From patchwork Fri Aug 25 12:54:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13365614 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4DD4FC3DA6F for ; Fri, 25 Aug 2023 12:55:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A8F3A10E143; Fri, 25 Aug 2023 12:55:48 +0000 (UTC) Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by gabe.freedesktop.org (Postfix) with ESMTPS id 943F910E13F for ; Fri, 25 Aug 2023 12:55:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1692968146; x=1724504146; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ngFvx05X3CJtoqLsU1JQEa16XqG3V7n5Wd1Sl+NcV1s=; b=rjcpnJQRUh7UcHoC/T1XpjIpEc243cjVixfMteUwXrUeXHFtTmkvbIbs uDQDfdSSoYhv27OuHFnR/nymRFsYJBO9F9yN+agFPaoXbeRglJFeT+xKd e3StaFvkuF6EnW1vAO15P/LBihaFvmHQVmhZVnd/gGortmBkgq1KanP1K oZ+8790Zs80ISqCiEq3UBSAnQIPfJe4b9w1NUUUvtS1zdLYRbYnSowOYf XUU2MuNRgFOsnhvUr+u5mG9cAMf0At/DUK2TNFiF9c7wpHuKxdR8d+aFo nvrxe1d5fDSYxI6BswaPw6R3zZyIPuO6N+lN5kNoetnrRftNtAfTJAbLo A==; X-IronPort-AV: E=Sophos;i="6.02,195,1688454000"; d="scan'208";a="1278097" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 25 Aug 2023 05:55:46 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Fri, 25 Aug 2023 05:55:29 -0700 Received: from che-lt-i67131.amer.actel.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Fri, 25 Aug 2023 05:55:22 -0700 From: Manikandan Muralidharan To: , , , , , , , , , Subject: [PATCH v4 5/8] drm: atmel_hlcdc: Add support for XLCDC in atmel LCD driver Date: Fri, 25 Aug 2023 18:24:41 +0530 Message-ID: <20230825125444.93222-6-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230825125444.93222-1-manikandan.m@microchip.com> References: <20230825125444.93222-1-manikandan.m@microchip.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Balakrishnan.S@microchip.com, Nayabbasha.Sayed@microchip.com, Balamanikandan.Gunasundar@microchip.com, Manikandan Muralidharan , Varshini.Rajendran@microchip.com, Dharma.B@microchip.com, Durai Manickam KR , Hari.PrasathGE@microchip.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" - XLCDC in SAM9X7 has different sets of registers and additional configuration bits when compared to previous HLCDC IP. Read/write operation on the controller registers is now separated using the XLCDC status flag. - HEO scaling, window resampling, Alpha blending, YUV-to-RGB conversion in XLCDC is derived and handled using additional configuration bits and registers. - Writing one to the Enable fields of each layer in LCD_ATTRE is required to reflect the values set in Configuration, FBA, Enable registers of each layer Signed-off-by: Manikandan Muralidharan Co-developed-by: Hari Prasath Gujulan Elango Signed-off-by: Hari Prasath Gujulan Elango Co-developed-by: Durai Manickam KR Signed-off-by: Durai Manickam KR --- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 25 +- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 333 +++++++++++++++--- 2 files changed, 299 insertions(+), 59 deletions(-) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index cc5cf4c2faf7..4b11a1de8af4 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -79,6 +79,7 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) unsigned int mask = ATMEL_HLCDC_CLKDIV_MASK | ATMEL_HLCDC_CLKPOL; unsigned int cfg = 0; int div, ret; + bool is_xlcdc = crtc->dc->desc->is_xlcdc; /* get encoder from crtc */ drm_for_each_encoder(en_iter, ddev) { @@ -164,10 +165,10 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) state = drm_crtc_state_to_atmel_hlcdc_crtc_state(c->state); cfg = state->output_mode << 8; - if (adj->flags & DRM_MODE_FLAG_NVSYNC) + if (!is_xlcdc && (adj->flags & DRM_MODE_FLAG_NVSYNC)) cfg |= ATMEL_HLCDC_VSPOL; - if (adj->flags & DRM_MODE_FLAG_NHSYNC) + if (!is_xlcdc && (adj->flags & DRM_MODE_FLAG_NHSYNC)) cfg |= ATMEL_HLCDC_HSPOL; regmap_update_bits(regmap, ATMEL_HLCDC_CFG(5), @@ -202,6 +203,16 @@ static void atmel_hlcdc_crtc_atomic_disable(struct drm_crtc *c, pm_runtime_get_sync(dev->dev); + if (crtc->dc->desc->is_xlcdc) { + regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_XLCDC_CM); + regmap_read_poll_timeout(regmap, ATMEL_HLCDC_SR, status, + !