dri-devel April 2022

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[PATCH v2] phy: mediatek: phy-mtk-mipi-dsi: Simplify with dev_err_probe()
by AngeloGioacchino Del Regno 13 Apr '22

13 Apr '22

Use the dev_err_probe() helper to simplify error handling during probe. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> --- v2: Sorry, v1 was only partial as I have accidentally sent the wrong patch file. Fixed for v2. drivers/phy/mediatek/phy-mtk-mipi-dsi.c | 29 +++++++++---------------- 1 file changed, 10 insertions(+), 19 deletions(-) diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c index 67b005d5b9e3..28506932bd91 100644 --- a/drivers/phy/mediatek/phy-mtk-mipi-dsi.c +++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi.c @@ -154,11 +154,9 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) return PTR_ERR(mipi_tx->regs); ref_clk = devm_clk_get(dev, NULL); - if (IS_ERR(ref_clk)) { - ret = PTR_ERR(ref_clk); - dev_err(dev, "Failed to get reference clock: %d\n", ret); - return ret; - } + if (IS_ERR(ref_clk)) + return dev_err_probe(dev, PTR_ERR(ref_clk), + "Failed to get reference clock\n"); ret = of_property_read_u32(dev->of_node, "drive-strength-microamp", &mipi_tx->mipitx_drive); @@ -178,27 +176,20 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev) ret = of_property_read_string(dev->of_node, "clock-output-names", &clk_init.name); - if (ret < 0) { - dev_err(dev, "Failed to read clock-output-names: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to read clock-output-names\n"); clk_init.ops = mipi_tx->driver_data->mipi_tx_clk_ops; mipi_tx->pll_hw.init = &clk_init; mipi_tx->pll = devm_clk_register(dev, &mipi_tx->pll_hw); - if (IS_ERR(mipi_tx->pll)) { - ret = PTR_ERR(mipi_tx->pll); - dev_err(dev, "Failed to register PLL: %d\n", ret); - return ret; - } + if (IS_ERR(mipi_tx->pll)) + return dev_err_probe(dev, PTR_ERR(mipi_tx->pll), "Failed to register PLL\n"); phy = devm_phy_create(dev, NULL, &mtk_mipi_tx_ops); - if (IS_ERR(phy)) { - ret = PTR_ERR(phy); - dev_err(dev, "Failed to create MIPI D-PHY: %d\n", ret); - return ret; - } + if (IS_ERR(phy)) + return dev_err_probe(dev, PTR_ERR(phy), "Failed to create MIPI D-PHY\n"); + phy_set_drvdata(phy, mipi_tx); phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); -- 2.35.1

2 1

[PATCH] phy: mediatek: phy-mtk-hdmi: Simplify with dev_err_probe()
by AngeloGioacchino Del Regno 13 Apr '22

13 Apr '22

Use the dev_err_probe() helper to simplify error handling during probe. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno(a)collabora.com> --- drivers/phy/mediatek/phy-mtk-hdmi.c | 50 +++++++++++------------------ 1 file changed, 19 insertions(+), 31 deletions(-) diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.c b/drivers/phy/mediatek/phy-mtk-hdmi.c index 5fb4217fb8e0..d4bd419abc3c 100644 --- a/drivers/phy/mediatek/phy-mtk-hdmi.c +++ b/drivers/phy/mediatek/phy-mtk-hdmi.c @@ -120,20 +120,16 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev) return PTR_ERR(hdmi_phy->regs); ref_clk = devm_clk_get(dev, "pll_ref"); - if (IS_ERR(ref_clk)) { - ret = PTR_ERR(ref_clk); - dev_err(&pdev->dev, "Failed to get PLL reference clock: %d\n", - ret); - return ret; - } + if (IS_ERR(ref_clk)) + return dev_err_probe(dev, PTR_ERR(ref_clk), + "Failed to get PLL reference clock\n"); + ref_clk_name = __clk_get_name(ref_clk); ret = of_property_read_string(dev->of_node, "clock-output-names", &clk_init.name); - if (ret < 0) { - dev_err(dev, "Failed to read clock-output-names: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to read clock-output-names\n"); hdmi_phy->dev = dev; hdmi_phy->conf = @@ -141,25 +137,19 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev) mtk_hdmi_phy_clk_get_data(hdmi_phy, &clk_init); hdmi_phy->pll_hw.init = &clk_init; hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw); - if (IS_ERR(hdmi_phy->pll)) { - ret = PTR_ERR(hdmi_phy->pll); - dev_err(dev, "Failed to register PLL: %d\n", ret); - return ret; - } + if (IS_ERR(hdmi_phy->pll)) + return dev_err_probe(dev, PTR_ERR(hdmi_phy->pll), + "Failed to register PLL\n"); ret = of_property_read_u32(dev->of_node, "mediatek,ibias", &hdmi_phy->ibias); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get ibias: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to get ibias\n"); ret = of_property_read_u32(dev->of_node, "mediatek,ibias_up", &hdmi_phy->ibias_up); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to get ibias up: %d\n", ret); - return ret; - } + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to get ibias_up\n"); dev_info(dev, "Using default TX DRV impedance: 4.2k/36\n"); hdmi_phy->drv_imp_clk = 0x30; @@ -168,17 +158,15 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev) hdmi_phy->drv_imp_d0 = 0x30; phy = devm_phy_create(dev, NULL, mtk_hdmi_phy_dev_get_ops(hdmi_phy)); - if (IS_ERR(phy)) { - dev_err(dev, "Failed to create HDMI PHY\n"); - return PTR_ERR(phy); - } + if (IS_ERR(phy)) + return dev_err_probe(dev, PTR_ERR(phy), "Cannot create HDMI PHY\n"); + phy_set_drvdata(phy, hdmi_phy); phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); - if (IS_ERR(phy_provider)) { - dev_err(dev, "Failed to register HDMI PHY\n"); - return PTR_ERR(phy_provider); - } + if (IS_ERR(phy_provider)) + return dev_err_probe(dev, PTR_ERR(phy_provider), + "Failed to register HDMI PHY\n"); if (hdmi_phy->conf->pll_default_off) hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy); -- 2.35.1

