OMAP: hwmod/device: add omap_{device,hwmod}_get_mpu_rt_va
Add omap_device_get_mpu_rt_va(). This is intended to be used by
device drivers (currently, via a struct platform_data function
pointer) to retrieve their corresponding device's virtual base address
that the MPU should use to access the device. This is needed because
the omap_hwmod code does its own ioremap(), in order to gain access to
the module's OCP_SYSCONFIG register.
Add omap_hwmod_get_mpu_rt_va(). omap_device_get_mpu_rt_va() calls this
function to do the real work.
While here, rename struct omap_hwmod._rt_va to struct
omap_hwmod._mpu_rt_va, to reinforce that it refers to the MPU's
register target virtual address base (as opposed to, for example, the
L3's).
In the future, this belongs as a function in an omap_bus, so it is not
necessary to call this through a platform_data function pointer.
The use-case for this function was originally presented by Santosh
Shilimkar <santosh.shilimkar@ti.com>.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h
index 3694b62..25cd9ac 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -101,6 +101,8 @@
int omap_device_register(struct omap_device *od);
int omap_early_device_register(struct omap_device *od);
+void __iomem *omap_device_get_rt_va(struct omap_device *od);
+
/* OMAP PM interface */
int omap_device_align_pm_lat(struct platform_device *pdev,
u32 new_wakeup_lat_limit);