openwrt/target/linux/generic/backport-4.19/826-v5.8-spi-rb4xx-update-driver-to-be-device-tree-aware.patch

From: Christopher Hill <ch6574@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: Christopher Hill <ch6574@gmail.com>, linux-spi@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] spi: rb4xx: update driver to be device tree aware
Date: Thu, 21 May 2020 14:36:30 -0400
Message-Id: <20200521183631.37806-2-ch6574@gmail.com>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20200521183631.37806-1-ch6574@gmail.com>
References: <20200521183631.37806-1-ch6574@gmail.com>
MIME-Version: 1.0
Sender: linux-spi-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-spi.vger.kernel.org>
X-Mailing-List: linux-spi@vger.kernel.org

This patch updates the spi driver spi-rb4xx.c to be device tree aware

Signed-off-by: Christopher Hill <ch6574@gmail.com>
---
 drivers/spi/spi-rb4xx.c | 9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/spi/spi-rb4xx.c
+++ b/drivers/spi/spi-rb4xx.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/spi/spi.h>
+#include <linux/of.h>
 
 #include <asm/mach-ath79/ar71xx_regs.h>
 
@@ -156,6 +157,7 @@ static int rb4xx_spi_probe(struct platfo
 	if (IS_ERR(ahb_clk))
 		return PTR_ERR(ahb_clk);
 
+	master->dev.of_node = pdev->dev.of_node;
 	master->bus_num = 0;
 	master->num_chipselect = 3;
 	master->mode_bits = SPI_TX_DUAL;
@@ -194,11 +196,18 @@ static int rb4xx_spi_remove(struct platf
 	return 0;
 }
 
+static const struct of_device_id rb4xx_spi_dt_match[] = {
+	{ .compatible = "mikrotik,rb4xx-spi" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rb4xx_spi_dt_match);
+
 static struct platform_driver rb4xx_spi_drv = {
 	.probe = rb4xx_spi_probe,
 	.remove = rb4xx_spi_remove,
 	.driver = {
 		.name = "rb4xx-spi",
+		.of_match_table = of_match_ptr(rb4xx_spi_dt_match),
 	},
 };