From: Huacai Chen <chenhuacai@loongson.cn>
To: Arnd Bergmann <arnd@arndb.de>,
Huacai Chen <chenhuacai@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: loongarch@lists.linux.dev, linux-arch@vger.kernel.org,
Xuefeng Li <lixuefeng@loongson.cn>, Guo Ren <guoren@kernel.org>,
Xuerui Wang <kernel@xen0n.name>,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
Huacai Chen <chenhuacai@loongson.cn>
Subject: [PATCH 2/2] Input: i8042: Add LoongArch support in i8042-acpipnpio.h
Date: Sat, 17 Sep 2022 14:40:20 +0800 [thread overview]
Message-ID: <20220917064020.1639709-2-chenhuacai@loongson.cn> (raw)
In-Reply-To: <20220917064020.1639709-1-chenhuacai@loongson.cn>
LoongArch uses ACPI and nearly the same as X86/IA64 for 8042. So modify
i8042-acpipnpio.h slightly and enable it for LoongArch in i8042.h. Then
i8042 driver can work well under the ACPI firmware with PNP typed key-
board and mouse configured in DSDT.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---
drivers/input/serio/i8042-acpipnpio.h | 8 ++++++--
drivers/input/serio/i8042.h | 2 +-
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index d14b9fb59d6c..c22151f180bb 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -2,6 +2,7 @@
#ifndef _I8042_ACPIPNPIO_H
#define _I8042_ACPIPNPIO_H
+#include <linux/acpi.h>
#ifdef CONFIG_X86
#include <asm/x86_init.h>
@@ -1449,16 +1450,19 @@ static int __init i8042_pnp_init(void)
if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
i8042_pnp_exit();
+ pr_info("PNP: No PS/2 controller found.\n");
#if defined(__ia64__)
return -ENODEV;
+#elif defined(__loongarch__)
+ if (acpi_disabled == 0)
+ return -ENODEV;
#else
- pr_info("PNP: No PS/2 controller found.\n");
if (x86_platform.legacy.i8042 !=
X86_LEGACY_I8042_EXPECTED_PRESENT)
return -ENODEV;
+#endif
pr_info("Probing ports directly.\n");
return 0;
-#endif
}
if (i8042_pnp_kbd_devices)
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index bf2592fa9a78..adb5173372d3 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -19,7 +19,7 @@
#include "i8042-snirm.h"
#elif defined(CONFIG_SPARC)
#include "i8042-sparcio.h"
-#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
+#elif defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
#include "i8042-acpipnpio.h"
#else
#include "i8042-io.h"
--
2.31.1
next prev parent reply other threads:[~2022-09-17 6:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-17 6:40 [PATCH 1/2] Input: i8042: Rename i8042-x86ia64io.h to i8042-acpipnpio.h Huacai Chen
2022-09-17 6:40 ` Huacai Chen [this message]
2022-09-22 8:32 ` [PATCH 2/2] Input: i8042: Add LoongArch support in i8042-acpipnpio.h Mattijs Korpershoek
2022-09-30 2:41 ` Huacai Chen
2022-10-01 22:05 ` Dmitry Torokhov
2022-09-22 8:04 ` [PATCH 1/2] Input: i8042: Rename i8042-x86ia64io.h to i8042-acpipnpio.h Mattijs Korpershoek
2022-10-01 22:11 ` Dmitry Torokhov
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