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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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