From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9AA1CC433FE for ; Mon, 25 Oct 2021 19:50:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7B65D6023B for ; Mon, 25 Oct 2021 19:50:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236247AbhJYTxJ (ORCPT ); Mon, 25 Oct 2021 15:53:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:37142 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238012AbhJYTrh (ORCPT ); Mon, 25 Oct 2021 15:47:37 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9579E6121F; Mon, 25 Oct 2021 19:40:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1635190825; bh=CQl8tkXax3fFE35ErFqQ7DKH+g9XyLbaOeLeqgTW3mI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KFYtBItf66cIPCqPnP4IRYN5D2g1/3aCNR/WA3wnsp3GMjoru77Nv8sXTRIHAiIv0 evkqBTawwhlrqejQILYw2VQEs8s7WquoQ6qExfHmSENtGB3SVy+hOokuciK8DUtf0/ ucuUnl6LhkupMm4Th1onUuE8DRM5B9uu7XJJZe6o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Edmund Dea , Anitha Chrisanthus , Sam Ravnborg , Maarten Lankhorst , Sasha Levin Subject: [PATCH 5.14 062/169] drm/kmb: Enable ADV bridge after modeset Date: Mon, 25 Oct 2021 21:14:03 +0200 Message-Id: <20211025191025.331968983@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211025191017.756020307@linuxfoundation.org> References: <20211025191017.756020307@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Anitha Chrisanthus [ Upstream commit 74056092ff415e7e20ce2544689b32ee811c4f0b ] On KMB, ADV bridge must be programmed and powered on prior to MIPI DSI HW initialization. v2: changed to atomic_bridge_chain_enable (Sam) Fixes: 98521f4d4b4c ("drm/kmb: Mipi DSI part of the display driver") Co-developed-by: Edmund Dea Signed-off-by: Edmund Dea Signed-off-by: Anitha Chrisanthus Link: https://patchwork.freedesktop.org/patch/msgid/20211019230719.789958-1-anitha.chrisanthus@intel.com Acked-by: Sam Ravnborg Signed-off-by: Maarten Lankhorst Signed-off-by: Sasha Levin --- drivers/gpu/drm/kmb/kmb_crtc.c | 7 ++++--- drivers/gpu/drm/kmb/kmb_dsi.c | 9 +++++---- drivers/gpu/drm/kmb/kmb_dsi.h | 2 +- 3 files changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c index 44327bc629ca..4f240466cf63 100644 --- a/drivers/gpu/drm/kmb/kmb_crtc.c +++ b/drivers/gpu/drm/kmb/kmb_crtc.c @@ -66,7 +66,8 @@ static const struct drm_crtc_funcs kmb_crtc_funcs = { .disable_vblank = kmb_crtc_disable_vblank, }; -static void kmb_crtc_set_mode(struct drm_crtc *crtc) +static void kmb_crtc_set_mode(struct drm_crtc *crtc, + struct drm_atomic_state *old_state) { struct drm_device *dev = crtc->dev; struct drm_display_mode *m = &crtc->state->adjusted_mode; @@ -75,7 +76,7 @@ static void kmb_crtc_set_mode(struct drm_crtc *crtc) unsigned int val = 0; /* Initialize mipi */ - kmb_dsi_mode_set(kmb->kmb_dsi, m, kmb->sys_clk_mhz); + kmb_dsi_mode_set(kmb->kmb_dsi, m, kmb->sys_clk_mhz, old_state); drm_info(dev, "vfp= %d vbp= %d vsync_len=%d hfp=%d hbp=%d hsync_len=%d\n", m->crtc_vsync_start - m->crtc_vdisplay, @@ -138,7 +139,7 @@ static void kmb_crtc_atomic_enable(struct drm_crtc *crtc, struct kmb_drm_private *kmb = crtc_to_kmb_priv(crtc); clk_prepare_enable(kmb->kmb_clk.clk_lcd); - kmb_crtc_set_mode(crtc); + kmb_crtc_set_mode(crtc, state); drm_crtc_vblank_on(crtc); } diff --git a/drivers/gpu/drm/kmb/kmb_dsi.c b/drivers/gpu/drm/kmb/kmb_dsi.c index 5bc6c84073a3..756490589e0a 100644 --- a/drivers/gpu/drm/kmb/kmb_dsi.c +++ b/drivers/gpu/drm/kmb/kmb_dsi.c @@ -1331,7 +1331,8 @@ static u32 mipi_tx_init_dphy(struct kmb_dsi *kmb_dsi, return 0; } -static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi) +static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi, + struct drm_atomic_state *old_state) { struct regmap *msscam; @@ -1340,7 +1341,7 @@ static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi) dev_dbg(kmb_dsi->dev, "failed to get msscam syscon"); return; } - + drm_atomic_bridge_chain_enable(adv_bridge, old_state); /* DISABLE MIPI->CIF CONNECTION */ regmap_write(msscam, MSS_MIPI_CIF_CFG, 0); @@ -1351,7 +1352,7 @@ static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi) } int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode, - int sys_clk_mhz) + int sys_clk_mhz, struct drm_atomic_state *old_state) { u64 data_rate; @@ -1399,7 +1400,7 @@ int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode, /* Dphy initialization */ mipi_tx_init_dphy(kmb_dsi, &mipi_tx_init_cfg); - connect_lcd_to_mipi(kmb_dsi); + connect_lcd_to_mipi(kmb_dsi, old_state); dev_info(kmb_dsi->dev, "mipi hw initialized"); return 0; diff --git a/drivers/gpu/drm/kmb/kmb_dsi.h b/drivers/gpu/drm/kmb/kmb_dsi.h index 66b7c500d9bc..09dc88743d77 100644 --- a/drivers/gpu/drm/kmb/kmb_dsi.h +++ b/drivers/gpu/drm/kmb/kmb_dsi.h @@ -380,7 +380,7 @@ int kmb_dsi_host_bridge_init(struct device *dev); struct kmb_dsi *kmb_dsi_init(struct platform_device *pdev); void kmb_dsi_host_unregister(struct kmb_dsi *kmb_dsi); int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode, - int sys_clk_mhz); + int sys_clk_mhz, struct drm_atomic_state *old_state); int kmb_dsi_map_mmio(struct kmb_dsi *kmb_dsi); int kmb_dsi_clk_init(struct kmb_dsi *kmb_dsi); int kmb_dsi_encoder_init(struct drm_device *dev, struct kmb_dsi *kmb_dsi); -- 2.33.0