2 1

[PATCH] drm/tegra: remove useless if check before kfree
by Bernard Zhao 13 Apr '22

13 Apr '22

This patch remove useless if check before kfree. Signed-off-by: Bernard Zhao <zhaojunkui2008(a)126.com> --- drivers/gpu/drm/tegra/submit.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/tegra/submit.c b/drivers/gpu/drm/tegra/submit.c index 6d6dd8c35475..54ac31bc80f6 100644 --- a/drivers/gpu/drm/tegra/submit.c +++ b/drivers/gpu/drm/tegra/submit.c @@ -639,8 +639,7 @@ int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data, kfree(job_data->used_mappings); } - if (job_data) - kfree(job_data); + kfree(job_data); put_bo: gather_bo_put(&bo->base); unlock: -- 2.33.1

2 1

[PATCH] gpu/host1x: remove useless if(ptr) check to kfree
by Bernard Zhao 13 Apr '22

13 Apr '22

This patch remove useless if(ptr) check to kfree. Signed-off-by: Bernard Zhao <zhaojunkui2008(a)126.com> --- drivers/gpu/host1x/fence.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/host1x/fence.c b/drivers/gpu/host1x/fence.c index ecab72882192..05b36bfc8b74 100644 --- a/drivers/gpu/host1x/fence.c +++ b/drivers/gpu/host1x/fence.c @@ -93,8 +93,7 @@ static void host1x_syncpt_fence_release(struct dma_fence *f) { struct host1x_syncpt_fence *sf = to_host1x_fence(f); - if (sf->waiter) - kfree(sf->waiter); + kfree(sf->waiter); dma_fence_free(f); } -- 2.33.1

2 1

[PULL] drm-intel-fixes
by Joonas Lahtinen 13 Apr '22

13 Apr '22

Hi Dave & Daniel, Just one fix towards v5.18-rc3. Fix to align code with drm-tip to make sure full graphics IP version is used for legacy mmap disable check. Regards, Joonas *** drm-intel-fixes-2022-04-13: - Correct legacy mmap disabling to use GRAPHICS_VER_FULL The following changes since commit ce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e: Linux 5.18-rc2 (2022-04-10 14:21:36 -1000) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-intel tags/drm-intel-fixes-2022-04-13 for you to fetch changes up to 1acb34e7dd7720a1fff00cbd4d000ec3219dc9d6: drm/i915: Sunset igpu legacy mmap support based on GRAPHICS_VER_FULL (2022-04-11 09:11:21 +0300) ---------------------------------------------------------------- - Correct legacy mmap disabling to use GRAPHICS_VER_FULL ---------------------------------------------------------------- Matt Roper (1): drm/i915: Sunset igpu legacy mmap support based on GRAPHICS_VER_FULL drivers/gpu/drm/i915/gem/i915_gem_mman.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

1 0

[PATCH] media: mediatek: vcodec: add vp9 decoder driver for mt8186
by Yunfei Dong 13 Apr '22

