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[93.42.71.18]) by smtp.googlemail.com with ESMTPSA id bt12-20020a056000080c00b00236576c8eddsm957414wrb.12.2022.11.03.06.50.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Nov 2022 06:50:02 -0700 (PDT) From: Christian Marangi To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Michael Turquette , Stephen Boyd , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christian Marangi Subject: [PATCH v2 0/4] clk: qcom: clk-rcg2: introduce support for multiple conf for same freq Date: Thu, 3 Nov 2022 14:49:40 +0100 Message-Id: <20221103134944.23275-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org This small series fix a current problem with ipq8074 where the 2 uniphy port doesn't work in some corner case with some clk configuration. The port to correctly work require a specific frequency, using the wrong one results in the port not transmitting data. With the current code with a requested freq of 125MHz, the frequency is set to 105MHz. This is caused by the fact that there are 2 different configuration to set 125MHz and it's always selected the first one that results in 105MHz. In the original QSDK code, the frequency configuration selection is different and the CEIL FLOOR logic is not present. Instead it's used a BEST approach where the frequency table is checked and then it's checked if there are duplicate entry. This proposed implementation is more specific and keep the CEIL FLOOR logic while maitaining the possibility to provide multiple configuration. The first 2 patch drop redundant F entry redefinition. The 3rd one implement the change with also some macro description on how this new implementation works The 4th one migrate the gcc-ipq8074 driver to this new implementation. Changes v2: - Out of RFC - Fix compile warning from buildbot related to F redefinition Christian Marangi (4): clk: qcom: gcc-ipq6018: drop redundant F define clk: qcom: gcc-sdm660: drop redundant F define clk: qcom: clk-rcg2: introduce support for multiple conf for same freq clk: qcom: gcc-ipq8074: rework nss_port5/6 clock to multiple conf drivers/clk/qcom/clk-rcg.h | 14 +++++- drivers/clk/qcom/clk-rcg2.c | 84 ++++++++++++++++++++++++++++++---- drivers/clk/qcom/gcc-ipq6018.c | 2 - drivers/clk/qcom/gcc-ipq8074.c | 64 +++++++++++++++++++------- drivers/clk/qcom/gcc-sdm660.c | 2 - 5 files changed, 136 insertions(+), 30 deletions(-)