diff options
Diffstat (limited to 'drivers/gpu/drm/stm/ltdc.c')
| -rw-r--r-- | drivers/gpu/drm/stm/ltdc.c | 103 |
1 files changed, 56 insertions, 47 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index c2815e8ae1da..df585fe64f61 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -636,38 +636,13 @@ static void ltdc_crtc_atomic_flush(struct drm_crtc *crtc, } } -static const struct drm_crtc_helper_funcs ltdc_crtc_helper_funcs = { - .mode_valid = ltdc_crtc_mode_valid, - .mode_fixup = ltdc_crtc_mode_fixup, - .mode_set_nofb = ltdc_crtc_mode_set_nofb, - .atomic_flush = ltdc_crtc_atomic_flush, - .atomic_enable = ltdc_crtc_atomic_enable, - .atomic_disable = ltdc_crtc_atomic_disable, -}; - -static int ltdc_crtc_enable_vblank(struct drm_crtc *crtc) -{ - struct ltdc_device *ldev = crtc_to_ltdc(crtc); - - DRM_DEBUG_DRIVER("\n"); - reg_set(ldev->regs, LTDC_IER, IER_LIE); - - return 0; -} - -static void ltdc_crtc_disable_vblank(struct drm_crtc *crtc) -{ - struct ltdc_device *ldev = crtc_to_ltdc(crtc); - - DRM_DEBUG_DRIVER("\n"); - reg_clear(ldev->regs, LTDC_IER, IER_LIE); -} - -bool ltdc_crtc_scanoutpos(struct drm_device *ddev, unsigned int pipe, - bool in_vblank_irq, int *vpos, int *hpos, - ktime_t *stime, ktime_t *etime, - const struct drm_display_mode *mode) +static bool ltdc_crtc_get_scanout_position(struct drm_crtc *crtc, + bool in_vblank_irq, + int *vpos, int *hpos, + ktime_t *stime, ktime_t *etime, + const struct drm_display_mode *mode) { + struct drm_device *ddev = crtc->dev; struct ltdc_device *ldev = ddev->dev_private; int line, vactive_start, vactive_end, vtotal; @@ -710,6 +685,39 @@ bool ltdc_crtc_scanoutpos(struct drm_device *ddev, unsigned int pipe, return true; } +static const struct drm_crtc_helper_funcs ltdc_crtc_helper_funcs = { + .mode_valid = ltdc_crtc_mode_valid, + .mode_fixup = ltdc_crtc_mode_fixup, + .mode_set_nofb = ltdc_crtc_mode_set_nofb, + .atomic_flush = ltdc_crtc_atomic_flush, + .atomic_enable = ltdc_crtc_atomic_enable, + .atomic_disable = ltdc_crtc_atomic_disable, + .get_scanout_position = ltdc_crtc_get_scanout_position, +}; + +static int ltdc_crtc_enable_vblank(struct drm_crtc *crtc) +{ + struct ltdc_device *ldev = crtc_to_ltdc(crtc); + struct drm_crtc_state *state = crtc->state; + + DRM_DEBUG_DRIVER("\n"); + + if (state->enable) + reg_set(ldev->regs, LTDC_IER, IER_LIE); + else + return -EPERM; + + return 0; +} + +static void ltdc_crtc_disable_vblank(struct drm_crtc *crtc) +{ + struct ltdc_device *ldev = crtc_to_ltdc(crtc); + + DRM_DEBUG_DRIVER("\n"); + reg_clear(ldev->regs, LTDC_IER, IER_LIE); +} + static const struct drm_crtc_funcs ltdc_crtc_funcs = { .destroy = drm_crtc_cleanup, .set_config = drm_atomic_helper_set_config, @@ -719,6 +727,7 @@ static const struct drm_crtc_funcs ltdc_crtc_funcs = { .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, .enable_vblank = ltdc_crtc_enable_vblank, .disable_vblank = ltdc_crtc_disable_vblank, + .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, .gamma_set = drm_atomic_helper_legacy_gamma_set, }; @@ -1100,7 +1109,7 @@ static int ltdc_encoder_init(struct drm_device *ddev, struct drm_bridge *bridge) drm_encoder_helper_add(encoder, <dc_encoder_helper_funcs); - ret = drm_bridge_attach(encoder, bridge, NULL); + ret = drm_bridge_attach(encoder, bridge, NULL, 0); if (ret) { drm_encoder_cleanup(encoder); return -EINVAL; @@ -1146,12 +1155,14 @@ static int ltdc_get_caps(struct drm_device *ddev) ldev->caps.pad_max_freq_hz = 90000000; if (ldev->caps.hw_version == HWVER_10200) ldev->caps.pad_max_freq_hz = 65000000; + ldev->caps.nb_irq = 2; break; case HWVER_20101: ldev->caps.reg_ofs = REG_OFS_4; ldev->caps.pix_fmt_hw = ltdc_pix_fmt_a1; ldev->caps.non_alpha_only_l1 = false; ldev->caps.pad_max_freq_hz = 150000000; + ldev->caps.nb_irq = 4; break; default: return -ENODEV; @@ -1251,13 +1262,21 @@ int ltdc_load(struct drm_device *ddev) reg_clear(ldev->regs, LTDC_IER, IER_LIE | IER_RRIE | IER_FUIE | IER_TERRIE); - for (i = 0; i < MAX_IRQ; i++) { + ret = ltdc_get_caps(ddev); + if (ret) { + DRM_ERROR("hardware identifier (0x%08x) not supported!\n", + ldev->caps.hw_version); + goto err; + } + + DRM_DEBUG_DRIVER("ltdc hw version 0x%08x\n", ldev->caps.hw_version); + + for (i = 0; i < ldev->caps.nb_irq; i++) { irq = platform_get_irq(pdev, i); - if (irq == -EPROBE_DEFER) + if (irq < 0) { + ret = irq; goto err; - - if (irq < 0) - continue; + } ret = devm_request_threaded_irq(dev, irq, ltdc_irq, ltdc_irq_thread, IRQF_ONESHOT, @@ -1268,16 +1287,6 @@ int ltdc_load(struct drm_device *ddev) } } - - ret = ltdc_get_caps(ddev); - if (ret) { - DRM_ERROR("hardware identifier (0x%08x) not supported!\n", - ldev->caps.hw_version); - goto err; - } - - DRM_DEBUG_DRIVER("ltdc hw version 0x%08x\n", ldev->caps.hw_version); - /* Add endpoints panels or bridges if any */ for (i = 0; i < MAX_ENDPOINTS; i++) { if (panel[i]) { |