On Tue, May 2, 2023 at 3:35 AM Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > > On 02.05.2023 03:07, Adam Ford wrote: > > This series fixes the blanking pack size and the PMS calculation. It then > > adds support to allows the DSIM to dynamically DPHY clocks, and support > > non-burst mode while allowing the removal of the hard-coded clock values > > for the PLL for imx8m mini/nano/plus, and it allows the removal of the > > burst-clock device tree entry when burst-mode isn't supported by connected > > devices like an HDMI brige. In that event, the HS clock is set to the value > > requested by the bridge chip. > > > > This has been tested on both an i.MX8M Nano and i.MX8M Plus, and should work > > on i.MX8M Mini as well. > > > > Adam Ford (6): > > drm: bridge: samsung-dsim: Fix PMS Calculator on imx8m[mnp] > > drm: bridge: samsung-dsim: Fetch pll-clock-frequency automatically > > drm: bridge: samsung-dsim: Select GENERIC_PHY_MIPI_DPHY > > drm: bridge: samsung-dsim: Dynamically configure DPHY timing > > drm: bridge: samsung-dsim: Support non-burst mode > > drm: bridge: samsung-dsim: Let blanking calcuation work in non-burst > > mode > > > > Lucas Stach (1): > > drm: bridge: samsung-dsim: fix blanking packet size calculation > > > > drivers/gpu/drm/bridge/Kconfig | 1 + > > drivers/gpu/drm/bridge/samsung-dsim.c | 150 ++++++++++++++++++++++---- > > include/drm/bridge/samsung-dsim.h | 5 + > > 3 files changed, 136 insertions(+), 20 deletions(-) > > Works fine (= doesn't break) on Exynos. > Thank is great news. Thank you for testing! > Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> adam > > > > > > --- > > V3: When checking if the bust-clock is present, only check for it > > in the device tree, and don't check the presence of the > > MIPI_DSI_MODE_VIDEO_BURST flag as it breaks an existing Exynos > > board. > > > > Add a new patch to the series to select GENERIC_PHY_MIPI_DPHY in > > Kconfig otherwise the build breaks on the 32-bit Exynos. > > > > Change vco_min variable name to min_freq > > > > Added tested-by from Chen-Yu Tsai > > > > V2: Instead of using my packet blanking calculation, this integrates > > on from Lucas Stach which gets modified later in the series to > > cache the value of the HS-clock instead of having to do the > > calucations again. > > > > Instead of completely eliminating the PLL clock frequency from > > the device tree, this makes it optional to avoid breaking some > > Samsung devices. When the samsung,pll-clock-frequency is not > > found, it reads the value of the clock named "sclk_mipi" > > This also maintains backwords compatibility with older device > > trees. > > > > This also changes the DPHY calcuation from a Look-up table, > > a reverse engineered algorithm which uses > > phy_mipi_dphy_get_default_config to determine the standard > > nominal values and calculates the cycles necessary to update > > the DPHY timings accordingly. > > > > Best regards > -- > Marek Szyprowski, PhD > Samsung R&D Institute Poland >
