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    Subject[PATCHv9 11/18] omap3+: add omap prm driver initialization
    Date
    OMAP PRM driver is initialized based on availability of PRM hwmods.
    This patch will sequentially check for a list of known PRM hwmods and
    will add an omap device if any is found.

    Signed-off-by: Tero Kristo <t-kristo@ti.com>
    ---
    arch/arm/mach-omap2/devices.c | 46 +++++++++++++++++++++++++++++++++++++++++
    1 files changed, 46 insertions(+), 0 deletions(-)

    diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
    index 10adf66..d6750a4 100644
    --- a/arch/arm/mach-omap2/devices.c
    +++ b/arch/arm/mach-omap2/devices.c
    @@ -419,6 +419,51 @@ static void omap_init_pmu(void)
    platform_device_register(&omap_pmu_device);
    }

    +#ifdef CONFIG_OMAP_PRM
    +
    +#include <linux/mfd/omap-prm.h>
    +
    +static const char * const omap_prm_devnames[] = {
    + "prm3xxx",
    + "prm4xxx",
    + NULL,
    +};
    +
    +static void omap_init_prm(void)
    +{
    + struct platform_device *pdev;
    + struct omap_hwmod *oh = NULL;
    + struct omap_prm_platform_config *pdata;
    + int i = 0;
    +
    + while (!oh && omap_prm_devnames[i]) {
    + oh = omap_hwmod_lookup(omap_prm_devnames[i]);
    + i++;
    + }
    +
    + if (!oh) {
    + pr_info("prm hwmod not available\n");
    + return;
    + }
    +
    + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
    +
    + if (!pdata) {
    + pr_err("%s: kzalloc failed\n", __func__);
    + return;
    + }
    +
    + pdata->irq = oh->mpu_irqs[0].irq;
    + pdata->base = omap_hwmod_get_mpu_rt_va(oh);
    +
    + pdev = omap_device_build(oh->name, -1, oh, pdata,
    + sizeof(*pdata), NULL, 0, 0);
    +
    + WARN(IS_ERR(pdev), "Unable to build omap device for PRM\n");
    +}
    +#else
    +static inline void omap_init_prm(void) { }
    +#endif

    #if defined(CONFIG_CRYPTO_DEV_OMAP_SHAM) || defined(CONFIG_CRYPTO_DEV_OMAP_SHAM_MODULE)

    @@ -687,6 +732,7 @@ static int __init omap2_init_devices(void)
    omap_init_mbox();
    omap_init_mcspi();
    omap_init_pmu();
    + omap_init_prm();
    omap_hdq_init();
    omap_init_sti();
    omap_init_sham();
    --
    1.7.4.1

    Texas Instruments Oy, Tekniikantie 12, 02150 Espoo. Y-tunnus: 0115040-6. Kotipaikka: Helsinki




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