From: Hans de Goede <hdegoede@redhat.com>
To: "Rafael J . Wysocki" <rjw@rjwysocki.net>,
Mark Gross <markgross@kernel.org>,
Andy Shevchenko <andy@infradead.org>,
Wolfram Sang <wsa@the-dreams.de>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Daniel Scally <djrscally@gmail.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>, Len Brown <lenb@kernel.org>,
linux-acpi@vger.kernel.org, platform-driver-x86@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Kate Hsuan <hpa@redhat.com>,
linux-media@vger.kernel.org, linux-clk@vger.kernel.org
Subject: [PATCH v4 06/11] platform/x86: int3472: Enable I2c daisy chain
Date: Mon, 25 Oct 2021 11:41:14 +0200 [thread overview]
Message-ID: <20211025094119.82967-7-hdegoede@redhat.com> (raw)
In-Reply-To: <20211025094119.82967-1-hdegoede@redhat.com>
From: Daniel Scally <djrscally@gmail.com>
The TPS68470 PMIC has an I2C passthrough mode through which I2C traffic
can be forwarded to a device connected to the PMIC as though it were
connected directly to the system bus. Enable this mode when the chip
is initialised.
Signed-off-by: Daniel Scally <djrscally@gmail.com>
---
.../x86/intel/int3472/intel_skl_int3472_tps68470.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/platform/x86/intel/int3472/intel_skl_int3472_tps68470.c b/drivers/platform/x86/intel/int3472/intel_skl_int3472_tps68470.c
index c05b4cf502fe..42e688f4cad4 100644
--- a/drivers/platform/x86/intel/int3472/intel_skl_int3472_tps68470.c
+++ b/drivers/platform/x86/intel/int3472/intel_skl_int3472_tps68470.c
@@ -45,6 +45,13 @@ static int tps68470_chip_init(struct device *dev, struct regmap *regmap)
return ret;
}
+ /* Enable I2C daisy chain */
+ ret = regmap_write(regmap, TPS68470_REG_S_I2C_CTL, 0x03);
+ if (ret) {
+ dev_err(dev, "Failed to enable i2c daisy chain\n");
+ return ret;
+ }
+
dev_info(dev, "TPS68470 REVID: 0x%02x\n", version);
return 0;
--
2.31.1
next prev parent reply other threads:[~2021-10-25 9:42 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 9:41 [PATCH v4 00/11] Add support for X86/ACPI camera sensor/PMIC setup with clk and regulator platform data Hans de Goede
2021-10-25 9:41 ` [PATCH v4 01/11] ACPI: delay enumeration of devices with a _DEP pointing to an INT3472 device Hans de Goede
2021-10-27 18:52 ` Rafael J. Wysocki
2021-11-01 11:16 ` Hans de Goede
2021-10-25 9:41 ` [PATCH v4 02/11] i2c: acpi: Use acpi_dev_ready_for_enumeration() helper Hans de Goede
2021-10-27 18:53 ` Rafael J. Wysocki
2021-10-25 9:41 ` [PATCH v4 03/11] platform_data: Add linux/platform_data/tps68470.h file Hans de Goede
2021-10-25 9:41 ` [PATCH v4 04/11] regulator: Introduce tps68470-regulator driver Hans de Goede
2021-10-25 11:11 ` Andy Shevchenko
2021-11-01 10:20 ` Hans de Goede
2021-10-28 16:23 ` Mark Brown
2021-11-09 12:14 ` Sakari Ailus
2021-11-09 12:29 ` Andy Shevchenko
2021-11-11 15:13 ` Hans de Goede
2021-10-25 9:41 ` [PATCH v4 05/11] clk: Introduce clk-tps68470 driver Hans de Goede
2021-10-25 11:24 ` Andy Shevchenko
2021-11-01 10:27 ` Hans de Goede
2021-11-01 10:42 ` Andy Shevchenko
2021-11-01 11:00 ` Hans de Goede
2021-11-01 11:11 ` Andy Shevchenko
2021-10-25 9:41 ` Hans de Goede [this message]
2021-10-25 9:41 ` [PATCH v4 07/11] platform/x86: int3472: Split into 2 drivers Hans de Goede
2021-10-25 9:41 ` [PATCH v4 08/11] platform/x86: int3472: Add get_sensor_adev_and_name() helper Hans de Goede
2021-10-25 11:31 ` Andy Shevchenko
2021-11-01 10:31 ` Hans de Goede
2021-11-01 10:44 ` Andy Shevchenko
2021-11-01 10:46 ` Andy Shevchenko
2021-11-01 10:49 ` Hans de Goede
2021-11-01 10:51 ` Andy Shevchenko
2021-11-01 10:48 ` Hans de Goede
2021-10-25 9:41 ` [PATCH v4 09/11] platform/x86: int3472: Pass tps68470_clk_platform_data to the tps68470-regulator MFD-cell Hans de Goede
2021-10-25 11:33 ` Andy Shevchenko
2021-10-25 9:41 ` [PATCH v4 10/11] platform/x86: int3472: Pass tps68470_regulator_platform_data " Hans de Goede
2021-10-25 11:38 ` Andy Shevchenko
2021-11-01 11:31 ` Hans de Goede
2021-11-01 14:25 ` Andy Shevchenko
2021-10-25 9:41 ` [PATCH v4 11/11] platform/x86: int3472: Deal with probe ordering issues Hans de Goede
2021-10-25 11:40 ` Andy Shevchenko
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