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Wed, 12 Jun 2019 07:26:58 -0700 (PDT) From: Lee Jones To: alokc@codeaurora.org, agross@kernel.org, david.brown@linaro.org, wsa+renesas@sang-engineering.com, bjorn.andersson@linaro.org, balbi@kernel.org, gregkh@linuxfoundation.org, ard.biesheuvel@linaro.org, jlhugo@gmail.com Subject: [PATCH v4 1/6] i2c: i2c-qcom-geni: Provide support for ACPI Date: Wed, 12 Jun 2019 15:26:49 +0100 Message-Id: <20190612142654.9639-2-lee.jones@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190612142654.9639-1-lee.jones@linaro.org> References: <20190612142654.9639-1-lee.jones@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190612_072701_692698_0211681E X-CRM114-Status: GOOD ( 12.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, Lee Jones , linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.or MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a match table to allow automatic probing of ACPI device QCOM0220. Ignore clock attainment errors. Set default clock frequency value. Signed-off-by: Lee Jones Acked-by: Ard Biesheuvel --- drivers/i2c/busses/i2c-qcom-geni.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index db075bc0d952..9e3b8a98688d 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. +#include #include #include #include @@ -483,6 +484,14 @@ static const struct i2c_algorithm geni_i2c_algo = { .functionality = geni_i2c_func, }; +#ifdef CONFIG_ACPI +static const struct acpi_device_id geni_i2c_acpi_match[] = { + { "QCOM0220"}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, geni_i2c_acpi_match); +#endif + static int geni_i2c_probe(struct platform_device *pdev) { struct geni_i2c_dev *gi2c; @@ -502,7 +511,7 @@ static int geni_i2c_probe(struct platform_device *pdev) return PTR_ERR(gi2c->se.base); gi2c->se.clk = devm_clk_get(&pdev->dev, "se"); - if (IS_ERR(gi2c->se.clk)) { + if (IS_ERR(gi2c->se.clk) && !has_acpi_companion(&pdev->dev)) { ret = PTR_ERR(gi2c->se.clk); dev_err(&pdev->dev, "Err getting SE Core clk %d\n", ret); return ret; @@ -516,6 +525,9 @@ static int geni_i2c_probe(struct platform_device *pdev) gi2c->clk_freq_out = KHZ(100); } + if (has_acpi_companion(&pdev->dev)) + ACPI_COMPANION_SET(&gi2c->adap.dev, ACPI_COMPANION(&pdev->dev)); + gi2c->irq = platform_get_irq(pdev, 0); if (gi2c->irq < 0) { dev_err(&pdev->dev, "IRQ error for i2c-geni\n"); @@ -660,6 +672,7 @@ static struct platform_driver geni_i2c_driver = { .name = "geni_i2c", .pm = &geni_i2c_pm_ops, .of_match_table = geni_i2c_dt_match, + .acpi_match_table = ACPI_PTR(geni_i2c_acpi_match), }, }; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel