linux-kernel - [PATCH 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-v1-4-64449106a148@linaro.org>
Date:   Wed, 16 Nov 2022 11:21:51 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH 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.

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

Signed-off-by: Neil Armstrong <neil.armstrong@...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 f4f54d92a01a..8430a0192bb9 100644
--- a/drivers/soc/qcom/qcom-geni-se.c
+++ b/drivers/soc/qcom/qcom-geni-se.c
@@ -930,8 +930,18 @@ 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