| Message ID | 1483517711-23849-3-git-send-email-hoegeun.kwon@samsung.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
Hi Hoegeun, I already tested this patch. But this patch does not include my tested-by tag. Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Regards, Chanwoo Choi On 2017년 01월 04일 17:15, Hoegeun Kwon wrote: > This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel > driver. This panel has 1440x2560 resolution in 5.7-inch physical > panel in the TM2 device. > > Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> > Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com> > Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> > --- > .../bindings/display/panel/samsung,s6e3ha2.txt | 40 ++ > drivers/gpu/drm/panel/Kconfig | 6 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 741 +++++++++++++++++++++ > 4 files changed, 788 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > > diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > new file mode 100644 > index 0000000..6879f51 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > @@ -0,0 +1,40 @@ > +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel > + > +Required properties: > + - compatible: "samsung,s6e3ha2" > + - reg: the virtual channel number of a DSI peripheral > + - vdd3-supply: I/O voltage supply > + - vci-supply: voltage supply for analog circuits > + - reset-gpios: a GPIO spec for the reset pin (active low) > + - enable-gpios: a GPIO spec for the panel enable pin (active high) > + - te-gpios: a GPIO spec for the tearing effect synchronization signal > + gpio pin (active high) > + > +The device node can contain one 'port' child node with one child > +'endpoint' node, according to the bindings defined in [1]. This > +node should describe panel's video bus. > + > +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt > + > +Example: > + > +&dsi { > + ... > + > + panel@0 { > + compatible = "samsung,s6e3ha2"; > + reg = <0>; > + vdd3-supply = <&ldo27_reg>; > + vci-supply = <&ldo28_reg>; > + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; > + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; > + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; > + > + port { > + panel_in: endpoint { > + remote-endpoint = <&dsi_out>; > + }; > + }; > + }; > +}; > + > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 62aba97..eea2902 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -52,6 +52,12 @@ config DRM_PANEL_PANASONIC_VVX10F034N00 > WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some > Xperia Z2 tablets > > +config DRM_PANEL_SAMSUNG_S6E3HA2 > + tristate "Samsung S6E3HA2 DSI video mode panel" > + depends on OF > + depends on DRM_MIPI_DSI > + select VIDEOMODE_HELPERS > + > config DRM_PANEL_SAMSUNG_S6E8AA0 > tristate "Samsung S6E8AA0 DSI video mode panel" > depends on OF > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index a5c7ec0..1d483b0 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o > obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o > obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o > obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o > +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o > obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o > obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o > obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o > diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > new file mode 100644 > index 0000000..8c5a1c2 > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > @@ -0,0 +1,741 @@ > +/* > + * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. > + * > + * Copyright (c) 2016 Samsung Electronics Co., Ltd. > + * Donghwa Lee <dh09.lee@samsung.com> > + * Hyungwon Hwang <human.hwang@samsung.com> > + * Hoegeun Kwon <hoegeun.kwon@samsung.com> > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + */ > + > +#include <drm/drmP.h> > +#include <drm/drm_mipi_dsi.h> > +#include <drm/drm_panel.h> > +#include <linux/backlight.h> > +#include <linux/gpio/consumer.h> > +#include <linux/regulator/consumer.h> > + > +#define S6E3HA2_MIN_BRIGHTNESS 0 > +#define S6E3HA2_MAX_BRIGHTNESS 100 > +#define S6E3HA2_DEFAULT_BRIGHTNESS 80 > + > +#define S6E3HA2_NUM_GAMMA_STEPS 46 > +#define S6E3HA2_GAMMA_CMD_CNT 35 > +#define S6E3HA2_VINT_STATUS_MAX 10 > + > +static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, > + 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, > + 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, > + 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, > + 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a, > + 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a, > + 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85, > + 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b, > + 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b, > + 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89, > + 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c, > + 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88, > + 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a, > + 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b, > + 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c, > + 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c, > + 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, > + 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, > + 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b, > + 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e, > + 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e, > + 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d, > + 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c, > + 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83, > + 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a, > + 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83, > + 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a, > + 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83, > + 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89, > + 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83, > + 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a, > + 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82, > + 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87, > + 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82, > + 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88, > + 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83, > + 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89, > + 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82, > + 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86, > + 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82, > + 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87, > + 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81, > + 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86, > + 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82, > + 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83, > + 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82, > + 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82, > + 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, > + 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, > + 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, > + 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, > + 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, > + 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, > + 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, > + 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, > + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, > + 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, > + 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, > + 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, > + 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, > + 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, > + 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, > + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, > + 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, > + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 } > +}; > + > +unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { > + 0x18, 0x19, 0x1a, 0x1b, 0x1c, > + 0x1d, 0x1e, 0x1f, 0x20, 0x21 > +}; > + > +struct s6e3ha2 { > + struct device *dev; > + struct drm_panel panel; > + struct