From e982e3f02071473cd1211e26cbe74a56b5be0aa0 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Oct 2018 09:24:22 +0200 Subject: drm: dsi: Add lane clock rate fields to DSI device The DSI devices have a maximum operating frequency specified in their data sheet per the MIPI specification, and DSI hosts that can scale their frequency need this information to set their clock dividers right. As current panel drivers often lack this information, specify that setting it to zero will make the DSI host use some reasonable default. Reviewed-by: Andrzej Hajda Signed-off-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/20181023072422.25754-1-linus.walleij@linaro.org --- include/drm/drm_mipi_dsi.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/drm/drm_mipi_dsi.h') diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index 4fef19064b0f..491528f48cfb 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -168,6 +168,12 @@ struct mipi_dsi_device_info { * @format: pixel format for video mode * @lanes: number of active data lanes * @mode_flags: DSI operation mode related flags + * @hs_rate: maximum lane frequency for high speed mode in hertz, this should + * be set to the real limits of the hardware, zero is only accepted for + * legacy drivers + * @lp_rate: maximum lane frequency for low power mode in hertz, this should + * be set to the real limits of the hardware, zero is only accepted for + * legacy drivers */ struct mipi_dsi_device { struct mipi_dsi_host *host; @@ -178,6 +184,8 @@ struct mipi_dsi_device { unsigned int lanes; enum mipi_dsi_pixel_format format; unsigned long mode_flags; + unsigned long hs_rate; + unsigned long lp_rate; }; #define MIPI_DSI_MODULE_PREFIX "mipi-dsi:" -- cgit v1.2.3