(status & ATMEL_XLCDC_CM), 10, 0); + + regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_XLCDC_SD); + regmap_read_poll_timeout(regmap, ATMEL_HLCDC_SR, status, + status & ATMEL_XLCDC_SD, 10, 0); + } + regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_DISP); while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) && (status & ATMEL_HLCDC_DISP)) @@ -256,6 +267,16 @@ static void atmel_hlcdc_crtc_atomic_enable(struct drm_crtc *c, !(status & ATMEL_HLCDC_DISP)) cpu_relax(); + if (crtc->dc->desc->is_xlcdc) { + regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_XLCDC_CM); + regmap_read_poll_timeout(regmap, ATMEL_HLCDC_SR, status, + status & ATMEL_XLCDC_CM, 10, 0); + + regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_XLCDC_SD); + regmap_read_poll_timeout(regmap, ATMEL_HLCDC_SR, status, + !(status & ATMEL_XLCDC_SD), 10, 0); + } + pm_runtime_put_sync(dev->dev); } diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c index daa508504f47..26caf4cddfa4 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c @@ -330,11 +330,59 @@ static void atmel_hlcdc_plane_setup_scaler(struct atmel_hlcdc_plane *plane, yfactor)); } +static void atmel_xlcdc_plane_setup_scaler(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_state *state) +{ + const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; + u32 xfactor, yfactor; + + if (!desc->layout.scaler_config) + return; + + if (state->crtc_w == state->src_w && state->crtc_h == state->src_h) { + atmel_hlcdc_layer_write_cfg(&plane->layer, + desc->layout.scaler_config, 0); + return; + } + + /* xfactor = round[(2^20 * XMEMSIZE)/XSIZE)] */ + xfactor = (u32)(((1 << 20) * state->src_w) / state->crtc_w); + + /* yfactor = round[(2^20 * YMEMSIZE)/YSIZE)] */ + yfactor = (u32)(((1 << 20) * state->src_h) / state->crtc_h); + + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config, + ATMEL_XLCDC_LAYER_VSCALER_LUMA_ENABLE | + ATMEL_XLCDC_LAYER_VSCALER_CHROMA_ENABLE | + ATMEL_XLCDC_LAYER_HSCALER_LUMA_ENABLE | + ATMEL_XLCDC_LAYER_HSCALER_CHROMA_ENABLE); + + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config + 1, + yfactor); + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config + 3, + xfactor); + + /* As per YCbCr window resampling configuration */ + if (state->base.fb->format->format == DRM_FORMAT_YUV420) { + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config + 2, + yfactor / 2); + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config + 4, + xfactor / 2); + } else { + /* As per ARGB window resampling configuration */ + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config + 2, + yfactor); + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.scaler_config + 4, + xfactor); + } +} + static void atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane, struct atmel_hlcdc_plane_state *state) { const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; + struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private; if (desc->layout.size) atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.size, @@ -352,7 +400,10 @@ atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane, ATMEL_HLCDC_LAYER_POS(state->crtc_x, state->crtc_y)); - atmel_hlcdc_plane_setup_scaler(plane, state); + if (dc->desc->is_xlcdc) + atmel_xlcdc_plane_setup_scaler(plane, state); + else + atmel_hlcdc_plane_setup_scaler(plane, state); } static