linux-kernel - [PATCH 11/11] spi: dw: initialize dwc-ssi-1.03a controller

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Message-Id: <20220802175755.6530-12-sudip.mukherjee@sifive.com>
Date:   Tue,  2 Aug 2022 18:57:55 +0100
From:   Sudip Mukherjee <sudip.mukherjee@...ive.com>
To:     Serge Semin <fancer.lancer@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     greentime.hu@...ive.com, jude.onyenegecha@...ive.com,
        william.salmon@...ive.com, adnan.chowdhury@...ive.com,
        ben.dooks@...ive.com, linux-spi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        jeegar.lakhani@...ive.com,
        Sudip Mukherjee <sudip.mukherjee@...ive.com>
Subject: [PATCH 11/11] spi: dw: initialize dwc-ssi-1.03a controller

Define the initialization of dwc-ssi-1.03a controller and mark it with
the capability of enhanced SPI supporting dual/quad/octal modes of
transfer.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ive.com>
---
 drivers/spi/spi-dw-mmio.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index 26c40ea6dd12..db80e0645172 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -237,6 +237,15 @@ static int dw_spi_canaan_k210_init(struct platform_device *pdev,
 	return 0;
 }
 
+static int dw_spi_hssi_ext_init(struct platform_device *pdev,
+				struct dw_spi_mmio *dwsmmio)
+{
+	dwsmmio->dws.ip = DW_HSSI_ID;
+	dwsmmio->dws.caps = DW_SPI_CAP_EXT_SPI;
+
+	return 0;
+}
+
 static int dw_spi_mmio_probe(struct platform_device *pdev)
 {
 	int (*init_func)(struct platform_device *pdev,
@@ -352,6 +361,7 @@ static const struct of_device_id dw_spi_mmio_of_match[] = {
 	{ .compatible = "intel,thunderbay-ssi", .data = dw_spi_intel_init},
 	{ .compatible = "microchip,sparx5-spi", dw_spi_mscc_sparx5_init},
 	{ .compatible = "canaan,k210-spi", dw_spi_canaan_k210_init},
+	{ .compatible = "snps,dwc-ssi-1.03a", dw_spi_hssi_ext_init},
 	{ /* end of table */}
 };
 MODULE_DEVICE_TABLE(of, dw_spi_mmio_of_match);
-- 
2.30.2