From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: linux-i2c@vger.kernel.org
Cc: Wolfram Sang <wsa@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Jarkko Nikula <jarkko.nikula@linux.intel.com>
Subject: [PATCH 3/6] i2c: designware-pci: Add a note about struct dw_scl_sda_cfg usage
Date: Wed, 15 Dec 2021 17:12:02 +0200 [thread overview]
Message-ID: <20211215151205.584264-3-jarkko.nikula@linux.intel.com> (raw)
In-Reply-To: <20211215151205.584264-1-jarkko.nikula@linux.intel.com>
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Add a note about struct dw_scl_sda_cfg usage to discourage people
of using this structure on new platforms. Instead they should try
hard to put the needed information into firmware descriptions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
---
drivers/i2c/busses/i2c-designware-pcidrv.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 5b45941bcbdd..f49c41ba5647 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -38,6 +38,13 @@ enum dw_pci_ctl_id_t {
navi_amd,
};
+/*
+ * This is a legacy structure to describe the hardware counters
+ * to configure signal timings on the bus. For Device Tree platforms
+ * one should use the respective properties and for ACPI there is
+ * a set of ACPI methods that provide these counters. No new
+ * platform should use this structure.
+ */
struct dw_scl_sda_cfg {
u16 ss_hcnt;
u16 fs_hcnt;
--
2.34.1
next prev parent reply other threads:[~2021-12-15 15:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-15 15:12 [PATCH 1/6] i2c: designware: Do not complete i2c read without RX_FULL interrupt Jarkko Nikula
2021-12-15 15:12 ` [PATCH 2/6] i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters Jarkko Nikula
2021-12-16 21:17 ` Wolfram Sang
2021-12-15 15:12 ` Jarkko Nikula [this message]
2021-12-16 21:17 ` [PATCH 3/6] i2c: designware-pci: Add a note about struct dw_scl_sda_cfg usage Wolfram Sang
2021-12-15 15:12 ` [PATCH 4/6] i2c: designware-pci: Group MODULE_*() macros Jarkko Nikula
2021-12-16 21:18 ` Wolfram Sang
2021-12-17 11:30 ` Andy Shevchenko
2021-12-15 15:12 ` [PATCH 5/6] i2c: designware-pci: use __maybe_unused for PM functions Jarkko Nikula
2021-12-16 21:18 ` Wolfram Sang
2021-12-15 15:12 ` [PATCH 6/6] i2c: designware-pci: Convert to use dev_err_probe() Jarkko Nikula
2021-12-16 21:18 ` Wolfram Sang
2021-12-16 21:17 ` [PATCH 1/6] i2c: designware: Do not complete i2c read without RX_FULL interrupt Wolfram Sang
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