| Message ID | 1613619715-28785-2-git-send-email-victor.liu@nxp.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add some DRM bridge drivers support for i.MX8qm/qxp SoCs | expand |
Hey Liu, Thanks for submitting this series. This patch looks good to me. Reviewed-by: Robert Foss <robert.foss@linaro.org> On Thu, 18 Feb 2021 at 04:56, Liu Ying <victor.liu@nxp.com> wrote: > > This patch allows LVDS PHYs to be configured through > the generic functions and through a custom structure > added to the generic union. > > The parameters added here are based on common LVDS PHY > implementation practices. The set of parameters > should cover all potential users. > > Cc: Kishon Vijay Abraham I <kishon@ti.com> > Cc: Vinod Koul <vkoul@kernel.org> > Cc: NXP Linux Team <linux-imx@nxp.com> > Signed-off-by: Liu Ying <victor.liu@nxp.com> > --- > v3->v4: > * No change. > > v2->v3: > * No change. > > v1->v2: > * No change. > > include/linux/phy/phy-lvds.h | 48 ++++++++++++++++++++++++++++++++++++++++++++ > include/linux/phy/phy.h | 4 ++++ > 2 files changed, 52 insertions(+) > create mode 100644 include/linux/phy/phy-lvds.h > > diff --git a/include/linux/phy/phy-lvds.h b/include/linux/phy/phy-lvds.h > new file mode 100644 > index 00000000..1b5b9d6 > --- /dev/null > +++ b/include/linux/phy/phy-lvds.h > @@ -0,0 +1,48 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Copyright 2020 NXP > + */ > + > +#ifndef __PHY_LVDS_H_ > +#define __PHY_LVDS_H_ > + > +/** > + * struct phy_configure_opts_lvds - LVDS configuration set > + * > + * This structure is used to represent the configuration state of a > + * LVDS phy. > + */ > +struct phy_configure_opts_lvds { > + /** > + * @bits_per_lane_and_dclk_cycle: > + * > + * Number of bits per data lane and differential clock cycle. > + */ > + unsigned int bits_per_lane_and_dclk_cycle; > + > + /** > + * @differential_clk_rate: > + * > + * Clock rate, in Hertz, of the LVDS differential clock. > + */ > + unsigned long differential_clk_rate; > + > + /** > + * @lanes: > + * > + * Number of active, consecutive, data lanes, starting from > + * lane 0, used for the transmissions. > + */ > + unsigned int lanes; > + > + /** > + * @is_slave: > + * > + * Boolean, true if the phy is a slave which works together > + * with a master phy to support dual link transmission, > + * otherwise a regular phy or a master phy. > + */ > + bool is_slave; > +}; > + > +#endif /* __PHY_LVDS_H_ */ > diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h > index e435bdb..d450b44 100644 > --- a/include/linux/phy/phy.h > +++ b/include/linux/phy/phy.h > @@ -17,6 +17,7 @@ > #include <linux/regulator/consumer.h> > > #include <linux/phy/phy-dp.h> > +#include <linux/phy/phy-lvds.h> > #include <linux/phy/phy-mipi-dphy.h> > > struct phy; > @@ -51,10 +52,13 @@ enum phy_mode { > * the MIPI_DPHY phy mode. > * @dp: Configuration set applicable for phys supporting > * the DisplayPort protocol. > + * @lvds: Configuration set applicable for phys supporting > + * the LVDS phy mode. > */ > union phy_configure_opts { > struct phy_configure_opts_mipi_dphy mipi_dphy; > struct phy_configure_opts_dp dp; > + struct phy_configure_opts_lvds lvds; > }; > > /** > -- > 2.7.4 >
diff --git a/include/linux/phy/phy-lvds.h b/include/linux/phy/phy-lvds.h new file mode 100644 index 00000000..1b5b9d6 --- /dev/null +++ b/include/linux/phy/phy-lvds.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2020 NXP + */ + +#ifndef __PHY_LVDS_H_ +#define __PHY_LVDS_H_ + +/** + * struct phy_configure_opts_lvds - LVDS configuration set + * + * This structure is used to represent the configuration state of a + * LVDS phy. + */ +struct phy_configure_opts_lvds { + /** + * @bits_per_lane_and_dclk_cycle: + * + * Number of bits per data lane and differential clock cycle. + */ + unsigned int bits_per_lane_and_dclk_cycle; + + /** + * @differential_clk_rate: + * + * Clock rate, in Hertz, of the LVDS differential clock. + */ + unsigned long differential_clk_rate; + + /** + * @lanes: + * + * Number of active, consecutive, data lanes, starting from + * lane 0, used for the transmissions. + */ + unsigned int lanes; + + /** + * @is_slave: + * + * Boolean, true if the phy is a slave which works together + * with a master phy to support dual link transmission, + * otherwise a regular phy or a master phy. + */ + bool is_slave; +}; + +#endif /* __PHY_LVDS_H_ */ diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index e435bdb..d450b44 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -17,6 +17,7 @@ #include <linux/regulator/consumer.h> #include <linux/phy/phy-dp.h> +#include <linux/phy/phy-lvds.h> #include <linux/phy/phy-mipi-dphy.h> struct phy; @@ -51,10 +52,13 @@ enum phy_mode { * the MIPI_DPHY phy mode. * @dp: Configuration set applicable for phys supporting * the DisplayPort protocol. + * @lvds: Configuration set applicable for phys supporting + * the LVDS phy mode. */ union phy_configure_opts { struct phy_configure_opts_mipi_dphy mipi_dphy; struct phy_configure_opts_dp dp; + struct phy_configure_opts_lvds lvds; }; /**
This patch allows LVDS PHYs to be configured through the generic functions and through a custom structure added to the generic union. The parameters added here are based on common LVDS PHY implementation practices. The set of parameters should cover all potential users. Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Vinod Koul <vkoul@kernel.org> Cc: NXP Linux Team <linux-imx@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> --- v3->v4: * No change. v2->v3: * No change. v1->v2: * No change. include/linux/phy/phy-lvds.h | 48 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/phy/phy.h | 4 ++++ 2 files changed, 52 insertions(+) create mode 100644 include/linux/phy/phy-lvds.h