backlight_device *bl_dev; > + > + struct regulator_bulk_data supplies[2]; > + struct gpio_desc *reset_gpio; > + struct gpio_desc *enable_gpio; > + > + /* This field is tested by functions directly accessing DSI bus before > + * transfer, transfer is skipped if it is set. In case of transfer > + * failure or unexpected response the field is set to error value. > + * Such construct allows to eliminate many checks in higher level > + * functions. > + */ > + int error; > +}; > + > +static int s6e3ha2_clear_error(struct s6e3ha2 *ctx) > +{ > + int ret = ctx->error; > + > + ctx->error = 0; > + return ret; > +} > + > +static void s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) > +{ > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + ssize_t ret; > + > + if (ctx->error < 0) > + return; > + > + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); > + if (ret < 0) { > + dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", > + ret, (int)len, data); > + ctx->error = ret; > + } > +} > + > +#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ > + static const u8 d[] = { seq }; \ > + s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ > +} while (0) > + > +static void s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); > +} > + > +static void s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); > +} > + > +static void s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); > +} > + > +static void s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); > +} > + > +static void s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); > + s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); > +} > + > +static void s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); > + s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, > + 0x40, 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5); > +} > + > +static void s6e3ha2_aor_control(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); > +} > + > +static void s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); > +} > + > +static void s6e3ha2_acl_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); > +} > + > +static void s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); > +} > + > +static void s6e3ha2_test_global(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); > +} > + > +static void s6e3ha2_test(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); > +} > + > +static void s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, > + 0xbd, 0x33, 0x11, 0x02, 0x16, 0x02, 0x16); > +} > + > +static void s6e3ha2_pentile_control(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); > +} > + > +static void s6e3ha2_poc_global(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); > +} > + > +static void s6e3ha2_poc_setting(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); > +} > + > +static void s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); > +} > + > +static void s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); > +} > + > +static void s6e3ha2_hbm_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); > +} > + > +static void s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); > +} > + > +static void s6e3ha2_gamma_update(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); > + ndelay(100); /* need for 100ns delay */ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); > +} > + > +static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) > +{ > + return bl_dev->props.brightness; > +} > + > +static void s6e3ha2_set_vint(struct s6e3ha2 *ctx) > +{ > + struct backlight_device *bl_dev = ctx->bl_dev; > + unsigned int brightness = bl_dev->props.brightness; > + unsigned char data[] = { 0xf4, 0x8b, > + vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / > + S6E3HA2_MAX_BRIGHTNESS] }; > + > + s6e3ha2_dcs_write(ctx, data, 3); > +} > + > +static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) > +{ > + return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / > + S6E3HA2_MAX_BRIGHTNESS; > +} > + > +static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) > +{ > + struct backlight_device *bl_dev = ctx->bl_dev; > + unsigned int index = s6e3ha2_get_brightness_index(brightness); > + u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; > + > + memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); > + s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); > + > + s6e3ha2_gamma_update(ctx); > + bl_dev->props.brightness = brightness; > + > + return 0; > +} > + > +static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) > +{ > + struct s6e3ha2 *ctx = (struct s6e3ha2 *)bl_get_data(bl_dev); > + unsigned int brightness = bl_dev->props.brightness; > + > + if (brightness < S6E3HA2_MIN_BRIGHTNESS || > + brightness > bl_dev->props.max_brightness) { > + dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); > + return -EINVAL; > + } > + > + if (bl_dev->props.power > FB_BLANK_NORMAL) > + return -EPERM; > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_update_gamma(ctx, brightness); > + s6e3ha2_aor_control(ctx); > + s6e3ha2_set_vint(ctx); > + s6e3ha2_test_key_off_f0(ctx); > + > + return ctx->error; > +} > + > +static const struct backlight_ops s6e3ha2_bl_ops = { > + .get_brightness = s6e3ha2_get_brightness, > + .update_status = s6e3ha2_set_brightness, > +}; > + > +static void s6e3ha2_panel_init(struct s6e3ha2 *ctx) > +{ > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + mipi_dsi_dcs_exit_sleep_mode(dsi); > + usleep_range(5000, 6000); > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_single_dsi_set(ctx); > + s6e3ha2_test_key_on_fc(ctx); > + s6e3ha2_freq_calibration(ctx); > + s6e3ha2_test_key_off_fc(ctx); > + s6e3ha2_test_key_off_f0(ctx); > +} > + > +static int s6e3ha2_power_off(struct s6e3ha2 *ctx) > +{ > + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > +} > + > +static int s6e3ha2_disable(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + mipi_dsi_dcs_enter_sleep_mode(dsi); > + if (ctx->error != 0) > + goto err; > + > + mipi_dsi_dcs_set_display_off(dsi); > + if (ctx->error != 0) > + goto err; > + > + msleep(40); > + ctx->bl_dev->props.power = FB_BLANK_NORMAL; > + > + return 0; > +err: > + return ctx->error; > +} > + > +static int s6e3ha2_unprepare(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + int ret; > + > + ret = s6e3ha2_clear_error(ctx); > + if (!ret) > + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; > + > + return s6e3ha2_power_off(ctx); > +} > + > +static int s6e3ha2_power_on(struct s6e3ha2 *ctx) > +{ > + int ret; > + > + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > + if (ret < 0) > + return ret; > + > + msleep(120); > + > + gpiod_set_value(ctx->enable_gpio, 0); > + usleep_range(5000, 6000); > + gpiod_set_value(ctx->enable_gpio, 1); > + > + gpiod_set_value(ctx->reset_gpio, 1); > + usleep_range(5000, 6000); > + gpiod_set_value(ctx->reset_gpio, 0); > + usleep_range(5000, 6000); > + > + return 0; > +} > +static int s6e3ha2_prepare(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + int ret; > + > + ret = s6e3ha2_power_on(ctx); > + if (ret < 0) > + return ret; > + > + s6e3ha2_panel_init(ctx); > + > + ret = s6e3ha2_clear_error(ctx); > + if (ret < 0) { > + s6e3ha2_power_off(ctx); > + return ret; > + } > + > + ctx->bl_dev->props.power = FB_BLANK_NORMAL; > + > + return 0; > +} > + > +static int s6e3ha2_enable(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + /* common setting */ > + mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_test_key_on_fc(ctx); > + s6e3ha2_touch_hsync_on1(ctx); > + s6e3ha2_pentile_control(ctx); > + s6e3ha2_poc_global(ctx); > + s6e3ha2_poc_setting(ctx); > + s6e3ha2_test_key_off_fc(ctx); > + > + /* pcd setting off for TB */ > + s6e3ha2_pcd_set_off(ctx); > + s6e3ha2_err_fg_set(ctx); > + s6e3ha2_te_start_setting(ctx); > + > + /* brightness setting */ > + s6e3ha2_set_brightness(ctx->bl_dev); > + s6e3ha2_aor_control(ctx); > + s6e3ha2_caps_elvss_set(ctx); > + s6e3ha2_gamma_update(ctx); > + s6e3ha2_acl_off(ctx); > + s6e3ha2_acl_off_opr(ctx); > + s6e3ha2_hbm_off(ctx); > + > + /* elvss temp compensation */ > + s6e3ha2_test_global(ctx); > + s6e3ha2_test(ctx); > + s6e3ha2_test_key_off_f0(ctx); > + > + mipi_dsi_dcs_set_display_on(dsi); > + if (ctx->error != 0) > + return ctx->error; > + > + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; > + > + return 0; > +} > + > +static const struct drm_display_mode default_mode = { > + .clock = 14874, > + .hdisplay = 1440, > + .hsync_start = 1440 + 