diff options
| -rw-r--r-- | arch/arm/mach-omap2/devices.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index b987208..7eb9306 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -24,6 +24,10 @@ #include <asm/mach/map.h> #include <asm/pmu.h> +#ifdef CONFIG_OMAP4_DPLL_CASCADING +#include <mach/omap4-common.h> +#endif + #include <plat/tc.h> #include <plat/board.h> #include <plat/mcbsp.h> @@ -904,6 +908,24 @@ static struct omap_device_pm_latency omap_gpu_latency[] = { }, }; +#ifdef CONFIG_OMAP4_DPLL_CASCADING +int omap_device_scale_gpu(struct device *req_dev, struct device *target_dev, + unsigned long rate) +{ + unsigned long freq = 0; + + /* find lowest frequency */ + opp_find_freq_ceil(target_dev, &freq); + + if (rate > freq) + omap4_dpll_cascading_blocker_hold(target_dev); + else + omap4_dpll_cascading_blocker_release(target_dev); + + return omap_device_scale(req_dev, target_dev, rate); +} +#endif + static void omap_init_gpu(void) { struct omap_hwmod *oh; @@ -932,8 +954,11 @@ static void omap_init_gpu(void) pr_err("omap_init_gpu: Platform data memory allocation failed\n"); return; } - +#ifdef CONFIG_OMAP4_DPLL_CASCADING + pdata->device_scale = omap_device_scale_gpu; +#else pdata->device_scale = omap_device_scale; +#endif pdata->device_enable = omap_device_enable; pdata->device_idle = omap_device_idle; pdata->device_shutdown = omap_device_shutdown; |