13 Apr '22

From: Yunfei Dong <yunfei.dong(a)mediatek.corp-partner.google.com> Add vp9 single core decode driver to support mt8186. Signed-off-by: Mingjia Zhang <mingjia.zhang(a)mediatek.com> Signed-off-by: Xiaoyong Lu <xiaoyong.lu(a)mediatek.com> Signed-off-by: Yunfei Dong <yunfei.dong(a)mediatek.com> --- This patch depends on "support mt8195 decoder"[1] [1] https://patchwork.kernel.org/project/linux-mediatek/cover/20220413035410.29… --- .../vcodec/vdec/vdec_vp9_req_lat_if.c | 197 +++++++++++++++++- .../platform/mediatek/vcodec/vdec_drv_if.c | 2 +- 2 files changed, 195 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c index 4b20d6e09809..8373b7ea3d44 100644 --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c @@ -439,6 +439,8 @@ struct vdec_vp9_slice_ref { * @init_vsi: vsi used for initialized VP9 instance * @vsi: vsi used for decoding/flush ... * @core_vsi: vsi used for Core stage + * + * @sc_pfc: per frame context single core * @counts_map: used map to counts_helper * @counts_helper: counts table according to newest kernel spec */ @@ -487,6 +489,7 @@ struct vdec_vp9_slice_instance { }; struct vdec_vp9_slice_vsi *core_vsi; + struct vdec_vp9_slice_pfc sc_pfc; struct vdec_vp9_slice_counts_map counts_map; struct v4l2_vp9_frame_symbol_counts counts_helper; }; @@ -692,6 +695,25 @@ static int vdec_vp9_slice_tile_offset(int idx, int mi_num, int tile_log2) return offset < mi_num ? offset : mi_num; } +static +int vdec_vp9_slice_setup_single_from_src_to_dst(struct vdec_vp9_slice_instance *instance) +{ + struct vb2_v4l2_buffer *src; + struct vb2_v4l2_buffer *dst; + + src = v4l2_m2m_next_src_buf(instance->ctx->m2m_ctx); + if (!src) + return -EINVAL; + + dst = v4l2_m2m_next_dst_buf(instance->ctx->m2m_ctx); + if (!dst) + return -EINVAL; + + v4l2_m2m_buf_copy_metadata(src, dst, true); + + return 0; +} + static int vdec_vp9_slice_setup_lat_from_src_buf(struct vdec_vp9_slice_instance *instance, struct vdec_lat_buf *lat_buf) { @@ -1568,6 +1590,33 @@ static int vdec_vp9_slice_update_prob(struct vdec_vp9_slice_instance *instance, return 0; } +static int vdec_vp9_slice_update_single(struct vdec_vp9_slice_instance *instance, + struct vdec_vp9_slice_pfc *pfc) +{ + struct vdec_vp9_slice_vsi *vsi; + + vsi = &pfc->vsi; + memcpy(&pfc->state[0], &vsi->state, sizeof(vsi->state)); + + mtk_vcodec_debug(instance, "Frame %u Y_CRC %08x %08x %08x %08x\n", + pfc->seq, + vsi->state.crc[0], vsi->state.crc[1], + vsi->state.crc[2], vsi->state.crc[3]); + mtk_vcodec_debug(instance, "Frame %u C_CRC %08x %08x %08x %08x\n", + pfc->seq, + vsi->state.crc[4], vsi->state.crc[5], + vsi->state.crc[6], vsi->state.crc[7]); + + vdec_vp9_slice_update_prob(instance, vsi); + + instance->width = vsi->frame.uh.frame_width; + instance->height = vsi->frame.uh.frame_height; + instance->frame_type = vsi->frame.uh.frame_type; + instance->show_frame = vsi->frame.uh.show_frame; + + return 0; +} + static int vdec_vp9_slice_update_lat(struct vdec_vp9_slice_instance *instance, struct vdec_lat_buf *lat_buf, struct vdec_vp9_slice_pfc *pfc) @@ -1691,6 +1740,40 @@ static int vdec_vp9_slice_setup_core_buffer(struct vdec_vp9_slice_instance *inst return 0; } +static void vdec_vp9_slice_setup_single_buffer(struct vdec_vp9_slice_instance *instance, + struct vdec_vp9_slice_pfc *pfc, + struct vdec_vp9_slice_vsi *vsi, + struct mtk_vcodec_mem *bs, + struct vdec_fb *fb) +{ + int i; + + vsi->bs.buf.dma_addr = bs->dma_addr; + vsi->bs.buf.size = bs->size; + vsi->bs.frame.dma_addr = bs->dma_addr; + vsi->bs.frame.size = bs->size; + + for (i = 0; i < 2; i++) { + vsi->mv[i].dma_addr = instance->mv[i].dma_addr; + vsi->mv[i].size = instance->mv[i].size; + } + for (i = 0; i < 2; i++) { + vsi->seg[i].dma_addr = instance->seg[i].dma_addr; + vsi->seg[i].size = instance->seg[i].size; + } + vsi->tile.dma_addr = instance->tile.dma_addr; + vsi->tile.size = instance->tile.size; + vsi->prob.dma_addr = instance->prob.dma_addr; + vsi->prob.size = instance->prob.size; + vsi->counts.dma_addr = instance->counts.dma_addr; + vsi->counts.size = instance->counts.size; + + vsi->row_info.buf = 0; + vsi->row_info.size = 0; + + vdec_vp9_slice_setup_core_buffer(instance, pfc, vsi, fb, NULL); +} + static int vdec_vp9_slice_setup_core(struct vdec_vp9_slice_instance *instance, struct vdec_fb *fb, struct vdec_lat_buf *lat_buf, @@ -1717,6 +1800,43 @@ static int vdec_vp9_slice_setup_core(struct vdec_vp9_slice_instance *instance, return ret; } +static int vdec_vp9_slice_setup_single(struct vdec_vp9_slice_instance *instance, + struct mtk_vcodec_mem *bs, + struct vdec_fb *fb, + struct