diff options
Diffstat (limited to 'recipes/linux/linux-omap-pm/dss2/0069-DSS2-DSI-Add-support-for-external-TE-signal.patch')
| -rw-r--r-- | recipes/linux/linux-omap-pm/dss2/0069-DSS2-DSI-Add-support-for-external-TE-signal.patch | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-pm/dss2/0069-DSS2-DSI-Add-support-for-external-TE-signal.patch b/recipes/linux/linux-omap-pm/dss2/0069-DSS2-DSI-Add-support-for-external-TE-signal.patch new file mode 100644 index 0000000000..e32f8ad04a --- /dev/null +++ b/recipes/linux/linux-omap-pm/dss2/0069-DSS2-DSI-Add-support-for-external-TE-signal.patch @@ -0,0 +1,110 @@ +From da9828702ab1cf29401f9a93f1e950505bfa2b76 Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@nokia.com> +Date: Fri, 22 May 2009 13:43:26 +0300 +Subject: [PATCH 069/146] DSS2: DSI: Add support for external TE signal + +I hope this can be removed when the DSI displays work properly. +--- + arch/arm/plat-omap/include/mach/display.h | 4 ++++ + drivers/video/omap2/dss/dsi.c | 29 +++++++++++++++++++---------- + 2 files changed, 23 insertions(+), 10 deletions(-) + +diff --git a/arch/arm/plat-omap/include/mach/display.h b/arch/arm/plat-omap/include/mach/display.h +index 31ebb96..dccc660 100644 +--- a/arch/arm/plat-omap/include/mach/display.h ++++ b/arch/arm/plat-omap/include/mach/display.h +@@ -201,6 +201,9 @@ struct omap_dss_display_config { + u8 data2_lane; + u8 data2_pol; + unsigned long ddr_clk_hz; ++ ++ bool ext_te; ++ u8 ext_te_gpio; + } dsi; + + struct { +@@ -256,6 +259,7 @@ struct omap_ctrl { + u16 x, u16 y, u16 w, u16 h); + + int (*enable_te)(struct omap_display *display, bool enable); ++ int (*wait_for_te)(struct omap_display *display); + + u8 (*get_rotate)(struct omap_display *display); + int (*set_rotate)(struct omap_display *display, u8 rotate); +diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c +index 057b057..f39c890 100644 +--- a/drivers/video/omap2/dss/dsi.c ++++ b/drivers/video/omap2/dss/dsi.c +@@ -274,7 +274,8 @@ static struct + enum omap_dss_update_mode user_update_mode; + enum omap_dss_update_mode target_update_mode; + enum omap_dss_update_mode update_mode; +- int use_te; ++ bool use_te; ++ bool use_ext_te; + int framedone_scheduled; /* helps to catch strange framedone bugs */ + + unsigned long cache_req_pck; +@@ -2734,6 +2735,9 @@ static void dsi_update_screen_dispc(struct omap_display *display, + + display->ctrl->setup_update(display, x, y, w, h); + ++ if (dsi.use_ext_te && display->ctrl->wait_for_te) ++ display->ctrl->wait_for_te(display); ++ + if (0) + dsi_vc_print_status(1); + +@@ -3001,19 +3005,24 @@ end: + + static void dsi_do_cmd_set_te(struct omap_display *display, bool enable) + { +- dsi.use_te = enable; ++ if (!display->hw_config.u.dsi.ext_te) ++ dsi.use_te = enable; ++ else ++ dsi.use_ext_te = enable; + + if (display->state != OMAP_DSS_DISPLAY_ACTIVE) + return; + + display->ctrl->enable_te(display, enable); + +- if (enable) { +- /* disable LP_RX_TO, so that we can receive TE. +- * Time to wait for TE is longer than the timer allows */ +- REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */ +- } else { +- REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */ ++ if (!display->hw_config.u.dsi.ext_te) { ++ if (enable) { ++ /* disable LP_RX_TO, so that we can receive TE. ++ * Time to wait for TE is longer than the timer allows */ ++ REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */ ++ } else { ++ REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */ ++ } + } + } + +@@ -3508,7 +3517,7 @@ static int dsi_display_enable(struct omap_display *display) + + display->state = OMAP_DSS_DISPLAY_ACTIVE; + +- if (dsi.use_te) ++ if (dsi.use_te || dsi.use_ext_te) + dsi_push_set_te(display, 1); + + dsi_push_set_update_mode(display, dsi.user_update_mode); +@@ -3641,7 +3650,7 @@ static int dsi_display_enable_te(struct omap_display *display, bool enable) + + static int dsi_display_get_te(struct omap_display *display) + { +- return dsi.use_te; ++ return dsi.use_te | dsi.use_ext_te; + } + + +-- +1.6.2.4 + |