From patchwork Wed Sep 20 14:35:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 13392908 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 3C75CCE79DD for ; Wed, 20 Sep 2023 14:37:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 496BE10E4F0; Wed, 20 Sep 2023 14:37:10 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0A27F897FF for ; Wed, 20 Sep 2023 14:36:54 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 84EA961CDB; Wed, 20 Sep 2023 14:36:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 022C6C433C7; Wed, 20 Sep 2023 14:36:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695220613; bh=+5JYn8V0UryLv4NGrPj7TOsjDrccf86rOvDhC/BodNA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OZ+I9FweOxmoztsNgrZKhkpeT+XT95IbLMipMLu5MJZc0HRbOOUWSF43KXcGkgYUl BJrctQwvixE+bhBA2aETCX7R/Ko1ptlgF5eJUfC3skeomdN5cZzNQe0J7QA3g6nPTN WaLmnAdaWBPTX1VmtIZkPQxIRZXS2VxctqN8S4dxbo6VjcEe9EWqH/n9Y0S2p5lkEO 1MfGfTXRPkcln77bnIWBhECU710sRjkqu4uj9kAyE+wTMdl3YckBv0P9+K8mD5ZWy4 S7EnEOaRB7GGcy0zzkwdB0hrHWisMMI8NsOr2QeY4u4UxbwsDtmiT1kK9O8YPcX33p eki/lFY9aXbig== From: Maxime Ripard Date: Wed, 20 Sep 2023 16:35:40 +0200 Subject: [PATCH RFC v2 25/37] drm/rockchip: inno_hdmi: Remove tmds rate from structure MIME-Version: 1.0 Message-Id: <20230920-kms-hdmi-connector-state-v2-25-17932daddd7d@kernel.org> References: <20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@kernel.org> In-Reply-To: <20230920-kms-hdmi-connector-state-v2-0-17932daddd7d@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Emma Anholt , Jonathan Corbet , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2323; i=mripard@kernel.org; h=from:subject:message-id; bh=+5JYn8V0UryLv4NGrPj7TOsjDrccf86rOvDhC/BodNA=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDKnczFZ/GBMFIp6xPXgu080ROWHOi8nTDJ7sN3Nq6wu7m rLGtLato5SFQYyLQVZMkSVG2HxJ3KlZrzvZ+ObBzGFlAhnCwMUpABPhn8TIcO3Nz8eNgsvVn2U2 NAVeq/3q9eNyVNKvEwvzU5fNm3J7swzD/zCBMN308Lm/RM3XZjHPe1FsxMTHazipxzph76y83j0 uDAA= X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D 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: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Hans Verkuil , linux-rockchip@lists.infradead.org, Maxime Ripard , linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The tmds_rate field in the inno_hdmi structure is used mostly to configure the internal i2c controller divider through a call to the inno_hdmi_i2c_init() function. We can simply make that rate an argument to that function, which also removes a workaround to initialize the divider at probe time when we don't have a mode yet. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/rockchip/inno_hdmi.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c index f05417c6b637..35f44e556fcf 100644 --- a/drivers/gpu/drm/rockchip/inno_hdmi.c +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c @@ -50,8 +50,6 @@ struct inno_hdmi { struct inno_hdmi_i2c *i2c; struct i2c_adapter *ddc; - - unsigned int tmds_rate; }; static struct inno_hdmi *encoder_to_inno_hdmi(struct drm_encoder *encoder) @@ -155,11 +153,11 @@ static inline void hdmi_modb(struct inno_hdmi *hdmi, u16 offset, hdmi_writeb(hdmi, offset, temp); } -static void inno_hdmi_i2c_init(struct inno_hdmi *hdmi) +static void inno_hdmi_i2c_init(struct inno_hdmi *hdmi, unsigned long long rate) { - int ddc_bus_freq; + unsigned long long ddc_bus_freq = rate >> 2; - ddc_bus_freq = (hdmi->tmds_rate >> 2) / HDMI_SCL_RATE; + do_div(ddc_bus_freq, HDMI_SCL_RATE); hdmi_writeb(hdmi, DDC_BUS_FREQ_L, ddc_bus_freq & 0xFF); hdmi_writeb(hdmi, DDC_BUS_FREQ_H, (ddc_bus_freq >> 8) & 0xFF); @@ -389,8 +387,7 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi, * DCLK_LCDC, so we need to init the TMDS rate to mode pixel * clock rate, and reconfigure the DDC clock. */ - hdmi->tmds_rate = mode->clock * 1000; - inno_hdmi_i2c_init(hdmi); + inno_hdmi_i2c_init(hdmi, mode->clock * 1000); /* Unmute video and audio output */ hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK, @@ -768,8 +765,7 @@ static int inno_hdmi_bind(struct device *dev, struct device *master, * PCLK_HDMI, so we need to init the TMDS rate to PCLK rate, * and reconfigure the DDC clock. */ - hdmi->tmds_rate = clk_get_rate(hdmi->pclk); - inno_hdmi_i2c_init(hdmi); + inno_hdmi_i2c_init(hdmi, clk_get_rate(hdmi->pclk)); ret = inno_hdmi_register(drm, hdmi); if (ret)