diff options
| -rw-r--r-- | drivers/media/platform/msm/vidc/msm_vidc_resources.h | 1 | ||||
| -rw-r--r-- | drivers/media/platform/msm/vidc/venus_hfi.c | 41 |
2 files changed, 42 insertions, 0 deletions
diff --git a/drivers/media/platform/msm/vidc/msm_vidc_resources.h b/drivers/media/platform/msm/vidc/msm_vidc_resources.h index 3a329d989918..a1b4ad48b054 100644 --- a/drivers/media/platform/msm/vidc/msm_vidc_resources.h +++ b/drivers/media/platform/msm/vidc/msm_vidc_resources.h @@ -106,6 +106,7 @@ struct clock_info { u32 count; bool has_scaling; bool has_mem_retention; + unsigned long rate_on_enable; }; struct clock_set { diff --git a/drivers/media/platform/msm/vidc/venus_hfi.c b/drivers/media/platform/msm/vidc/venus_hfi.c index 52b56f615da9..20f02ce46029 100644 --- a/drivers/media/platform/msm/vidc/venus_hfi.c +++ b/drivers/media/platform/msm/vidc/venus_hfi.c @@ -1574,6 +1574,7 @@ static int __scale_clocks(struct venus_hfi_device *device, return rc; } + static int venus_hfi_scale_clocks(void *dev, int load, struct vidc_clk_scale_data *data, unsigned long instant_bitrate) @@ -1600,6 +1601,41 @@ exit: return rc; } +static void __save_clock_rate(struct venus_hfi_device *device, bool reset) +{ + struct clock_info *cl; + + venus_hfi_for_each_clock(device, cl) { + if (cl->has_scaling) { + cl->rate_on_enable = + reset ? 0 : clk_get_rate(cl->clk); + dprintk(VIDC_PROF, "Saved clock %s rate %lu\n", + cl->name, cl->rate_on_enable); + } + } +} + +static void __restore_clock_rate(struct venus_hfi_device *device) +{ + struct clock_info *cl; + + venus_hfi_for_each_clock(device, cl) { + if (cl->has_scaling && cl->rate_on_enable) { + int rc; + + rc = __set_clk_rate(device, cl, cl->rate_on_enable); + if (rc) + dprintk(VIDC_ERR, + "Failed to restore clock %s rate %lu\n", + cl->name, cl->rate_on_enable); + else + dprintk(VIDC_DBG, + "Restored clock %s rate %lu\n", + cl->name, cl->rate_on_enable); + } + } +} + /* Writes into cmdq without raising an interrupt */ static int __iface_cmdq_write_relaxed(struct venus_hfi_device *device, void *pkt, bool *requires_interrupt) @@ -4316,6 +4352,7 @@ static inline int __suspend(struct venus_hfi_device *device) goto err_tzbsp_suspend; } + __save_clock_rate(device, false); __venus_power_off(device, true); dprintk(VIDC_PROF, "Venus power collapsed\n"); return rc; @@ -4345,6 +4382,7 @@ static inline int __resume(struct venus_hfi_device *device) dprintk(VIDC_ERR, "Failed to power on venus\n"); goto err_venus_power_on; } + __restore_clock_rate(device); /* Reboot the firmware */ rc = __tzbsp_set_video_state(TZBSP_VIDEO_STATE_RESUME); @@ -4382,6 +4420,7 @@ exit: err_reset_core: __tzbsp_set_video_state(TZBSP_VIDEO_STATE_SUSPEND); err_set_video_state: + __save_clock_rate(device, true); __venus_power_off(device, true); err_venus_power_on: dprintk(VIDC_ERR, "Failed to resume from power collapse\n"); @@ -4440,6 +4479,7 @@ fail_protect_mem: subsystem_put(device->resources.fw.cookie); device->resources.fw.cookie = NULL; fail_load_fw: + __save_clock_rate(device, true); __venus_power_off(device, true); fail_venus_power_on: fail_init_pkt: @@ -4461,6 +4501,7 @@ static void __unload_fw(struct venus_hfi_device *device) __vote_buses(device, NULL, 0); subsystem_put(device->resources.fw.cookie); __interface_queues_release(device); + __save_clock_rate(device, true); __venus_power_off(device, false); device->resources.fw.cookie = NULL; __deinit_resources(device); |