From 02c5dd985ddc5407aa9cc7e0f4456ca63b294f16 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Wed, 4 Mar 2009 19:36:01 +0800 Subject: [PATCH] drm/i915: Fix TV get_modes to return modes count The get_modes hook must return the number of modes added. This also fixes TV mode's clock calculation int overflow issue, and use 0.01 precision for mode refresh validation. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_tv.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index 0e606855c858..08c4034c44c3 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1082,7 +1082,7 @@ intel_tv_mode_valid(struct drm_connector *connector, struct drm_display_mode *mo const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output); /* Ensure TV refresh is close to desired refresh */ - if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode)) < 1) + if (tv_mode && abs(tv_mode->refresh - drm_mode_vrefresh(mode)) < 10) return MODE_OK; return MODE_CLOCK_RANGE; } @@ -1495,7 +1495,8 @@ intel_tv_get_modes(struct drm_connector *connector) struct drm_display_mode *mode_ptr; struct intel_output *intel_output = to_intel_output(connector); const struct tv_mode *tv_mode = intel_tv_mode_find(intel_output); - int j; + int j, count = 0; + u64 tmp; for (j = 0; j < sizeof(input_res_table) / sizeof(input_res_table[0]); j++) { @@ -1510,8 +1511,9 @@ intel_tv_get_modes(struct drm_connector *connector) && !tv_mode->component_only)) continue; - mode_ptr = drm_calloc(1, sizeof(struct drm_display_mode), - DRM_MEM_DRIVER); + mode_ptr = drm_mode_create(connector->dev); + if (!mode_ptr) + continue; strncpy(mode_ptr->name, input->name, DRM_DISPLAY_MODE_LEN); mode_ptr->hdisplay = hactive_s; @@ -1528,15 +1530,17 @@ intel_tv_get_modes(struct drm_connector *connector) mode_ptr->vsync_end = mode_ptr->vsync_start + 1; mode_ptr->vtotal = vactive_s + 33; - mode_ptr->clock = (int) (tv_mode->refresh * - mode_ptr->vtotal * - mode_ptr->htotal / 1000) / 1000; + tmp = (u64) tv_mode->refresh * mode_ptr->vtotal; + tmp *= mode_ptr->htotal; + tmp = div_u64(tmp, 1000000); + mode_ptr->clock = (int) tmp; mode_ptr->type = DRM_MODE_TYPE_DRIVER; drm_mode_probed_add(connector, mode_ptr); + count++; } - return 0; + return count; } static void -- 2.20.1