[PATCH 02/10] drm/sun4i: sun6i_mipi_dsi: Support instruction loop selection

Maxime Ripard
2018-11-05T10:38:57Z

On Sat, Nov 03, 2018 at 03:38:52PM +0530, Jagan Teki wrote:
> Instruction loop selection would require before writing
> loop number registers, so enable idle, LP11 bits on
> loop selection register.
>
> Reference code available in BSP
> (in drivers/video/sunxi/disp2/disp/de/lowlevel_sun50iw1/de_dsi.c)
> (dsi_dev[sel]->dsi_inst_loop_sel.dwval = 2<<(4*DSI_INST_ID_LP11) |
> 3<<(4*DSI_INST_ID_DLY);
>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> ---
> drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> index da152c21ec62..077b57ec964c 100644
> --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> @@ -397,6 +397,10 @@ static void sun6i_dsi_setup_inst_loop(struct sun6i_dsi *dsi,
> struct mipi_dsi_device *device = dsi->device;
> u16 delay;
>
> + regmap_write(dsi->regs, SUN6I_DSI_INST_LOOP_SEL_REG,
> + DSI_INST_ID_HSC << (4 * DSI_INST_ID_LP11) |
> + DSI_INST_ID_HSD << (4 * DSI_INST_ID_DLY));
> +

Please put this with the other instructions settings below.

hanks!
Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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