From nobody Sat Feb 7 10:14:42 2026 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F3183148AF; Fri, 23 Jan 2026 16:13:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769184793; cv=none; b=ApgqZGPKaaTcYKrAZG5QLMCH1FN0eT0LJAWi4uQopW+NllRruG+bata2Jp4PhXM3jEBZ74RG8EAqQddqEaUvcqKrNlx4emwJcvUN+JnJpOgnRM3kOiunj16kftT8+Lme3cZlasbHZTz6WwBTAN/zNUvAMNFY69DzR5H/cUP5yRo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769184793; c=relaxed/simple; bh=sJOxIZIzqKYhqehIbd0EKHIP7+4kl84s7aOQHkLIzQM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=QDd5lA77lLle5hias+QCUxWEE6RSkMuOkVxtoMMTL0mBJj8M5Nse8PYmURsMDr3OvrDQ6v4MWUmQa2GiRZ8s0itjmF3UkrKqmuEacYKUIPAr/NtN6O31yjdcNxRQ/+rCCg82kZ0l0fMxQl3daQmu81pUcf3MiDOvY7YXqvqGSNg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=x+1gMrKS; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="x+1gMrKS" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 86E23C1F1CA; Fri, 23 Jan 2026 16:13:03 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 380C36070A; Fri, 23 Jan 2026 16:13:03 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 2A375119A87D8; Fri, 23 Jan 2026 17:12:59 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1769184781; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=O24tFBrT15VptdJnWdlRlNZ2J39m4pHYDYjGkzjXizs=; b=x+1gMrKSkreHFfPyidHIkAUPVdrrBvJX8qeNq9Ansjy/3ie4sF2Kqtbi8k7nofWU6VEOct Dt6tmDkTT/kDBb37kmBTM1TzkDVehxUkWnHH4TLp0O3LZ4yV6P9+oZO+qDUG/0zVSMdNXr w7BCk8ot+K/Kp9+Wyev+YPZ97urj2SZMpZUPXurHh6Eo30w7dXkCNrsPdRFt3Y+6L7SS+T 7x6OwWZRsaYKO72n+8l9g+kSF2a/Hs14oEszSlhH4woeF4nBKzLb9E8t8QqcAdVIllVqEf daGzZulUzDVtJ9O9dbea4WPnrAdpzeXHOetJR9L0Ox1BWyW9zKzkHtmHOu7ziQ== From: "Kory Maincent (TI.com)" Date: Fri, 23 Jan 2026 17:12:26 +0100 Subject: [PATCH v5 08/25] drm/tilcdc: Remove tilcdc_panel_info structure Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260123-feature_tilcdc-v5-8-5a44d2aa3f6f@bootlin.com> References: <20260123-feature_tilcdc-v5-0-5a44d2aa3f6f@bootlin.com> In-Reply-To: <20260123-feature_tilcdc-v5-0-5a44d2aa3f6f@bootlin.com> To: Jyri Sarha , Tomi Valkeinen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Russell King , Bartosz Golaszewski , Tony Lindgren , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: Markus Schneider-Pargmann , Bajjuri Praneeth , Luca Ceresoli , Louis Chauvet , Thomas Petazzoni , Miguel Gazquez , Herve Codina , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, "Kory Maincent (TI.com)" X-Mailer: b4 0.15-dev-47773 X-Last-TLS-Session-Version: TLSv1.3 Remove the tilcdc_panel_info structure and its associated helper function as the structure contains only redundant or unused parameters. Most panel configuration parameters in tilcdc_panel_info are either: - Already represented by existing DRM mode flags (invert_pxl_clk, sync_edge via DRM_BUS_FLAG_*), or - Set to identical values across all instances (panel_info_default), making them effectively constants The removed fifo_th field is already handled by priv->fifo_th when set. Other removed fields (tft_alt_mode, raster_order) were always set to 0 in the only instance (panel_info_default) and thus had no effect. This simplifies the code by eliminating unnecessary abstraction while preserving all functional behavior. Reviewed-by: Luca Ceresoli Signed-off-by: Kory Maincent (TI.com) --- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 28 +++------------------ drivers/gpu/drm/tilcdc/tilcdc_drv.h | 42 ----------------------------= ---- drivers/gpu/drm/tilcdc/tilcdc_external.c | 14 ----------- 3 files changed, 3 insertions(+), 81 deletions(-) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/= tilcdc_crtc.c index 252e5adaeb6e2..5b8aba0765f9b 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -31,7 +31,6 @@ struct tilcdc_crtc { struct drm_crtc base; =20 struct drm_plane primary; - const struct tilcdc_panel_info *info; struct drm_pending_vblank_event *event; struct mutex enable_lock; bool enabled; @@ -272,14 +271,10 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crt= c) struct tilcdc_crtc *tilcdc_crtc =3D to_tilcdc_crtc(crtc); struct drm_device *dev =3D crtc->dev; struct tilcdc_drm_private *priv =3D dev->dev_private; - const struct tilcdc_panel_info *info =3D tilcdc_crtc->info; uint32_t reg, hbp, hfp, hsw, vbp, vfp, vsw; struct drm_display_mode *mode =3D &crtc->state->adjusted_mode; struct drm_framebuffer *fb =3D crtc->primary->state->fb; =20 - if (WARN_ON(!info)) - return; - if (WARN_ON(!fb)) return; =20 @@ -287,12 +282,11 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crt= c) reg =3D tilcdc_read(dev, LCDC_DMA_CTRL_REG) & ~0x00000770; /* Use 16 bit DMA burst size by default */ reg |=3D LCDC_DMA_BURST_SIZE(LCDC_DMA_BURST_16); + if (priv->fifo_th) { int fifo_th_val =3D ilog2(priv->fifo_th) - 3; =20 reg |=3D (fifo_th_val << 8); - } else { - reg |=3D (info->fifo_th << 8); } tilcdc_write(dev, LCDC_DMA_CTRL_REG, reg); =20 @@ -360,8 +354,6 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc) LCDC_V2_TFT_24BPP_MODE | LCDC_V2_TFT_24BPP_UNPACK | 0x000ff000 /* Palette Loading Delay bits */); reg |=3D LCDC_TFT_MODE; /* no monochrome/passive support */ - if (info->tft_alt_mode) - reg |=3D LCDC_TFT_ALT_ENABLE; if (priv->rev =3D=3D 2) { switch (fb->format->format) { case DRM_FORMAT_BGR565: @@ -384,15 +376,13 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crt= c) reg |=3D 128 << 12; tilcdc_write(dev, LCDC_RASTER_CTRL_REG, reg); =20 - if (info->invert_pxl_clk || - mode->flags =3D=3D DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE) + if (mode->flags =3D=3D DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE) tilcdc_set(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_PIXEL_CLOCK); else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_PIXEL_CLOCK); =20 tilcdc_set(dev, LCDC_RASTER_TIMING_2_REG, LCDC_SYNC_CTRL); - if (info->sync_edge || - mode->flags =3D=3D DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE) + if (mode->flags =3D=3D DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE) tilcdc_set(dev, LCDC_RASTER_TIMING_2_REG, LCDC_SYNC_EDGE); else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_SYNC_EDGE); @@ -407,11 +397,6 @@ static void tilcdc_crtc_set_mode(struct drm_crtc *crtc) else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_VSYNC); =20 - if (info->raster_order) - tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ORDER); - else - tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ORDER); - tilcdc_crtc_set_clk(crtc); =20 tilcdc_crtc_load_palette(crtc); @@ -838,13 +823,6 @@ static const struct drm_crtc_helper_funcs tilcdc_crtc_= helper_funcs =3D { .atomic_flush =3D tilcdc_crtc_atomic_flush, }; =20 -void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc, - const struct tilcdc_panel_info *info) -{ - struct tilcdc_crtc *tilcdc_crtc =3D to_tilcdc_crtc(crtc); - tilcdc_crtc->info =3D info; -} - void tilcdc_crtc_update_clk(struct drm_crtc *crtc) { struct drm_device *dev =3D crtc->dev; diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h b/drivers/gpu/drm/tilcdc/t= ilcdc_drv.h index c23b593dc61f6..181b9d7a515b6 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h @@ -114,53 +114,11 @@ void tilcdc_module_init(struct tilcdc_module *mod, co= nst char *name, const struct tilcdc_module_ops *funcs); void tilcdc_module_cleanup(struct tilcdc_module *mod); =20 -/* Panel config that needs to be set in the crtc, but is not coming from - * the mode timings. The display module is expected to call - * tilcdc_crtc_set_panel_info() to set this during modeset. - */ -struct tilcdc_panel_info { - - /* AC Bias Pin Frequency */ - uint32_t ac_bias; - - /* AC Bias Pin Transitions per Interrupt */ - uint32_t ac_bias_intrpt; - - /* DMA burst size */ - uint32_t dma_burst_sz; - - /* Bits per pixel */ - uint32_t bpp; - - /* FIFO DMA Request Delay */ - uint32_t fdd; - - /* TFT Alternative Signal Mapping (Only for active) */ - bool tft_alt_mode; - - /* Invert pixel clock */ - bool invert_pxl_clk; - - /* Horizontal and Vertical Sync Edge: 0=3Drising 1=3Dfalling */ - uint32_t sync_edge; - - /* Horizontal and Vertical Sync: Control: 0=3Dignore */ - uint32_t sync_ctrl; - - /* Raster Data Order Select: 1=3DMost-to-least 0=3DLeast-to-most */ - uint32_t raster_order; - - /* DMA FIFO threshold */ - uint32_t fifo_th; -}; - #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) =20 int tilcdc_crtc_create(struct drm_device *dev); irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc); void tilcdc_crtc_update_clk(struct drm_crtc *crtc); -void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc, - const struct tilcdc_panel_info *info); void tilcdc_crtc_shutdown(struct drm_crtc *crtc); void tilcdc_crtc_destroy(struct drm_crtc *crtc); int tilcdc_crtc_update_fb(struct drm_crtc *crtc, diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/til= cdc/tilcdc_external.c index 2970c41d9c3eb..81c90c2754c6c 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_external.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c @@ -14,18 +14,6 @@ #include "tilcdc_drv.h" #include "tilcdc_external.h" =20 -static const struct tilcdc_panel_info panel_info_default =3D { - .ac_bias =3D 255, - .ac_bias_intrpt =3D 0, - .dma_burst_sz =3D 16, - .bpp =3D 16, - .fdd =3D 0x80, - .tft_alt_mode =3D 0, - .sync_edge =3D 0, - .sync_ctrl =3D 1, - .raster_order =3D 0, -}; - static struct drm_connector *tilcdc_encoder_find_connector(struct drm_device *dde= v, struct drm_encoder *encoder) @@ -55,8 +43,6 @@ int tilcdc_attach_bridge(struct drm_device *ddev, struct = drm_bridge *bridge) if (ret) return ret; =20 - tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_default); - priv->external_connector =3D tilcdc_encoder_find_connector(ddev, priv->external_encoder); if (!priv->external_connector) --=20 2.43.0