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    Subject[PATCH 4/90] ARM: OMAP: Enable 24xx GPIO autoidling
    Date
    From: Juha Yrjola <juha.yrjola@solidboot.com>

    Enable 24xx GPIO autoidling

    Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
    Signed-off-by: Tony Lindgren <tony@atomide.com>
    ---
    arch/arm/plat-omap/gpio.c | 10 ++++++++++
    1 files changed, 10 insertions(+), 0 deletions(-)

    diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
    index b8c01de..e2547a7 100644
    --- a/arch/arm/plat-omap/gpio.c
    +++ b/arch/arm/plat-omap/gpio.c
    @@ -1083,6 +1083,10 @@ static int __init _omap_gpio_init(void)
    if (bank->method == METHOD_GPIO_24XX) {
    __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1);
    __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1);
    + __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG);
    +
    + /* Initialize interface clock ungated, module enabled */
    + __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL);

    gpio_count = 32;
    }
    @@ -1105,6 +1109,12 @@ static int __init _omap_gpio_init(void)
    if (cpu_is_omap16xx())
    omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04, ULPD_CAM_CLK_CTRL);

    +#ifdef CONFIG_ARCH_OMAP24XX
    + /* Enable autoidle for the OCP interface */
    + if (cpu_is_omap24xx())
    + omap_writel(1 << 0, 0x48019010);
    +#endif
    +
    return 0;
    }

    --
    1.4.4.2
    -
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