From: Tomi Valkeinen Date: Thu, 25 Aug 2011 14:07:58 +0000 (+0300) Subject: OMAP: DSS2: HDMI: remove edid parsing X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2ea51fef8626debc6c3b73573cf99fae0593aa6a;p=linux-beck.git OMAP: DSS2: HDMI: remove edid parsing OMAPFB handles EDID parsing now, using the common helper functions in fbdev. We can remove the EDID parsing from HDMI driver. Cc: Mythri P K Signed-off-by: Tomi Valkeinen --- diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index 8a04ee18d58f..bf85cbadc804 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -70,9 +70,6 @@ static struct { struct hdmi_ip_data ip_data; int code; int mode; - u8 edid[HDMI_EDID_MAX_LENGTH]; - u8 edid_set; - bool custom_set; struct clk *sys_clk; } hdmi; @@ -162,8 +159,6 @@ static const int code_vesa[85] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 27, 28, -1, 33}; -static const u8 edid_header[8] = {0x0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0}; - static int hdmi_runtime_get(void) { int r; @@ -193,21 +188,6 @@ int hdmi_init_display(struct omap_dss_device *dssdev) return 0; } -static void copy_hdmi_to_dss_timings( - const struct hdmi_video_timings *hdmi_timings, - struct omap_video_timings *timings) -{ - timings->x_res = hdmi_timings->x_res; - timings->y_res = hdmi_timings->y_res; - timings->pixel_clock = hdmi_timings->pixel_clock; - timings->hbp = hdmi_timings->hbp; - timings->hfp = hdmi_timings->hfp; - timings->hsw = hdmi_timings->hsw; - timings->vbp = hdmi_timings->vbp; - timings->vfp = hdmi_timings->vfp; - timings->vsw = hdmi_timings->vsw; -} - static int get_timings_index(void) { int code; @@ -270,130 +250,6 @@ static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing) return cm; } -static void get_horz_vert_timing_info(int current_descriptor_addrs, u8 *edid , - struct omap_video_timings *timings) -{ - /* X and Y resolution */ - timings->x_res = (((edid[current_descriptor_addrs + 4] & 0xF0) << 4) | - edid[current_descriptor_addrs + 2]); - timings->y_res = (((edid[current_descriptor_addrs + 7] & 0xF0) << 4) | - edid[current_descriptor_addrs + 5]); - - timings->pixel_clock = ((edid[current_descriptor_addrs + 1] << 8) | - edid[current_descriptor_addrs]); - - timings->pixel_clock = 10 * timings->pixel_clock; - - /* HORIZONTAL FRONT PORCH */ - timings->hfp = edid[current_descriptor_addrs + 8] | - ((edid[current_descriptor_addrs + 11] & 0xc0) << 2); - /* HORIZONTAL SYNC WIDTH */ - timings->hsw = edid[current_descriptor_addrs + 9] | - ((edid[current_descriptor_addrs + 11] & 0x30) << 4); - /* HORIZONTAL BACK PORCH */ - timings->hbp = (((edid[current_descriptor_addrs + 4] & 0x0F) << 8) | - edid[current_descriptor_addrs + 3]) - - (timings->hfp + timings->hsw); - /* VERTICAL FRONT PORCH */ - timings->vfp = ((edid[current_descriptor_addrs + 10] & 0xF0) >> 4) | - ((edid[current_descriptor_addrs + 11] & 0x0f) << 2); - /* VERTICAL SYNC WIDTH */ - timings->vsw = (edid[current_descriptor_addrs + 10] & 0x0F) | - ((edid[current_descriptor_addrs + 11] & 0x03) << 4); - /* VERTICAL BACK PORCH */ - timings->vbp = (((edid[current_descriptor_addrs + 7] & 0x0F) << 8) | - edid[current_descriptor_addrs + 6]) - - (timings->vfp + timings->vsw); - -} - -/* Description : This function gets the resolution information from EDID */ -static void get_edid_timing_data(u8 *edid) -{ - u8 count; - u16 current_descriptor_addrs; - struct hdmi_cm cm; - struct omap_video_timings edid_timings; - - /* search block 0, there are 4 DTDs arranged in priority order */ - for (count = 0; count < EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR; count++) { - current_descriptor_addrs = - EDID_DESCRIPTOR_BLOCK0_ADDRESS + - count * EDID_TIMING_DESCRIPTOR_SIZE; - get_horz_vert_timing_info(current_descriptor_addrs, - edid, &edid_timings); - cm = hdmi_get_code(&edid_timings); - DSSDBG("Block0[%d] value matches code = %d , mode = %d\n", - count, cm.code, cm.mode); - if (cm.code == -1) { - continue; - } else { - hdmi.code = cm.code; - hdmi.mode = cm.mode; - DSSDBG("code = %d , mode = %d\n", - hdmi.code, hdmi.mode); - return; - } - } - if (edid[0x7e] != 0x00) { - for (count = 0; count < EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR; - count++) { - current_descriptor_addrs = - EDID_DESCRIPTOR_BLOCK1_ADDRESS + - count * EDID_TIMING_DESCRIPTOR_SIZE; - get_horz_vert_timing_info(current_descriptor_addrs, - edid, &edid_timings); - cm = hdmi_get_code(&edid_timings); - DSSDBG("Block1[%d] value matches code = %d, mode = %d", - count, cm.code, cm.mode); - if (cm.code == -1) { - continue; - } else { - hdmi.code = cm.code; - hdmi.mode = cm.mode; - DSSDBG("code = %d , mode = %d\n", - hdmi.code, hdmi.mode); - return; - } - } - } - - DSSINFO("no valid timing found , falling back to VGA\n"); - hdmi.code = 4; /* setting default value of 640 480 VGA */ - hdmi.mode = HDMI_DVI; -} - -static void hdmi_read_edid(struct omap_video_timings *dp) -{ - int ret = 0, code; - - memset(hdmi.edid, 0, HDMI_EDID_MAX_LENGTH); - - if (!hdmi.edid_set) - ret = hdmi.ip_data.ops->read_edid(&hdmi.ip_data, hdmi.edid, - HDMI_EDID_MAX_LENGTH); - if (ret > 0) { - if (!memcmp(hdmi.edid, edid_header, sizeof(edid_header))) { - /* search for timings of default resolution */ - get_edid_timing_data(hdmi.edid); - hdmi.edid_set = true; - } - } else { - DSSWARN("failed to read E-EDID\n"); - } - - if (!hdmi.edid_set) { - DSSINFO("fallback to VGA\n"); - hdmi.code = 4; /* setting default value of 640 480 VGA */ - hdmi.mode = HDMI_DVI; - } - - code = get_timings_index(); - - copy_hdmi_to_dss_timings(&cea_vesa_timings[code].timings, dp); - -} - static void update_hdmi_timings(struct hdmi_config *cfg, struct omap_video_timings *timings, int code) { @@ -479,13 +335,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev) dssdev->panel.timings.x_res, dssdev->panel.timings.y_res); - if (!hdmi.custom_set) { - DSSDBG("Read EDID as no EDID is not set on poweron\n"); - hdmi_read_edid(p); - } code = get_timings_index(); - copy_hdmi_to_dss_timings(&cea_vesa_timings[code].timings, - &dssdev->panel.timings); update_hdmi_timings(&hdmi.ip_data.cfg, p, code); phy = p->pixel_clock; @@ -547,8 +397,6 @@ static void hdmi_power_off(struct omap_dss_device *dssdev) hdmi.ip_data.ops->phy_disable(&hdmi.ip_data); hdmi.ip_data.ops->pll_disable(&hdmi.ip_data); hdmi_runtime_put(); - - hdmi.edid_set = 0; } int omapdss_hdmi_display_check_timing(struct omap_dss_device *dssdev, @@ -570,8 +418,6 @@ void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev) { struct hdmi_cm cm; - hdmi.custom_set = 1; - cm = hdmi_get_code(&dssdev->panel.timings); hdmi.code = cm.code; hdmi.mode = cm.mode; diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c index 624f170a5e92..79a3a5ac8f1c 100644 --- a/drivers/video/omap2/dss/hdmi_panel.c +++ b/drivers/video/omap2/dss/hdmi_panel.c @@ -40,13 +40,7 @@ static int hdmi_panel_probe(struct omap_dss_device *dssdev) dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | OMAP_DSS_LCD_IHS; - /* - * Initialize the timings to 640 * 480 - * This is only for framebuffer update not for TV timing setting - * Setting TV timing will be done only on enable - */ - dssdev->panel.timings.x_res = 640; - dssdev->panel.timings.y_res = 480; + dssdev->panel.timings = (struct omap_video_timings){640, 480, 25175, 96, 16, 48, 2 , 11, 31}; DSSDBG("hdmi_panel_probe x_res= %d y_res = %d\n", dssdev->panel.timings.x_res,