linux-kernel - [PATCH v1 1/3] gpio: tegra: Use debugfs_create_devm

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Date:   Fri, 22 Jan 2021 21:55:41 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-tegra@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/3] gpio: tegra: Use debugfs_create_devm_seqfile()

Use resource-managed variant of debugfs_create_file(0444) to prepare code
for the modularization of the driver.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/gpio/gpio-tegra.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 9a43129313fa..06f033375e40 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -605,7 +605,7 @@ static void tegra_gpio_irq_release_resources(struct irq_data *d)
 
 static int tegra_dbg_gpio_show(struct seq_file *s, void *unused)
 {
-	struct tegra_gpio_info *tgi = s->private;
+	struct tegra_gpio_info *tgi = dev_get_drvdata(s->private);
 	unsigned int i, j;
 
 	for (i = 0; i < tgi->bank_count; i++) {
@@ -627,12 +627,10 @@ static int tegra_dbg_gpio_show(struct seq_file *s, void *unused)
 	return 0;
 }
 
-DEFINE_SHOW_ATTRIBUTE(tegra_dbg_gpio);
-
 static void tegra_gpio_debuginit(struct tegra_gpio_info *tgi)
 {
-	debugfs_create_file("tegra_gpio", 0444, NULL, tgi,
-			    &tegra_dbg_gpio_fops);
+	debugfs_create_devm_seqfile(tgi->dev, "tegra_gpio", NULL,
+				    tegra_dbg_gpio_show);
 }
 
 #else
-- 
2.29.2