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| author | Marco Felsch <m.felsch@pengutronix.de> | 2022-09-30 14:48:10 +0200 |
|---|---|---|
| committer | Sakari Ailus <sakari.ailus@linux.intel.com> | 2022-10-27 14:38:04 +0300 |
| commit | 22168675bae75e158c459ef2dee3b6ebd52a80ed (patch) | |
| tree | bdb716e03686b78132b933e08f00728d55881163 /include/linux/phy | |
| parent | 7afa5db0eaae8f6c110690311167d5e5cd728efb (diff) | |
| download | linux-stable-22168675bae75e158c459ef2dee3b6ebd52a80ed.tar.gz linux-stable-22168675bae75e158c459ef2dee3b6ebd52a80ed.tar.bz2 linux-stable-22168675bae75e158c459ef2dee3b6ebd52a80ed.zip | |
phy: dphy: add support to calculate the timing based on hs_clk_rate
For MIPI-CSI sender use-case it is common to specify the allowed
link-frequencies which should be used for the MIPI link and is
half the hs-clock rate.
This commit adds a helper to calculate the D-PHY timing based on the
hs-clock rate so we don't need to calculate the timings within the
driver.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Diffstat (limited to 'include/linux/phy')
| -rw-r--r-- | include/linux/phy/phy-mipi-dphy.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/phy/phy-mipi-dphy.h b/include/linux/phy/phy-mipi-dphy.h index a877ffee845d..1ac128d78dfe 100644 --- a/include/linux/phy/phy-mipi-dphy.h +++ b/include/linux/phy/phy-mipi-dphy.h @@ -279,6 +279,9 @@ int phy_mipi_dphy_get_default_config(unsigned long pixel_clock, unsigned int bpp, unsigned int lanes, struct phy_configure_opts_mipi_dphy *cfg); +int phy_mipi_dphy_get_default_config_for_hsclk(unsigned long long hs_clk_rate, + unsigned int lanes, + struct phy_configure_opts_mipi_dphy *cfg); int phy_mipi_dphy_config_validate(struct phy_configure_opts_mipi_dphy *cfg); #endif /* __PHY_MIPI_DPHY_H_ */ |