From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>,
Chris Chiu <chiu@endlessm.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Lee Jones <lee.jones@linaro.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.19 04/11] mfd: intel-lpss: Add default I2C device properties for Gemini Lake
Date: Thu, 23 Jan 2020 20:17:40 -0500 [thread overview]
Message-ID: <20200124011747.18575-4-sashal@kernel.org> (raw)
In-Reply-To: <20200124011747.18575-1-sashal@kernel.org>
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
[ Upstream commit 3f31bc67e4dc6a555341dffefe328ddd58e8b431 ]
It turned out Intel Gemini Lake doesn't use the same I2C timing
parameters as Broxton.
I got confirmation from the Windows team that Gemini Lake systems should
use updated timing parameters that differ from those used in Broxton
based systems.
Fixes: f80e78aa11ad ("mfd: intel-lpss: Add Intel Gemini Lake PCI IDs")
Tested-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/intel-lpss-pci.c | 28 ++++++++++++++++++++--------
1 file changed, 20 insertions(+), 8 deletions(-)
diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
index c37c8bb860685..742d6c1973f4f 100644
--- a/drivers/mfd/intel-lpss-pci.c
+++ b/drivers/mfd/intel-lpss-pci.c
@@ -126,6 +126,18 @@ static const struct intel_lpss_platform_info apl_i2c_info = {
.properties = apl_i2c_properties,
};
+static struct property_entry glk_i2c_properties[] = {
+ PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 313),
+ PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
+ PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 290),
+ { },
+};
+
+static const struct intel_lpss_platform_info glk_i2c_info = {
+ .clk_rate = 133000000,
+ .properties = glk_i2c_properties,
+};
+
static const struct intel_lpss_platform_info cnl_i2c_info = {
.clk_rate = 216000000,
.properties = spt_i2c_properties,
@@ -165,14 +177,14 @@ static const struct pci_device_id intel_lpss_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x1ac6), (kernel_ulong_t)&bxt_info },
{ PCI_VDEVICE(INTEL, 0x1aee), (kernel_ulong_t)&bxt_uart_info },
/* GLK */
- { PCI_VDEVICE(INTEL, 0x31ac), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31ae), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31b0), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31b2), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31b4), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31b6), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31b8), (kernel_ulong_t)&bxt_i2c_info },
- { PCI_VDEVICE(INTEL, 0x31ba), (kernel_ulong_t)&bxt_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31ac), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31ae), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31b0), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31b2), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31b4), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31b6), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31b8), (kernel_ulong_t)&glk_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x31ba), (kernel_ulong_t)&glk_i2c_info },
{ PCI_VDEVICE(INTEL, 0x31bc), (kernel_ulong_t)&bxt_uart_info },
{ PCI_VDEVICE(INTEL, 0x31be), (kernel_ulong_t)&bxt_uart_info },
{ PCI_VDEVICE(INTEL, 0x31c0), (kernel_ulong_t)&bxt_uart_info },
--
2.20.1
next prev parent reply other threads:[~2020-01-24 1:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-24 1:17 [PATCH AUTOSEL 4.19 01/11] platform/x86: dell-laptop: disable kbd backlight on Inspiron 10xx Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 02/11] PCI: Add DMA alias quirk for Intel VCA NTB Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 03/11] iommu/amd: Support multiple PCI DMA aliases in IRQ Remapping Sasha Levin
2020-01-24 1:17 ` Sasha Levin [this message]
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 05/11] ARM: config: aspeed-g5: Enable 8250_DW quirks Sasha Levin
2020-01-24 1:21 ` Joel Stanley
2020-01-24 20:29 ` Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 06/11] ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 07/11] usb-storage: Disable UAS on JMicron SATA enclosure Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 08/11] HID: Add quirk for Xin-Mo Dual Controller Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 09/11] HID: ite: Add USB id match for Acer SW5-012 keyboard dock Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 10/11] HID: Add quirk for incorrect input length on Lenovo Y720 Sasha Levin
2020-01-24 1:17 ` [PATCH AUTOSEL 4.19 11/11] drivers/hid/hid-multitouch.c: fix a possible null pointer access Sasha Levin
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