From patchwork Thu Jul 18 10:44:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13736371 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BDC96C3DA6A for ; Thu, 18 Jul 2024 10:46:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B33AC10E76A; Thu, 18 Jul 2024 10:46:00 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1C59F10E73C for ; Thu, 18 Jul 2024 10:45:57 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id E0F741FBBF; Thu, 18 Jul 2024 10:45:55 +0000 (UTC) Authentication-Results: smtp-out2.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 9F04E136F7; Thu, 18 Jul 2024 10:45:55 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id oFyhJWPymGbeUAAAD6G6ig (envelope-from ); Thu, 18 Jul 2024 10:45:55 +0000 From: Thomas Zimmermann To: jfalempe@redhat.com, airlied@redhat.com, sam@ravnborg.org, emil.l.velikov@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@gmail.com, daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH v5 4/7] drm/mgag200: Add dedicated variables for blanking fields Date: Thu, 18 Jul 2024 12:44:14 +0200 Message-ID: <20240718104551.575912-5-tzimmermann@suse.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240718104551.575912-1-tzimmermann@suse.de> References: <20240718104551.575912-1-tzimmermann@suse.de> MIME-Version: 1.0 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Queue-Id: E0F741FBBF X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[]; TAGGED_RCPT(0.00)[] X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Represent fields for horizontal and vertical blanking with , , and . Aligns the code with the Matrox programming manuals. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe --- drivers/gpu/drm/mgag200/mgag200_mode.c | 29 ++++++++++++++------------ 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index 1174fb79831e..89bb869b3090 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -204,23 +204,26 @@ void mgag200_init_registers(struct mga_device *mdev) void mgag200_set_mode_regs(struct mga_device *mdev, const struct drm_display_mode *mode, bool set_vidrst) { - unsigned int hdispend, hsyncstr, hsyncend, htotal; - unsigned int vdispend, vsyncstr, vsyncend, vtotal; + unsigned int hdispend, hsyncstr, hsyncend, htotal, hblkstr, hblkend; + unsigned int vdispend, vsyncstr, vsyncend, vtotal, vblkstr, vblkend; u8 misc, crtcext1, crtcext2, crtcext5; hdispend = mode->crtc_hdisplay / 8 - 1; hsyncstr = mode->crtc_hsync_start / 8 - 1; hsyncend = mode->crtc_hsync_end / 8 - 1; htotal = mode->crtc_htotal / 8 - 1; - /* Work around hardware quirk */ if ((htotal & 0x07) == 0x06 || (htotal & 0x07) == 0x04) htotal++; + hblkstr = mode->crtc_hblank_start / 8 - 1; + hblkend = htotal; vdispend = mode->crtc_vdisplay - 1; vsyncstr = mode->crtc_vsync_start - 1; vsyncend = mode->crtc_vsync_end - 1; vtotal = mode->crtc_vtotal - 2; + vblkstr = mode->crtc_vblank_start; + vblkend = vtotal + 1; misc = RREG8(MGA_MISC_IN); @@ -235,43 +238,43 @@ void mgag200_set_mode_regs(struct mga_device *mdev, const struct drm_display_mod misc &= ~MGAREG_MISC_VSYNCPOL; crtcext1 = (((htotal - 4) & 0x100) >> 8) | - ((hdispend & 0x100) >> 7) | + ((hblkstr & 0x100) >> 7) | ((hsyncstr & 0x100) >> 6) | - (htotal & 0x40); + (hblkend & 0x40); if (set_vidrst) crtcext1 |= MGAREG_CRTCEXT1_VRSTEN | MGAREG_CRTCEXT1_HRSTEN; crtcext2 = ((vtotal & 0xc00) >> 10) | ((vdispend & 0x400) >> 8) | - ((vdispend & 0xc00) >> 7) | + ((vblkstr & 0xc00) >> 7) | ((vsyncstr & 0xc00) >> 5) | ((vdispend & 0x400) >> 3); crtcext5 = 0x00; WREG_CRT(0x00, htotal - 4); WREG_CRT(0x01, hdispend); - WREG_CRT(0x02, hdispend); - WREG_CRT(0x03, (htotal & 0x1f) | 0x80); + WREG_CRT(0x02, hblkstr); + WREG_CRT(0x03, (hblkend & 0x1f) | 0x80); WREG_CRT(0x04, hsyncstr); - WREG_CRT(0x05, ((htotal & 0x20) << 2) | (hsyncend & 0x1f)); + WREG_CRT(0x05, ((hblkend & 0x20) << 2) | (hsyncend & 0x1f)); WREG_CRT(0x06, vtotal & 0xff); WREG_CRT(0x07, ((vtotal & 0x100) >> 8) | ((vdispend & 0x100) >> 7) | ((vsyncstr & 0x100) >> 6) | - ((vdispend & 0x100) >> 5) | + ((vblkstr & 0x100) >> 5) | ((vdispend & 0x100) >> 4) | /* linecomp */ ((vtotal & 0x200) >> 4) | ((vdispend & 0x200) >> 3) | ((vsyncstr & 0x200) >> 2)); - WREG_CRT(0x09, ((vdispend & 0x200) >> 4) | + WREG_CRT(0x09, ((vblkstr & 0x200) >> 4) | ((vdispend & 0x200) >> 3)); WREG_CRT(0x10, vsyncstr & 0xff); WREG_CRT(0x11, (vsyncend & 0x0f) | 0x20); WREG_CRT(0x12, vdispend & 0xff); WREG_CRT(0x14, 0); - WREG_CRT(0x15, vdispend & 0xff); - WREG_CRT(0x16, (vtotal + 1) & 0xff); + WREG_CRT(0x15, vblkstr & 0xff); + WREG_CRT(0x16, vblkend & 0xff); WREG_CRT(0x17, 0xc3); WREG_CRT(0x18, vdispend & 0xff);