From: Helge Deller <deller@gmx.de>
Date: Sun, 27 Aug 2023 11:54:12 +0000 (+0200)
Subject: parisc: chassis: Do not overwrite string on LCD display
X-Git-Tag: block-6.6-2023-09-08~20^2~1
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e0701e7b9fb741d92b5f888cdf2caa0afdff7209;p=linux-2.6-block.git

parisc: chassis: Do not overwrite string on LCD display

If we send a chassis code via PDC, PDC usually overwrites the
contents on the LCD display. Just call lcd_print() in this case
so that the LCD/LED driver prints the last string again.

Signed-off-by: Helge Deller <deller@gmx.de>
---

diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index 0a9d7008ef2a..d477d0177c2f 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -31,6 +31,7 @@
 #include <asm/processor.h>
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
+#include <asm/led.h>
 
 #define PDC_CHASSIS_VER	"0.05"
 
@@ -234,6 +235,11 @@ int pdc_chassis_send_status(int message)
 		} else retval = -1;
 #endif /* CONFIG_64BIT */
 	}	/* if (pdc_chassis_enabled) */
+
+	/* if system has LCD display, update current string */
+	if (retval != -1 && IS_ENABLED(CONFIG_CHASSIS_LCD_LED))
+		lcd_print(NULL);
+
 #endif /* CONFIG_PDC_CHASSIS */
 	return retval;
 }