linux-kernel - [PATCH 1/2] drm: use .hword to represent 16-bit numbers

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Message-Id: <1488810456-4583-2-git-send-email-javi.merino@kernel.org>
Date:   Mon,  6 Mar 2017 14:27:35 +0000
From:   Javi Merino <javi.merino@...nel.org>
To:     airlied@...ux.ie, C.Emde@...dl.org
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-kernel@...ts.codethink.co.uk,
        Javi Merino <javi.merino@...nel.org>
Subject: [PATCH 1/2] drm: use .hword to represent 16-bit numbers

The size of .word is the size of a word in the given platform, which
for intel systems is 16-bits but other architectures use different
sizes.  However, .hword emits 16-bit numbers regardless of the
platform (and despite the name).  The quantities specified in EDID are
platform independent, so they should work in spite of the default
target of the cc you are using, so use .hword where EDID specifies
16-bit numbers.

Cc: Carsten Emde <C.Emde@...dl.org>
Cc: David Airlie <airlied@...ux.ie>
Signed-off-by: Javi Merino <javi.merino@...nel.org>
---
 Documentation/EDID/edid.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/EDID/edid.S b/Documentation/EDID/edid.S
index 7ac0327..ef082dc 100644
--- a/Documentation/EDID/edid.S
+++ b/Documentation/EDID/edid.S
@@ -59,9 +59,9 @@
 /* Fixed header pattern */
 header:		.byte	0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
 
-mfg_id:		.word	swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
+mfg_id:		.hword	swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
 
-prod_code:	.word	0
+prod_code:	.hword	0
 
 /* Serial number. 32 bits, little endian. */
 serial_number:	.long	SERIAL
@@ -177,7 +177,7 @@ std_vres:	.byte	(XY_RATIO<<6)+VFREQ-60
 
 descriptor1:
 /* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
-clock:		.word	CLOCK/10
+clock:		.hword	CLOCK/10
 
 /* Horizontal active pixels 8 lsbits (0-4095) */
 x_act_lsb:	.byte	XPIX&0xff
-- 
2.1.4