vdec_vp9_slice_pfc *pfc) +{ + struct vdec_vp9_slice_vsi *vsi = &pfc->vsi; + int ret; + + ret = vdec_vp9_slice_setup_single_from_src_to_dst(instance); + if (ret) + goto err; + + ret = vdec_vp9_slice_setup_pfc(instance, pfc); + if (ret) + goto err; + + ret = vdec_vp9_slice_alloc_working_buffer(instance, vsi); + if (ret) + goto err; + + vdec_vp9_slice_setup_single_buffer(instance, pfc, vsi, bs, fb); + vdec_vp9_slice_setup_seg_buffer(instance, vsi, &instance->seg[0]); + + ret = vdec_vp9_slice_setup_prob_buffer(instance, vsi); + if (ret) + goto err; + + ret = vdec_vp9_slice_setup_tile_buffer(instance, vsi, bs); + if (ret) + goto err; + + return 0; + +err: + return ret; +} + static int vdec_vp9_slice_update_core(struct vdec_vp9_slice_instance *instance, struct vdec_lat_buf *lat_buf, struct vdec_vp9_slice_pfc *pfc) @@ -1814,8 +1934,8 @@ static int vdec_vp9_slice_flush(void *h_vdec, struct mtk_vcodec_mem *bs, struct vdec_vp9_slice_instance *instance = h_vdec; mtk_vcodec_debug(instance, "flush ...\n"); - - vdec_msg_queue_wait_lat_buf_full(&instance->ctx->msg_queue); + if (instance->ctx->dev->vdec_pdata->hw_arch != MTK_VDEC_PURE_SINGLE_CORE) + vdec_msg_queue_wait_lat_buf_full(&instance->ctx->msg_queue); return vpu_dec_reset(&instance->vpu); } @@ -1868,6 +1988,63 @@ static int vdec_vp9_slice_get_param(void *h_vdec, enum vdec_get_param_type type, return 0; } +static int vdec_vp9_slice_single_decode(void *h_vdec, struct mtk_vcodec_mem *bs, + struct vdec_fb *fb, bool *res_chg) +{ + struct vdec_vp9_slice_instance *instance = h_vdec; + struct vdec_vp9_slice_pfc *pfc = &(instance->sc_pfc); + struct vdec_vp9_slice_vsi *vsi; + struct mtk_vcodec_ctx *ctx; + int ret; + + if (!instance || !instance->ctx) + return -EINVAL; + ctx = instance->ctx; + + /* bs NULL means flush decoder */ + if (!bs) + return vdec_vp9_slice_flush(h_vdec, bs, fb, res_chg); + + fb = ctx->dev->vdec_pdata->get_cap_buffer(ctx); + if (!fb) + return -EBUSY; + + vsi = &pfc->vsi; + + ret = vdec_vp9_slice_setup_single(instance, bs, fb, pfc); + if (ret) { + mtk_vcodec_err(instance, "Failed to setup VP9 single ret %d\n", ret); + return ret; + } + vdec_vp9_slice_vsi_to_remote(vsi, instance->vsi); + + ret = vpu_dec_start(&instance->vpu, 0, 0); + if (ret) { + mtk_vcodec_err(instance, "Failed to dec VP9 ret %d\n", ret); + return ret; + } + + ret = mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED, + WAIT_INTR_TIMEOUT_MS, MTK_VDEC_CORE); + /* update remote vsi if decode timeout */ + if (ret) { + mtk_vcodec_err(instance, "VP9 decode timeout %d\n", ret); + writel(1, &instance->vsi->state.timeout); + } + + vpu_dec_end(&instance->vpu); + + vdec_vp9_slice_vsi_from_remote(vsi, instance->vsi, 0); + ret = vdec_vp9_slice_update_single(instance, pfc); + if (ret) { + mtk_vcodec_err(instance, "VP9 decode error: %d\n", ret); + return ret; + } + + instance->ctx->decoded_frame_cnt++; + return 0; +} + static int vdec_vp9_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs, struct vdec_fb *fb, bool *res_chg) { @@ -1947,6 +2124,20 @@ static int vdec_vp9_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs, return 0; } +static int vdec_vp9_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs, + struct vdec_fb *fb, bool *res_chg) +{ + struct vdec_vp9_slice_instance *instance = h_vdec; + int ret; + + if (instance->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_PURE_SINGLE_CORE) + ret = vdec_vp9_slice_single_decode(h_vdec, bs, fb, res_chg); + else + ret = vdec_vp9_slice_lat_decode(h_vdec, bs, fb, res_chg); + + return ret; +} + static int vdec_vp9_slice_core_decode(struct vdec_lat_buf *lat_buf) { struct vdec_vp9_slice_instance *instance; @@ -2025,7 +2216,7 @@ static int vdec_vp9_slice_core_decode(struct vdec_lat_buf *lat_buf) const struct vdec_common_if vdec_vp9_slice_lat_if = { .init = vdec_vp9_slice_init, - .decode = vdec_vp9_slice_lat_decode, + .decode = vdec_vp9_slice_decode, .get_param = vdec_vp9_slice_get_param, .deinit = vdec_vp9_slice_deinit, }; diff --git a/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c b/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c index 27b4b35039cf..f3807f03d880 100644 --- a/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c +++ b/drivers/media/platform/mediatek/vcodec/vdec_drv_if.c @@ -47,7 +47,7 @@ int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc) break; case V4L2_PIX_FMT_VP9_FRAME: ctx->dec_if = &vdec_vp9_slice_lat_if; - ctx->hw_id = MTK_VDEC_LAT0; + ctx->hw_id = IS_VDEC_LAT_ARCH(hw_arch) ? MTK_VDEC_LAT0 : MTK_VDEC_CORE; break; default: return -EINVAL; -- 2.18.0

