linux-kernel - [PATCH v1] uio: dfl: add IOPLL user-clock feature id

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Message-Id: <20220817213746.4986-1-peter.colberg@intel.com>
Date:   Wed, 17 Aug 2022 17:37:46 -0400
From:   Peter Colberg <peter.colberg@...el.com>
To:     Wu Hao <hao.wu@...el.com>, Tom Rix <trix@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-fpga@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     russell.h.weight@...el.com, matthew.gerlach@...ux.intel.com,
        basheer.ahmed.muddebihal@...el.com, tianfei.zhang@...el.com,
        marpagan@...hat.com, lgoncalv@...hat.com,
        Peter Colberg <peter.colberg@...el.com>
Subject: [PATCH v1] uio: dfl: add IOPLL user-clock feature id

Add a Device Feature List (DFL) feature id for the configurable
IOPLL user clock source, which can be used to configure the clock
speeds that are used for RTL logic that is programmed into the
Partial Reconfiguration (PR) region of an FPGA.

The DFL feature id table can be found at:
https://github.com/OPAE/dfl-feature-id

Signed-off-by: Peter Colberg <peter.colberg@...el.com>
---
 drivers/uio/uio_dfl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/uio/uio_dfl.c b/drivers/uio/uio_dfl.c
index 8f39cc8bb034..69e93f3e7faf 100644
--- a/drivers/uio/uio_dfl.c
+++ b/drivers/uio/uio_dfl.c
@@ -46,10 +46,12 @@ static int uio_dfl_probe(struct dfl_device *ddev)
 
 #define FME_FEATURE_ID_ETH_GROUP	0x10
 #define FME_FEATURE_ID_HSSI_SUBSYS	0x15
+#define PORT_FEATURE_ID_IOPLL_USRCLK	0x14
 
 static const struct dfl_device_id uio_dfl_ids[] = {
 	{ FME_ID, FME_FEATURE_ID_ETH_GROUP },
 	{ FME_ID, FME_FEATURE_ID_HSSI_SUBSYS },
+	{ PORT_ID, PORT_FEATURE_ID_IOPLL_USRCLK },
 	{ }
 };
 MODULE_DEVICE_TABLE(dfl, uio_dfl_ids);
-- 
2.28.0