From patchwork Tue Apr 15 21:22:16 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andr=C3=A9_Apitzsch?= X-Patchwork-Id: 14052819 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9913A25744B; Tue, 15 Apr 2025 21:22:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744752166; cv=none; b=EVtz70LI4yL0SuKe8xJ23wkBaUIC1EyxTD/B8z1V/1AaHncTCj48y4wFBKdSHS8JyyBV7iIAW6m4HqYuoSPlg04gzY1UcMEwOiLqu87dyLuJfLECpSIDY+uchOHEdYiKEgAnpS780ovH+ukUC/NzfH9jLNcH7WVpeenKTD0/UxM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744752166; c=relaxed/simple; bh=ZzFBBJ2yYE8++85sS7Vg0wPwgNOLdwgbucITe7dJnqw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=h+VEZcxsev/BoQssjdSfh2UlAQ3ukAYnCom0trmgGDjkEwqme2GjrKcxPKng5N8O+WX8LnDHnxP/aCxtx1CJeCb/atSRmvcpduFs/EWRGDOJAU2nBWEGz+3KMgcfYKtGot98l9F3AfcaPyafnHDJTFypPqWr5z4+ZM6UUzu44zU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=M16gCpsV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="M16gCpsV" Received: by smtp.kernel.org (Postfix) with ESMTPS id A9EAFC4CEF3; Tue, 15 Apr 2025 21:22:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744752165; bh=ZzFBBJ2yYE8++85sS7Vg0wPwgNOLdwgbucITe7dJnqw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=M16gCpsV70Yev0siKysDHF5cqXYlbs8m3LjlRMnjbzz73gNKu+w6KaKFccBkaliE/ 9i1BRcjz4V6Zw63d9DJl14MzjtpmgXiUIff0G+q33tANJ+P2eC8b4N5CFF/6tVlW+N Wn1RpPQ2hkOo52NEOjh+dHRE7zK13AWWBBhXv3zWdsDzuATDiJtT+d7V7Akm7VuNIe /zYmbycCDb9ZcJbVbvVirGCY4MXHRs3mNj/QeL2NZ5Wg8aCOtpUWJvzULs4pTwHhFL tCuvkrIBt3ITAFYTUAx56hjzkRK1CJLQkM2e2GmaJ2YT2tssfummedi47vkBDmm6T6 szFDnou+IRp5Q== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75254C369C4; Tue, 15 Apr 2025 21:22:45 +0000 (UTC) Date: Tue, 15 Apr 2025 23:22:16 +0200 Subject: [PATCH 2/4] media: i2c: imx214: Prepare for variable clock frequency Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250415-imx214_ccs_pll-v1-2-d3d7748e5fbd@apitzsch.eu> References: <20250415-imx214_ccs_pll-v1-0-d3d7748e5fbd@apitzsch.eu> In-Reply-To: <20250415-imx214_ccs_pll-v1-0-d3d7748e5fbd@apitzsch.eu> To: Ricardo Ribalda , Sakari Ailus , Mauro Carvalho Chehab Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Andr?= =?utf-8?q?=C3=A9_Apitzsch?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1744752164; l=3634; i=git@apitzsch.eu; s=20240325; h=from:subject:message-id; bh=PJiEoL3YRe0vhItyV5LGYUJJ6GQ9e5+lx7M+YxKABzE=; b=mSN+htP3WHtOs/RY9ziviZ+sXT5vuBiSE4X3q74BmPubIkjqUQa2n3sztltCG0D/jLFXTYPHm mg5W/ElhWraDgLsNbk06Ri6BwCB1d8t1rMoO1Tzhbj5jB+6nTA2ZU/M X-Developer-Key: i=git@apitzsch.eu; a=ed25519; pk=wxovcZRfvNYBMcTw4QFFtNEP4qv39gnBfnfyImXZxiU= X-Endpoint-Received: by B4 Relay for git@apitzsch.eu/20240325 with auth_id=142 X-Original-From: =?utf-8?q?Andr=C3=A9_Apitzsch?= Reply-To: git@apitzsch.eu From: =?utf-8?q?Andr=C3=A9_Apitzsch?