1 0

[PATCH v2] drm/gma500: fix a potential repeat execution in psb_driver_load
by Xiaomeng Tong 13 Apr '22

13 Apr '22

Instead of exiting the loop as expected when an entry is found, the list_for_each_entry() continues until the traversal is complete. To avoid potential executing 'ret = gma_backlight_init(dev);' repeatly, goto outside the loop when the entry is found. Signed-off-by: Xiaomeng Tong <xiam0nd.tong(a)gmail.com> --- changes since v1: - goto outside the loop (Xiaomeng Tong) v1: https://lore.kernel.org/lkml/20220401115811.9656-1-xiam0nd.tong@gmail.com/ --- drivers/gpu/drm/gma500/psb_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 2aff54d505e2..929fd47548b4 100644 --- a/drivers/gpu/drm/gma500/psb_drv.c +++ b/drivers/gpu/drm/gma500/psb_drv.c @@ -400,9 +400,10 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags) case INTEL_OUTPUT_LVDS: case INTEL_OUTPUT_MIPI: ret = gma_backlight_init(dev); - break; + goto out; } } +out: drm_connector_list_iter_end(&conn_iter); if (ret) -- 2.17.1

2 2

[PATCH v2 1/2] drm/panel: lvds: Simplify mode parsing
by Marek Vasut 13 Apr '22

13 Apr '22

The mode parsing is currently implemented in three steps: of_get_display_timing() - DT panel-timing to struct display_timing videomode_from_timing() - struct display_timing to struct videomode drm_display_mode_from_videomode() - struct videomode to struct drm_display_mode Replace all that with simple of_get_drm_panel_display_mode() call, which already populates struct drm_display_mode and then duplicate that mode in panel_lvds_get_modes() each time, since the mode does not change. Nice bonus is the bus_flags parsed by of_get_drm_panel_display_mode() out of panel-timing DT node, which is used in subsequent patch to fix handling of 'de-active' DT property. Tested-by: Christoph Niedermaier <cniedermaier(a)dh-electronics.com> Signed-off-by: Marek Vasut <marex(a)denx.de> Cc: Christoph Niedermaier <cniedermaier(a)dh-electronics.com> Cc: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: Dmitry Osipenko <digetx(a)gmail.com> Cc: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Cc: Robert Foss <robert.foss(a)linaro.org> Cc: Sam Ravnborg <sam(a)ravnborg.org> Cc: Thomas Zimmermann <tzimmermann(a)suse.de> To: dri-devel(a)lists.freedesktop.org --- V2: - Reinstate mandatory width-mm/height-mm DT property check - Collect TB from Christoph --- drivers/gpu/drm/panel/panel-lvds.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c index 27a1c9923b09..6422868c1089 100644 --- a/drivers/gpu/drm/panel/panel-lvds.c +++ b/drivers/gpu/drm/panel/panel-lvds.c @@ -30,7 +30,8 @@ struct panel_lvds { const char *label; unsigned int width; unsigned int height; - struct videomode video_mode; + struct drm_display_mode dmode; + u32 bus_flags; unsigned int bus_format; bool data_mirror; @@ -87,16 +88,15 @@ static int panel_lvds_get_modes(struct drm_panel *panel, struct panel_lvds *lvds = to_panel_lvds(panel); struct drm_display_mode *mode; - mode = drm_mode_create(connector->dev); + mode = drm_mode_duplicate(connector->dev, &lvds->dmode); if (!mode) return 0; - drm_display_mode_from_videomode(&lvds->video_mode, mode); mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; drm_mode_probed_add(connector, mode); - connector->display_info.width_mm = lvds->width; - connector->display_info.height_mm = lvds->height; + connector->display_info.width_mm = lvds->dmode.width_mm; + connector->display_info.height_mm = lvds->dmode.height_mm; drm_display_info_set_bus_formats(&connector->display_info, &lvds->bus_format, 1); connector->display_info.bus_flags = lvds->data_mirror @@ -116,7 +116,6 @@ static const struct drm_panel_funcs panel_lvds_funcs = { static int panel_lvds_parse_dt(struct panel_lvds *lvds) { struct device_node *np = lvds->dev->of_node; - struct display_timing timing; int ret; ret = of_drm_get_panel_orientation(np, &lvds->orientation); @@ -125,23 +124,20 @@ static int panel_lvds_parse_dt(struct panel_lvds *lvds) return ret; } - ret = of_get_display_timing(np, "panel-timing", &timing); + ret = of_get_drm_panel_display_mode(np, &lvds->dmode, &lvds->bus_flags); if (ret < 0) { dev_err(lvds->dev, "%pOF: problems parsing panel-timing (%d)\n", np, ret); return ret; } - videomode_from_timing(&timing, &lvds->video_mode); - - ret = of_property_read_u32(np, "width-mm", &lvds->width); - if (ret < 0) { + if (lvds->dmode.width_mm == 0) { dev_err(lvds->dev, "%pOF: invalid or missing %s DT property\n", np, "width-mm"); return -ENODEV; } - ret = of_property_read_u32(np, "height-mm", &lvds->height); - if (ret < 0) { + + if (lvds->dmode.height_mm == 0) { dev_err(lvds->dev, "%pOF: invalid or missing %s DT property\n", np, "height-mm"); return -ENODEV; -- 2.35.1

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[PATCH] drm: bridge: icn6211: Convert to regmap
by Marek Vasut 13 Apr '22

