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[83.9.29.26]) by smtp.gmail.com with ESMTPSA id ep7-20020a056512484700b004fbb1f70ceesm833417lfb.227.2023.07.03.06.31.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Jul 2023 06:31:19 -0700 (PDT) From: Konrad Dybcio Date: Mon, 03 Jul 2023 15:31:13 +0200 Subject: [PATCH 4/5] soc: qcom: geni-se: Allow any combination of icc paths MIME-Version: 1.0 Message-Id: <20230703-topic-8250_qup_icc-v1-4-fea39aa07525@linaro.org> References: <20230703-topic-8250_qup_icc-v1-0-fea39aa07525@linaro.org> In-Reply-To: <20230703-topic-8250_qup_icc-v1-0-fea39aa07525@linaro.org> To: Andy Gross , Bjorn Andersson , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Andi Shyti Cc: Marijn Suijten , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-i2c@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1688391072; l=1230; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=co9BdW2nWkUZOcUTizkeFw8YjDRYAbLHFxUe7vw2Hi8=; b=Ujk0LJDy05oagsVI8a6ZmnNEpYOuoJq5uyL6lqwIgDGgLZ20MpLNP89MZUyPsBsmv07eQPoRN Ej8VC4qyRHWCZhU8eSpTrxsn3vV2PM+Q5TalSz6YgYzA2YdP3bIRV8v X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Not all SoCs provide all the usual paths. By the looks of it, at least SM8150 and SM8250 don't have one that would resemble "qup-core". Check for the error that icc_get throws and assign a NULL value to each path that can't be found to effectively allow any combination of icc paths (which, like previously, includes no icc paths). The ICC APIs gracefully handle a NULL path by exiting early. Signed-off-by: Konrad Dybcio --- drivers/soc/qcom/qcom-geni-se.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index ba788762835f..a5e2e8925c8e 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -813,8 +813,13 @@ int geni_icc_get(struct geni_se *se, const char *icc_ddr) continue; se->icc_paths[i].path = devm_of_icc_get(se->dev, icc_names[i]); - if (IS_ERR(se->icc_paths[i].path)) - goto err; + if (IS_ERR(se->icc_paths[i].path)) { + /* Not all SoCs implement all the paths */ + if (PTR_ERR(se->icc_paths[i].path) == -ENODATA) + se->icc_paths[i].path = NULL; + else + goto err; + } } return 0;