000
--- a/0001-pwm-lpss-Fix-get_state-runtime-pm-reference-handling.patch
+++ /dev/null
@@ -1,100 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Hans de Goede <hdegoede@redhat.com>
-Date: Tue, 12 May 2020 00:39:24 +0200
-Subject: [PATCH] pwm: lpss: Fix get_state runtime-pm reference handling
-
-Before commit cfc4c189bc70 ("pwm: Read initial hardware state at request
-time"), a driver's get_state callback would get called once per PWM from
-pwmchip_add().
-
-pwm-lpss' runtime-pm code was relying on this, getting a runtime-pm ref for
-PWMs which are enabled at probe time from within its get_state callback,
-before enabling runtime-pm.
-
-The change to calling get_state at request time causes a number of
-problems:
-
-1. PWMs enabled at probe time may get runtime suspended before they are
-requested, causing e.g. a LCD backlight controlled by the PWM to turn off.
-
-2. When the request happens when the PWM has been runtime suspended, the
-ctrl register will read all 1 / 0xffffffff, causing get_state to store
-bogus values in the pwm_state.
-
-3. get_state was using an async pm_runtime_get() call, because it assumed
-that runtime-pm has not been enabled yet. If shortly after the request an
-apply call is made, then the pwm_lpss_is_updating() check may trigger
-because the resume triggered by the pm_runtime_get() call is not complete
-yet, so the ctrl register still reads all 1 / 0xffffffff.
-
-This commit fixes these issues by moving the initial pm_runtime_get() call
-for PWMs which are enabled at probe time to the pwm_lpss_probe() function;
-and by making get_state take a runtime-pm ref before reading the ctrl reg.
-
-BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1828927
-Fixes: cfc4c189bc70 ("pwm: Read initial hardware state at request time")
-Cc: stable@vger.kernel.org
-Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
-Signed-off-by: Hans de Goede <hdegoede@redhat.com>
-Upstream Status: https://lore.kernel.org/linux-acpi/5f15f6bc-8650-d86e-893f-0d41557c57c7@redhat.com/
----
- drivers/pwm/pwm-lpss.c | 15 +++++++++++----
- 1 file changed, 11 insertions(+), 4 deletions(-)
-
-diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c
-index 75bbfe5f3bc2..9d965ffe66d1 100644
---- a/drivers/pwm/pwm-lpss.c
-+++ b/drivers/pwm/pwm-lpss.c
-@@ -158,7 +158,6 @@ static int pwm_lpss_apply(struct pwm_chip *chip, struct pwm_device *pwm,
- 	return 0;
- }
-
--/* This function gets called once from pwmchip_add to get the initial state */
- static void pwm_lpss_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
- 			       struct pwm_state *state)
- {
-@@ -167,6 +166,8 @@ static void pwm_lpss_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
- 	unsigned long long base_unit, freq, on_time_div;
- 	u32 ctrl;
-
-+	pm_runtime_get_sync(chip->dev);
-+
- 	base_unit_range = BIT(lpwm->info->base_unit_bits);
-
- 	ctrl = pwm_lpss_read(pwm);
-@@ -187,8 +188,7 @@ static void pwm_lpss_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
- 	state->polarity = PWM_POLARITY_NORMAL;
- 	state->enabled = !!(ctrl & PWM_ENABLE);
-
--	if (state->enabled)
--		pm_runtime_get(chip->dev);
-+	pm_runtime_put(chip->dev);
- }
-
- static const struct pwm_ops pwm_lpss_ops = {
-@@ -202,7 +202,8 @@ struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
- {
- 	struct pwm_lpss_chip *lpwm;
- 	unsigned long c;
--	int ret;
-+	int i, ret;
-+	u32 ctrl;
-
- 	if (WARN_ON(info->npwm > MAX_PWMS))
- 		return ERR_PTR(-ENODEV);
-@@ -232,6 +233,12 @@ struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
- 		return ERR_PTR(ret);
- 	}
-
-+	for (i = 0; i < lpwm->info->npwm; i++) {
-+		ctrl = pwm_lpss_read(&lpwm->chip.pwms[i]);
-+		if (ctrl & PWM_ENABLE)
-+			pm_runtime_get(dev);
-+	}
-+
- 	return lpwm;
- }
- EXPORT_SYMBOL_GPL(pwm_lpss_probe);
--- 
-2.26.2
-