| Message ID | 20181210161729.29720-7-jagan@amarulasolutions.com |
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[213.198.162.59]) by smtp.gmail.com with ESMTPSA id b13sm8397503wrn.28.2018.12.10.08.17.53 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Dec 2018 08:17:54 -0800 (PST) From: Jagan Teki <jagan@amarulasolutions.com> To: Maxime Ripard <maxime.ripard@bootlin.com>, Chen-Yu Tsai <wens@csie.org>, Michael Turquette <mturquette@baylibre.com>, Stephen Boyd <sboyd@kernel.org> Cc: linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Michael Trimarchi <michael@amarulasolutions.com>, linux-sunxi <linux-sunxi@googlegroups.com>, linux-amarula@amarulasolutions.com, Jagan Teki <jagan@amarulasolutions.com> Subject: [PATCH v5 06/17] drm/sun4i: sun6i_mipi_dsi: Fix TCON DRQ set bits Date: Mon, 10 Dec 2018 21:47:18 +0530 Message-Id: <20181210161729.29720-7-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20181210161729.29720-1-jagan@amarulasolutions.com> References: <20181210161729.29720-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Original-Sender: jagan@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=mN9suXNq; spf=pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jagan@amarulasolutions.com Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: <linux-amarula.amarulasolutions.com> X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: <https://groups.google.com/a/amarulasolutions.com/group/linux-amarula/post>, <mailto:linux-amarula@amarulasolutions.com> List-Help: <https://support.google.com/a/amarulasolutions.com/bin/topic.py?topic=25838>, <mailto:linux-amarula+help@amarulasolutions.com> List-Archive: <https://groups.google.com/a/amarulasolutions.com/group/linux-amarula/> List-Unsubscribe: <mailto:googlegroups-manage+476853432473+unsubscribe@googlegroups.com>, <https://groups.google.com/a/amarulasolutions.com/group/linux-amarula/subscribe> |
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diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index cdd44a1307b3..c9b0222ebcd4 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -367,9 +367,9 @@ static void sun6i_dsi_setup_burst(struct sun6i_dsi *dsi, struct mipi_dsi_device *device = dsi->device; u32 val = 0; - if ((mode->hsync_end - mode->hdisplay) > 20) { + if ((mode->hsync_start - mode->hdisplay) > 20) { /* Maaaaaagic */ - u16 drq = (mode->hsync_end - mode->hdisplay) - 20; + u16 drq = (mode->hsync_start - mode->hdisplay) - 20; drq *= mipi_dsi_pixel_format_to_bpp(device->format); drq /= 32;
TCON DRQ set bits for non-burst DSI mode can computed via horizontal front porch instead of front porch + sync timings. BSP code form BPI-M64-bsp is computing TCON DRQ set bits for non-burts as (from linux-sunxi/ drivers/video/sunxi/disp2/disp/de/lowlevel_sun50iw1/de_dsi.c) => panel->lcd_ht - panel->lcd_x - panel->lcd_hbp => (timmings->hor_front_porch + panel->lcd_hbp + panel->lcd_x) - panel->lcd_x - panel->hbp => timmings->hor_front_porch => mode->hsync_start - mode->hdisplay So, update the DRQ set bits accordingly. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)