From mboxrd@z Thu Jan 1 00:00:00 1970 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 79C4328B50B; Tue, 22 Jul 2025 06:28:02 +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=1753165682; cv=none; b=OJkVM3aUxVp/US4FU7v2mgcMglXFPfH6dTu/tY1+/EuBlwlhpTuqj24557frHviVkUWD3d3tm2k0Obym8FPLfrOiTYOy1f05onDTSnW0OJXHqlTMOxT7EZojBPZoOUM4lJv+B2NO1uS98/ipGRVPOBpx/M2KOroHnCOlgvEx49k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753165682; c=relaxed/simple; bh=pJZ8mhS5LDJbKuAjpcYWd1QM10ESPDFde8uZW8OLd90=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ANOozpFWeeAM8A1QIpTUZTsitbT6R7Od7yON3avXGn7CtXTpqr/hoqCEAS6GWF6ZVd4M2yF23WX2fzhjCOiN5N1sNzKCcwS2LuoYBoBSNufg9FslGUUqqCgYTyfyqQAoMOYzCXTGSxFDaNmLdtDxZ7T6guS77qYqo0yOI145F9c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=l3yhXiBP; 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="l3yhXiBP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B532C4CEEB; Tue, 22 Jul 2025 06:28:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753165682; bh=pJZ8mhS5LDJbKuAjpcYWd1QM10ESPDFde8uZW8OLd90=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=l3yhXiBPVEf315vdyJEOMAP3o7xujPgnL9BivoCYfTKWYDKT5AzaPrI+K/G15S9Ck rUtLcYBzWx88LmS/QHppHCBojbbTWzcN+23Q3Xo6c0olL1S+n+Jcq+3tQnAYKQb2NZ VT/yxfGZPwDO5X6tlCr0Cwz1Nukb32uMLtXZEukKEEE1pDr/b5pyUGcJ7OQJkYMzqc tQGKbSOkVTI/hwjk6eiEPV11qOeQptDSYOyXHb7z2R8M1/ZhZeEigDcSZXEMeaoHU8 DbmnIQD6f9mqTTePOfnY2JTRwAV5PqFKeEK2OA5ZqbqJ71+7MHSVNP3AUR3nHrDhw4 bXy3HMh7RNtgQ== Date: Tue, 22 Jul 2025 08:27:59 +0200 From: Krzysztof Kozlowski To: Praveen Talari Cc: Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, dmitry.baryshkov@oss.qualcomm.com, bryan.odonoghue@linaro.org, psodagud@quicinc.com, djaggi@quicinc.com, quic_msavaliy@quicinc.com, quic_vtanuku@quicinc.com, quic_arandive@quicinc.com, quic_cchiluve@quicinc.com, quic_shazhuss@quicinc.com Subject: Re: [PATCH v7 0/8] Enable QUPs and Serial on SA8255p Qualcomm platforms Message-ID: <20250722-curious-attentive-moth-e3d52c@kuoka> References: <20250721174532.14022-1-quic_ptalari@quicinc.com> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250721174532.14022-1-quic_ptalari@quicinc.com> On Mon, Jul 21, 2025 at 11:15:24PM +0530, Praveen Talari wrote: > The Qualcomm automotive SA8255p SoC relies on firmware to configure > platform resources, including clocks, interconnects and TLMM. The device > drivers request resources operations over SCMI using power and > performance protocols. > > The SCMI power protocol enables or disables resources like clocks, > interconnect paths, and TLMM (GPIOs) using runtime PM framework APIs, > such as resume/suspend, to control power states(on/off). > > The SCMI performance protocol manages UART baud rates, with each baud > rate represented by a performance level. Drivers use the > dev_pm_opp_set_level() API to request the desired baud rate by > specifying the performance level. > > The QUP drivers are SCMI clients, with clocks, interconnects, pinctrl > and power-domains abstracted by a SCMI server. > > The serial driver has a dependency on the dev_pm_opp_set_level() function, > which is applied in the OPP tree's linux-next branch. Where is the changelog with lore links? Best regards, Krzysztof