drm/bridge: Add I2C based driver for ps8622/ps8625 bridge
This patch adds drm_bridge driver for parade DisplayPort to LVDS bridge chip. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Tested-by: Rahul Sharma <rahul.sharma@samsung.com> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Tested-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> [treding@nvidia.com: break cyclic dependency, add KMS helper dependency] Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Vincent Palatin
Thierry Reding
parent
c517d838eb
commit
b2ea877279
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@ -11,3 +11,14 @@ config DRM_PTN3460
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select DRM_PANEL
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---help---
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ptn3460 eDP-LVDS bridge chip driver.
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config DRM_PS8622
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tristate "Parade eDP/LVDS bridge"
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depends on DRM
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depends on OF
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select DRM_PANEL
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select DRM_KMS_HELPER
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select BACKLIGHT_LCD_SUPPORT
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select BACKLIGHT_CLASS_DEVICE
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---help---
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parade eDP-LVDS bridge chip driver.
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@ -1,4 +1,5 @@
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ccflags-y := -Iinclude/drm
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obj-$(CONFIG_DRM_PS8622) += ps8622.o
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obj-$(CONFIG_DRM_PTN3460) += ptn3460.o
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obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
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@ -0,0 +1,684 @@
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/*
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* Parade PS8622 eDP/LVDS bridge driver
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*
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* Copyright (C) 2014 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/backlight.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/fb.h>
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#include <linux/gpio.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_graph.h>
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#include <linux/pm.h>
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#include <linux/regulator/consumer.h>
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#include <drm/drm_panel.h>
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#include "drmP.h"
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#include "drm_crtc.h"
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#include "drm_crtc_helper.h"
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/* Brightness scale on the Parade chip */
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#define PS8622_MAX_BRIGHTNESS 0xff
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/* Timings taken from the version 1.7 datasheet for the PS8622/PS8625 */
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#define PS8622_POWER_RISE_T1_MIN_US 10
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#define PS8622_POWER_RISE_T1_MAX_US 10000
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#define PS8622_RST_HIGH_T2_MIN_US 3000
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#define PS8622_RST_HIGH_T2_MAX_US 30000
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#define PS8622_PWMO_END_T12_MS 200
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#define PS8622_POWER_FALL_T16_MAX_US 10000
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#define PS8622_POWER_OFF_T17_MS 500
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#if ((PS8622_RST_HIGH_T2_MIN_US + PS8622_POWER_RISE_T1_MAX_US) > \
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(PS8622_RST_HIGH_T2_MAX_US + PS8622_POWER_RISE_T1_MIN_US))
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#error "T2.min + T1.max must be less than T2.max + T1.min"
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#endif
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struct ps8622_bridge {
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struct drm_connector connector;
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struct i2c_client *client;
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struct drm_bridge bridge;
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struct drm_panel *panel;
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struct regulator *v12;
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struct backlight_device *bl;
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struct gpio_desc *gpio_slp;
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struct gpio_desc *gpio_rst;
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u32 max_lane_count;
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u32 lane_count;
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bool enabled;
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};
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static inline struct ps8622_bridge *
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bridge_to_ps8622(struct drm_bridge *bridge)
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{
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return container_of(bridge, struct ps8622_bridge, bridge);
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}
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static inline struct ps8622_bridge *
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connector_to_ps8622(struct drm_connector *connector)
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{
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return container_of(connector, struct ps8622_bridge, connector);
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}
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static int ps8622_set(struct i2c_client *client, u8 page, u8 reg, u8 val)
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{
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int ret;
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struct i2c_adapter *adap = client->adapter;
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struct i2c_msg msg;
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u8 data[] = {reg, val};
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msg.addr = client->addr + page;
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msg.flags = 0;
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msg.len = sizeof(data);
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msg.buf = data;
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ret = i2c_transfer(adap, &msg, 1);
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if (ret != 1)
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pr_warn("PS8622 I2C write (0x%02x,0x%02x,0x%02x) failed: %d\n",
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client->addr + page, reg, val, ret);
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return !(ret == 1);
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}
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static int ps8622_send_config(struct ps8622_bridge *ps8622)
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{
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struct i2c_client *cl = ps8622->client;
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int err = 0;
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/* HPD low */
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err = ps8622_set(cl, 0x02, 0xa1, 0x01);
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if (err)
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goto error;
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/* SW setting: [1:0] SW output 1.2V voltage is lower to 96% */