13 Apr '22

To make debugging easier, convert driver to regmap. Implement read and write regmap tables for known registers, keep all known register readable and mark those which are obviously read-only as not writeable. Use common I2C regmap for the I2C configuration, implement custom regmap bus for DSI configuration. The later is mandatory as this chip requires one extra byte set to read access length between register address and data. Signed-off-by: Marek Vasut <marex(a)denx.de> Cc: Jagan Teki <jagan(a)amarulasolutions.com> Cc: Mark Brown <broonie(a)kernel.org> Cc: Maxime Ripard <maxime(a)cerno.tech> Cc: Robert Foss <robert.foss(a)linaro.org> Cc: Sam Ravnborg <sam(a)ravnborg.org> Cc: Thomas Zimmermann <tzimmermann(a)suse.de> To: dri-devel(a)lists.freedesktop.org --- drivers/gpu/drm/bridge/Kconfig | 1 + drivers/gpu/drm/bridge/chipone-icn6211.c | 96 ++++++++++++++++++++++-- 2 files changed, 89 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index ee7610c2c1a4d..9d22826dc8545 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -32,6 +32,7 @@ config DRM_CHIPONE_ICN6211 select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL_BRIDGE + select REGMAP_I2C help ICN6211 is MIPI-DSI/RGB Converter bridge from chipone. diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c index f4b152901d0e8..981ff93155824 100644 --- a/drivers/gpu/drm/bridge/chipone-icn6211.c +++ b/drivers/gpu/drm/bridge/chipone-icn6211.c @@ -14,6 +14,7 @@ #include <linux/i2c.h> #include <linux/module.h> #include <linux/of_device.h> +#include <linux/regmap.h> #include <linux/regulator/consumer.h> #define VENDOR_ID 0x00 @@ -134,6 +135,7 @@ struct chipone { struct device *dev; + struct regmap *regmap; struct i2c_client *client; struct drm_bridge bridge; struct drm_display_mode mode; @@ -146,6 +148,77 @@ struct chipone { bool interface_i2c; }; +static const struct regmap_range chipone_dsi_readable_ranges[] = { + regmap_reg_range(VENDOR_ID, VERSION_ID), + regmap_reg_range(FIRMWARE_VERSION, PLL_SSC_OFFSET(3)), + regmap_reg_range(GPIO_OEN, MIPI_ULPS_CTRL), + regmap_reg_range(MIPI_CLK_CHK_VAR, MIPI_T_TA_SURE_PRE), + regmap_reg_range(MIPI_T_LPX_SET, MIPI_INIT_TIME_H), + regmap_reg_range(MIPI_T_CLK_TERM_EN, MIPI_T_CLK_SETTLE), + regmap_reg_range(MIPI_TO_HS_RX_L, MIPI_PHY_(5)), + regmap_reg_range(MIPI_PD_RX, MIPI_RST_NUM), + regmap_reg_range(MIPI_DBG_SET_(0), MIPI_DBG_SET_(9)), + regmap_reg_range(MIPI_DBG_SEL, MIPI_ATE_STATUS_(1)), +}; + +static const struct regmap_access_table chipone_dsi_readable_table = { + .yes_ranges = chipone_dsi_readable_ranges, + .n_yes_ranges = ARRAY_SIZE(chipone_dsi_readable_ranges), +}; + +static const struct regmap_range