From patchwork Wed Feb 8 02:25:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Zhong X-Patchwork-Id: 9561673 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 46D3260236 for ; Wed, 8 Feb 2017 02:30:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3894728438 for ; Wed, 8 Feb 2017 02:30:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2A80F28484; Wed, 8 Feb 2017 02:30:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.4 required=2.0 tests=BAYES_00, RCVD_IN_SORBS_SPAM autolearn=no version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C830028438 for ; Wed, 8 Feb 2017 02:30:39 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cbI1d-0005yG-5t; Wed, 08 Feb 2017 02:30:29 +0000 Received: from mail-pf0-f193.google.com ([209.85.192.193]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cbHxH-0002mj-NL; Wed, 08 Feb 2017 02:26:02 +0000 Received: by mail-pf0-f193.google.com with SMTP id e4so10479186pfg.0; Tue, 07 Feb 2017 18:25:38 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=tKTxod+BlUqXu3KdGjWfai5+yCDeGDMK4P6ySSjrXtE=; b=bSCc+2dLcwNgFj5eYxE88CkGsQZD3uvPEAwq1YtD1+DQtuplCJ9XNp5P3PjAHmWzpK PROF1oj/o7fDFOXemvhNPJhlRGmeAY3XbU41p7xT2N1Fx+hTpjQ6dGSithSeBvmdFyKU p4MaSIDnJeJ2yLlzoq9jbViLtZJoY3KGG0X0CPFNk0aeBjolOUx3mtFZdPxIBvd1LFZF T/BXMtvHrpr949KJIxtmfjZjyQrwZvVSgb7aR5qLK5z4x5UomK3A6fjqlv4ktaEnB1qJ UUVWZYKc+X1TWDVoJtEKd6x0dR8Vp6g5spLJHOW5hZFdwRfkSaMkcl+3BomDfMMa1/UB BJoA== X-Gm-Message-State: AIkVDXJj76GwrU+QG/u2KmapghXy9Y5Ts3ERMnXc+k8llhfAWFs0qAbwf5mZdMhxqZey1A== X-Received: by 10.99.226.83 with SMTP id y19mr23914762pgj.34.1486520738533; Tue, 07 Feb 2017 18:25:38 -0800 (PST) Received: from localhost.localdomain ([103.29.142.67]) by smtp.gmail.com with ESMTPSA id c204sm14659344pfb.51.2017.02.07.18.25.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 07 Feb 2017 18:25:37 -0800 (PST) From: Chris Zhong To: john@metanate.com, dianders@chromium.org, tfiga@chromium.org, heiko@sntech.de, yzq@rock-chips.com, mark.rutland@arm.com, devicetree@vger.kernel.org, robh+dt@kernel.org, galak@codeaurora.org, pawel.moll@arm.com, seanpaul@chromium.org Subject: [PATCH v6 2/6] drm/rockchip/dsi: dw-mipi: support RK3399 mipi dsi Date: Wed, 8 Feb 2017 10:25:18 +0800 Message-Id: <1486520722-8853-3-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1486520722-8853-1-git-send-email-zyw@rock-chips.com> References: <1486520722-8853-1-git-send-email-zyw@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170207_182600_142307_B8FA488C X-CRM114-Status: GOOD ( 16.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, Chris Zhong , linux-arm-kernel@lists.infradead.org, Mark Yao MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The vopb/vopl switch register of RK3399 mipi is different from RK3288, the default setting for mipi dsi mode is different too, so add a of_device_id structure to distinguish them, and make sure set the correct mode before mipi phy init. Signed-off-by: Chris Zhong Signed-off-by: Mark Yao Reviewed-by: Sean Paul --- Changes in v6: - no need check phy_cfg_clk before enable/disable Changes in v5: - check the error of phy_cfg_clk in dw_mipi_dsi_bind Changes in v4: - remove the unrelated change Changes in v3: - base on John Keeping's patch series drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 72 +++++++++++++++++++++++++++++----- 1 file changed, 62 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 3f24333..8f60b89 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -29,9 +29,17 @@ #define DRIVER_NAME "dw-mipi-dsi" -#define GRF_SOC_CON6 0x025c -#define DSI0_SEL_VOP_LIT (1 << 6) -#define DSI1_SEL_VOP_LIT (1 << 9) +#define RK3288_GRF_SOC_CON6 0x025c +#define RK3288_DSI0_SEL_VOP_LIT BIT(6) +#define RK3288_DSI1_SEL_VOP_LIT BIT(9) + +#define RK3399_GRF_SOC_CON19 0x6250 +#define RK3399_DSI0_SEL_VOP_LIT BIT(0) +#define RK3399_DSI1_SEL_VOP_LIT BIT(4) + +/* disable turnrequest, turndisable, forcetxstopmode, forcerxmode */ +#define RK3399_GRF_SOC_CON22 0x6258 +#define RK3399_GRF_DSI_MODE 0xffff0000 #define DSI_VERSION 0x00 #define DSI_PWR_UP 0x04 @@ -265,6 +273,11 @@ enum { }; struct dw_mipi_dsi_plat_data { + u32 dsi0_en_bit; + u32 dsi1_en_bit; + u32 grf_switch_reg; + u32 grf_dsi0_mode; + u32 grf_dsi0_mode_reg; unsigned int max_data_lanes; enum drm_mode_status (*mode_valid)(struct drm_connector *connector, struct drm_display_mode *mode); @@ -281,6 +294,7 @@ struct dw_mipi_dsi { struct clk *pllref_clk; struct clk *pclk; + struct clk *phy_cfg_clk; unsigned int lane_mbps; /* per lane */ u32 channel; @@ -425,6 +439,12 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLR); dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR); + ret = clk_prepare_enable(dsi->phy_cfg_clk); + if (ret) { + dev_err(dsi->dev, "Failed to enable phy_cfg_clk\n"); + return ret; + } + dw_mipi_dsi_phy_write(dsi, 0x10, BYPASS_VCO_RANGE | VCO_RANGE_CON_SEL(vco) | VCO_IN_CAP_CON_LOW | @@ -481,17 +501,18 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi) val, val & LOCK, 1000, PHY_STATUS_TIMEOUT_US); if (ret < 0) { dev_err(dsi->dev, "failed to wait for phy lock state\n"); - return ret; + goto phy_init_end; } ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, val, val & STOP_STATE_CLK_LANE, 1000, PHY_STATUS_TIMEOUT_US); - if (ret < 0) { + if (ret < 0) dev_err(dsi->dev, "failed to wait for phy clk lane stop state\n"); - return ret; - } + +phy_init_end: + clk_disable_unprepare(dsi->phy_cfg_clk); return ret; } @@ -960,6 +981,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) { struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder); struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; + const struct dw_mipi_dsi_plat_data *pdata = dsi->pdata; int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder); u32 val; int ret; @@ -985,6 +1007,10 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) dw_mipi_dsi_dphy_interface_config(dsi); dw_mipi_dsi_clear_err(dsi); + if (pdata->grf_dsi0_mode_reg) + regmap_write(dsi->grf_regmap, pdata->grf_dsi0_mode_reg, + pdata->grf_dsi0_mode); + dw_mipi_dsi_phy_init(dsi); dw_mipi_dsi_wait_for_two_frames(mode); @@ -998,11 +1024,11 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder) clk_disable_unprepare(dsi->pclk); if (mux) - val = DSI0_SEL_VOP_LIT | (DSI0_SEL_VOP_LIT << 16); + val = pdata->dsi0_en_bit | (pdata->dsi0_en_bit << 16); else - val = DSI0_SEL_VOP_LIT << 16; + val = pdata->dsi0_en_bit << 16; - regmap_write(dsi->grf_regmap, GRF_SOC_CON6, val); + regmap_write(dsi->grf_regmap, pdata->grf_switch_reg, val); dev_dbg(dsi->dev, "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG"); } @@ -1161,14 +1187,29 @@ static enum drm_mode_status rk3288_mipi_dsi_mode_valid( } static struct dw_mipi_dsi_plat_data rk3288_mipi_dsi_drv_data = { + .dsi0_en_bit = RK3288_DSI0_SEL_VOP_LIT, + .dsi1_en_bit = RK3288_DSI1_SEL_VOP_LIT, + .grf_switch_reg = RK3288_GRF_SOC_CON6, .max_data_lanes = 4, .mode_valid = rk3288_mipi_dsi_mode_valid, }; +static struct dw_mipi_dsi_plat_data rk3399_mipi_dsi_drv_data = { + .dsi0_en_bit = RK3399_DSI0_SEL_VOP_LIT, + .dsi1_en_bit = RK3399_DSI1_SEL_VOP_LIT, + .grf_switch_reg = RK3399_GRF_SOC_CON19, + .grf_dsi0_mode = RK3399_GRF_DSI_MODE, + .grf_dsi0_mode_reg = RK3399_GRF_SOC_CON22, + .max_data_lanes = 4, +}; + static const struct of_device_id dw_mipi_dsi_dt_ids[] = { { .compatible = "rockchip,rk3288-mipi-dsi", .data = &rk3288_mipi_dsi_drv_data, + }, { + .compatible = "rockchip,rk3399-mipi-dsi", + .data = &rk3399_mipi_dsi_drv_data, }, { /* sentinel */ } }; @@ -1248,6 +1289,17 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master, clk_disable_unprepare(dsi->pclk); } + dsi->phy_cfg_clk = devm_clk_get(dev, "phy_cfg"); + if (IS_ERR(dsi->phy_cfg_clk)) { + ret = PTR_ERR(dsi->phy_cfg_clk); + if (ret != -ENOENT) { + dev_err(dev, "Unable to get phy_cfg_clk: %d\n", ret); + return ret; + } + dsi->phy_cfg_clk = NULL; + dev_dbg(dev, "have not phy_cfg_clk\n"); + } + ret = clk_prepare_enable(dsi->pllref_clk); if (ret) { dev_err(dev, "%s: Failed to enable pllref_clk\n", __func__);