From patchwork Mon Aug 22 13:05:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 12950599 X-Patchwork-Delegate: kieran@bingham.xyz 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEF11C28D13 for ; Mon, 22 Aug 2022 13:05:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234915AbiHVNFb (ORCPT ); Mon, 22 Aug 2022 09:05:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234893AbiHVNFb (ORCPT ); Mon, 22 Aug 2022 09:05:31 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D451D1E3CE for ; Mon, 22 Aug 2022 06:05:30 -0700 (PDT) Received: from deskari.lan (91-158-154-79.elisa-laajakaista.fi [91.158.154.79]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 04C1D3F1; Mon, 22 Aug 2022 15:05:28 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1661173529; bh=ggAkbBrc69fZBdc3E7G2PLBsQNNp8l7FlY0iX3fB/fA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jSfeCSQ+KEyXRwKMu1G6bjFJVOzSxT32IclGeQ/lR7Ea026fM9ccCHY4e6d88dvu9 PaNlw83UZyJsxlHAHIzhtOeJNVZRXld3tuNjMTGep9bFxPBm3a0GMG0vFDbHqpS2HH ffJaRFGej6CLmOPKr7OlD+uzDCH7I2NKPKxGdFuA= From: Tomi Valkeinen To: Laurent Pinchart , Kieran Bingham , dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org Cc: Tomi Valkeinen Subject: [PATCH v2 1/4] drm: rcar-du: dsi: Properly stop video mode TX Date: Mon, 22 Aug 2022 16:05:09 +0300 Message-Id: <20220822130513.119029-2-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> References: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org From: Tomi Valkeinen The driver does not explicitly stop the video mode transmission when disabling the output. While this doesn't seem to be causing any issues, lets follow the steps described in the documentation and add a rcar_mipi_dsi_stop_video() which stop the video mode transmission. This function will also be used in later patches to stop the video transmission even if the DSI IP is not shut down. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c | 29 +++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c index 62f7eb84ab01..7f2be490fcf8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c +++ b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c @@ -542,6 +542,34 @@ static int rcar_mipi_dsi_start_video(struct rcar_mipi_dsi *dsi) return 0; } +static void rcar_mipi_dsi_stop_video(struct rcar_mipi_dsi *dsi) +{ + u32 status; + int ret; + + /* Disable transmission in video mode. */ + rcar_mipi_dsi_clr(dsi, TXVMCR, TXVMCR_EN_VIDEO); + + ret = read_poll_timeout(rcar_mipi_dsi_read, status, + !(status & TXVMSR_ACT), + 2000, 100000, false, dsi, TXVMSR); + if (ret < 0) { + dev_err(dsi->dev, "Failed to disable video transmission\n"); + return; + } + + /* Assert video FIFO clear. */ + rcar_mipi_dsi_set(dsi, TXVMCR, TXVMCR_VFCLR); + + ret = read_poll_timeout(rcar_mipi_dsi_read, status, + !(status & TXVMSR_VFRDY), + 2000, 100000, false, dsi, TXVMSR); + if (ret < 0) { + dev_err(dsi->dev, "Failed to assert video FIFO clear\n"); + return; + } +} + /* ----------------------------------------------------------------------------- * Bridge */ @@ -601,6 +629,7 @@ static void rcar_mipi_dsi_atomic_disable(struct drm_bridge *bridge, { struct rcar_mipi_dsi *dsi = bridge_to_rcar_mipi_dsi(bridge); + rcar_mipi_dsi_stop_video(dsi); rcar_mipi_dsi_shutdown(dsi); rcar_mipi_dsi_clk_disable(dsi); } From patchwork Mon Aug 22 13:05:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 12950601 X-Patchwork-Delegate: kieran@bingham.xyz 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 319BCC28D13 for ; Mon, 22 Aug 2022 13:05:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234803AbiHVNFe (ORCPT ); Mon, 22 Aug 2022 09:05:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234891AbiHVNFd (ORCPT ); Mon, 22 Aug 