From patchwork Fri May 24 06:35:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xianwei Zhao via B4 Relay X-Patchwork-Id: 799175 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 F0A302207A; Fri, 24 May 2024 06:35:34 +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=1716532535; cv=none; b=HSpUy73TYBUyYxwuaIgUm6IMV/yVmT97q5Up6EdbXSl0dSu1mnFEgJZgSqSdec7+81n3E9FXJu3VVXlTre0aEsH/gd9LczZoc4fhqaMkiTrJWy8aIadq2KlG9M/cKf9NEpusVKxpeXSvy6xgXtb2XvzrR5HX8QRpswyP7uU03g4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716532535; c=relaxed/simple; bh=ks0yyEHzhf2hoBGsWlNtWBNlJ0xLFKy7RtVEWtXzxmo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=B9BxGWxeyUT9Q7th9EYdeIPaYNbw3axeWM/DqIDUbmG7YX2Yiv7azy0VgmvM8g2BLM8XRJ/nECgtEDFJtzLcEWL+0fLbQ5H10sMC1dAbxy2OShjXaEUvx8rdYnWJ5Ma+OB4HrgI7ya6YmuS/S6BjfKcy0OAXChRXnOm8gjErpTM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OuiGhPX8; 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="OuiGhPX8" Received: by smtp.kernel.org (Postfix) with ESMTPS id 6E9DAC2BBFC; Fri, 24 May 2024 06:35:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716532534; bh=ks0yyEHzhf2hoBGsWlNtWBNlJ0xLFKy7RtVEWtXzxmo=; h=From:Date:Subject:To:Cc:Reply-To:From; b=OuiGhPX8IeGhydH4T5uM2zrVtgddGh8fRBotyAOxMasXGLObsKIxYovpv7KZuHbhI qet+0+kKOdUjb0okaM/7ksfSOmZGQ1V1L2x4xpalN1ttcnleXF+CPqwkJsLtwy5H7B fg6fifz2lR0tHcK8KOK2lory+rX5ce31y2ov9CyuVp2OS2Lh6dEkx+5NTjVrEA7IyK ZzrdDpruIyyDgkEmAI1Lo6LnzlQeIcRuWXfbFAkQQToCXbkr5psW0az6Bwp0Sk0uvt OZq8ib7hJZRD+Pwm4sBlot6OiYdCMCJbZEO/lLy93gU3RbTOBRz8KaJq9bxQKtJqc8 S7/J4UpUCxpIw== 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 57E97C25B74; Fri, 24 May 2024 06:35:34 +0000 (UTC) From: Xianwei Zhao via B4 Relay Date: Fri, 24 May 2024 14:35:09 +0800 Subject: [PATCH] spi: meson-spicc: set SPI clock flag CLK_SET_RATE_PARENT Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240524-spi_pclk_setparent-v1-1-99e0ce70b66f@amlogic.com> X-B4-Tracking: v=1; b=H4sIABw1UGYC/x3MQQqAIBBA0avErBNyyqCuEhFiUw2FiRMRSHdPW r7F/wmEIpNAXySIdLPw6TN0WYDbrF9J8ZwNWGFTGWyUBJ6CO/ZJ6Ao2kr9UO1vsajRO6xpyGCI t/PzTYXzfD52+YXpkAAAA To: Mark Brown , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl Cc: linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, Xianwei Zhao , Sunny Luo X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1716532532; l=1803; i=xianwei.zhao@amlogic.com; s=20231208; h=from:subject:message-id; bh=i2kf4hjt27aFCniu/cvi7M+Wdce80gPI7LhS2KX7ULY=; b=ehUpQ96FcIL43Duzap4N1C5TOSDRp6ZTDXvwx0+NTo1ezJmCXPgZdeqeFOUDsub3YptIpzR9q oATZyZAAqSYC18IypOtnO7eSAWfPzir+KMzfpkM//iyvrIIRc6AhJXK X-Developer-Key: i=xianwei.zhao@amlogic.com; a=ed25519; pk=o4fDH8ZXL6xQg5h17eNzRljf6pwZHWWjqcOSsj3dW24= X-Endpoint-Received: by B4 Relay for xianwei.zhao@amlogic.com/20231208 with auth_id=107 X-Original-From: Xianwei Zhao Reply-To: xianwei.zhao@amlogic.com From: Xianwei Zhao Add SPI clock flag CLK_SET_RATE_PARENT for using pclk as parent clock. This gives SPI more flexibility in frequency selection. Signed-off-by: Xianwei Zhao Signed-off-by: Sunny Luo --- drivers/spi/spi-meson-spicc.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) --- base-commit: 3aac9f4885922ad0fc01b86f85903768219475a3 change-id: 20240524-spi_pclk_setparent-6da29325c113 Best regards, diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c index fc75492e50ff..8a4a8ba9dfed 100644 --- a/drivers/spi/spi-meson-spicc.c +++ b/drivers/spi/spi-meson-spicc.c @@ -644,11 +644,13 @@ static int meson_spicc_pow2_clk_init(struct meson_spicc_device *spicc) snprintf(name, sizeof(name), "%s#pow2_fixed_div", dev_name(dev)); init.name = name; init.ops = &clk_fixed_factor_ops; - init.flags = 0; - if (spicc->data->has_pclk) + if (spicc->data->has_pclk) { + init.flags = CLK_SET_RATE_PARENT; parent_data[0].hw = __clk_get_hw(spicc->pclk); - else + } else { + init.flags = 0; parent_data[0].hw = __clk_get_hw(spicc->core); + } init.num_parents = 1; pow2_fixed_div->mult = 1, @@ -708,11 +710,13 @@ static int meson_spicc_enh_clk_init(struct meson_spicc_device *spicc) snprintf(name, sizeof(name), "%s#enh_fixed_div", dev_name(dev)); init.name = name; init.ops = &clk_fixed_factor_ops; - init.flags = 0; - if (spicc->data->has_pclk) + if (spicc->data->has_pclk) { + init.flags = CLK_SET_RATE_PARENT; parent_data[0].hw = __clk_get_hw(spicc->pclk); - else + } else { + init.flags = 0; parent_data[0].hw = __clk_get_hw(spicc->core); + } init.num_parents = 1; enh_fixed_div->mult = 1,