Messages in this thread | | | Date | Sun, 14 Sep 2014 02:54:46 -0400 | From | Jason Cooper <> | Subject | Re: [PATCH 0/4] ARM: shmobile: r8a7740: Handle implicitly enabled clocks |
| |
On Fri, Sep 12, 2014 at 03:15:16PM +0200, Geert Uytterhoeven wrote: > Hi all, > > This patch series fixes an issue with the INTCA module clock, which we > currently assume enabled by the bootloader or reset state. > If this clock was not enabled before booting Linux, the intc-irqpin driver > and all devices connected to it (buttons, RTC on i2c-gpio) don't work. > > To fix this, the clock is added to the system, and is managed in the driver > through runtime PM, taking into account wake-up sources (gpio-keys, RTC alarm). > > There's one remaining issue for armadillo-legacy, which has support for the LCD > controller. Although the shmobile_lcd_fb driver doesn't use MERAM on r8a7740 > (unlike on sh7372), the MERAM (Media RAM) and ICB (MERAM Interconnect Buffer) > clocks must be enabled to show a picture on the display. However, the MERAM > doesn't have any device associated with it, so it's non-trivial to hook it up. > > This patch series is based on renesas-devel-20140911-v3.17-rc4 and > irqchip/for-next. > > Geert Uytterhoeven (4): > irqchip: renesas-intc-irqpin: Add helper variable dev = &pdev->dev > irqchip: renesas-intc-irqpin: Add minimal runtime PM support > ARM: shmobile: r8a7740 legacy: Add missing INTCA clock for irqpin > module > ARM: shmobile: r8a7740 dtsi: Add missing INTCA clock for irqpin module > > arch/arm/boot/dts/r8a7740.dtsi | 14 ++++-- > arch/arm/mach-shmobile/clock-r8a7740.c | 7 ++- > drivers/irqchip/irq-renesas-intc-irqpin.c | 83 +++++++++++++++++++++---------- > include/dt-bindings/clock/r8a7740-clock.h | 1 + > 4 files changed, 73 insertions(+), 32 deletions(-)
Patches 1 and 2 applied to irqchip/core
thx,
Jason.
| |