void @@ -393,6 +444,40 @@ atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane, cfg); } +static void +atmel_xlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_state *state) +{ + unsigned int cfg; + const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; + const struct drm_format_info *format = state->base.fb->format; + + atmel_hlcdc_layer_write_cfg(&plane->layer, ATMEL_XLCDC_LAYER_DMA_CFG, + ATMEL_HLCDC_LAYER_DMA_BLEN_INCR16 | state->ahb_id); + + cfg = ATMEL_XLCDC_LAYER_DMA | ATMEL_XLCDC_LAYER_REP; + + if (plane->base.type != DRM_PLANE_TYPE_PRIMARY) { + /* + * Alpha Blending bits specific to SAM9X7 SoC + */ + cfg |= ATMEL_XLCDC_LAYER_SFACTC_A0_MULT_AS | + ATMEL_XLCDC_LAYER_SFACTA_ONE | + ATMEL_XLCDC_LAYER_DFACTC_M_A0_MULT_AS | + ATMEL_XLCDC_LAYER_DFACTA_ONE; + if (format->has_alpha) + cfg |= ATMEL_XLCDC_LAYER_A0(0xff); + else + cfg |= ATMEL_XLCDC_LAYER_A0(state->base.alpha); + } + + if (state->disc_h && state->disc_w) + cfg |= ATMEL_XLCDC_LAYER_DISCEN; + + atmel_hlcdc_layer_write_cfg(&plane->layer, desc->layout.general_config, + cfg); +} + static void atmel_hlcdc_plane_update_format(struct atmel_hlcdc_plane *plane, struct atmel_hlcdc_plane_state *state) { @@ -437,36 +522,55 @@ static void atmel_hlcdc_plane_update_clut(struct atmel_hlcdc_plane *plane, } } +static void update_hlcdc_buffers(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_state *state, u32 sr, int i) +{ + atmel_hlcdc_layer_write_reg(&plane->layer, + ATMEL_HLCDC_LAYER_PLANE_HEAD(i), + state->dscrs[i]->self); + + if (!(sr & ATMEL_HLCDC_LAYER_EN)) { + atmel_hlcdc_layer_write_reg(&plane->layer, + ATMEL_HLCDC_LAYER_PLANE_ADDR(i), + state->dscrs[i]->addr); + atmel_hlcdc_layer_write_reg(&plane->layer, + ATMEL_HLCDC_LAYER_PLANE_CTRL(i), + state->dscrs[i]->ctrl); + atmel_hlcdc_layer_write_reg(&plane->layer, + ATMEL_HLCDC_LAYER_PLANE_NEXT(i), + state->dscrs[i]->self); + } +} + +static void update_xlcdc_buffers(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_state *state, int i) +{ + atmel_hlcdc_layer_write_reg(&plane->layer, + ATMEL_XLCDC_LAYER_PLANE_ADDR(i), + state->dscrs[i]->addr); +} + static void atmel_hlcdc_plane_update_buffers(struct atmel_hlcdc_plane *plane, - struct atmel_hlcdc_plane_state *state) + struct atmel_hlcdc_plane_state *state) { const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; + struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private; struct drm_framebuffer *fb = state->base.fb; u32 sr; int i; - sr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHSR); + if (!dc->desc->is_xlcdc) + sr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHSR); for (i = 0; i < state->nplanes; i++) { struct drm_gem_dma_object *gem = drm_fb_dma_get_gem_obj(fb, i); state->dscrs[i]->addr = gem->dma_addr + state->offsets[i]; - atmel_hlcdc_layer_write_reg(&plane->layer, - ATMEL_HLCDC_LAYER_PLANE_HEAD(i), - state->dscrs[i]->self); - - if (!(sr & ATMEL_HLCDC_LAYER_EN)) { - atmel_hlcdc_layer_write_reg(&plane->layer, - ATMEL_HLCDC_LAYER_PLANE_ADDR(i), - state->dscrs[i]->addr); - atmel_hlcdc_layer_write_reg(&plane->layer, - ATMEL_HLCDC_LAYER_PLANE_CTRL(i), - state->dscrs[i]->ctrl); - atmel_hlcdc_layer_write_reg(&plane->layer, - ATMEL_HLCDC_LAYER_PLANE_NEXT(i), - state->dscrs[i]->self); - } + if (dc->desc->is_xlcdc) + update_xlcdc_buffers(plane, state, i); + else + update_hlcdc_buffers(plane, state, sr, i); if (desc->layout.xstride[i]) atmel_hlcdc_layer_write_cfg(&plane->layer, @@ -712,11 +816,8 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p, return 0; } -static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p, - struct drm_atomic_state *state) +static void hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane) { - struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); - /* Disable