From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>,
linux-gpio@vger.kernel.org,
Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v2 2/5] pinctrl: intel: Introduce intel_restore_hostown() helper
Date: Tue, 22 Oct 2019 13:00:01 +0300 [thread overview]
Message-ID: <20191022100004.66532-3-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20191022100004.66532-1-andriy.shevchenko@linux.intel.com>
Refactor restoring HOSTSW_OWN registers by using an introduced helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/pinctrl/intel/pinctrl-intel.c | 38 +++++++++++++++------------
1 file changed, 21 insertions(+), 17 deletions(-)
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 181e5c8c1855..1bdc0365e1ad 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -1607,6 +1607,25 @@ intel_gpio_update_pad_mode(void __iomem *hostown, u32 mask, u32 value)
return curr;
}
+static void intel_restore_hostown(struct intel_pinctrl *pctrl, unsigned int c,
+ void __iomem *base, unsigned int gpp, u32 saved)
+{
+ const struct intel_community *community = &pctrl->communities[c];
+ const struct intel_padgroup *padgrp = &community->gpps[gpp];
+ struct device *dev = pctrl->dev;
+ u32 requested, value;
+
+ if (padgrp->gpio_base < 0)
+ return;
+
+ requested = intel_gpio_is_requested(&pctrl->chip, padgrp->gpio_base, padgrp->size);
+ value = intel_gpio_update_pad_mode(base + gpp * 4, requested, saved);
+ if (!((value ^ saved) & requested))
+ return;
+
+ dev_warn(dev, "restored hostown %u/%u %#8x->%#8x\n", c, gpp, value, saved);
+}
+
static void intel_restore_padcfg(struct intel_pinctrl *pctrl, unsigned int pin,
unsigned int reg, u32 saved)
{
@@ -1664,23 +1683,8 @@ int intel_pinctrl_resume_noirq(struct device *dev)
}
base = community->regs + community->hostown_offset;
- for (gpp = 0; gpp < community->ngpps; gpp++) {
- const struct intel_padgroup *padgrp = &community->gpps[gpp];
- u32 requested = 0, value = 0;
- u32 saved = communities[i].hostown[gpp];
-
- if (padgrp->gpio_base < 0)
- continue;
-
- requested = intel_gpio_is_requested(&pctrl->chip,
- padgrp->gpio_base, padgrp->size);
- value = intel_gpio_update_pad_mode(base + gpp * 4,
- requested, saved);
- if ((value ^ saved) & requested) {
- dev_warn(dev, "restore hostown %d/%u %#8x->%#8x\n",
- i, gpp, value, saved);
- }
- }
+ for (gpp = 0; gpp < community->ngpps; gpp++)
+ intel_restore_hostown(pctrl, i, base, gpp, communities[i].hostown[gpp]);
}
return 0;
--
2.23.0
next prev parent reply other threads:[~2019-10-22 10:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-22 9:59 [PATCH v2 0/5] pinctrl: intel: Refactor register restoring on resume Andy Shevchenko
2019-10-22 10:00 ` [PATCH v2 1/5] pinctrl: intel: Introduce intel_restore_padcfg() helper Andy Shevchenko
2019-11-04 15:07 ` Linus Walleij
2019-10-22 10:00 ` Andy Shevchenko [this message]
2019-10-22 10:00 ` [PATCH v2 3/5] pinctrl: intel: Introduce intel_restore_intmask() helper Andy Shevchenko
2019-10-22 10:00 ` [PATCH v2 4/5] pinctrl: intel: Drop level from warning to debug in intel_restore_hostown() Andy Shevchenko
2019-10-22 10:00 ` [PATCH v2 5/5] pinctrl: intel: Use helper to restore register values on ->resume() Andy Shevchenko
2019-10-23 7:30 ` [PATCH v2 0/5] pinctrl: intel: Refactor register restoring on resume Mika Westerberg
2019-10-23 9:36 ` Andy Shevchenko
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