1, > + .hsync_end = 1440 + 1 + 1, > + .htotal = 1440 + 1 + 1 + 1, > + .vdisplay = 2560, > + .vsync_start = 2560 + 1, > + .vsync_end = 2560 + 1 + 1, > + .vtotal = 2560 + 1 + 1 + 15, > + .vrefresh = 60, > + .flags = 0, > +}; > + > +static int s6e3ha2_get_modes(struct drm_panel *panel) > +{ > + struct drm_connector *connector = panel->connector; > + struct drm_display_mode *mode; > + > + mode = drm_mode_duplicate(panel->drm, &default_mode); > + if (!mode) { > + DRM_ERROR("failed to create a new display mode\n"); > + DRM_ERROR("failed to add mode %ux%ux@%u\n", > + default_mode.hdisplay, default_mode.vdisplay, > + default_mode.vrefresh); > + return -ENOMEM; > + } > + > + drm_mode_set_name(mode); > + > + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; > + drm_mode_probed_add(connector, mode); > + > + connector->display_info.width_mm = 71; > + connector->display_info.height_mm = 125; > + > + return 1; > +} > + > +static const struct drm_panel_funcs s6e3ha2_drm_funcs = { > + .disable = s6e3ha2_disable, > + .unprepare = s6e3ha2_unprepare, > + .prepare = s6e3ha2_prepare, > + .enable = s6e3ha2_enable, > + .get_modes = s6e3ha2_get_modes, > +}; > + > +static int s6e3ha2_probe(struct mipi_dsi_device *dsi) > +{ > + struct device *dev = &dsi->dev; > + struct s6e3ha2 *ctx; > + int ret; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + mipi_dsi_set_drvdata(dsi, ctx); > + > + ctx->dev = dev; > + > + dsi->lanes = 4; > + dsi->format = MIPI_DSI_FMT_RGB888; > + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; > + > + ctx->supplies[0].supply = "vdd3"; > + ctx->supplies[1].supply = "vci"; > + > + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), > + ctx->supplies); > + if (ret < 0) { > + dev_err(dev, "failed to get regulators: %d\n", ret); > + return ret; > + } > + > + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); > + if (IS_ERR(ctx->reset_gpio)) { > + dev_err(dev, "cannot get reset-gpios %ld\n", > + PTR_ERR(ctx->reset_gpio)); > + return PTR_ERR(ctx->reset_gpio); > + } > + > + ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); > + if (IS_ERR(ctx->enable_gpio)) { > + dev_err(dev, "cannot get enable-gpios %ld\n", > + PTR_ERR(ctx->enable_gpio)); > + return PTR_ERR(ctx->enable_gpio); > + } > + > + ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, > + &s6e3ha2_bl_ops, NULL); > + if (IS_ERR(ctx->bl_dev)) { > + dev_err(dev, "failed to register backlight device\n"); > + return PTR_ERR(ctx->bl_dev); > + } > + > + ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; > + ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; > + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; > + > + drm_panel_init(&ctx->panel); > + ctx->panel.dev = dev; > + ctx->panel.funcs = &s6e3ha2_drm_funcs; > + > + ret = drm_panel_add(&ctx->panel); > + if (ret < 0) > + goto unregister_backlight; > + > + ret = mipi_dsi_attach(dsi); > + if (ret < 0) > + goto remove_panel; > + > + return ret; > + > +remove_panel: > + drm_panel_remove(&ctx->panel); > + > +unregister_backlight: > + backlight_device_unregister(ctx->bl_dev); > + > + return ret; > +} > + > +static int s6e3ha2_remove(struct mipi_dsi_device *dsi) > +{ > + struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); > + > + mipi_dsi_detach(dsi); > + drm_panel_remove(&ctx->panel); > + backlight_device_unregister(ctx->bl_dev); > + > + return 0; > +} > + > +static const struct of_device_id s6e3ha2_of_match[] = { > + { .compatible = "samsung,s6e3ha2" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); > + > +static struct mipi_dsi_driver s6e3ha2_driver = { > + .probe = s6e3ha2_probe, > + .remove = s6e3ha2_remove, > + .driver = { > + .name = "panel-samsung-s6e3ha2", > + .of_match_table = s6e3ha2_of_match, > + }, > +}; > +module_mipi_dsi_driver(s6e3ha2_driver); > + > +MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); > +MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); > +MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); > +MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); > +MODULE_LICENSE("GPL v2"); > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 04.01.2017 09:15, Hoegeun Kwon wrote: > This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel > driver. This panel has 1440x2560 resolution in 5.7-inch physical > panel in the TM2 device. > > Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> > Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com> > Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> > --- > .../bindings/display/panel/samsung,s6e3ha2.txt | 40 ++ > drivers/gpu/drm/panel/Kconfig | 6 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 741 +++++++++++++++++++++ > 4 files changed, 788 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > > diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > new file mode 100644 > index 0000000..6879f51 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > @@ -0,0 +1,40 @@ > +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel > + > +Required properties: > + - compatible: "samsung,s6e3ha2" > + - reg: the virtual channel number of a DSI peripheral > + - vdd3-supply: I/O voltage supply > + - vci-supply: voltage supply for analog circuits > + - reset-gpios: a GPIO spec for the reset pin (active low) > + - enable-gpios: a GPIO spec for the panel enable pin (active high) > + - te-gpios: a GPIO spec for the tearing effect synchronization signal > + gpio pin (active high) > + > +The device node can contain one 'port' child node with one child > +'endpoint' node, according to the bindings defined in [1]. This > +node should describe panel's video bus. > + > +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt > + > +Example: > + > +&dsi { > + ... > + > + panel@0 { > + compatible = "samsung,s6e3ha2"; > + reg = <0>; > + vdd3-supply = <&ldo27_reg>; > + vci-supply = <&ldo28_reg>; > + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; > + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; > + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; > + > + port { > + panel_in: endpoint { > + remote-endpoint = <&dsi_out>; > + }; > + }; > + }; > +}; > + > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 62aba97..eea2902 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -52,6 +52,12 @@ config DRM_PANEL_PANASONIC_VVX10F034N00 > WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some > Xperia Z2 tablets > > +config DRM_PANEL_SAMSUNG_S6E3HA2 > + tristate "Samsung S6E3HA2 DSI video mode panel" > + depends on OF > + depends on DRM_MIPI_DSI Spare space. > + select VIDEOMODE_HELPERS > + > config DRM_PANEL_SAMSUNG_S6E8AA0 > tristate "Samsung S6E8AA0 DSI video mode panel" > depends on OF > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index a5c7ec0..1d483b0 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o > obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o > obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o > obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o > +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o > obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o > obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o > obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o > diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > new file mode 100644 > index 0000000..8c5a1c2 > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > @@ -0,0 +1,741 @@ > +/* > + * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. > + * > + * Copyright (c) 2016 Samsung Electronics Co., Ltd. > + * Donghwa Lee <dh09.lee@samsung.com> > + * Hyungwon Hwang <human.hwang@samsung.com> > + * Hoegeun Kwon <hoegeun.kwon@samsung.com> > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + */ > + > +#include <drm/drmP.h> > +#include <drm/drm_mipi_dsi.h> > +#include <drm/drm_panel.h> > +#include <linux/backlight.h> > +#include <linux/gpio/consumer.h> > +#include <linux/regulator/consumer.h> > + > +#define S6E3HA2_MIN_BRIGHTNESS 0 > +#define S6E3HA2_MAX_BRIGHTNESS 100 > +#define S6E3HA2_DEFAULT_BRIGHTNESS 80 > + > +#define S6E3HA2_NUM_GAMMA_STEPS 46 > +#define S6E3HA2_GAMMA_CMD_CNT 35 > +#define S6E3HA2_VINT_STATUS_MAX 10 > + > +static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, > + 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, > + 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, > + 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, > + 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a, > + 