From: oujiefeng <oujiefeng@huawei.com>
Date: Wed, 17 Nov 2021 01:21:19 +0000 (+0800)
Subject: spi: hisi-kunpeng: Fix the debugfs directory name incorrect
X-Git-Tag: accepted/tizen/unified/20230118.172025~3582
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d46f937233b15422cbb8ab1d53a3278d58965ad8;p=platform%2Fkernel%2Flinux-rpi.git

spi: hisi-kunpeng: Fix the debugfs directory name incorrect

[ Upstream commit 40fafc8eca3f0d41b9dade5c10afb2dad723aad7 ]

Change the debugfs directory name from hisi_spi65535 to hisi_spi0.

Fixes: 2b2142f247eb ("spi: hisi-kunpeng: Add debugfs support")
Signed-off-by: oujiefeng <oujiefeng@huawei.com>
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Link: https://lore.kernel.org/r/20211117012119.55558-1-f.fangjian@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/spi/spi-hisi-kunpeng.c b/drivers/spi/spi-hisi-kunpeng.c
index 58b823a..525cc01 100644
--- a/drivers/spi/spi-hisi-kunpeng.c
+++ b/drivers/spi/spi-hisi-kunpeng.c
@@ -127,7 +127,6 @@ struct hisi_spi {
 	void __iomem		*regs;
 	int			irq;
 	u32			fifo_len; /* depth of the FIFO buffer */
-	u16			bus_num;
 
 	/* Current message transfer state info */
 	const void		*tx;
@@ -165,7 +164,10 @@ static int hisi_spi_debugfs_init(struct hisi_spi *hs)
 {
 	char name[32];
 
-	snprintf(name, 32, "hisi_spi%d", hs->bus_num);
+	struct spi_controller *master;
+
+	master = container_of(hs->dev, struct spi_controller, dev);
+	snprintf(name, 32, "hisi_spi%d", master->bus_num);
 	hs->debugfs = debugfs_create_dir(name, NULL);
 	if (!hs->debugfs)
 		return -ENOMEM;
@@ -467,7 +469,6 @@ static int hisi_spi_probe(struct platform_device *pdev)
 	hs = spi_controller_get_devdata(master);
 	hs->dev = dev;
 	hs->irq = irq;
-	hs->bus_num = pdev->id;
 
 	hs->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hs->regs))
@@ -490,7 +491,7 @@ static int hisi_spi_probe(struct platform_device *pdev)
 	master->use_gpio_descriptors = true;
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP;
 	master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
-	master->bus_num = hs->bus_num;
+	master->bus_num = pdev->id;
 	master->setup = hisi_spi_setup;
 	master->cleanup = hisi_spi_cleanup;
 	master->transfer_one = hisi_spi_transfer_one;
@@ -506,15 +507,15 @@ static int hisi_spi_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	if (hisi_spi_debugfs_init(hs))
-		dev_info(dev, "failed to create debugfs dir\n");
-
 	ret = spi_register_controller(master);
 	if (ret) {
 		dev_err(dev, "failed to register spi master, ret=%d\n", ret);
 		return ret;
 	}
 
+	if (hisi_spi_debugfs_init(hs))
+		dev_info(dev, "failed to create debugfs dir\n");
+
 	dev_info(dev, "hw version:0x%x max-freq:%u kHz\n",
 		readl(hs->regs + HISI_SPI_VERSION),
 		master->max_speed_hz / 1000);