linux-kernel - [PATCH 2/6] video/logo: add a type parameter to the logo makefile function

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Message-Id: <20251230-custom-logo-v1-2-4736374569ee@kernel.org>
Date: Tue, 30 Dec 2025 23:20:01 +0100
From: Vincent Mailhol <mailhol@...nel.org>
To: Helge Deller <deller@....de>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Yoshinori Sato <ysato@...rs.sourceforge.jp>, Rich Felker <dalias@...c.org>, 
 John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc: linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 linux-kernel@...r.kernel.org, linux-sh@...r.kernel.org, 
 Vincent Mailhol <mailhol@...nel.org>
Subject: [PATCH 2/6] video/logo: add a type parameter to the logo makefile
 function

When translating a portable pixmap file into a .c file, the pnmtologo
tool expects to receive the image type (either mono, vga16 or clut224)
as an argument under the -t option.

Currently, this information is stored in the file name. Because we
will allow for custom logo in an upcoming change, it is preferable to
decouple the image name from its type.

Add a new $2 parameter to the Makefile logo function which contains
the image type.

Update all the individual targets to provide this new argument. Note
that this transitional: all those targets will be removed in an
upcoming clean-up change.

Signed-off-by: Vincent Mailhol <mailhol@...nel.org>
---
 drivers/video/logo/Makefile | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile
index 8b67c4941a4c..3f249e9dcf37 100644
--- a/drivers/video/logo/Makefile
+++ b/drivers/video/logo/Makefile
@@ -22,13 +22,16 @@ hostprogs := pnmtologo
 
 # Create commands like "pnmtologo -t mono -n logo_mac_mono -o ..."
 quiet_cmd_logo = LOGO    $@
-      cmd_logo = $(obj)/pnmtologo -t $(lastword $(subst _, ,$*)) -n $* -o $@ $<
+      cmd_logo = $(obj)/pnmtologo -t $2 -n $* -o $@ $<
 
 $(obj)/%.c: $(src)/%.pbm $(obj)/pnmtologo FORCE
-	$(call if_changed,logo)
+	$(call if_changed,logo,mono)
 
-$(obj)/%.c: $(src)/%.ppm $(obj)/pnmtologo FORCE
-	$(call if_changed,logo)
+$(obj)/%_vga16.c: $(src)/%_vga16.ppm $(obj)/pnmtologo FORCE
+	$(call if_changed,logo,vga16)
+
+$(obj)/%_clut224.c: $(src)/%_clut224.ppm $(obj)/pnmtologo FORCE
+	$(call if_changed,logo,clut224)
 
 # generated C files
 targets += *_mono.c *_vga16.c *_clut224.c

-- 
2.51.2