All of lore.kernel.org
 help / color / mirror / Atom feed
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: dri-devel@lists.freedesktop.org
Cc: Marek Vasut <marex@denx.de>, Peng Fan <peng.fan@nxp.com>,
	Alexander Stein <alexander.stein@ew.tq-group.com>,
	Kieran Bingham <kieran.bingham@ideasonboard.com>,
	Liu Ying <victor.liu@nxp.com>,
	Daniel Scally <dan.scally@ideasonboard.com>,
	Robby Cai <robby.cai@nxp.com>
Subject: [PATCH v3 2/4] drm: lcdif: Don't use BIT() for multi-bit register fields
Date: Thu, 29 Sep 2022 23:42:33 +0300	[thread overview]
Message-ID: <20220929204235.773-3-laurent.pinchart@ideasonboard.com> (raw)
In-Reply-To: <20220929204235.773-1-laurent.pinchart@ideasonboard.com>

The BIT() macro is meant to represent a single bit. Don't use it for
values of register fields that span multiple bits.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Liu Ying <victor.liu@nxp.com>
---
Changes since v1:

- Use hex for field values
---
 drivers/gpu/drm/mxsfb/lcdif_regs.h | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/mxsfb/lcdif_regs.h b/drivers/gpu/drm/mxsfb/lcdif_regs.h
index 013f2cace2a0..0d5d9bedd94a 100644
--- a/drivers/gpu/drm/mxsfb/lcdif_regs.h
+++ b/drivers/gpu/drm/mxsfb/lcdif_regs.h
@@ -138,9 +138,9 @@
 
 #define DISP_PARA_DISP_ON		BIT(31)
 #define DISP_PARA_SWAP_EN		BIT(30)
-#define DISP_PARA_LINE_PATTERN_UYVY_H	(GENMASK(29, 28) | BIT(26))
-#define DISP_PARA_LINE_PATTERN_RGB565	GENMASK(28, 26)
-#define DISP_PARA_LINE_PATTERN_RGB888	0
+#define DISP_PARA_LINE_PATTERN_UYVY_H	(0xd << 26)
+#define DISP_PARA_LINE_PATTERN_RGB565	(0x7 << 26)
+#define DISP_PARA_LINE_PATTERN_RGB888	(0x0 << 26)
 #define DISP_PARA_LINE_PATTERN_MASK	GENMASK(29, 26)
 #define DISP_PARA_DISP_MODE_MASK	GENMASK(25, 24)
 #define DISP_PARA_BGND_R_MASK		GENMASK(23, 16)
@@ -202,18 +202,18 @@
 
 #define CTRLDESCL0_5_EN			BIT(31)
 #define CTRLDESCL0_5_SHADOW_LOAD_EN	BIT(30)
-#define CTRLDESCL0_5_BPP_16_RGB565	BIT(26)
-#define CTRLDESCL0_5_BPP_16_ARGB1555	(BIT(26) | BIT(24))
-#define CTRLDESCL0_5_BPP_16_ARGB4444	(BIT(26) | BIT(25))
-#define CTRLDESCL0_5_BPP_YCbCr422	(BIT(26) | BIT(25) | BIT(24))
-#define CTRLDESCL0_5_BPP_24_RGB888	BIT(27)
-#define CTRLDESCL0_5_BPP_32_ARGB8888	(BIT(27) | BIT(24))
-#define CTRLDESCL0_5_BPP_32_ABGR8888	(BIT(27) | BIT(25))
+#define CTRLDESCL0_5_BPP_16_RGB565	(0x4 << 24)
+#define CTRLDESCL0_5_BPP_16_ARGB1555	(0x5 << 24)
+#define CTRLDESCL0_5_BPP_16_ARGB4444	(0x6 << 24)
+#define CTRLDESCL0_5_BPP_YCbCr422	(0x7 << 24)
+#define CTRLDESCL0_5_BPP_24_RGB888	(0x8 << 24)
+#define CTRLDESCL0_5_BPP_32_ARGB8888	(0x9 << 24)
+#define CTRLDESCL0_5_BPP_32_ABGR8888	(0xa << 24)
 #define CTRLDESCL0_5_BPP_MASK		GENMASK(27, 24)
-#define CTRLDESCL0_5_YUV_FORMAT_Y2VY1U	0
-#define CTRLDESCL0_5_YUV_FORMAT_Y2UY1V	BIT(14)
-#define CTRLDESCL0_5_YUV_FORMAT_VY2UY1	BIT(15)
-#define CTRLDESCL0_5_YUV_FORMAT_UY2VY1	(BIT(15) | BIT(14))
+#define CTRLDESCL0_5_YUV_FORMAT_Y2VY1U	(0x0 << 14)
+#define CTRLDESCL0_5_YUV_FORMAT_Y2UY1V	(0x1 << 14)
+#define CTRLDESCL0_5_YUV_FORMAT_VY2UY1	(0x2 << 14)
+#define CTRLDESCL0_5_YUV_FORMAT_UY2VY1	(0x3 << 14)
 #define CTRLDESCL0_5_YUV_FORMAT_MASK	GENMASK(15, 14)
 
 #define CSC0_CTRL_CSC_MODE_RGB2YCbCr	GENMASK(2, 1)
-- 
Regards,

Laurent Pinchart


  parent reply	other threads:[~2022-09-29 20:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-29 20:42 [PATCH v3 0/4] drm: lcdif: Improve YUV support Laurent Pinchart
2022-09-29 20:42 ` [PATCH v3 1/4] drm: lcdif: Fix indentation in lcdif_regs.h Laurent Pinchart
2022-09-29 20:42 ` Laurent Pinchart [this message]
2022-09-29 20:42 ` [PATCH v3 3/4] drm: lcdif: Switch to limited range for RGB to YUV conversion Laurent Pinchart
2022-09-29 20:42 ` [PATCH v3 4/4] drm: lcdif: Add support for YUV planes Laurent Pinchart
2022-09-30  4:01   ` Liu Ying
2022-09-30  8:05     ` Laurent Pinchart
2022-10-16  3:10 ` [PATCH v3 0/4] drm: lcdif: Improve YUV support Marek Vasut

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220929204235.773-3-laurent.pinchart@ideasonboard.com \
    --to=laurent.pinchart@ideasonboard.com \
    --cc=alexander.stein@ew.tq-group.com \
    --cc=dan.scally@ideasonboard.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=kieran.bingham@ideasonboard.com \
    --cc=marex@denx.de \
    --cc=peng.fan@nxp.com \
    --cc=robby.cai@nxp.com \
    --cc=victor.liu@nxp.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.