linux-kernel - [PATCH v3 4/6] soc: qcom: geni-se: add support for I2C Master Hub wrapper variant

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Message-Id: <20221114-narmstrong-sm8550-upstream-i2c-master-hub-v3-4-f6a20dc9996e@linaro.org>
Date:   Tue, 29 Nov 2022 15:47:04 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v3 4/6] soc: qcom: geni-se: add support for I2C Master Hub wrapper
 variant

The I2C Master Hub is a stripped down version of the GENI Serial Engine
QUP Wrapper Controller but only supporting I2C serial engines without
DMA support.

Add the clock list for the I2C Master Hub variant to a new desc struct
then pass it through the I2C Master Hub compatible match data.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/soc/qcom/qcom-geni-se.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c
index 9ddee9fd11ba..f0475b93ca73 100644
--- a/drivers/soc/qcom/qcom-geni-se.c
+++ b/drivers/soc/qcom/qcom-geni-se.c
@@ -942,8 +942,18 @@ static const struct geni_se_desc qup_desc = {
 	.num_clks = ARRAY_SIZE(qup_clks),
 };
 
+static const char * const i2c_master_hub_clks[] = {
+	"s-ahb",
+};
+
+static const struct geni_se_desc i2c_master_hub_desc = {
+	.clks = i2c_master_hub_clks,
+	.num_clks = ARRAY_SIZE(i2c_master_hub_clks),
+};
+
 static const struct of_device_id geni_se_dt_match[] = {
 	{ .compatible = "qcom,geni-se-qup", .data = &qup_desc },
+	{ .compatible = "qcom,geni-se-i2c-master-hub", .data = &i2c_master_hub_desc },
 	{}
 };
 MODULE_DEVICE_TABLE(of, geni_se_dt_match);

-- 
b4 0.10.1