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a, > + 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85, > + 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b, > + 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b, > + 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89, > + 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c, > + 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88, > + 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a, > + 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b, > + 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c, > + 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c, > + 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, > + 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, > + 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b, > + 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e, > + 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e, > + 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d, > + 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c, > + 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83, > + 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a, > + 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83, > + 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a, > + 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83, > + 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89, > + 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83, > + 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a, > + 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82, > + 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87, > + 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82, > + 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88, > + 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83, > + 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89, > + 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82, > + 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86, > + 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82, > + 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87, > + 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81, > + 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86, > + 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82, > + 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83, > + 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82, > + 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82, > + 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, > + 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, > + 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, > + 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, > + 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, > + 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, > + 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, > + 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, > + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, > + 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, > + 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, > + 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, > + 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, > + 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, > + 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, > + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, > + 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, > + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 } > +}; > + > +unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { > + 0x18, 0x19, 0x1a, 0x1b, 0x1c, > + 0x1d, 0x1e, 0x1f, 0x20, 0x21 > +}; > + > +struct s6e3ha2 { > + struct device *dev; > + struct drm_panel panel; > + struct backlight_device *bl_dev; > + > + struct regulator_bulk_data supplies[2]; > + struct gpio_desc *reset_gpio; > + struct gpio_desc *enable_gpio; > + > + /* This field is tested by functions directly accessing DSI bus before > + * transfer, transfer is skipped if it is set. In case of transfer > + * failure or unexpected response the field is set to error value. > + * Such construct allows to eliminate many checks in higher level > + * functions. > + */ > + int error; > +}; > + > +static int s6e3ha2_clear_error(struct s6e3ha2 *ctx) > +{ > + int ret = ctx->error; > + > + ctx->error = 0; > + return ret; > +} > + > +static void s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) > +{ > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + ssize_t ret; > + > + if (ctx->error < 0) > + return; > + > + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); > + if (ret < 0) { > + dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", > + ret, (int)len, data); > + ctx->error = ret; > + } > +} > + > +#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ > + static const u8 d[] = { seq }; \ > + s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ > +} while (0) > + > +static void s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); > +} > + > +static void s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); > +} > + > +static void s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); > +} > + > +static void s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); > +} > + > +static void s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); > + s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); > +} > + > +static void s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); > + s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, > + 0x40, 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5); > +} > + > +static void s6e3ha2_aor_control(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); > +} > + > +static void s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); > +} > + > +static void s6e3ha2_acl_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); > +} > + > +static void s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); > +} > + > +static void s6e3ha2_test_global(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); > +} > + > +static void s6e3ha2_test(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); > +} > + > +static void s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, > + 0xbd, 0x33, 0x11, 0x02, 0x16, 0x02, 0x16); > +} > + > +static void s6e3ha2_pentile_control(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); > +} > + > +static void s6e3ha2_poc_global(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); > +} > + > +static void s6e3ha2_poc_setting(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); > +} > + > +static void s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); > +} > + > +static void s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); > +} > + > +static void s6e3ha2_hbm_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); > +} > + > +static void s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); > +} > + > +static void s6e3ha2_gamma_update(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); > + ndelay(100); /* need for 100ns delay */ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); > +} > + > +static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) > +{ > + return bl_dev->props.brightness; > +} > + > +static void s6e3ha2_set_vint(struct s6e3ha2 *ctx) > +{ > + struct backlight_device *bl_dev = ctx->bl_dev; > + unsigned int brightness = bl_dev->props.brightness; > + unsigned char data[] = { 0xf4, 0x8b, > + vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / > + S6E3HA2_MAX_BRIGHTNESS] }; > + > + s6e3ha2_dcs_write(ctx, data, 3); It would be safer/cleaner to use sizeof(data) or ARRAY_SIZE(data) instead of 3 here. > +} > + > +static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) > +{ > + return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / > + S6E3HA2_MAX_BRIGHTNESS; > +} > + > +static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) > +{ > + struct backlight_device *bl_dev = ctx->bl_dev; > + unsigned int index = s6e3ha2_get_brightness_index(brightness); > + u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; > + > + memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); > + s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); > + > + s6e3ha2_gamma_update(ctx); > + bl_dev->props.brightness = brightness; > + > + return 0; > +} > + > +static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) > +{ > + struct s6e3ha2 *ctx = (struct s6e3ha2 *)bl_get_data(bl_dev); I think explicit casting is not necessary here. > + unsigned int brightness = bl_dev->props.brightness; > + > + if (brightness < S6E3HA2_MIN_BRIGHTNESS || > + brightness > bl_dev->props.max_brightness) { > + dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); > + return -EINVAL; > + } > + > + if (bl_dev->props.power > FB_BLANK_NORMAL) > + return -EPERM; > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_update_gamma(ctx, brightness); > + s6e3ha2_aor_control(ctx); > + s6e3ha2_set_vint(ctx); > + s6e3ha2_test_key_off_f0(ctx); > + > + return ctx->error; > +} > + > +static const struct backlight_ops s6e3ha2_bl_ops = { > + .get_brightness = s6e3ha2_get_brightness, > + .update_status = s6e3ha2_set_brightness, > +}; > + > +static void s6e3ha2_panel_init(struct s6e3ha2 *ctx) > +{ > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + mipi_dsi_dcs_exit_sleep_mode(dsi); > + usleep_range(5000, 6000); > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_single_dsi_set(ctx); > + s6e3ha2_test_key_on_fc(ctx); > + s6e3ha2_freq_calibration(ctx); > + s6e3ha2_test_key_off_fc(ctx); > + s6e3ha2_test_key_off_f0(ctx); > +} > + > +static int s6e3ha2_power_off(struct s6e3ha2 *ctx) > +{ > + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > +} > + > +static int s6e3ha2_disable(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + mipi_dsi_dcs_enter_sleep_mode(dsi); > + if (ctx->error != 0) > + goto err; > + > + mipi_dsi_dcs_set_display_off(dsi); > + if (ctx->error != 0) > + goto err; Both mipi* functions are external functions, you should check return value instead of ctx->error. > + > + msleep(40); > + ctx->bl_dev->props.power = FB_BLANK_NORMAL; > + > + return 0; > +err: > + return ctx->error; > +} > + > +static int s6e3ha2_unprepare(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + int ret; > + > + ret = s6e3ha2_clear_error(ctx); > + if (!ret) > + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; > + > + return s6e3ha2_power_off(ctx); > +} > + > +static int s6e3ha2_power_on(struct s6e3ha2 *ctx) > +{ > + int ret; > + > + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > + if (ret < 0) > + return ret; > + > + msleep(120); > + > + gpiod_set_value(ctx->enable_gpio, 0); > + usleep_range(5000, 6000); > + gpiod_set_value(ctx->enable_gpio, 1); > + > + gpiod_set_value(ctx->reset_gpio, 1); > + usleep_range(5000, 6000); > + gpiod_set_value(ctx->reset_gpio, 0); > + usleep_range(5000, 6000); > + > + return 0; > +} > +static int s6e3ha2_prepare(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + int ret; > + > + ret = s6e3ha2_power_on(ctx); > + if (ret < 0) > + return ret; > + > + s6e3ha2_panel_init(ctx); > + > + ret = s6e3ha2_clear_error(ctx); > + if (ret < 0) { > + s6e3ha2_power_off(ctx); > + return ret; > + } > + > + ctx->bl_dev->props.power = FB_BLANK_NORMAL; > + > + return 0; > +} > + > +static int s6e3ha2_enable(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + /* common setting */ > + mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_test_key_on_fc(ctx); > + s6e3ha2_touch_hsync_on1(ctx); > + s6e3ha2_pentile_control(ctx); > + s6e3ha2_poc_global(ctx); > + s6e3ha2_poc_setting(ctx); > + s6e3ha2_test_key_off_fc(ctx); > + > + /* pcd setting off for TB */ > + s6e3ha2_pcd_set_off(ctx); > + s6e3ha2_err_fg_set(ctx); > + s6e3ha2_te_start_setting(ctx); > + > + /* brightness setting */ > + s6e3ha2_set_brightness(ctx->bl_dev); > + s6e3ha2_aor_control(ctx); > + s6e3ha2_caps_elvss_set(ctx); > + s6e3ha2_gamma_update(ctx); > + s6e3ha2_acl_off(ctx); > + s6e3ha2_acl_off_opr(ctx); > + s6e3ha2_hbm_off(ctx); > + > + /* elvss temp compensation */ > + s6e3ha2_test_global(ctx); > + s6e3ha2_test(ctx); > + s6e3ha2_test_key_off_f0(ctx); > + > + mipi_dsi_dcs_set_display_on(dsi); > + if (ctx->error != 0) > + return ctx->error; > + > + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; > + > + return 0; > +} > + > +static const struct drm_display_mode default_mode = { > + .clock = 14874, > + .hdisplay = 1440, > + .hsync_start = 1440 + 1, > + .hsync_end = 1440 + 1 + 1, > + .htotal = 1440 + 1 + 1 + 1, > + .vdisplay = 2560, > + .vsync_start = 2560 + 1, > + .vsync_end = 2560 + 1 + 1, > + .vtotal = 2560 + 1 + 1 + 15, > + .vrefresh = 60, Below equation should be true: clock * 1000 == vtotal * htotal * vrefresh It is not. I think clock should be adjusted, another thing is that in case of this panel vrefresh is little below 60Hz, modetest shows about 59.8, if I remember correctly. So clock should be 1443*2577*59.8 / 1000 = 222372. > + .flags = 0, > +}; > + > +static int s6e3ha2_get_modes(struct drm_panel *panel) > +{ > + struct drm_connector *connector = panel->connector; > + struct drm_display_mode *mode; > + > + mode = drm_mode_duplicate(panel->drm, &default_mode); > + if (!mode) { > + DRM_ERROR("failed to create a new display mode\n"); > + DRM_ERROR("failed to add mode %ux%ux@%u\n", > + default_mode.hdisplay, default_mode.vdisplay, > + default_mode.vrefresh); I think 1st DRM_ERROR could be dropped. I think 2nd one also, as allocator will dump stack in case of failure. Regards Andrzej > + return -ENOMEM; > + } > + > + drm_mode_set_name(mode); > + > + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; > + drm_mode_probed_add(connector, mode); > + > + connector->display_info.width_mm = 71; > + connector->display_info.height_mm = 125; > + > + return 1; > +} > + > +static const struct drm_panel_funcs s6e3ha2_drm_funcs = { > + .disable = s6e3ha2_disable, > + .unprepare = s6e3ha2_unprepare, > + .prepare = s6e3ha2_prepare, > + .enable = s6e3ha2_enable, > + .get_modes = s6e3ha2_get_modes, > +}; > + > +static int s6e3ha2_probe(struct mipi_dsi_device *dsi) > +{ > + struct device *dev = &dsi->dev; > + struct s6e3ha2 *ctx; > + int ret; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + mipi_dsi_set_drvdata(dsi, ctx); > + > + ctx->dev = dev; > + > + dsi->lanes = 4; > + dsi->format = MIPI_DSI_FMT_RGB888; > + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; > + > + ctx->supplies[0].supply = "vdd3"; > + ctx->supplies[1].supply = "vci"; > + > + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), > + ctx->supplies); > + if (ret < 0) { > + dev_err(dev, "failed to get regulators: %d\n", ret); > + return ret; > + } > + > + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); > + if (IS_ERR(ctx->reset_gpio)) { > + dev_err(dev, "cannot get reset-gpios %ld\n", > + PTR_ERR(ctx->reset_gpio)); > + return PTR_ERR(ctx->reset_gpio); > + } > + > + ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); > + if (IS_ERR(ctx->enable_gpio)) { > + dev_err(dev, "cannot get enable-gpios %ld\n", > + PTR_ERR(ctx->enable_gpio)); > + return PTR_ERR(ctx->enable_gpio); > + } > + > + ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, > + &s6e3ha2_bl_ops, NULL); > + if (IS_ERR(ctx->bl_dev)) { > + dev_err(dev, "failed to register backlight device\n"); > + return PTR_ERR(ctx->bl_dev); > + } > + > + ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; > + ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; > + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; > + > + drm_panel_init(&ctx->panel); > + ctx->panel.dev = dev; > + ctx->panel.funcs = &s6e3ha2_drm_funcs; > + > + ret = drm_panel_add(&ctx->panel); > + if (ret < 0) > + goto unregister_backlight; > + > + ret = mipi_dsi_attach(dsi); > + if (ret < 0) > + goto remove_panel; > + > + return ret; > + > +remove_panel: > + drm_panel_remove(&ctx->panel); > + > +unregister_backlight: > + backlight_device_unregister(ctx->bl_dev); > + > + return ret; > +} > + > +static int s6e3ha2_remove(struct mipi_dsi_device *dsi) > +{ > + struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); > + > + mipi_dsi_detach(dsi); > + drm_panel_remove(&ctx->panel); > + backlight_device_unregister(ctx->bl_dev); > + > + return 0; > +} > + > +static const struct of_device_id s6e3ha2_of_match[] = { > + { .compatible = "samsung,s6e3ha2" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); > + > +static struct mipi_dsi_driver s6e3ha2_driver = { > + .probe = s6e3ha2_probe, > + .remove = s6e3ha2_remove, > + .driver = { > + .name = "panel-samsung-s6e3ha2", > + .of_match_table = s6e3ha2_of_match, > + }, > +}; > +module_mipi_dsi_driver(s6e3ha2_driver); > + > +MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); > +MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); > +MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); > +MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); > +MODULE_LICENSE("GPL