interrupts */ atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IDR, 0xffffffff); @@ -731,6 +832,72 @@ static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p, atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR); } +static void xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane) +{ + /* Disable interrupts */ + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_XLCDC_LAYER_IDR, + 0xffffffff); + + /* Disable the layer */ + atmel_hlcdc_layer_write_reg(&plane->layer, + ATMEL_XLCDC_LAYER_ENR, 0); + + /* Clear all pending interrupts */ + atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_XLCDC_LAYER_ISR); +} + +static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p, + struct drm_atomic_state *state) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private; + + if (dc->desc->is_xlcdc) + xlcdc_atomic_disable(plane); + else + hlcdc_atomic_disable(plane); +} + +static void hlcdc_atomic_update(struct atmel_hlcdc_plane *plane) +{ + u32 sr; + + /* Enable the overrun interrupts. */ + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IER, + ATMEL_HLCDC_LAYER_OVR_IRQ(0) | + ATMEL_HLCDC_LAYER_OVR_IRQ(1) | + ATMEL_HLCDC_LAYER_OVR_IRQ(2)); + + /* Apply the new config at the next SOF event. */ + sr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHSR); + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHER, + ATMEL_HLCDC_LAYER_UPDATE | + (sr & ATMEL_HLCDC_LAYER_EN ? + ATMEL_HLCDC_LAYER_A2Q : ATMEL_HLCDC_LAYER_EN)); +} + +static void xlcdc_atomic_update(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_dc *dc) +{ + /* Enable the overrun interrupts. */ + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_XLCDC_LAYER_IER, + ATMEL_XLCDC_LAYER_OVR_IRQ(0) | + ATMEL_XLCDC_LAYER_OVR_IRQ(1) | + ATMEL_XLCDC_LAYER_OVR_IRQ(2)); + + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_XLCDC_LAYER_ENR, + ATMEL_XLCDC_LAYER_EN); + + /* + * Updating XLCDC_xxxCFGx, XLCDC_xxxFBA and XLCDC_xxxEN, + * (where xxx indicates each layer) requires writing one to the + * Update Attribute field for each layer in LCDC_ATTRE register for SAM9X7. + */ + regmap_write(dc->hlcdc->regmap, ATMEL_XLCDC_ATTRE, ATMEL_XLCDC_BASE_UPDATE | + ATMEL_XLCDC_OVR1_UPDATE | ATMEL_XLCDC_OVR3_UPDATE | + ATMEL_XLCDC_HEO_UPDATE); +} + static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p, struct drm_atomic_state *state) { @@ -739,7 +906,7 @@ static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p, struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); struct atmel_hlcdc_plane_state *hstate = drm_plane_state_to_atmel_hlcdc_plane_state(new_s); - u32 sr; + struct atmel_hlcdc_dc *dc = p->dev->dev_private; if (!new_s->crtc || !new_s->fb) return; @@ -750,29 +917,67 @@ static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p, } atmel_hlcdc_plane_update_pos_and_size(plane, hstate); - atmel_hlcdc_plane_update_general_settings(plane, hstate); + if (dc->desc->is_xlcdc) + atmel_xlcdc_plane_update_general_settings(plane, hstate); + else + atmel_hlcdc_plane_update_general_settings(plane, hstate); atmel_hlcdc_plane_update_format(plane, hstate); atmel_hlcdc_plane_update_clut(plane, hstate); atmel_hlcdc_plane_update_buffers(plane, hstate); atmel_hlcdc_plane_update_disc_area(plane, hstate); - /* Enable the overrun interrupts. */ - atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IER, - ATMEL_HLCDC_LAYER_OVR_IRQ(0) | - ATMEL_HLCDC_LAYER_OVR_IRQ(1) | - ATMEL_HLCDC_LAYER_OVR_IRQ(2)); + if (dc->desc->is_xlcdc) + xlcdc_atomic_update(plane, dc); + else + hlcdc_atomic_update(plane); +} - /* Apply the new config at the next SOF event. */ - sr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHSR); - atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHER, - ATMEL_HLCDC_LAYER_UPDATE | - (sr & ATMEL_HLCDC_LAYER_EN ? - ATMEL_HLCDC_LAYER_A2Q : ATMEL_HLCDC_LAYER_EN)); +u32 hlcdc_csc_coeffs[] = { + 0x4c900091, + 0x7a5f5090, + 0x40040890 +}; + +u32 xlcdc_csc_coeffs[] = { + 0x00000488, + 0x00000648, + 0x1EA00480, + 0x00001D28, + 0x08100480, + 0x00000000, + 0x00000007 +}; + +static void hlcdc_csc_init(struct atmel_hlcdc_plane *plane, + const struct atmel_hlcdc_layer_desc *desc) +{ + /* + * TODO: declare a "yuv-to-rgb-conv-factors" property to let + * userspace modify these factors (using a BLOB property ?). + */ + for (int i = 0; i < ARRAY_SIZE(hlcdc_csc_coeffs); i++) + atmel_hlcdc_layer_write_cfg(&plane->layer, + desc->layout.csc + i, + hlcdc_csc_coeffs[i]); +} + +static void xlcdc_csc_init(struct atmel_hlcdc_plane *plane, + const struct atmel_hlcdc_layer_desc *desc) +{ + /* + * yuv-to-rgb-conv-factors are now defined from LCDC_HEOCFG16 to + * LCDC_HEOCFG21 registers in SAM9X7. + */ + for (int i = 0; i < ARRAY_SIZE(xlcdc_csc_coeffs); i++) + atmel_hlcdc_layer_write_cfg(&plane->layer, + desc->layout.csc + i, + xlcdc_csc_coeffs[i]); } static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane) { const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; + struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private; if (desc->type == ATMEL_HLCDC_OVERLAY_LAYER || desc->type == ATMEL_HLCDC_CURSOR_LAYER) { @@ -796,31 +1001,19 @@ static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane) return ret; } - if (desc->layout.csc) { - /* - * TODO: decare a "yuv-to-rgb-conv-factors" property to let - * userspace modify these factors (using a BLOB property ?). - */ - atmel_hlcdc_layer_write_cfg(&plane->layer, - desc->layout.csc, - 0x4c900091); - atmel_hlcdc_layer_write_cfg(&plane->layer, - desc->layout.csc + 1, - 0x7a5f5090); - atmel_hlcdc_layer_write_cfg(&plane->layer, - desc->layout.csc + 2, - 0x40040890); - } + if (dc->desc->is_xlcdc && desc->layout.csc) + xlcdc_csc_init(plane, desc); + else + if (desc->layout.csc) + hlcdc_csc_init(plane, desc); return 0; } -void atmel_hlcdc_plane_irq(struct atmel_hlcdc_plane *plane) +static void hlcdc_irq_dbg(struct atmel_hlcdc_plane *plane, + const struct atmel_hlcdc_layer_desc *desc) { - const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; - u32 isr; - - isr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR); + u32 isr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR); /* * There's not much we can do in case of overrun except informing @@ -830,8 +1023,34 @@ void atmel_hlcdc_plane_irq(struct atmel_hlcdc_plane *plane) if (isr & (ATMEL_HLCDC_LAYER_OVR_IRQ(0) | ATMEL_HLCDC_LAYER_OVR_IRQ(1) | ATMEL_HLCDC_LAYER_OVR_IRQ(2))) - dev_dbg(plane->base.dev->dev, "overrun on plane %s\n", - desc->name); + pr_warn("%s: overrun on plane %s\n", __func__, desc->name); +} + +static void xlcdc_irq_dbg(struct atmel_hlcdc_plane *plane, + const struct atmel_hlcdc_layer_desc *desc) +{ + u32 isr = atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_XLCDC_LAYER_ISR); + + /* + * There's not much we can do in case of overrun except informing + * the user. However, we are in interrupt context here, hence the + * use of dev_dbg(). + */ + if (isr & + (ATMEL_XLCDC_LAYER_OVR_IRQ(0) | ATMEL_XLCDC_LAYER_OVR_IRQ(1) | + ATMEL_XLCDC_LAYER_OVR_IRQ(2))) + pr_warn("%s: overrun on plane %s\n", __func__, desc->name); +} + +void atmel_hlcdc_plane_irq(struct atmel_hlcdc_plane *plane) +{ + const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc; + struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private; + + if (dc->desc->is_xlcdc) + xlcdc_irq_dbg(plane, desc); + else + hlcdc_irq_dbg(plane, desc); } static const struct drm_plane_helper_funcs atmel_hlcdc_layer_plane_helper_funcs = {