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From: "Martin Hundebøll" <martin@geanix.com>
To: Wu Hao <hao.wu@intel.com>, Tom Rix <trix@redhat.com>,
	Moritz Fischer <mdf@kernel.org>, Xu Yilun <yilun.xu@intel.com>,
	Jean Delvare <jdelvare@suse.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Mark Brown <broonie@kernel.org>
Cc: "Martin Hundebøll" <mhu@silicom.dk>,
	linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-hwmon@vger.kernel.org, linux-spi@vger.kernel.org
Subject: [PATCH v5 2/3] spi: spi-altera-dfl: support n5010 feature revision
Date: Fri, 16 Jul 2021 15:54:40 +0200	[thread overview]
Message-ID: <20210716135441.3235863-3-martin@geanix.com> (raw)
In-Reply-To: <20210716135441.3235863-1-martin@geanix.com>

From: Martin Hundebøll <mhu@silicom.dk>

The Max10 BMC on the Silicom n5010 PAC is slightly different than the
existing BMCs, so use a dedicated feature revision detect it.

Signed-off-by: Martin Hundebøll <mhu@silicom.dk>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
---

Changes since v4:
 * Moved spi board_info structure from global/static scope
   to function/stack scope

Changes since v3:
 * Changed "BMC's" to "BMCs"
 * Added Moritz' Reviewed-by

Changes since v2:
 * None

Changes since v1:
 * use feature revision from struct dfl_device instead of reading it
   from io-mem

 drivers/spi/spi-altera-dfl.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/spi/spi-altera-dfl.c b/drivers/spi/spi-altera-dfl.c
index 39a3e1a032e0..44fc9ee13fc7 100644
--- a/drivers/spi/spi-altera-dfl.c
+++ b/drivers/spi/spi-altera-dfl.c
@@ -104,13 +104,6 @@ static const struct regmap_config indirect_regbus_cfg = {
 	.reg_read = indirect_bus_reg_read,
 };
 
-static struct spi_board_info m10_bmc_info = {
-	.modalias = "m10-d5005",
-	.max_speed_hz = 12500000,
-	.bus_num = 0,
-	.chip_select = 0,
-};
-
 static void config_spi_master(void __iomem *base, struct spi_master *master)
 {
 	u64 v;
@@ -130,6 +123,7 @@ static void config_spi_master(void __iomem *base, struct spi_master *master)
 
 static int dfl_spi_altera_probe(struct dfl_device *dfl_dev)
 {
+	struct spi_board_info board_info = { 0 };
 	struct device *dev = &dfl_dev->dev;
 	struct spi_master *master;
 	struct altera_spi *hw;
@@ -170,9 +164,18 @@ static int dfl_spi_altera_probe(struct dfl_device *dfl_dev)
 		goto exit;
 	}
 
-	if (!spi_new_device(master,  &m10_bmc_info)) {
+	if (dfl_dev->revision == FME_FEATURE_REV_MAX10_SPI_N5010)
+		strscpy(board_info.modalias, "m10-n5010", SPI_NAME_SIZE);
+	else
+		strscpy(board_info.modalias, "m10-d5005", SPI_NAME_SIZE);
+
+	board_info.max_speed_hz = 12500000;
+	board_info.bus_num = 0;
+	board_info.chip_select = 0;
+
+	if (!spi_new_device(master, &board_info)) {
 		dev_err(dev, "%s failed to create SPI device: %s\n",
-			__func__, m10_bmc_info.modalias);
+			__func__, board_info.modalias);
 	}
 
 	return 0;
-- 
2.31.0


  parent reply	other threads:[~2021-07-16 13:55 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-16 13:54 [PATCH v5 0/3] fpga/spi/hwmon: Initial support for Silicom N5010 PAC Martin Hundebøll
2021-07-16 13:54 ` [PATCH v5 1/3] fpga: dfl: expose feature revision from struct dfl_device Martin Hundebøll
2021-07-16 20:46   ` Tom Rix
2021-07-29 20:04   ` Moritz Fischer
2021-07-16 13:54 ` Martin Hundebøll [this message]
2021-07-16 17:33   ` [PATCH v5 2/3] spi: spi-altera-dfl: support n5010 feature revision Mark Brown
2021-07-17 23:56     ` Moritz Fischer
2021-07-16 20:44   ` Tom Rix
2021-07-29 20:05     ` Moritz Fischer
2021-07-16 13:54 ` [PATCH v5 3/3] hwmon: intel-m10-bmc-hwmon: add n5010 sensors Martin Hundebøll
2021-07-17 14:02   ` Guenter Roeck

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