v2"); -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, Jan 04, 2017 at 05:15:10PM +0900, Hoegeun Kwon wrote: > This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel > driver. This panel has 1440x2560 resolution in 5.7-inch physical > panel in the TM2 device. > > Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> > Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com> > Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> > --- > .../bindings/display/panel/samsung,s6e3ha2.txt | 40 ++ > drivers/gpu/drm/panel/Kconfig | 6 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 741 +++++++++++++++++++++ > 4 files changed, 788 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > > diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > new file mode 100644 > index 0000000..6879f51 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > @@ -0,0 +1,40 @@ > +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel > + > +Required properties: > + - compatible: "samsung,s6e3ha2" > + - reg: the virtual channel number of a DSI peripheral > + - vdd3-supply: I/O voltage supply > + - vci-supply: voltage supply for analog circuits > + - reset-gpios: a GPIO spec for the reset pin (active low) > + - enable-gpios: a GPIO spec for the panel enable pin (active high) > + - te-gpios: a GPIO spec for the tearing effect synchronization signal > + gpio pin (active high) > + > +The device node can contain one 'port' child node with one child > +'endpoint' node, according to the bindings defined in [1]. This > +node should describe panel's video bus. > + > +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt > + > +Example: > + > +&dsi { > + ... > + > + panel@0 { > + compatible = "samsung,s6e3ha2"; > + reg = <0>; > + vdd3-supply = <&ldo27_reg>; > + vci-supply = <&ldo28_reg>; > + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; > + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; > + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; > + > + port { > + panel_in: endpoint { > + remote-endpoint = <&dsi_out>; As I said previously, it makes no sense to have a graph to dsi_out it is simply the parent node. > + }; > + }; > + }; > +}; > + -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 04.01.2017 15:44, Rob Herring wrote: > On Wed, Jan 04, 2017 at 05:15:10PM +0900, Hoegeun Kwon wrote: >> This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel >> driver. This panel has 1440x2560 resolution in 5.7-inch physical >> panel in the TM2 device. >> >> Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> >> Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com> >> Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> >> --- >> .../bindings/display/panel/samsung,s6e3ha2.txt | 40 ++ >> drivers/gpu/drm/panel/Kconfig | 6 + >> drivers/gpu/drm/panel/Makefile | 1 + >> drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 741 +++++++++++++++++++++ >> 4 files changed, 788 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt >> create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c >> >> diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt >> new file mode 100644 >> index 0000000..6879f51 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt >> @@ -0,0 +1,40 @@ >> +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel >> + >> +Required properties: >> + - compatible: "samsung,s6e3ha2" >> + - reg: the virtual channel number of a DSI peripheral >> + - vdd3-supply: I/O voltage supply >> + - vci-supply: voltage supply for analog circuits >> + - reset-gpios: a GPIO spec for the reset pin (active low) >> + - enable-gpios: a GPIO spec for the panel enable pin (active high) >> + - te-gpios: a GPIO spec for the tearing effect synchronization signal >> + gpio pin (active high) >> + >> +The device node can contain one 'port' child node with one child >> +'endpoint' node, according to the bindings defined in [1]. This >> +node should describe panel's video bus. >> + >> +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt >> + >> +Example: >> + >> +&dsi { >> + ... >> + >> + panel@0 { >> + compatible = "samsung,s6e3ha2"; >> + reg = <0>; >> + vdd3-supply = <&ldo27_reg>; >> + vci-supply = <&ldo28_reg>; >> + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; >> + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; >> + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; >> + >> + port { >> + panel_in: endpoint { >> + remote-endpoint = <&dsi_out>; > As I said previously, it makes no sense to have a graph to dsi_out it is > simply the parent node. The problem is that exynos_dsi requires presence of endpoint node, when it was written the policy was that graphs must be always present. DSI reads from this node samsung,burst-clock-frequency and samsung,esc-clock-frequency. For example in exynos4412-trats2.dts: > dsi_0: dsi@11C80000 { > ... > ports { > #address-cells = <1>; > #size-cells = <0>; > > port@1 { > reg = <1>; > > dsi_out: endpoint { > remote-endpoint = <&dsi_in>; > samsung,burst-clock-frequency > = <500000000>; > samsung,esc-clock-frequency = > <20000000>; > }; > }; > }; > > panel@0 { > ... > port { > dsi_in: endpoint { > remote-endpoint = <&dsi_out>; > }; > }; > }; > }; However, DSI driver does not use remote-endpoint property, it is here only to fulfill of_graph policy. So if something like below is acceptable, we can get rid of port node in panel: > dsi_0: dsi@11C80000 { > ... > ports { > #address-cells = <1>; > #size-cells = <0>; > > port@1 { > reg = <1>; > > dsi_out: endpoint { > samsung,burst-clock-frequency > = <500000000>; > samsung,esc-clock-frequency = > <20000000>; > }; > }; > }; > > panel@0 { > ... > }; > }; What do you think? Other solution is to move problematic properties somewhere else, but this require change of bindings. Anyway I would be glad to remove port nodes in other samsung panels: s6e8aa0, ld9040. Regards Andrzej -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
2017년 01월 05일 15:55에 Andrzej Hajda 이(가) 쓴 글: > On 04.01.2017 15:44, Rob Herring wrote: >> On Wed, Jan 04, 2017 at 05:15:10PM +0900, Hoegeun Kwon wrote: >>> This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel >>> driver. This panel has 1440x2560 resolution in 5.7-inch physical >>> panel in the TM2 device. >>> >>> Signed-off-by: Donghwa Lee <dh09.lee@samsung.com> >>> Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com> >>> Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> >>> --- >>> .../bindings/display/panel/samsung,s6e3ha2.txt | 40 ++ >>> drivers/gpu/drm/panel/Kconfig | 6 + >>> drivers/gpu/drm/panel/Makefile | 1 + >>> drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 741 +++++++++++++++++++++ >>> 4 files changed, 788 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt >>> create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c >>> >>> diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt >>> new file mode 100644 >>> index 0000000..6879f51 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt >>> @@ -0,0 +1,40 @@ >>> +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel >>> + >>> +Required properties: >>> + - compatible: "samsung,s6e3ha2" >>> + - reg: the virtual channel number of a DSI peripheral >>> + - vdd3-supply: I/O voltage supply >>> + - vci-supply: voltage supply for analog circuits >>> + - reset-gpios: a GPIO spec for the reset pin (active low) >>> + - enable-gpios: a GPIO spec for the panel enable pin (active high) >>> + - te-gpios: a GPIO spec for the tearing effect synchronization signal >>> + gpio pin (active high) >>> + >>> +The device node can contain one 'port' child node with one child >>> +'endpoint' node, according to the bindings defined in [1]. This >>> +node should describe panel's video bus. >>> + >>> +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt >>> + >>> +Example: >>> + >>> +&dsi { >>> + ... >>> + >>> + panel@0 { >>> + compatible = "samsung,s6e3ha2"; >>> + reg = <0>; >>> + vdd3-supply = <&ldo27_reg>; >>> + vci-supply = <&ldo28_reg>; >>> + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; >>> + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; >>> + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; >>> + >>> + port { >>> + panel_in: endpoint { >>> + remote-endpoint = <&dsi_out>; >> As I said previously, it makes no sense to have a graph to dsi_out it is >> simply the parent node. > > The problem is that exynos_dsi requires presence of endpoint node, when > it was written