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  1. 08 Nov, 2019 1 commit
  3. 06 Nov, 2019 2 commits
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  25. 14 Oct, 2019 2 commits
  27. 11 Oct, 2019 1 commit
  29. 09 Oct, 2019 3 commits
    • Tony Lindgren's avatar
      ARM: dts: Use level interrupt for omap4 & 5 wlcore · 087a2b7e
      Tony Lindgren authored 
      Commit 572cf7d7 ("ARM: dts: Improve omap l4per idling with wlcore edge
sensitive interrupt") changed wlcore interrupts to use edge interrupt based
on what's specified in the wl1835mod.pdf data sheet.

However, there are still cases where we can have lost interrupts as
described in omap_gpio_unidle(). And using a level interrupt instead of edge
interrupt helps as we avoid the check for untriggered GPIO interrupts in
omap_gpio_unidle().

And with commit e6818d29 ("gpio: gpio-omap: configure edge detection
for level IRQs for idle wakeup") GPIOs idle just fine with level interrupts.

Let's change omap4 and 5 wlcore users back to using level interrupt
instead of edge interrupt. Let's not change the others as I've only seen
this on omap4 and 5, probably because the other SoCs don't have l4per idle
independent of the CPUs.

Fixes: 572cf7d7 ("ARM: dts: Improve omap l4per idling with wlcore edge sensitive interrupt")
Depends-on: e6818d29 ("gpio: gpio-omap: configure edge detection for level IRQs for idle wakeup")
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Eyal Reizer <eyalr@ti.com>
Cc: Guy Mishol <guym@ti.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      087a2b7e
    • Krzysztof Kozlowski's avatar
      ARM: multi_v7_defconfig: Enable Exynos bus and memory frequency scaling (devfreq) · 54e48a69
      Krzysztof Kozlowski authored 
      Enable devfreq events along with drivers for scaling frequency and
voltages of Exynos buses and Dynamic Memory Controller (DMC).  This
usually brings energy saving benefits.

So far devfreq was disabled because it was causing hangs during system
reboot (voltage not matching reset frequency). This was already fixed.

Occasionally, devfreq might negatively impact performance of certain SoC
blocks, e.g. when a bus is scaled down but some block (like Mixer with
two Full HD windows) wants to perform high-throughput DMA operations.
Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      54e48a69
    • Krzysztof Kozlowski's avatar
      ARM: multi_v7_defconfig: Enable options for boards with Exynos SoC · 00265bee
      Krzysztof Kozlowski authored 
      Sync with exynos_defconfig and enable following options for Samsung
Exynos SoC based boards:
1. NFC_S3FWRN5_I2C (with NFC stack): Samsung S3FWRN5 NCI NFC Controller,
   used for example on Exynos5433 (if booted in 32-bit mode),
2. S3C2410_WATCHDOG: watchdog driver used on S3C, S5P and Exynos SoCs,
3. REGULATOR_S2MPA01: Samsung S2MPA01 regulators driver present on
   Exynos5260 RexNos REX-RED board,
4. SND_SOC_ARNDALE: sound support on Arndale boards,
5. EXYNOS_IOMMU: IOMMU driver used on all Exynos SocS,,
6. EXTCON_MAX14577, EXTCON_MAX77693 and EXTCON_MAX8997: extcon drivers
   for handling micro USB on mobile Samsung boards (Trats, Trats2,
   Rinato),
7. PHY_EXYNOS5250_SATA: SATA phy for Exynos5250 present on Arndale and
   SMDK5250 boards.
Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      00265bee
  31. 08 Oct, 2019 1 commit
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