[PATCH 1/6] tty/sysrq: Remove linux,sysrq-reset-seq

From: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
To: linux-input@vger.kernel.org, devicetree@vger.kernel.org
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>,
	andrzej.p@collabora.com, kernel@collabora.com
Subject: [PATCH 1/6] tty/sysrq: Remove linux,sysrq-reset-seq
Date: Mon, 11 May 2020 15:59:13 +0200	[thread overview]
Message-ID: <20200511135918.8203-2-andrzej.p@collabora.com> (raw)
In-Reply-To: <20200511135918.8203-1-andrzej.p@collabora.com>

Nobody in the tree uses linux,sysrq-reset-seq in Device Tree source files.
Remove the corresponding code.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
---
 drivers/tty/sysrq.c | 37 -------------------------------------
 1 file changed, 37 deletions(-)

diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 0dc3878794fd..93202fc24308 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -720,41 +720,6 @@ static void sysrq_detect_reset_sequence(struct sysrq_state *state,
 	}
 }
 
-#ifdef CONFIG_OF
-static void sysrq_of_get_keyreset_config(void)
-{
-	u32 key;
-	struct device_node *np;
-	struct property *prop;
-	const __be32 *p;
-
-	np = of_find_node_by_path("/chosen/linux,sysrq-reset-seq");
-	if (!np) {
-		pr_debug("No sysrq node found");
-		return;
-	}
-
-	/* Reset in case a __weak definition was present */
-	sysrq_reset_seq_len = 0;
-
-	of_property_for_each_u32(np, "keyset", prop, p, key) {
-		if (key == KEY_RESERVED || key > KEY_MAX ||
-		    sysrq_reset_seq_len == SYSRQ_KEY_RESET_MAX)
-			break;
-
-		sysrq_reset_seq[sysrq_reset_seq_len++] = (unsigned short)key;
-	}
-
-	/* Get reset timeout if any. */
-	of_property_read_u32(np, "timeout-ms", &sysrq_reset_downtime_ms);
-
-	of_node_put(np);
-}
-#else
-static void sysrq_of_get_keyreset_config(void)
-{
-}
-#endif
 
 static void sysrq_reinject_alt_sysrq(struct work_struct *work)
 {
@@ -984,8 +949,6 @@ static inline void sysrq_register_handler(void)
 {
 	int error;
 
-	sysrq_of_get_keyreset_config();
-
 	error = input_register_handler(&sysrq_handler);
 	if (error)
 		pr_err("Failed to register input handler, error %d", error);
-- 
2.17.1