the policy was that graphs must be always present. > DSI reads from this node samsung,burst-clock-frequency and > samsung,esc-clock-frequency. For example in exynos4412-trats2.dts: > >> dsi_0: dsi@11C80000 { >> ... >> ports { >> #address-cells = <1>; >> #size-cells = <0>; >> >> port@1 { >> reg = <1>; >> >> dsi_out: endpoint { >> remote-endpoint = <&dsi_in>; >> samsung,burst-clock-frequency >> = <500000000>; >> samsung,esc-clock-frequency = >> <20000000>; >> }; >> }; >> }; >> >> panel@0 { >> ... >> port { >> dsi_in: endpoint { >> remote-endpoint = <&dsi_out>; >> }; >> }; >> }; >> }; > > However, DSI driver does not use remote-endpoint property, it is here > only to fulfill of_graph policy. > So if something like below is acceptable, we can get rid of port node in > panel: > >> dsi_0: dsi@11C80000 { >> ... >> ports { >> #address-cells = <1>; >> #size-cells = <0>; >> >> port@1 { >> reg = <1>; >> >> dsi_out: endpoint { >> samsung,burst-clock-frequency >> = <500000000>; >> samsung,esc-clock-frequency = >> <20000000>; >> }; >> }; >> }; >> >> panel@0 { >> ... >> }; >> }; > > What do you think? > > Other solution is to move problematic properties somewhere else, but > this require change of bindings. > Anyway I would be glad to remove port nodes in other samsung panels: > s6e8aa0, ld9040. In addition, Now dsi and mic device nodes of exynos5433.dtsi include remote nodes which define Display pipeline. This is wrong. Display pipeline is specific to board, not SoC so these things should be moved to exynos5433-tm2.dts file. Hoegeun, you can do this with other patch also. Thanks. > > Regards > Andrzej > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt new file mode 100644 index 0000000..6879f51 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt @@ -0,0 +1,40 @@ +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel + +Required properties: + - compatible: "samsung,s6e3ha2" + - reg: the virtual channel number of a DSI peripheral + - vdd3-supply: I/O voltage supply + - vci-supply: voltage supply for analog circuits + - reset-gpios: a GPIO spec for the reset pin (active low) + - enable-gpios: a GPIO spec for the panel enable pin (active high) + - te-gpios: a GPIO spec for the tearing effect synchronization signal + gpio pin (active high) + +The device node can contain one 'port' child node with one child +'endpoint' node, according to the bindings defined in [1]. This +node should describe panel's video bus. + +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt + +Example: + +&dsi { + ... + + panel@0 { + compatible = "samsung,s6e3ha2"; + reg = <0>; + vdd3-supply = <&ldo27_reg>; + vci-supply = <&ldo28_reg>; + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; + + port { + panel_in: endpoint { + remote-endpoint = <&dsi_out>; + }; + }; + }; +}; + diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 62aba97..eea2902 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -52,6 +52,12 @@ config DRM_PANEL_PANASONIC_VVX10F034N00 WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some Xperia Z2 tablets +config DRM_PANEL_SAMSUNG_S6E3HA2 + tristate "Samsung S6E3HA2 DSI video mode panel" + depends on OF + depends on DRM_MIPI_DSI + select VIDEOMODE_HELPERS + config DRM_PANEL_SAMSUNG_S6E8AA0 tristate "Samsung S6E8AA0 DSI video mode panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index a5c7ec0..1d483b0 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c new file mode 100644 index 0000000..8c5a1c2 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c @@ -0,0 +1,741 @@ +/* + * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. + * + * Copyright (c) 2016 Samsung Electronics Co., Ltd. + * Donghwa Lee <dh09.lee@samsung.com> + * Hyungwon Hwang <human.hwang@samsung.com> + * Hoegeun Kwon <hoegeun.kwon@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <drm/drmP.h> +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_panel.h> +#include <linux/backlight.h> +#include <linux/gpio/consumer.h> +#include <linux/regulator/consumer.h> + +#define S6E3HA2_MIN_BRIGHTNESS 0 +#define S6E3HA2_MAX_BRIGHTNESS 100 +#define S6E3HA2_DEFAULT_BRIGHTNESS 80 + +#define S6E3HA2_NUM_GAMMA_STEPS 46 +#define S6E3HA2_GAMMA_CMD_CNT 35 +#define S6E3HA2_VINT_STATUS_MAX 10 + +static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { + 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0x83, 0x82, 0x84, 0x82, + 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, + 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, + 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, + 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, + 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, + 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, + 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, + 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, + 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, + 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, + 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, + 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, + 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, + 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, + 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, + 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 }, + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, + 0x00, 0x00 } +}; + +unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { + 0x18, 0x19, 0x1a, 0x1b, 0x1c, + 0x1d, 0x1e, 0x1f, 0x20, 0x21 +}; + +struct s6e3ha2 { + struct device *dev; + struct drm_panel panel; + struct backlight_device *bl_dev; + + struct regulator_bulk_data supplies[2]; + struct gpio_desc *reset_gpio; + struct gpio_desc *enable_gpio; + + /* This field is tested by functions directly accessing DSI bus before + * transfer, transfer is skipped if it is set. In case of transfer + * failure or unexpected response the field is set to error value. + * Such construct allows to eliminate many checks in higher level + * functions. + */ + int error; +}; + +static int s6e3ha2_clear_error(struct s6e3ha2 *ctx) +{ + int ret = ctx->error; + + ctx->error = 0; + return ret; +} + +static void s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + ssize_t ret; + + if (ctx->error < 0) + return; + + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); + if (ret < 0) { + dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", + ret, (int)len, data); + ctx->error = ret; + } +} + +#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ + static const u8 d[] = { seq }; \ + s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ +} while (0) + +static void s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); +} + +static void s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); +} + +static void s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); +} + +static void s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); +} + +static void s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); + s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); +} + +static void s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); + s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, + 0x40, 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5); +} + +static void s6e3ha2_aor_control(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); +} + +static void s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); +} + +static void s6e3ha2_acl_off(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); +} + +static void s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); +} + +static void s6e3ha2_test_global(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); +} + +static void s6e3ha2_test(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); +} + +static void s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, + 0xbd, 0x33, 0x11, 0x02, 0x16, 0x02, 0x16); +} + +static void s6e3ha2_pentile_control(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); +} + +static void s6e3ha2_poc_global(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); +} + +static void s6e3ha2_poc_setting(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); +} + +static void s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); +} + +static void s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); +} + +static void s6e3ha2_hbm_off(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); +} + +static void s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); +} + +static