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err = ps8622_set(cl, 0x04, 0x14, 0x01);
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if (err)
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goto error;
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/* RCO SS setting: [5:4] = b01 0.5%, b10 1%, b11 1.5% */
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err = ps8622_set(cl, 0x04, 0xe3, 0x20);
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if (err)
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goto error;
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/* [7] RCO SS enable */
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err = ps8622_set(cl, 0x04, 0xe2, 0x80);
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if (err)
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goto error;
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/* RPHY Setting
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* [3:2] CDR tune wait cycle before measure for fine tune
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* b00: 1us b01: 0.5us b10:2us, b11: 4us
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*/
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err = ps8622_set(cl, 0x04, 0x8a, 0x0c);
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if (err)
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goto error;
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/* [3] RFD always on */
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err = ps8622_set(cl, 0x04, 0x89, 0x08);
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if (err)
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goto error;
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/* CTN lock in/out: 20000ppm/80000ppm. Lock out 2 times. */
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err = ps8622_set(cl, 0x04, 0x71, 0x2d);
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if (err)
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goto error;
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/* 2.7G CDR settings: NOF=40LSB for HBR CDR setting */
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err = ps8622_set(cl, 0x04, 0x7d, 0x07);
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if (err)
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goto error;
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/* [1:0] Fmin=+4bands */
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err = ps8622_set(cl, 0x04, 0x7b, 0x00);
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if (err)
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goto error;
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/* [7:5] DCO_FTRNG=+-40% */
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err = ps8622_set(cl, 0x04, 0x7a, 0xfd);
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if (err)
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goto error;
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/* 1.62G CDR settings: [5:2]NOF=64LSB [1:0]DCO scale is 2/5 */
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err = ps8622_set(cl, 0x04, 0xc0, 0x12);
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if (err)
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goto error;
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/* Gitune=-37% */
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err = ps8622_set(cl, 0x04, 0xc1, 0x92);
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if (err)
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goto error;
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/* Fbstep=100% */
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err = ps8622_set(cl, 0x04, 0xc2, 0x1c);
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if (err)
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goto error;
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/* [7] LOS signal disable */
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err = ps8622_set(cl, 0x04, 0x32, 0x80);
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if (err)
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goto error;
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/* RPIO Setting: [7:4] LVDS driver bias current : 75% (250mV swing) */
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err = ps8622_set(cl, 0x04, 0x00, 0xb0);
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if (err)
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goto error;
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/* [7:6] Right-bar GPIO output strength is 8mA */
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err = ps8622_set(cl, 0x04, 0x15, 0x40);
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if (err)
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goto error;
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/* EQ Training State Machine Setting, RCO calibration start */
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err = ps8622_set(cl, 0x04, 0x54, 0x10);
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if (err)
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goto error;
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/* Logic, needs more than 10 I2C command */
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/* [4:0] MAX_LANE_COUNT set to max supported lanes */
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err = ps8622_set(cl, 0x01, 0x02, 0x80 | ps8622->max_lane_count);
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if (err)
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goto error;
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/* [4:0] LANE_COUNT_SET set to chosen lane count */
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err = ps8622_set(cl, 0x01, 0x21, 0x80 | ps8622->lane_count);
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if (err)
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goto error;
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err = ps8622_set(cl, 0x00, 0x52, 0x20);
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if (err)
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goto error;
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/* HPD CP toggle enable */
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err = ps8622_set(cl, 0x00, 0xf1, 0x03);
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if (err)
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goto error;
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err = ps8622_set(cl, 0x00, 0x62, 0x41);
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if (err)
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goto error;
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/* Counter number, add 1ms counter delay */
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err = ps8622_set(cl, 0x00, 0xf6, 0x01);
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if (err)
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goto error;
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/* [6]PWM function control by DPCD0040f[7], default is PWM block */
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err = ps8622_set(cl, 0x00, 0x77, 0x06);
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if (err)
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goto error;
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/* 04h Adjust VTotal toleranceto fix the 30Hz no display issue */
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err = ps8622_set(cl, 0x00, 0x4c, 0x04);
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if (err)
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goto error;
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/* DPCD00400='h00, Parade OUI ='h001cf8 */
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err = ps8622_set(cl, 0x01, 0xc0, 0x00);
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if (err)
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goto error;
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/* DPCD00401='h1c */
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err = ps8622_set(cl, 0x01, 0xc1, 0x1c);
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if (err)
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goto error;