2022 09:05:33 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BC6B1E6 for ; Mon, 22 Aug 2022 06:05:32 -0700 (PDT) Received: from deskari.lan (91-158-154-79.elisa-laajakaista.fi [91.158.154.79]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 7518A505; Mon, 22 Aug 2022 15:05:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1661173529; bh=5lpbfI6i7gqv31q/gfgfED7/lvFmTLnPks+3kgG2pfQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OlHpzOmd5u1qBd9GxFzQqTzTWCHskC5GQNcSU7GvbLG4Ho+rAPLhOkU7cmzusDXLU Xa8nRG10wVXC2J0dMHxZlQEMnOxXEeWxnkVq0l0HmSoZ2xG71nox6KMtQuexWtRUtS TxdZ06aEQNhAUOwqNUos6WyHd/D7UDkUtuHon7NE= From: Tomi Valkeinen To: Laurent Pinchart , Kieran Bingham , dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org Cc: Tomi Valkeinen Subject: [PATCH v2 2/4] drm: rcar-du: dsi: Improve DSI shutdown Date: Mon, 22 Aug 2022 16:05:10 +0300 Message-Id: <20220822130513.119029-3-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> References: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org From: Tomi Valkeinen Improve the DSI shutdown procedure by clearing various bits that were set while enabling the DSI output. There has been no clear issues caused by these, but it's safer to ensure that the features are disabled at the start of the next DSI enable. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c index 7f2be490fcf8..6a10a35f1122 100644 --- a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c +++ b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c @@ -441,9 +441,21 @@ static int rcar_mipi_dsi_startup(struct rcar_mipi_dsi *dsi, static void rcar_mipi_dsi_shutdown(struct rcar_mipi_dsi *dsi) { + /* Disable VCLKEN */ + rcar_mipi_dsi_clr(dsi, VCLKEN, VCLKEN_CKEN); + + /* Disable DOT clock */ + rcar_mipi_dsi_clr(dsi, VCLKSET, VCLKSET_CKEN); + rcar_mipi_dsi_clr(dsi, PHYSETUP, PHYSETUP_RSTZ); rcar_mipi_dsi_clr(dsi, PHYSETUP, PHYSETUP_SHUTDOWNZ); + /* CFGCLK disable */ + rcar_mipi_dsi_clr(dsi, CFGCLKSET, CFGCLKSET_CKEN); + + /* LPCLK disable */ + rcar_mipi_dsi_clr(dsi, LPCLKSET, LPCLKSET_CKEN); + dev_dbg(dsi->dev, "DSI device is shutdown\n"); } From patchwork Mon Aug 22 13:05:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 12950602 X-Patchwork-Delegate: kieran@bingham.xyz 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33A36C32793 for ; Mon, 22 Aug 2022 13:05:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234867AbiHVNFf (ORCPT ); Mon, 22 Aug 2022 09:05:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44046 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229637AbiHVNFd (ORCPT ); Mon, 22 Aug 2022 09:05:33 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2E48E03F for ; Mon, 22 Aug 2022 06:05:32 -0700 (PDT) Received: from deskari.lan (91-158-154-79.elisa-laajakaista.fi [91.158.154.79]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id EA52A6BB; Mon, 22 Aug 2022 15:05:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1661173530; bh=WeWJuSffl2mUge/GVNfJ+6OytCCzMfMhEnBPs00p7rU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sUxRjEmw2mUd28Tc1NRYZhoWg318OrypUTtMFqdz+22ht9VBrwLOw658+BDGNrzwP hVQdK6huY/5epQiPSopGHyN39hXrfQpUvM9u/qqVHRlch1AtauRvrk4nOP4khj21At mz89TpEY8TA/v3SJ03KEdJb/ckeOOg27o4wI1zzo= From: Tomi Valkeinen To: Laurent Pinchart , Kieran Bingham , dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org Cc: Tomi Valkeinen Subject: [PATCH v2 3/4] drm: rcar-du: fix DSI enable & disable sequence Date: Mon, 22 Aug 2022 16:05:11 +0300 Message-Id: <20220822130513.119029-4-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> References: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org From: Tomi Valkeinen The rcar crtc depends on the clock provided from