= From: André Apitzsch Move clock frequency related parameters out of the constant register sequences, such that the hard coded external clock frequency can be replaced by a variable in the upcoming patches. Signed-off-by: André Apitzsch --- drivers/media/i2c/imx214.c | 54 ++++++++++++++++++++++++++-------------------- 1 file changed, 31 insertions(+), 23 deletions(-) diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index 0199195dcb7d12dc2ff253fe3eb77ddbcd0812a9..3aca6ebb02d649c1b7f0b6a6049c1e3aa3d08951 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -299,16 +299,6 @@ static const struct cci_reg_sequence mode_4096x2304[] = { { IMX214_REG_DIG_CROP_WIDTH, 4096 }, { IMX214_REG_DIG_CROP_HEIGHT, 2304 }, - { IMX214_REG_VTPXCK_DIV, 5 }, - { IMX214_REG_VTSYCK_DIV, 2 }, - { IMX214_REG_PREPLLCK_VT_DIV, 3 }, - { IMX214_REG_PLL_VT_MPY, 150 }, - { IMX214_REG_OPPXCK_DIV, 10 }, - { IMX214_REG_OPSYCK_DIV, 1 }, - { IMX214_REG_PLL_MULT_DRIV, IMX214_PLL_SINGLE }, - - { IMX214_REG_REQ_LINK_BIT_RATE, IMX214_LINK_BIT_RATE_MBPS(4800) }, - { CCI_REG8(0x3A03), 0x09 }, { CCI_REG8(0x3A04), 0x50 }, { CCI_REG8(0x3A05), 0x01 }, @@ -362,16 +352,6 @@ static const struct cci_reg_sequence mode_1920x1080[] = { { IMX214_REG_DIG_CROP_WIDTH, 1920 }, { IMX214_REG_DIG_CROP_HEIGHT, 1080 }, - { IMX214_REG_VTPXCK_DIV, 5 }, - { IMX214_REG_VTSYCK_DIV, 2 }, - { IMX214_REG_PREPLLCK_VT_DIV, 3 }, - { IMX214_REG_PLL_VT_MPY, 150 }, - { IMX214_REG_OPPXCK_DIV, 10 }, - { IMX214_REG_OPSYCK_DIV, 1 }, - { IMX214_REG_PLL_MULT_DRIV, IMX214_PLL_SINGLE }, - - { IMX214_REG_REQ_LINK_BIT_RATE, IMX214_LINK_BIT_RATE_MBPS(4800) }, - { CCI_REG8(0x3A03), 0x04 }, { CCI_REG8(0x3A04), 0xF8 }, { CCI_REG8(0x3A05), 0x02 }, @@ -405,9 +385,6 @@ static const struct cci_reg_sequence mode_table_common[] = { /* ATR setting */ { IMX214_REG_ATR_FAST_MOVE, 2 }, - /* external clock setting */ - { IMX214_REG_EXCK_FREQ, IMX214_EXCK_FREQ(IMX214_DEFAULT_CLK_FREQ / 1000000) }, - /* global setting */ /* basic config */ { IMX214_REG_MASK_CORR_FRAMES, IMX214_CORR_FRAMES_MASK }, @@ -777,6 +754,24 @@ static int imx214_entity_init_state(struct v4l2_subdev *subdev, return 0; } +static int imx214_configure_pll(struct imx214 *imx214) +{ + int ret = 0; + + cci_write(imx214->regmap, IMX214_REG_VTPXCK_DIV, 5, &ret); + cci_write(imx214->regmap, IMX214_REG_VTSYCK_DIV, 2, &ret); + cci_write(imx214->regmap, IMX214_REG_PREPLLCK_VT_DIV, 3, &ret); + cci_write(imx214->regmap, IMX214_REG_PLL_VT_MPY, 150, &ret); + cci_write(imx214->regmap, IMX214_REG_OPPXCK_DIV, 10, &ret); + cci_write(imx214->regmap, IMX214_REG_OPSYCK_DIV, 1, &ret); + cci_write(imx214->regmap, IMX214_REG_PLL_MULT_DRIV, + IMX214_PLL_SINGLE, &ret); + cci_write(imx214->regmap, IMX214_REG_EXCK_FREQ, + IMX214_EXCK_FREQ(IMX214_DEFAULT_CLK_FREQ / 1000000), &ret); + + return ret; +} + static int imx214_update_digital_gain(struct imx214 *imx214, u32 val) { int ret = 0; @@ -1020,6 +1015,19 @@ static int imx214_start_streaming(struct imx214 *imx214) return ret; } + ret = imx214_configure_pll(imx214); + if (ret) { + dev_err(imx214->dev, "failed to configure PLL %d\n", ret); + return ret; + } + + ret = cci_write(imx214->regmap, IMX214_REG_REQ_LINK_BIT_RATE, + IMX214_LINK_BIT_RATE_MBPS(4800), NULL); + if (ret) { + dev_err(imx214->dev, "failed to configure link bit rate\n"); + return ret; + } + ret = cci_write(imx214->regmap, IMX214_REG_CSI_LANE_MODE, IMX214_CSI_4_LANE_MODE, NULL); if (ret) {