From: Lee Jones <lee.jones@linaro.org>
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
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org,
linux-usb@vger.kernel.or, Lee Jones <lee.jones@linaro.org>
Subject: [PATCH v4 1/6] i2c: i2c-qcom-geni: Provide support for ACPI
Date: Wed, 12 Jun 2019 15:26:49 +0100 [thread overview]
Message-ID: <20190612142654.9639-2-lee.jones@linaro.org> (raw)
In-Reply-To: <20190612142654.9639-1-lee.jones@linaro.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 <lee.jones@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
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 <linux/acpi.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
@@ -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
next prev parent reply other threads:[~2019-06-12 14:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 14:26 [PATCH v4 0/6] I2C: DWC3 USB: Add support for ACPI based AArch64 Laptops Lee Jones
2019-06-12 14:26 ` Lee Jones [this message]
2019-06-14 21:17 ` [PATCH v4 1/6] i2c: i2c-qcom-geni: Provide support for ACPI Wolfram Sang
2019-06-12 14:26 ` [PATCH v4 2/6] i2c: i2c-qcom-geni: Signify successful driver probe Lee Jones
2019-06-14 21:17 ` Wolfram Sang
2019-06-12 14:26 ` [PATCH v4 3/6] soc: qcom: geni: Add support for ACPI Lee Jones
2019-06-17 10:14 ` Lee Jones
2019-06-19 5:43 ` Bjorn Andersson
2019-06-12 14:26 ` [PATCH v4 4/6] usb: dwc3: qcom: Add support for booting with ACPI Lee Jones
2019-06-17 10:21 ` Lee Jones
2019-06-17 12:32 ` Felipe Balbi
2019-06-17 12:43 ` Lee Jones
2019-06-17 12:45 ` Felipe Balbi
2019-06-12 14:26 ` [PATCH v4 5/6] usb: dwc3: qcom: Start USB in 'host mode' on the SDM845 Lee Jones
2019-06-12 14:26 ` [PATCH v4 6/6] usb: dwc3: qcom: Improve error handling Lee Jones
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