diff options
| author | Adam Ford <aford173@gmail.com> | 2023-05-26 06:05:57 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-05-26 10:20:41 +0300 |
| commit | 89691775f5735fca9dc40e119edcbb52a25b9612 (patch) | |
| tree | 80c43dbd5bab7d8e54f178f1c6e24710e68ac7c7 /include/drm/bridge | |
| parent | 171b3b1e0f8b8c894f2388e1cf765a56f831ee5e (diff) | |
| download | linux-89691775f5735fca9dc40e119edcbb52a25b9612.tar.xz | |
drm: bridge: samsung-dsim: Dynamically configure DPHY timing
The DPHY timings are currently hard coded. Since the input
clock can be variable, the phy timings need to be variable
too. To facilitate this, we need to cache the hs_clock
based on what is generated from the PLL.
The phy_mipi_dphy_get_default_config_for_hsclk function
configures the DPHY timings in pico-seconds, and a small macro
converts those timings into clock cycles based on the hs_clk.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # imx8mm-icore
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-6-aford173@gmail.com
Diffstat (limited to 'include/drm/bridge')
| -rw-r--r-- | include/drm/bridge/samsung-dsim.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/bridge/samsung-dsim.h b/include/drm/bridge/samsung-dsim.h index 2c20b9460c9a..05100e91ecb9 100644 --- a/include/drm/bridge/samsung-dsim.h +++ b/include/drm/bridge/samsung-dsim.h @@ -93,6 +93,7 @@ struct samsung_dsim { u32 pll_clk_rate; u32 burst_clk_rate; + u32 hs_clock; u32 esc_clk_rate; u32 lanes; u32 mode_flags; |