the rcar DSI bridge. When the DSI bridge is disabled, the clock is stopped, which causes the crtc disable to timeout. Also, while I have no issue with the enable, the documentation suggests to enable the DSI before the crtc so that the crtc has its clock enabled at enable time. This is also not done by the current driver. To fix this, we need to keep the DSI bridge enabled until the crtc has disabled itself, and enable the DSI bridge before crtc enables itself. Add functions (rcar_mipi_dsi_atomic_early_enable and rcar_mipi_dsi_atomic_late_disable) to the rcar DSI bridge driver which the rcar driver can use to enable/disable the DSI clock when needed. This is similar to what is already done with the rcar LVDS bridge. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reported-by: kernel test robot Reported-by: kernel test robot --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 26 +++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 2 ++ drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 4 +++ drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c | 25 +++++++++++++----- drivers/gpu/drm/rcar-du/rcar_mipi_dsi.h | 31 +++++++++++++++++++++++ 5 files changed, 82 insertions(+), 6 deletions(-) create mode 100644 drivers/gpu/drm/rcar-du/rcar_mipi_dsi.h diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index fd3b94649a01..31e33270e6db 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -29,6 +29,7 @@ #include "rcar_du_regs.h" #include "rcar_du_vsp.h" #include "rcar_lvds.h" +#include "rcar_mipi_dsi.h" static u32 rcar_du_crtc_read(struct rcar_du_crtc *rcrtc, u32 reg) { @@ -747,6 +748,18 @@ static void rcar_du_crtc_atomic_enable(struct drm_crtc *crtc, rcar_lvds_clk_enable(bridge, mode->clock * 1000); } + /* + * Similarly to LVDS, on V3U the dot clock is provided by the DSI + * encoder, and we need to enable the DSI clocks before enabling the CRTC. + */ + if ((rcdu->info->dsi_clk_mask & BIT(rcrtc->index)) && + (rstate->outputs & + (BIT(RCAR_DU_OUTPUT_DSI0) | BIT(RCAR_DU_OUTPUT_DSI1)))) { + struct drm_bridge *bridge = rcdu->dsi[rcrtc->index]; + + rcar_mipi_dsi_pclk_enable(bridge, state); + } + rcar_du_crtc_start(rcrtc); /* @@ -780,6 +793,19 @@ static void rcar_du_crtc_atomic_disable(struct drm_crtc *crtc, rcar_lvds_clk_disable(bridge); } + if ((rcdu->info->dsi_clk_mask & BIT(rcrtc->index)) && + (rstate->outputs & + (BIT(RCAR_DU_OUTPUT_DSI0) | BIT(RCAR_DU_OUTPUT_DSI1)))) { + struct drm_bridge *bridge = rcdu->dsi[rcrtc->index]; + + /* + * Disable the DSI clock output, see + * rcar_du_crtc_atomic_enable(). + */ + + rcar_mipi_dsi_pclk_disable(bridge); + } + spin_lock_irq(&crtc->dev->event_lock); if (crtc->state->event) { drm_crtc_send_vblank_event(crtc, crtc->state->event); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index bfad7775d9a1..9367c2f59431 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -91,6 +91,7 @@ struct rcar_du_device_info { #define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2) #define RCAR_DU_MAX_VSPS 4 #define RCAR_DU_MAX_LVDS 2 +#define RCAR_DU_MAX_DSI 2 struct rcar_du_device { struct device *dev; @@ -107,6 +108,7 @@ struct rcar_du_device { struct platform_device *cmms[RCAR_DU_MAX_CRTCS]; struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS]; struct drm_bridge *lvds[RCAR_DU_MAX_LVDS]; + struct drm_bridge *dsi[RCAR_DU_MAX_DSI]; struct { struct drm_property *colorkey; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 60d6be78323b..ac93e08e8af4 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -84,6 +84,10 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, if (output == RCAR_DU_OUTPUT_LVDS0 || output == RCAR_DU_OUTPUT_LVDS1) rcdu->lvds[output - RCAR_DU_OUTPUT_LVDS0] = bridge; + + if (output == RCAR_DU_OUTPUT_DSI0 || + output == RCAR_DU_OUTPUT_DSI1) + rcdu->dsi[output - RCAR_DU_OUTPUT_DSI0] = bridge; } /* diff --git a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c index 6a10a35f1122..b8fabf821a12 100644 --- a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c +++ b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c @@ -598,7 +598,22 @@ static int rcar_mipi_dsi_attach(struct drm_bridge *bridge, static void rcar_mipi_dsi_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { - struct drm_atomic_state *state = old_bridge_state->base.state; + struct rcar_mipi_dsi *dsi = bridge_to_rcar_mipi_dsi(bridge); + + rcar_mipi_dsi_start_video(dsi); +} + +static void rcar_mipi_dsi_atomic_disable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) +{ + struct rcar_mipi_dsi *dsi = bridge_to_rcar_mipi_dsi(bridge); + + rcar_mipi_dsi_stop_video(dsi); +} + +void rcar_mipi_dsi_pclk_enable(struct drm_bridge *bridge, + struct drm_atomic_state *state) +{ struct rcar_mipi_dsi *dsi = bridge_to_rcar_mipi_dsi(bridge); const struct drm_display_mode *mode; struct drm_connector *connector; @@ -626,8 +641,6 @@ static void rcar_mipi_dsi_atomic_enable(struct drm_bridge *bridge, if (ret < 0) goto err_dsi_start_hs; - rcar_mipi_dsi_start_video(dsi); - return; err_dsi_start_hs: @@ -635,16 +648,16 @@ static void rcar_mipi_dsi_atomic_enable(struct drm_bridge *bridge, err_dsi_startup: rcar_mipi_dsi_clk_disable(dsi); } +EXPORT_SYMBOL_GPL(rcar_mipi_dsi_pclk_enable); -static void rcar_mipi_dsi_atomic_disable(struct drm_bridge *bridge, - struct drm_bridge_state *old_bridge_state) +void rcar_mipi_dsi_pclk_disable(struct drm_bridge *bridge) { struct rcar_mipi_dsi *dsi = bridge_to_rcar_mipi_dsi(bridge); - rcar_mipi_dsi_stop_video(dsi); rcar_mipi_dsi_shutdown(dsi); rcar_mipi_dsi_clk_disable(dsi); } +EXPORT_SYMBOL_GPL(rcar_mipi_dsi_pclk_disable); static enum drm_mode_status rcar_mipi_dsi_bridge_mode_valid(struct drm_bridge *bridge, diff --git a/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.h b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.h new file mode 100644 index 000000000000..ff759fc5edc7 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_mipi_dsi.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * R-Car DSI Encoder + * + * Copyright (C) 2022 Renesas Electronics Corporation + * + * Contact: Tomi Valkeinen + */ + +#ifndef __RCAR_MIPI_DSI_H__ +#define __RCAR_MIPI_DSI_H__ + +struct drm_atomic_state; +struct drm_bridge; + +#if IS_ENABLED(CONFIG_DRM_RCAR_MIPI_DSI) +void rcar_mipi_dsi_pclk_enable(struct drm_bridge *bridge, + struct drm_atomic_state *state); +void rcar_mipi_dsi_pclk_disable(struct drm_bridge *bridge); +#else +static inline void rcar_mipi_dsi_pclk_enable(struct drm_bridge *bridge, + struct drm_atomic_state *state) +{ +} + +void rcar_mipi_dsi_pclk_disable(struct drm_bridge *bridge) +{ +} +#endif /* CONFIG_DRM_RCAR_MIPI_DSI */ + +#endif /* __RCAR_MIPI_DSI_H__ */ From patchwork Mon Aug 22 13:05:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 12950603 X-Patchwork-Delegate: kieran@bingham.xyz 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86544C28D13 for ; Mon, 22 Aug 2022 13:05:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235024AbiHVNFo (ORCPT ); Mon, 22 Aug 2022 09:05:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234891AbiHVNFg (ORCPT ); Mon, 22 Aug 2022 09:05:36 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B4281CB31 for ; Mon, 22 Aug 2022 06:05:34 -0700 (PDT) Received: from deskari.lan (91-158-154-79.elisa-laajakaista.fi [91.158.154.79]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 698A36D4; Mon, 22 Aug 2022 15:05:30 