chipone_dsi_writeable_ranges[] = { + regmap_reg_range(CONFIG_FINISH, PLL_SSC_OFFSET(3)), + regmap_reg_range(GPIO_OEN, MIPI_ULPS_CTRL), + regmap_reg_range(MIPI_CLK_CHK_VAR, MIPI_T_TA_SURE_PRE), + regmap_reg_range(MIPI_T_LPX_SET, MIPI_INIT_TIME_H), + regmap_reg_range(MIPI_T_CLK_TERM_EN, MIPI_T_CLK_SETTLE), + regmap_reg_range(MIPI_TO_HS_RX_L, MIPI_PHY_(5)), + regmap_reg_range(MIPI_PD_RX, MIPI_RST_NUM), + regmap_reg_range(MIPI_DBG_SET_(0), MIPI_DBG_SET_(9)), + regmap_reg_range(MIPI_DBG_SEL, MIPI_ATE_STATUS_(1)), +}; + +static const struct regmap_access_table chipone_dsi_writeable_table = { + .yes_ranges = chipone_dsi_writeable_ranges, + .n_yes_ranges = ARRAY_SIZE(chipone_dsi_writeable_ranges), +}; + +static const struct regmap_config chipone_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .rd_table = &chipone_dsi_readable_table, + .wr_table = &chipone_dsi_writeable_table, + .cache_type = REGCACHE_RBTREE, + .max_register = MIPI_ATE_STATUS_(1), +}; + +static int chipone_dsi_read(void *context, + const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + struct mipi_dsi_device *dsi = context; + const u16 reg16 = (val_size << 8) | *(u8 *)reg; + int ret; + + ret = mipi_dsi_generic_read(dsi, &reg16, 2, val, val_size); + + return ret == val_size ? 0 : -EINVAL; +} + +static int chipone_dsi_write(void *context, const void *data, size_t count) +{ + struct mipi_dsi_device *dsi = context; + + return mipi_dsi_generic_write(dsi, data, 2); +} + +static const struct regmap_bus chipone_dsi_regmap_bus = { + .read = chipone_dsi_read, + .write = chipone_dsi_write, + .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, + .val_format_endian_default = REGMAP_ENDIAN_NATIVE, +}; + static inline struct chipone *bridge_to_chipone(struct drm_bridge *bridge) { return container_of(bridge, struct chipone, bridge); @@ -153,18 +226,16 @@ static inline struct chipone *bridge_to_chipone(struct drm_bridge *bridge) static void chipone_readb(struct chipone *icn, u8 reg, u8 *val) { - if (icn->interface_i2c) - *val = i2c_smbus_read_byte_data(icn->client, reg); - else - mipi_dsi_generic_read(icn->dsi, (u8[]){reg, 1}, 2, val, 1); + int ret, pval; + + ret = regmap_read(icn->regmap, reg, &pval); + + *val = ret ? 0 : pval & 0xff; } static int chipone_writeb(struct chipone *icn, u8 reg, u8 val) { - if (icn->interface_i2c) - return i2c_smbus_write_byte_data(icn->client, reg, val); - else - return mipi_dsi_generic_write(icn->dsi, (u8[]){reg, val}, 2); + return regmap_write(icn->regmap, reg, val); } static void chipone_configure_pll(struct chipone *icn, @@ -591,6 +662,11 @@ static int chipone_dsi_probe(struct mipi_dsi_device *dsi) if (ret) return ret; + icn->regmap = devm_regmap_init(dev, &chipone_dsi_regmap_bus, + dsi, &chipone_regmap_config); + if (IS_ERR(icn->regmap)) + return PTR_ERR(icn->regmap); + icn->interface_i2c = false; icn->dsi = dsi; @@ -616,6 +692,10 @@ static int chipone_i2c_probe(struct i2c_client *client, if (ret) return ret; + icn->regmap = devm_regmap_init_i2c(client, &chipone_regmap_config); + if (IS_ERR(icn->regmap)) + return PTR_ERR(icn->regmap); + icn->interface_i2c = true; icn->client = client; dev_set_drvdata(dev, icn); -- 2.35.1

