From: maxime.ripard@bootlin.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 01/12] drm/sun4i: sun6i_mipi_dsi: Compute burst mode loop N1 instruction delay
Date: Mon, 19 Nov 2018 09:27:07 +0100 [thread overview]
Message-ID: <20181119082707.kbsw2gyntxxbh6no@flea> (raw)
In-Reply-To: <20181116163916.29621-2-jagan@amarulasolutions.com>
On Fri, Nov 16, 2018 at 10:09:05PM +0530, Jagan Teki wrote:
> Loop N1 instruction delay for burst mode lcd panel are
> computed as per BSP code.
>
> Reference code is available in BSP (from linux-sunxi
> drivers/video/sunxi/disp2/disp/de/lowlevel_sun50iw1/de_dsi.c)
>
> dsi_dev[sel]->dsi_inst_loop_num.bits.loop_n1=
> (panel->lcd_ht-panel->lcd_x)*(150)/(panel->lcd_dclk_freq*8) - 50;
> => (((mode->htotal - mode->hdisplay) * 150) /
> ((mode->clock / 1000) * 8)) - 50;
>
> So use the similar computation for loop N1 delay.
>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
*why* are you doing this? What is it fixing? on which devices?
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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next prev parent reply other threads:[~2018-11-19 8:27 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-16 16:39 [PATCH v2 00/12] drm/sun4i: Allwinner MIPI-DSI Burst mode support Jagan Teki
2018-11-16 16:39 ` [PATCH v2 01/12] drm/sun4i: sun6i_mipi_dsi: Compute burst mode loop N1 instruction delay Jagan Teki
2018-11-19 8:27 ` Maxime Ripard [this message]
2018-11-19 10:58 ` Jagan Teki
2018-11-20 13:23 ` Maxime Ripard
2018-11-20 13:36 ` Jagan Teki
2018-11-20 15:58 ` Maxime Ripard
2018-11-20 16:01 ` Vasily Khoruzhick
2018-11-20 16:19 ` Jagan Teki
2018-11-16 16:39 ` [PATCH v2 02/12] drm/sun4i: sun6i_mipi_dsi: Support instruction loop selection Jagan Teki
2018-11-16 16:39 ` [PATCH v2 03/12] drm/sun4i: sun6i_mipi_dsi: Setup burst mode timings Jagan Teki
2018-11-19 8:30 ` Maxime Ripard
2018-11-19 11:00 ` Jagan Teki
2018-11-20 15:45 ` Maxime Ripard
2018-11-20 16:22 ` Jagan Teki
2018-11-27 10:07 ` Maxime Ripard
2018-11-16 16:39 ` [PATCH v2 04/12] drm/sun4i: sun6i_mipi_dsi: Simplify drq set to support all modes Jagan Teki
2018-11-19 8:32 ` Maxime Ripard
2018-11-19 11:22 ` Jagan Teki
2018-11-20 14:32 ` Maxime Ripard
2018-11-20 14:48 ` Jagan Teki
2018-11-16 16:39 ` [PATCH v2 05/12] drm/sun4i: tcon: Export get tcon0 routine Jagan Teki
2018-11-19 8:34 ` Maxime Ripard
2018-11-16 16:39 ` [PATCH v2 06/12] drm/sun4i: sun6i_mipi_dsi: Probe tcon0 during dsi_bind Jagan Teki
2018-11-19 8:38 ` Maxime Ripard
2018-11-19 11:36 ` Jagan Teki
2018-11-20 15:44 ` Maxime Ripard
2018-11-16 16:39 ` [PATCH v2 07/12] drm/sun4i: sun6i_mipi_dsi: Setup burst mode Jagan Teki
2018-11-16 16:39 ` [PATCH v2 08/12] drm/sun4i: sun6i_mipi_dsi: Enable 2byte trail for 4-lane " Jagan Teki
2018-11-16 16:39 ` [PATCH v2 09/12] drm/sun4i: sun6i_mipi_dsi: Enable burst mode HBP, HSA_HSE Jagan Teki
2018-11-16 16:39 ` [PATCH v2 10/12] dt-bindings: panel: Add Feiyang FY07024DI26A30-D MIPI-DSI LCD panel Jagan Teki
2018-11-16 16:39 ` [PATCH v2 11/12] drm/panel: " Jagan Teki
2018-12-10 16:12 ` Jagan Teki
2018-12-13 15:07 ` Sean Paul
2018-12-13 19:26 ` Jagan Teki
2018-12-13 19:55 ` Sean Paul
2018-12-14 11:05 ` Jagan Teki
2018-12-14 14:15 ` Sean Paul
2018-11-16 16:39 ` [PATCH v2 12/12][DO NOT MERGE] arm64: allwinner: a64: pine64-lts: Enable Feiyang FY07024DI26A30-D DSI panel Jagan Teki
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