void s6e3ha2_gamma_update(struct s6e3ha2 *ctx) +{ + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); + ndelay(100); /* need for 100ns delay */ + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); +} + +static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) +{ + return bl_dev->props.brightness; +} + +static void s6e3ha2_set_vint(struct s6e3ha2 *ctx) +{ + struct backlight_device *bl_dev = ctx->bl_dev; + unsigned int brightness = bl_dev->props.brightness; + unsigned char data[] = { 0xf4, 0x8b, + vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / + S6E3HA2_MAX_BRIGHTNESS] }; + + s6e3ha2_dcs_write(ctx, data, 3); +} + +static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) +{ + return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / + S6E3HA2_MAX_BRIGHTNESS; +} + +static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) +{ + struct backlight_device *bl_dev = ctx->bl_dev; + unsigned int index = s6e3ha2_get_brightness_index(brightness); + u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; + + memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); + s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); + + s6e3ha2_gamma_update(ctx); + bl_dev->props.brightness = brightness; + + return 0; +} + +static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) +{ + struct s6e3ha2 *ctx = (struct s6e3ha2 *)bl_get_data(bl_dev); + unsigned int brightness = bl_dev->props.brightness; + + if (brightness < S6E3HA2_MIN_BRIGHTNESS || + brightness > bl_dev->props.max_brightness) { + dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); + return -EINVAL; + } + + if (bl_dev->props.power > FB_BLANK_NORMAL) + return -EPERM; + + s6e3ha2_test_key_on_f0(ctx); + s6e3ha2_update_gamma(ctx, brightness); + s6e3ha2_aor_control(ctx); + s6e3ha2_set_vint(ctx); + s6e3ha2_test_key_off_f0(ctx); + + return ctx->error; +} + +static const struct backlight_ops s6e3ha2_bl_ops = { + .get_brightness = s6e3ha2_get_brightness, + .update_status = s6e3ha2_set_brightness, +}; + +static void s6e3ha2_panel_init(struct s6e3ha2 *ctx) +{ + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + + mipi_dsi_dcs_exit_sleep_mode(dsi); + usleep_range(5000, 6000); + + s6e3ha2_test_key_on_f0(ctx); + s6e3ha2_single_dsi_set(ctx); + s6e3ha2_test_key_on_fc(ctx); + s6e3ha2_freq_calibration(ctx); + s6e3ha2_test_key_off_fc(ctx); + s6e3ha2_test_key_off_f0(ctx); +} + +static int s6e3ha2_power_off(struct s6e3ha2 *ctx) +{ + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static int s6e3ha2_disable(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + + mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ctx->error != 0) + goto err; + + mipi_dsi_dcs_set_display_off(dsi); + if (ctx->error != 0) + goto err; + + msleep(40); + ctx->bl_dev->props.power = FB_BLANK_NORMAL; + + return 0; +err: + return ctx->error; +} + +static int s6e3ha2_unprepare(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + int ret; + + ret = s6e3ha2_clear_error(ctx); + if (!ret) + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + + return s6e3ha2_power_off(ctx); +} + +static int s6e3ha2_power_on(struct s6e3ha2 *ctx) +{ + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) + return ret; + + msleep(120); + + gpiod_set_value(ctx->enable_gpio, 0); + usleep_range(5000, 6000); + gpiod_set_value(ctx->enable_gpio, 1); + + gpiod_set_value(ctx->reset_gpio, 1); + usleep_range(5000, 6000); + gpiod_set_value(ctx->reset_gpio, 0); + usleep_range(5000, 6000); + + return 0; +} +static int s6e3ha2_prepare(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + int ret; + + ret = s6e3ha2_power_on(ctx); + if (ret < 0) + return ret; + + s6e3ha2_panel_init(ctx); + + ret = s6e3ha2_clear_error(ctx); + if (ret < 0) { + s6e3ha2_power_off(ctx); + return ret; + } + + ctx->bl_dev->props.power = FB_BLANK_NORMAL; + + return 0; +} + +static int s6e3ha2_enable(struct drm_panel *panel) +{ + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); + + /* common setting */ + mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); + + s6e3ha2_test_key_on_f0(ctx); + s6e3ha2_test_key_on_fc(ctx); + s6e3ha2_touch_hsync_on1(ctx); + s6e3ha2_pentile_control(ctx); + s6e3ha2_poc_global(ctx); + s6e3ha2_poc_setting(ctx); + s6e3ha2_test_key_off_fc(ctx); + + /* pcd setting off for TB */ + s6e3ha2_pcd_set_off(ctx); + s6e3ha2_err_fg_set(ctx); + s6e3ha2_te_start_setting(ctx); + + /* brightness setting */ + s6e3ha2_set_brightness(ctx->bl_dev); + s6e3ha2_aor_control(ctx); + s6e3ha2_caps_elvss_set(ctx); + s6e3ha2_gamma_update(ctx); + s6e3ha2_acl_off(ctx); + s6e3ha2_acl_off_opr(ctx); + s6e3ha2_hbm_off(ctx); + + /* elvss temp compensation */ + s6e3ha2_test_global(ctx); + s6e3ha2_test(ctx); + s6e3ha2_test_key_off_f0(ctx); + + mipi_dsi_dcs_set_display_on(dsi); + if (ctx->error != 0) + return ctx->error; + + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; + + return 0; +} + +static const struct drm_display_mode default_mode = { + .clock = 14874, + .hdisplay = 1440, + .hsync_start = 1440 + 1, + .hsync_end = 1440 + 1 + 1, + .htotal = 1440 + 1 + 1 + 1, + .vdisplay = 2560, + .vsync_start = 2560 + 1, + .vsync_end = 2560 + 1 + 1, + .vtotal = 2560 + 1 + 1 + 15, + .vrefresh = 60, + .flags = 0, +}; + +static int s6e3ha2_get_modes(struct drm_panel *panel) +{ + struct drm_connector *connector = panel->connector; + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(panel->drm, &default_mode); + if (!mode) { + DRM_ERROR("failed to create a new display mode\n"); + DRM_ERROR("failed to add mode %ux%ux@%u\n", + default_mode.hdisplay, default_mode.vdisplay, + default_mode.vrefresh); + return -ENOMEM; + } + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + + connector->display_info.width_mm = 71; + connector->display_info.height_mm = 125; + + return 1; +} + +static const struct drm_panel_funcs s6e3ha2_drm_funcs = { + .disable = s6e3ha2_disable, + .unprepare = s6e3ha2_unprepare, + .prepare = s6e3ha2_prepare, + .enable = s6e3ha2_enable, + .get_modes = s6e3ha2_get_modes, +}; + +static int s6e3ha2_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct s6e3ha2 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + mipi_dsi_set_drvdata(dsi, ctx); + + ctx->dev = dev; + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; + + ctx->supplies[0].supply = "vdd3"; + ctx->supplies[1].supply = "vci"; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) { + dev_err(dev, "failed to get regulators: %d\n", ret); + return ret; + } + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset_gpio)) { + dev_err(dev, "cannot get reset-gpios %ld\n", + PTR_ERR(ctx->reset_gpio)); + return PTR_ERR(ctx->reset_gpio); + } + + ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->enable_gpio)) { + dev_err(dev, "cannot get enable-gpios %ld\n", + PTR_ERR(ctx->enable_gpio)); + return PTR_ERR(ctx->enable_gpio); + } + + ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, + &s6e3ha2_bl_ops, NULL); + if (IS_ERR(ctx->bl_dev)) { + dev_err(dev, "failed to register backlight device\n"); + return PTR_ERR(ctx->bl_dev); + } + + ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; + ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; + + drm_panel_init(&ctx->panel); + ctx->panel.dev = dev; + ctx->panel.funcs = &s6e3ha2_drm_funcs; + + ret = drm_panel_add(&ctx->panel); + if (ret < 0) + goto unregister_backlight; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) + goto remove_panel; + + return ret; + +remove_panel: + drm_panel_remove(&ctx->panel); + +unregister_backlight: + backlight_device_unregister(ctx->bl_dev); + + return ret; +} + +static int s6e3ha2_remove(struct mipi_dsi_device *dsi) +{ + struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(dsi); + drm_panel_remove(&ctx->panel); + backlight_device_unregister(ctx->bl_dev); + + return 0; +} + +static const struct of_device_id s6e3ha2_of_match[] = { + { .compatible = "samsung,s6e3ha2" }, + { } +}; +MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); + +static struct mipi_dsi_driver s6e3ha2_driver = { + .probe = s6e3ha2_probe, + .remove = s6e3ha2_remove, + .driver = { + .name = "panel-samsung-s6e3ha2", + .of_match_table = s6e3ha2_of_match, + }, +}; +module_mipi_dsi_driver(s6e3ha2_driver); + +MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>"); +MODULE_AUTHOR("Hyungwon Hwang <human.hwang@samsung.com>"); +MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@samsung.com>"); +MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); +MODULE_LICENSE("GPL v2");