From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Jarkko Nikula <jarkko.nikula@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
linux-i2c@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 4/4] i2c: designware: Read counters from ACPI for PCI driver
Date: Thu, 7 May 2020 16:51:40 +0300 [thread overview]
Message-ID: <20200507135140.14635-4-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20200507135140.14635-1-andriy.shevchenko@linux.intel.com>
PCI devices may have been backed with ACPI handle which supplies
an additional information to the drivers, such as counters.
Call for ACPI configuration from PCI driver in order to utilize counters
provided by ACPI.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/i2c/busses/i2c-designware-pcidrv.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index c762e5a11e44e..96191925f71ec 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -251,6 +251,15 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
}
}
+ if (has_acpi_companion(&pdev->dev))
+ i2c_dw_acpi_configure(&pdev->dev);
+
+ r = i2c_dw_validate_speed(dev);
+ if (r) {
+ pci_free_irq_vectors(pdev);
+ return r;
+ }
+
i2c_dw_configure(dev);
if (controller->scl_sda_cfg) {
--
2.26.2
next prev parent reply other threads:[~2020-05-07 13:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-07 13:51 [PATCH v1 1/4] i2c: designware: Split out i2c_dw_validate_speed() helper Andy Shevchenko
2020-05-07 13:51 ` [PATCH v1 2/4] i2c: designware: Split out OF parts into separate module Andy Shevchenko
2020-05-07 13:51 ` [PATCH v1 3/4] i2c: designware: Split out ACPI " Andy Shevchenko
2020-05-11 13:31 ` Jarkko Nikula
2020-05-11 14:05 ` Andy Shevchenko
2020-05-07 13:51 ` Andy Shevchenko [this message]
2020-05-11 13:11 ` [PATCH v1 1/4] i2c: designware: Split out i2c_dw_validate_speed() helper Jarkko Nikula
2020-05-11 13:42 ` Andy Shevchenko
2020-05-12 15:12 ` Jarkko Nikula
2020-05-19 12:33 ` Andy Shevchenko
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