static void omap_dss_reset_bandwidth(void)
{
struct device *dss_dev;
dss_dev = omap_hwmod_name_get_dev("dss_core");
if (IS_ERR_OR_NULL(dss_dev))
return;
omap_pm_set_min_bus_tput(dss_dev,
OCP_INITIATOR_AGENT, -1);
}
/*
* The value of HIGH_RES_TPUT corresponds to one dispc pipe layer of
* 1920x1080x4(bpp)x60(Hz) = ~500000(MiB/s). We add another 100000
* for the other partial screen pipes. This is above the threshold for
* selecting the higher OPP and L3 frequency, so it's "as fast" as we
* can go so covers the higest supported resolution.
*/
#define HIGH_RES_TPUT 600000 /* MiB/s */
static void omap_dss_request_bandwidth(struct omap_dss_device *display)
{
struct device *dss_dev;
if (display->panel.timings.x_res * display->panel.timings.y_res >=
(1080 * 1920)) {
dss_dev = omap_hwmod_name_get_dev("dss_core");
if (dss_dev)
omap_pm_set_min_bus_tput(dss_dev,
OCP_INITIATOR_AGENT,
HIGH_RES_TPUT);
else
DSSDBG("Failed to set L3 bus speed\n");
}
}
/**
* omap4_opp_enable() - helper to enable the OPP
* @oh_name: name of the hwmod device
* @freq: frequency to enable
*/
static void __init omap4_opp_enable(const char *oh_name, unsigned long freq)
{
struct device *dev;
int r;
dev = omap_hwmod_name_get_dev(oh_name);
if (IS_ERR(dev)) {
pr_err("%s: no %s device, did not enable f=%ld\n", __func__,
oh_name, freq);
return;
}
r = opp_enable(dev, freq);
if (r < 0)
dev_err(dev, "%s: opp_enable failed(%d) f=%ld\n", __func__,
r, freq);
}
static int __init gc_init(void)
{
/* check if hardware is available */
if (!cpu_is_omap447x())
return 0;
/* Initialize context mutex. */
mutex_init(&mtx);
/* Initialize interrupt completion. */
init_completion(&g_gccoreint);
g_bb2d_dev = omap_hwmod_name_get_dev("bb2d");
if (g_bb2d_dev == NULL) {
GCPRINT(NULL, 0, GC_MOD_PREFIX
"cannot find bb2d_fck.\n",
__func__, __LINE__);
goto fail;
}
/* Initialize the command buffer. */
if (cmdbuf_init() != GCERR_NONE) {
GCPRINT(NULL, 0, GC_MOD_PREFIX
"failed to initialize command buffer.\n",
__func__, __LINE__);
goto fail;
}
/* Create debugfs entry */
g_debugRoot = debugfs_create_dir("gcx", NULL);
if (g_debugRoot)
gc_debug_init(g_debugRoot);
mutex_init(&g_maplock);
#if defined(CONFIG_HAS_EARLYSUSPEND)
register_early_suspend(&early_suspend_info);
#endif
return platform_driver_register(&plat_drv);
fail:
return -EINVAL;
}