diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/venc.c | 65 |
1 files changed, 51 insertions, 14 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c index 5bd7788357b2..d58da6f32693 100644 --- a/drivers/gpu/drm/omapdrm/dss/venc.c +++ b/drivers/gpu/drm/omapdrm/dss/venc.c @@ -263,6 +263,12 @@ static const struct venc_config venc_config_pal_bdghi = { .fid_ext_start_y__fid_ext_offset_y = 0x01380005, }; +enum venc_videomode { + VENC_MODE_UNKNOWN, + VENC_MODE_PAL, + VENC_MODE_NTSC, +}; + static const struct videomode omap_dss_pal_vm = { .hactive = 720, .vactive = 574, @@ -297,6 +303,24 @@ static const struct videomode omap_dss_ntsc_vm = { DISPLAY_FLAGS_SYNC_NEGEDGE, }; +static enum venc_videomode venc_get_videomode(const struct videomode *vm) +{ + if (!(vm->flags & DISPLAY_FLAGS_INTERLACED)) + return VENC_MODE_UNKNOWN; + + if (vm->pixelclock == omap_dss_pal_vm.pixelclock && + vm->hactive == omap_dss_pal_vm.hactive && + vm->vactive == omap_dss_pal_vm.vactive) + return VENC_MODE_PAL; + + if (vm->pixelclock == omap_dss_ntsc_vm.pixelclock && + vm->hactive == omap_dss_ntsc_vm.hactive && + vm->vactive == omap_dss_ntsc_vm.vactive) + return VENC_MODE_NTSC; + + return VENC_MODE_UNKNOWN; +} + static struct { struct platform_device *pdev; void __iomem *base; @@ -423,14 +447,14 @@ static void venc_runtime_put(void) static const struct venc_config *venc_timings_to_config(struct videomode *vm) { - if (memcmp(&omap_dss_pal_vm, vm, sizeof(*vm)) == 0) + switch (venc_get_videomode(vm)) { + default: + WARN_ON_ONCE(1); + case VENC_MODE_PAL: return &venc_config_pal_trm; - - if (memcmp(&omap_dss_ntsc_vm, vm, sizeof(*vm)) == 0) + case VENC_MODE_NTSC: return &venc_config_ntsc_trm; - - BUG(); - return NULL; + } } static int venc_power_on(struct omap_dss_device *dssdev) @@ -541,15 +565,28 @@ static void venc_display_disable(struct omap_dss_device *dssdev) static void venc_set_timings(struct omap_dss_device *dssdev, struct videomode *vm) { + struct videomode actual_vm; + DSSDBG("venc_set_timings\n"); mutex_lock(&venc.venc_lock); + switch (venc_get_videomode(vm)) { + default: + WARN_ON_ONCE(1); + case VENC_MODE_PAL: + actual_vm = omap_dss_pal_vm; + break; + case VENC_MODE_NTSC: + actual_vm = omap_dss_ntsc_vm; + break; + } + /* Reset WSS data when the TV standard changes. */ - if (memcmp(&venc.vm, vm, sizeof(*vm))) + if (memcmp(&venc.vm, &actual_vm, sizeof(actual_vm))) venc.wss_data = 0; - venc.vm = *vm; + venc.vm = actual_vm; dispc_set_tv_pclk(13500000); @@ -561,13 +598,13 @@ static int venc_check_timings(struct omap_dss_device *dssdev, { DSSDBG("venc_check_timings\n"); - if (memcmp(&omap_dss_pal_vm, vm, sizeof(*vm)) == 0) + switch (venc_get_videomode(vm)) { + case VENC_MODE_PAL: + case VENC_MODE_NTSC: return 0; - - if (memcmp(&omap_dss_ntsc_vm, vm, sizeof(*vm)) == 0) - return 0; - - return -EINVAL; + default: + return -EINVAL; + } } static void venc_get_timings(struct omap_dss_device *dssdev, |