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R. Silva" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-hardening@vger.kernel.org, devicetree@vger.kernel.org, Krzysztof Kozlowski References: <20260710-camss-isp-ope-v4-0-51207a0319d8@oss.qualcomm.com> <20260710-camss-isp-ope-v4-4-51207a0319d8@oss.qualcomm.com> From: Bryan O'Donoghue Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 10/07/2026 11:38, Loic Poulain wrote: > On Fri, Jul 10, 2026 at 12:20 PM Bryan O'Donoghue > wrote: >> On 10/07/2026 10:04, Loic Poulain wrote: >>> + reg = <0x5c42400 0x200>, >>> + <0x5c42600 0x200>, >>> + <0x5c42800 0x4400>, >>> + <0x5c46c00 0x190>, >>> + <0x5c46d90 0xa00>; >>> + reg-names = "top", "qos", "pipeline", >>> + "bus_read", "bus_write"; >>> + >> Does this register space cover the entire OPE i.e. where are the CDM >> registers ? >> >> We should map those upfront even if they are not included in your first >> drop, we map CDM regs in the IFE even when not used. > My initial thought, especially when we first moved to the CAMSS > subnode model, was that CDM would be represented as a separate node > and referenced from OPE through a phandle. However, CDM may not be > generic enough to justify that level of abstraction/complexity. > Therefore, I'll reintroduce the CDM resources here instead. > > Thanks, > Loic There's no harm in mapping the CDM regs here. Worst case is we have a generic CDM driver and the regs appear here unused as well as in a CDM node right before OPE. Not the end of the world. --- bod