aboutsummaryrefslogtreecommitdiffstats
path: root/recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch
diff options
context:
space:
mode:
authorSergey Lapin <slapin@ossfans.org>2009-06-26 22:32:52 +0400
committerSergey Lapin <slapin@ossfans.org>2009-06-26 22:32:52 +0400
commitc91a54aef8a39e7cbb2571574f56f2cf12104ff1 (patch)
treee68102d093c111affd9208b78df9c18aa837c3b8 /recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch
parent323edc5ef4c3d8572ee0b4fd185ca6e3166d6b45 (diff)
parent84efca2e2ad21d3d7cea68c0327f91aaf773eb67 (diff)
downloadopenembedded-c91a54aef8a39e7cbb2571574f56f2cf12104ff1.tar.gz
Merge branch 'org.openembedded.dev' of git@git.openembedded.net:openembedded into org.openembedded.dev
Conflicts: recipes/musicpd/mpd_0.14.2.bb
Diffstat (limited to 'recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch')
-rw-r--r--recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch97
1 files changed, 97 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch b/recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch
new file mode 100644
index 0000000000..9ca0f2eab1
--- /dev/null
+++ b/recipes/linux/linux-omap-pm-2.6.29/dss2/0059-DSS2-DSI-configure-ENTER-EXIT_HS_MODE_LATENCY.patch
@@ -0,0 +1,97 @@
+From 750f7ddc0881834f3400c40e9a59d11f9427cf99 Mon Sep 17 00:00:00 2001
+From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+Date: Wed, 29 Apr 2009 17:26:30 +0300
+Subject: [PATCH 59/69] DSS2: DSI: configure ENTER/EXIT_HS_MODE_LATENCY
+
+---
+ drivers/video/omap2/dss/dsi.c | 49 ++++++++++++++++++++++++++++++++--------
+ 1 files changed, 39 insertions(+), 10 deletions(-)
+
+diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
+index d8df353..5225ed6 100644
+--- a/drivers/video/omap2/dss/dsi.c
++++ b/drivers/video/omap2/dss/dsi.c
+@@ -2309,15 +2309,26 @@ static int dsi_proto_config(struct omap_display *display)
+ return 0;
+ }
+
+-static void dsi_proto_timings(void)
+-{
+- int tlpx_half, tclk_zero, tclk_prepare, tclk_trail;
+- int tclk_pre, tclk_post;
+- int ddr_clk_pre, ddr_clk_post;
++static void dsi_proto_timings(struct omap_display *display)
++{
++ unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail;
++ unsigned tclk_pre, tclk_post;
++ unsigned ths_prepare, ths_prepare_ths_zero, ths_zero;
++ unsigned ths_trail, ths_exit;
++ unsigned ddr_clk_pre, ddr_clk_post;
++ unsigned enter_hs_mode_lat, exit_hs_mode_lat;
++ unsigned ths_eot;
+ u32 r;
+
++ r = dsi_read_reg(DSI_DSIPHY_CFG0);
++ ths_prepare = FLD_GET(r, 31, 24);
++ ths_prepare_ths_zero = FLD_GET(r, 23, 16);
++ ths_zero = ths_prepare_ths_zero - ths_prepare;
++ ths_trail = FLD_GET(r, 15, 8);
++ ths_exit = FLD_GET(r, 7, 0);
++
+ r = dsi_read_reg(DSI_DSIPHY_CFG1);
+- tlpx_half = FLD_GET(r, 22, 16);
++ tlpx = FLD_GET(r, 22, 16) * 2;
+ tclk_trail = FLD_GET(r, 15, 8);
+ tclk_zero = FLD_GET(r, 7, 0);
+
+@@ -2329,17 +2340,35 @@ static void dsi_proto_timings(void)
+ /* min 60ns + 52*UI */
+ tclk_post = ns2ddr(60) + 26;
+
+- ddr_clk_pre = (tclk_pre + tlpx_half*2 + tclk_zero + tclk_prepare) / 4;
+- ddr_clk_post = (tclk_post + tclk_trail) / 4;
++ ddr_clk_pre = DIV_ROUND_UP(tclk_pre + tlpx + tclk_zero + tclk_prepare,
++ 4);
++ ddr_clk_post = DIV_ROUND_UP(tclk_post + tclk_trail, 4);
+
+ r = dsi_read_reg(DSI_CLK_TIMING);
+ r = FLD_MOD(r, ddr_clk_pre, 15, 8);
+ r = FLD_MOD(r, ddr_clk_post, 7, 0);
+ dsi_write_reg(DSI_CLK_TIMING, r);
+
+- DSSDBG("ddr_clk_pre %d, ddr_clk_post %d\n",
++ DSSDBG("ddr_clk_pre %u, ddr_clk_post %u\n",
+ ddr_clk_pre,
+ ddr_clk_post);
++
++ /* ths_eot is 2 for 2 datalanes and 4 for 1 datalane */
++ if (display->hw_config.u.dsi.data1_lane != 0 &&
++ display->hw_config.u.dsi.data2_lane != 0)
++ ths_eot = 2;
++ else
++ ths_eot = 4;
++
++ enter_hs_mode_lat = DIV_ROUND_UP(tlpx + ths_prepare + ths_zero, 4) + 4;
++ exit_hs_mode_lat = DIV_ROUND_UP(ths_trail + ths_exit, 4) + 1 + ths_eot;
++
++ r = FLD_VAL(enter_hs_mode_lat, 31, 16) |
++ FLD_VAL(exit_hs_mode_lat, 15, 0);
++ dsi_write_reg(DSI_VM_TIMING7, r);
++
++ DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n",
++ enter_hs_mode_lat, exit_hs_mode_lat);
+ }
+
+
+@@ -3340,7 +3369,7 @@ static int dsi_display_init_dsi(struct omap_display *display)
+
+ _dsi_print_reset_status();
+
+- dsi_proto_timings();
++ dsi_proto_timings(display);
+ dsi_set_lp_clk_divisor();
+
+ if (1)
+--
+1.6.2.4
+