diff options
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 33 | ||||
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 39 | ||||
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_tcon.c | 5 |
5 files changed, 29 insertions, 90 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c index 3371635cd4d7..deb57435cc89 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c @@ -25,8 +25,13 @@ static void fsl_dcu_drm_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state) { + struct drm_device *dev = crtc->dev; + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; struct drm_pending_vblank_event *event = crtc->state->event; + regmap_write(fsl_dev->regmap, + DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); + if (event) { crtc->state->event = NULL; @@ -39,11 +44,15 @@ static void fsl_dcu_drm_crtc_atomic_flush(struct drm_crtc *crtc, } } -static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) +static void fsl_dcu_drm_crtc_atomic_disable(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) { struct drm_device *dev = crtc->dev; struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + /* always disable planes on the CRTC */ + drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, true); + drm_crtc_vblank_off(crtc); regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, @@ -51,6 +60,7 @@ static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) DCU_MODE_DCU_MODE(DCU_MODE_OFF)); regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); + clk_disable_unprepare(fsl_dev->pix_clk); } static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) @@ -58,6 +68,7 @@ static void fsl_dcu_drm_crtc_enable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; + clk_prepare_enable(fsl_dev->pix_clk); regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, DCU_MODE_DCU_MODE_MASK, DCU_MODE_DCU_MODE(DCU_MODE_NORMAL)); @@ -116,14 +127,12 @@ static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) DCU_THRESHOLD_LS_BF_VS(BF_VS_VAL) | DCU_THRESHOLD_OUT_BUF_HIGH(BUF_MAX_VAL) | DCU_THRESHOLD_OUT_BUF_LOW(BUF_MIN_VAL)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); return; } static const struct drm_crtc_helper_funcs fsl_dcu_drm_crtc_helper_funcs = { + .atomic_disable = fsl_dcu_drm_crtc_atomic_disable, .atomic_flush = fsl_dcu_drm_crtc_atomic_flush, - .disable = fsl_dcu_drm_disable_crtc, .enable = fsl_dcu_drm_crtc_enable, .mode_set_nofb = fsl_dcu_drm_crtc_mode_set_nofb, }; diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 7882387f9bff..cc2fde2ae5ef 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -59,8 +59,6 @@ static int fsl_dcu_drm_irq_init(struct drm_device *dev) regmap_write(fsl_dev->regmap, DCU_INT_STATUS, 0); regmap_write(fsl_dev->regmap, DCU_INT_MASK, ~0); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); return ret; } @@ -139,8 +137,6 @@ static irqreturn_t fsl_dcu_drm_irq(int irq, void *arg) drm_handle_vblank(dev, 0); regmap_write(fsl_dev->regmap, DCU_INT_STATUS, int_status); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); return IRQ_HANDLED; } @@ -267,12 +263,8 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) return ret; } - ret = clk_prepare_enable(fsl_dev->pix_clk); - if (ret < 0) { - dev_err(dev, "failed to enable pix clk\n"); - return ret; - } - + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); fsl_dcu_drm_init_planes(fsl_dev->drm); drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state); @@ -330,6 +322,7 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) const char *pix_clk_in_name; const struct of_device_id *id; int ret; + u8 div_ratio_shift = 0; fsl_dev = devm_kzalloc(dev, sizeof(*fsl_dev), GFP_KERNEL); if (!fsl_dev) @@ -382,29 +375,26 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) pix_clk_in = fsl_dev->clk; } + if (of_property_read_bool(dev->of_node, "big-endian")) + div_ratio_shift = 24; + pix_clk_in_name = __clk_get_name(pix_clk_in); snprintf(pix_clk_name, sizeof(pix_clk_name), "%s_pix", pix_clk_in_name); fsl_dev->pix_clk = clk_register_divider(dev, pix_clk_name, pix_clk_in_name, 0, base + DCU_DIV_RATIO, - 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL); + div_ratio_shift, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL); if (IS_ERR(fsl_dev->pix_clk)) { dev_err(dev, "failed to register pix clk\n"); ret = PTR_ERR(fsl_dev->pix_clk); goto disable_clk; } - ret = clk_prepare_enable(fsl_dev->pix_clk); - if (ret < 0) { - dev_err(dev, "failed to enable pix clk\n"); - goto unregister_pix_clk; - } - fsl_dev->tcon = fsl_tcon_init(dev); drm = drm_dev_alloc(driver, dev); - if (!drm) { - ret = -ENOMEM; - goto disable_pix_clk; + if (IS_ERR(drm)) { + ret = PTR_ERR(drm); + goto unregister_pix_clk; } fsl_dev->dev = dev; @@ -425,8 +415,6 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) unref: drm_dev_unref(drm); -disable_pix_clk: - clk_disable_unprepare(fsl_dev->pix_clk); unregister_pix_clk: clk_unregister(fsl_dev->pix_clk); disable_clk: @@ -439,7 +427,6 @@ static int fsl_dcu_drm_remove(struct platform_device *pdev) struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev); clk_disable_unprepare(fsl_dev->clk); - clk_disable_unprepare(fsl_dev->pix_clk); clk_unregister(fsl_dev->pix_clk); drm_put_dev(fsl_dev->drm); diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index e50467a0deb0..a99f48847420 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -160,34 +160,14 @@ static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane, DCU_LAYER_POST_SKIP(0) | DCU_LAYER_PRE_SKIP(0)); } - regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, - DCU_MODE_DCU_MODE_MASK, - DCU_MODE_DCU_MODE(DCU_MODE_NORMAL)); - regmap_write(fsl_dev->regmap, - DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); return; } -static void -fsl_dcu_drm_plane_cleanup_fb(struct drm_plane *plane, - const struct drm_plane_state *new_state) -{ -} - -static int -fsl_dcu_drm_plane_prepare_fb(struct drm_plane *plane, - const struct drm_plane_state *new_state) -{ - return 0; -} - static const struct drm_plane_helper_funcs fsl_dcu_drm_plane_helper_funcs = { .atomic_check = fsl_dcu_drm_plane_atomic_check, .atomic_disable = fsl_dcu_drm_plane_atomic_disable, .atomic_update = fsl_dcu_drm_plane_atomic_update, - .cleanup_fb = fsl_dcu_drm_plane_cleanup_fb, - .prepare_fb = fsl_dcu_drm_plane_prepare_fb, }; static void fsl_dcu_drm_plane_destroy(struct drm_plane *plane) @@ -226,11 +206,6 @@ void fsl_dcu_drm_init_planes(struct drm_device *dev) for (j = 1; j <= fsl_dev->soc->layer_regs; j++) regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0); } - regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, - DCU_MODE_DCU_MODE_MASK, - DCU_MODE_DCU_MODE(DCU_MODE_OFF)); - regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, - DCU_UPDATE_MODE_READREG); } struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 26edcc899712..e1dd75b18118 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -20,38 +20,6 @@ #include "fsl_dcu_drm_drv.h" #include "fsl_tcon.h" -static int -fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, - struct drm_crtc_state *crtc_state, - struct drm_connector_state *conn_state) -{ - return 0; -} - -static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_disable(fsl_dev->tcon); -} - -static void fsl_dcu_drm_encoder_enable(struct drm_encoder *encoder) -{ - struct drm_device *dev = encoder->dev; - struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; - - if (fsl_dev->tcon) - fsl_tcon_bypass_enable(fsl_dev->tcon); -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .atomic_check = fsl_dcu_drm_encoder_atomic_check, - .disable = fsl_dcu_drm_encoder_disable, - .enable = fsl_dcu_drm_encoder_enable, -}; - static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); @@ -68,13 +36,16 @@ int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev, int ret; encoder->possible_crtcs = 1; + + /* Use bypass mode for parallel RGB/LVDS encoder */ + if (fsl_dev->tcon) + fsl_tcon_bypass_enable(fsl_dev->tcon); + ret = drm_encoder_init(fsl_dev->drm, encoder, &encoder_funcs, DRM_MODE_ENCODER_LVDS, NULL); if (ret < 0) return ret; - drm_encoder_helper_add(encoder, &encoder_helper_funcs); - return 0; } diff --git a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c index bca09ea24632..3194e544ee27 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c @@ -57,10 +57,7 @@ static int fsl_tcon_init_regmap(struct device *dev, tcon->regs = devm_regmap_init_mmio(dev, regs, &fsl_tcon_regmap_config); - if (IS_ERR(tcon->regs)) - return PTR_ERR(tcon->regs); - - return 0; + return PTR_ERR_OR_ZERO(tcon->regs); } struct fsl_tcon *fsl_tcon_init(struct device *dev) |
