platform: msm_shared: add support for auto refresh feature
Add support for auto refresh feature in MDP5 targets. With this
feature display can support multiple frame updates in LK, when
display is configured in command mode.
Change-Id: I04a41a1f0d2e8a968903102c29306617d3768414
diff --git a/platform/msm_shared/include/mdp5.h b/platform/msm_shared/include/mdp5.h
index 14e84b3..ebf107b 100644
--- a/platform/msm_shared/include/mdp5.h
+++ b/platform/msm_shared/include/mdp5.h
@@ -225,6 +225,14 @@
#define MDSS_MDP_DSC_RANGE_MAX_QP 0xB0 /* 15 bytes */
#define MDSS_MDP_DSC_RANGE_BPG_OFFSET 0xEc /* 15 bytes */
+/* Autorefresh related registers */
+#define MDP_REG_PP_0_SYNC_CONFIG_VSYNC REG_MDP(0x71004)
+#define MDP_REG_PP_1_SYNC_CONFIG_VSYNC REG_MDP(0x71804)
+#define MDP_REG_PP_SLAVE_SYNC_CONFIG_VSYNC REG_MDP(0x73004)
+#define MDP_REG_PP_0_AUTOREFRESH_CONFIG REG_MDP(0x71030)
+#define MDP_REG_PP_1_AUTOREFRESH_CONFIG REG_MDP(0x71830)
+#define MDP_REG_PP_SLAVE_AUTOREFRESH_CONFIG REG_MDP(0x73030)
+
void mdp_set_revision(int rev);
int mdp_get_revision();
int mdp_dsi_video_config(struct msm_panel_info *pinfo, struct fbcon_config *fb);
diff --git a/platform/msm_shared/include/msm_panel.h b/platform/msm_shared/include/msm_panel.h
index 7066311..d2a338f 100755
--- a/platform/msm_shared/include/msm_panel.h
+++ b/platform/msm_shared/include/msm_panel.h
@@ -419,6 +419,9 @@
int (*early_config) (void *pdata);
int (*config) (void *pdata);
int (*rotate) (void);
+
+ char autorefresh_enable;
+ uint32_t autorefresh_framenum;
};
struct msm_fb_panel_data {
diff --git a/platform/msm_shared/mdp5.c b/platform/msm_shared/mdp5.c
index 72ca46a..77a23da 100755
--- a/platform/msm_shared/mdp5.c
+++ b/platform/msm_shared/mdp5.c
@@ -39,6 +39,7 @@
#include <err.h>
#include <clock.h>
#include <scm.h>
+#include <arch/defines.h>
#define MDSS_MDP_MAX_PREFILL_FETCH 25
@@ -1271,6 +1272,46 @@
return NO_ERROR;
}
+static void mdp_set_cmd_autorefresh_mode(struct msm_panel_info *pinfo)
+{
+ uint32_t total_lines = 0, vclks_line = 0, cfg = 0;
+
+ if (!pinfo || (pinfo->type != MIPI_CMD_PANEL) ||
+ !pinfo->autorefresh_enable)
+ return;
+
+ total_lines = pinfo->lcdc.v_front_porch +
+ pinfo->lcdc.v_back_porch +
+ pinfo->lcdc.v_pulse_width +
+ pinfo->border_top + pinfo->border_bottom +
+ pinfo->yres;
+ total_lines *= pinfo->mipi.frame_rate;
+
+ vclks_line = (total_lines) ? 19200000 / total_lines : 0;
+ vclks_line = vclks_line * pinfo->mipi.frame_rate * 100 / 6000;
+
+ cfg = BIT(19) | vclks_line;
+
+ /* Configure tearcheck VSYNC param */
+ writel(cfg, MDP_REG_PP_0_SYNC_CONFIG_VSYNC);
+ if (pinfo->lcdc.dst_split)
+ writel(cfg, MDP_REG_PP_SLAVE_SYNC_CONFIG_VSYNC);
+ if (pinfo->lcdc.dual_pipe)
+ writel(cfg, MDP_REG_PP_1_SYNC_CONFIG_VSYNC);
+ dsb();
+
+ /* Enable autorefresh mode */
+ writel((BIT(31) | pinfo->autorefresh_framenum),
+ MDP_REG_PP_0_AUTOREFRESH_CONFIG);
+ if (pinfo->lcdc.dst_split)
+ writel((BIT(31) | pinfo->autorefresh_framenum),
+ MDP_REG_PP_SLAVE_AUTOREFRESH_CONFIG);
+ if (pinfo->lcdc.dual_pipe)
+ writel((BIT(31) | pinfo->autorefresh_framenum),
+ MDP_REG_PP_1_AUTOREFRESH_CONFIG);
+ dsb();
+}
+
int mdp_dma_on(struct msm_panel_info *pinfo)
{
uint32_t ctl0_reg_val, ctl1_reg_val;
@@ -1279,8 +1320,11 @@
if (pinfo->lcdc.dual_pipe && !pinfo->lcdc.dst_split)
writel(ctl1_reg_val, MDP_CTL_1_BASE + CTL_FLUSH);
+ if (pinfo->autorefresh_enable)
+ mdp_set_cmd_autorefresh_mode(pinfo);
writel(0x01, MDP_CTL_0_BASE + CTL_START);
- return NO_ERROR;
+
+ return NO_ERROR;
}
int mdp_edp_on(struct msm_panel_info *pinfo)