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1661173530; bh=7R8Hf0umbfWe0usPPFyjHCFuDnIfJ1jmMTIHW0D13hA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H6wWcBRloiWcBq+ReaFtz3AILcFv9nUIQyi39glZDQnvdoR5xmC7ut0pwIpZu+9JY Q1CaIB3ehTykB4CqJwVnEoJk8Heg8ANztOsTs/CT39z3HfLzh2lHUbV4HSWZYITDrp FCSVKIKwOkoNkbQwVwrDTpBsyl4nc0zAF+OFVpsM= From: Tomi Valkeinen To: Laurent Pinchart , Kieran Bingham , dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org Cc: Tomi Valkeinen Subject: [PATCH v2 4/4] drm: rcar-du: lvds: Rename pclk enable/disable functions Date: Mon, 22 Aug 2022 16:05:12 +0300 Message-Id: <20220822130513.119029-5-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> References: <20220822130513.119029-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org From: Tomi Valkeinen Rename LVDS pclk enable/disable functions to match what we use for DSI. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reported-by: kernel test robot --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 4 ++-- drivers/gpu/drm/rcar-du/rcar_lvds.c | 4 ++-- drivers/gpu/drm/rcar-du/rcar_lvds.h | 10 +++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 31e33270e6db..3619e1ddeb62 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -745,7 +745,7 @@ static void rcar_du_crtc_atomic_enable(struct drm_crtc *crtc, const struct drm_display_mode *mode = &crtc->state->adjusted_mode; - rcar_lvds_clk_enable(bridge, mode->clock * 1000); + rcar_lvds_pclk_enable(bridge, mode->clock * 1000); } /* @@ -790,7 +790,7 @@ static void rcar_du_crtc_atomic_disable(struct drm_crtc *crtc, * Disable the LVDS clock output, see * rcar_du_crtc_atomic_enable(). */ - rcar_lvds_clk_disable(bridge); + rcar_lvds_pclk_disable(bridge); } if ((rcdu->info->dsi_clk_mask & BIT(rcrtc->index)) && diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c index d85aa4bc7f84..f438d7d858c7 100644 --- a/drivers/gpu/drm/rcar-du/rcar_lvds.c +++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c @@ -306,7 +306,7 @@ static void rcar_lvds_pll_setup_d3_e3(struct rcar_lvds *lvds, unsigned int freq) * Clock - D3/E3 only */ -int rcar_lvds_clk_enable(struct drm_bridge *bridge, unsigned long freq) +int rcar_lvds_pclk_enable(struct drm_bridge *bridge, unsigned long freq) { struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); int ret; @@ -326,7 +326,7 @@ int rcar_lvds_clk_enable(struct drm_bridge *bridge, unsigned long freq) } EXPORT_SYMBOL_GPL(rcar_lvds_clk_enable); -void rcar_lvds_clk_disable(struct drm_bridge *bridge) +void rcar_lvds_pclk_disable(struct drm_bridge *bridge) { struct rcar_lvds *lvds = bridge_to_rcar_lvds(bridge); diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.h b/drivers/gpu/drm/rcar-du/rcar_lvds.h index 3097bf749bec..bee7033b60d6 100644 --- a/drivers/gpu/drm/rcar-du/rcar_lvds.h +++ b/drivers/gpu/drm/rcar-du/rcar_lvds.h @@ -13,17 +13,17 @@ struct drm_bridge; #if IS_ENABLED(CONFIG_DRM_RCAR_LVDS) -int rcar_lvds_clk_enable(struct drm_bridge *bridge, unsigned long freq); -void rcar_lvds_clk_disable(struct drm_bridge *bridge); +int rcar_lvds_pclk_enable(struct drm_bridge *bridge, unsigned long freq); +void rcar_lvds_pclk_disable(struct drm_bridge *bridge); bool rcar_lvds_dual_link(struct drm_bridge *bridge); bool rcar_lvds_is_connected(struct drm_bridge *bridge); #else -static inline int rcar_lvds_clk_enable(struct drm_bridge *bridge, - unsigned long freq) +static inline int rcar_lvds_pclk_enable(struct drm_bridge *bridge, + unsigned long freq) { return -ENOSYS; } -static inline void rcar_lvds_clk_disable(struct drm_bridge *bridge) { } +static inline void rcar_lvds_pclk_disable(struct drm_bridge *bridge) { } static inline bool rcar_lvds_dual_link(struct drm_bridge *bridge) { return false;