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lineage_android_kernel_samsung_jf
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msm_fb: Make sure MDP clock is ON during register access 

Change to make sure that MDP clock is ON while accessing
MDP fixed arbitration read and write selection
registers. This avoids target freeze due to unclocked
register access.

CRs-fixed: 505154
Change-Id: I1d2e654c7b97ca51e42611a5bd3aefd65421bcf4
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
This commit is contained in:
Padmanabhan Komanduru 2013-06-27 14:41:52 +05:30 committed by Steve Kondik
parent 44486c64a4
commit fbaa5c70a5
1 changed files with 45 additions and 33 deletions
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78
drivers/video/msm/mdp4_overlay.c
View File

@ -3099,47 +3099,59 @@ int mdp4_calc_blt_mdp_bw(struct msm_fb_data_type *mfd,
}
static int mdp4_axi_port_read_client_pipe(struct mdp4_overlay_pipe *pipe)
{
u32 data = inpdw(MDP_BASE + 0x0404);
u32 port = 0;
if (pipe->pipe_ndx == 1) /* rgb1 */
port = (data & 0x0010) ? 1 : 0;
else if (pipe->pipe_ndx == 2) /* rgb2 */
port = (data & 0x0080) ? 1 : 0;
else if (pipe->pipe_ndx == 3) /* vg1 */
port = (data & 0x0001) ? 1 : 0;
else if (pipe->pipe_ndx == 4) /* vg2 */
port = (data & 0x0004) ? 1 : 0;
pr_debug("%s axi_rd=%x pipe_ndx=%d port=%d\n", __func__,
data, pipe->pipe_ndx, port);
return port;
u32 data = 0, port = 0;
mdp_clk_ctrl(1);
data = inpdw(MDP_BASE + 0x0404);
mdp_clk_ctrl(0);
if (pipe->pipe_ndx == 1) /* rgb1 */
port = (data & 0x0010) ? 1 : 0;
else if (pipe->pipe_ndx == 2) /* rgb2 */
port = (data & 0x0080) ? 1 : 0;
else if (pipe->pipe_ndx == 3) /* vg1 */
port = (data & 0x0001) ? 1 : 0;
else if (pipe->pipe_ndx == 4) /* vg2 */
port = (data & 0x0004) ? 1 : 0;
pr_debug("%s axi_rd=%x pipe_ndx=%d port=%d\n", __func__,
data, pipe->pipe_ndx, port);
return port;
}
static int mdp4_axi_port_read_client_mixer(int mixer)
{
u32 data = inpdw(MDP_BASE + 0x0404);
u32 port = 0;
if (mixer == MDP4_MIXER0) /* dmap */
port = (data & 0x1000) ? 1 : 0;
else if (mixer == MDP4_MIXER1) /* dmae */
port = (data & 0x80000) ? 1 : 0;
pr_debug("%s axi_rd=%x mixer=%d port=%d\n",
__func__, data, mixer, port);
return port;
u32 data = 0, port = 0;
mdp_clk_ctrl(1);
data = inpdw(MDP_BASE + 0x0404);
mdp_clk_ctrl(0);
if (mixer == MDP4_MIXER0) /* dmap */
port = (data & 0x1000) ? 1 : 0;
else if (mixer == MDP4_MIXER1) /* dmae */
port = (data & 0x80000) ? 1 : 0;
pr_debug("%s axi_rd=%x mixer=%d port=%d\n",
__func__, data, mixer, port);
return port;
}
static int mdp4_axi_port_write_client_mixer(int mixer)
{
u32 data = inpdw(MDP_BASE + 0x0408);
u32 port = 0;
if (mixer == MDP4_MIXER0) /* dmap */
port = (data & 0x0001) ? 1 : 0;
else if (mixer == MDP4_MIXER1) /* dmae */
port = (data & 0x0004) ? 1 : 0;
else if (mixer == MDP4_MIXER2)
port = (data & 0x0004) ? 1 : 0;
pr_debug("%s axi_wr=%x mixer=%d port=%d\n",
__func__, data, mixer, port);
return port;
u32 data = 0, port = 0;
mdp_clk_ctrl(1);
data = inpdw(MDP_BASE + 0x0408);
mdp_clk_ctrl(0);
if (mixer == MDP4_MIXER0) /* dmap */
port = (data & 0x0001) ? 1 : 0;
else if (mixer == MDP4_MIXER1) /* dmae */
port = (data & 0x0004) ? 1 : 0;
else if (mixer == MDP4_MIXER2)
port = (data & 0x0004) ? 1 : 0;
pr_debug("%s axi_wr=%x mixer=%d port=%d\n",
__func__, data, mixer, port);
return port;
}
int mdp4_overlay_mdp_perf_req(struct msm_fb_data_type *mfd)