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authorChris Packham <chris.packham@alliedtelesis.co.nz>2024-05-31 01:20:54 +0200
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2024-06-04 09:29:36 +0200
commitc8ffef985af564c1b4fc09fdb5a5b336bfc0c33c (patch)
treed811d8de717a0446e0d43719e9fb5c30f6cebeaa /drivers/auxdisplay
parentauxdisplay: charlcd: Provide a forward declaration (diff)
downloadlinux-c8ffef985af564c1b4fc09fdb5a5b336bfc0c33c.tar.xz
linux-c8ffef985af564c1b4fc09fdb5a5b336bfc0c33c.zip
auxdisplay: linedisp: Support configuring the boot message
Like we do for charlcd, allow the configuration of the initial message on line-display devices. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/auxdisplay')
-rw-r--r--drivers/auxdisplay/Kconfig2
-rw-r--r--drivers/auxdisplay/line-display.c10
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index 69d2138d7efb..21545ffba065 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -316,7 +316,7 @@ endif # PARPORT_PANEL
config PANEL_CHANGE_MESSAGE
bool "Change LCD initialization message ?"
- depends on CHARLCD
+ depends on CHARLCD || LINEDISP
help
This allows you to replace the boot message indicating the kernel version
and the driver version with a custom message. This is useful on appliances
diff --git a/drivers/auxdisplay/line-display.c b/drivers/auxdisplay/line-display.c
index e2b546210f8d..978dc457ca5f 100644
--- a/drivers/auxdisplay/line-display.c
+++ b/drivers/auxdisplay/line-display.c
@@ -8,7 +8,9 @@
* Copyright (C) 2021 Glider bv
*/
+#ifndef CONFIG_PANEL_BOOT_MESSAGE
#include <generated/utsrelease.h>
+#endif
#include <linux/container_of.h>
#include <linux/device.h>
@@ -312,6 +314,12 @@ static int linedisp_init_map(struct linedisp *linedisp)
return 0;
}
+#ifdef CONFIG_PANEL_BOOT_MESSAGE
+#define LINEDISP_INIT_TEXT CONFIG_PANEL_BOOT_MESSAGE
+#else
+#define LINEDISP_INIT_TEXT "Linux " UTS_RELEASE " "
+#endif
+
/**
* linedisp_register - register a character line display
* @linedisp: pointer to character line display structure
@@ -359,7 +367,7 @@ int linedisp_register(struct linedisp *linedisp, struct device *parent,
goto out_del_timer;
/* display a default message */
- err = linedisp_display(linedisp, "Linux " UTS_RELEASE " ", -1);
+ err = linedisp_display(linedisp, LINEDISP_INIT_TEXT, -1);
if (err)
goto out_del_dev;