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[PATCH v4, 0/7] support mt8195 decoder
by Yunfei Dong 13 Apr '22

13 Apr '22

Firstly, add mt8195 soc lat hardware and compatible, then add documents. For vp8 only support MM21 mode, H264/vp9 support MT21C, need to separate them. Lastly, enable H264 inner racing mode to reduce hardware latency. Patch 1~4 add mt8195 soc lat hardware and compatible, then add documents. Patch 5 using different format for different codecs. Patch 6 prevent kernel crash when scp reboot. Patch 7 enable H264 inner racing mode to reduce hardware latency. --- This patch depends on "add h264 decoder driver for mt8186"[1] [1] https://patchwork.kernel.org/project/linux-mediatek/cover/20220413023720.29… --- changed with v3: - rebase driver to the latest media_stage. changed with v2: - add detail explanation for lat soc hardware for patch 1. changed with v1: - separate "Init VP9 stateless decode params" patch and remove it to another one. - add reviewed-by in patch v3/v4/v6 --- Yunfei Dong (7): dt-bindings: media: mediatek: vcodec: Adds decoder dt-bindings for lat soc media: mediatek: vcodec: Add to support lat soc hardware dt-bindings: media: mediatek: vcodec: Adds decoder dt-bindings for mt8195 media: mediatek: vcodec: Adds compatible for mt8195 media: mediatek: vcodec: Different codec using different capture format media: mediatek: vcodec: prevent kernel crash when scp ipi timeout media: mediatek: vcodec: Add to support H264 inner racing mode .../media/mediatek,vcodec-subdev-decoder.yaml | 52 +++++++++++++------ .../platform/mediatek/vcodec/mtk_vcodec_dec.c | 41 +++++++++++++++ .../mediatek/vcodec/mtk_vcodec_dec_drv.c | 8 +++ .../mediatek/vcodec/mtk_vcodec_dec_hw.c | 12 +++-- .../mediatek/vcodec/mtk_vcodec_dec_hw.h | 2 + .../mediatek/vcodec/mtk_vcodec_dec_pm.c | 50 ++++++++++++++++++ .../platform/mediatek/vcodec/mtk_vcodec_drv.h | 11 ++++ .../vcodec/vdec/vdec_h264_req_multi_if.c | 25 +++++++-- .../platform/mediatek/vcodec/vdec_vpu_if.c | 5 ++ 9 files changed, 182 insertions(+), 24 deletions(-) -- 2.18.0

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dri-devel April 2022