From: Alpha Lin <alpha.lin@rock-chips.com>
Date: Mon, 10 Aug 2015 08:05:12 +0000 (+0800)
Subject: VCODEC: detect hevc resolution to determine the running frequency.
X-Git-Tag: firefly_0821_release~3856
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7f242a51f610d29d333eadaff951f0ec40e9b585;p=firefly-linux-kernel-4.4.55.git

VCODEC: detect hevc resolution to determine the running frequency.

Signed-off-by: Alpha Lin <alpha.lin@rock-chips.com>
---

diff --git a/arch/arm/mach-rockchip/vcodec_service.c b/arch/arm/mach-rockchip/vcodec_service.c
index cb260d89d414..d4b7f22c9422 100755
--- a/arch/arm/mach-rockchip/vcodec_service.c
+++ b/arch/arm/mach-rockchip/vcodec_service.c
@@ -1000,6 +1000,12 @@ static inline int reg_probe_width(vpu_reg *reg)
 	return width_in_mb * 16;
 }
 
+static inline int reg_probe_hevc_y_stride(vpu_reg *reg)
+{
+	int y_virstride = reg->reg[8];
+	return y_virstride;
+}
+
 #if defined(CONFIG_VCODEC_MMU)
 static int vcodec_fd_to_iova(struct vpu_subdev_data *data, vpu_reg *reg,int fd)
 {
@@ -1292,6 +1298,10 @@ static vpu_reg *reg_init(struct vpu_subdev_data *data,
 					}
 				}
 			}
+			if (data->hw_info->hw_id == HEVC_ID) {
+				if (reg_probe_hevc_y_stride(reg) > 60000)
+					reg->freq = VPU_FREQ_400M;
+			}
 			if (reg->type == VPU_PP) {
 				reg->freq = VPU_FREQ_400M;
 			}