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/* DPCD00402='hf8 */
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err = ps8622_set(cl, 0x01, 0xc2, 0xf8);
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if (err)
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goto error;
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/* DPCD403~408 = ASCII code, D2SLV5='h4432534c5635 */
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err = ps8622_set(cl, 0x01, 0xc3, 0x44);
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if (err)
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goto error;
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/* DPCD404 */
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err = ps8622_set(cl, 0x01, 0xc4, 0x32);
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if (err)
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goto error;
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/* DPCD405 */
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err = ps8622_set(cl, 0x01, 0xc5, 0x53);
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if (err)
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goto error;
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/* DPCD406 */
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err = ps8622_set(cl, 0x01, 0xc6, 0x4c);
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if (err)
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goto error;
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/* DPCD407 */
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err = ps8622_set(cl, 0x01, 0xc7, 0x56);
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if (err)
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goto error;
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/* DPCD408 */
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err = ps8622_set(cl, 0x01, 0xc8, 0x35);
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if (err)
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goto error;
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/* DPCD40A, Initial Code major revision '01' */
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err = ps8622_set(cl, 0x01, 0xca, 0x01);
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if (err)
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goto error;
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/* DPCD40B, Initial Code minor revision '05' */
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err = ps8622_set(cl, 0x01, 0xcb, 0x05);
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if (err)
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goto error;
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if (ps8622->bl) {
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/* DPCD720, internal PWM */
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err = ps8622_set(cl, 0x01, 0xa5, 0xa0);
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if (err)
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goto error;
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/* FFh for 100% brightness, 0h for 0% brightness */
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err = ps8622_set(cl, 0x01, 0xa7,
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ps8622->bl->props.brightness);
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if (err)
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goto error;
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} else {
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/* DPCD720, external PWM */
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err = ps8622_set(cl, 0x01, 0xa5, 0x80);
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if (err)
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goto error;
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}
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/* Set LVDS output as 6bit-VESA mapping, single LVDS channel */
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err = ps8622_set(cl, 0x01, 0xcc, 0x13);
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if (err)
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goto error;
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/* Enable SSC set by register */
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err = ps8622_set(cl, 0x02, 0xb1, 0x20);
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if (err)
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goto error;
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/* Set SSC enabled and +/-1% central spreading */
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err = ps8622_set(cl, 0x04, 0x10, 0x16);
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if (err)
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goto error;
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/* Logic end */
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/* MPU Clock source: LC => RCO */
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err = ps8622_set(cl, 0x04, 0x59, 0x60);
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if (err)
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goto error;
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/* LC -> RCO */
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err = ps8622_set(cl, 0x04, 0x54, 0x14);
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if (err)
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goto error;
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/* HPD high */
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err = ps8622_set(cl, 0x02, 0xa1, 0x91);
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error:
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return err ? -EIO : 0;
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}
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static int ps8622_backlight_update(struct backlight_device *bl)
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{
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struct ps8622_bridge *ps8622 = dev_get_drvdata(&bl->dev);
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int ret, brightness = bl->props.brightness;
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if (bl->props.power != FB_BLANK_UNBLANK ||
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bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
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brightness = 0;
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if (!ps8622->enabled)
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return -EINVAL;
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ret = ps8622_set(ps8622->client, 0x01, 0xa7, brightness);
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return ret;
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}
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static const struct backlight_ops ps8622_backlight_ops = {
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.update_status = ps8622_backlight_update,
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};
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static void ps8622_pre_enable(struct drm_bridge *bridge)
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{
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struct ps8622_bridge *ps8622 = bridge_to_ps8622(bridge);
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int ret;
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if (ps8622->enabled)
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return;
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gpiod_set_value(ps8622->gpio_rst, 0);
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if (ps8622->v12) {
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ret = regulator_enable(ps8622->v12);
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if (ret)
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DRM_ERROR("fails to enable ps8622->v12");
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}
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if (drm_panel_prepare(ps8622->panel)) {
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DRM_ERROR("failed to prepare panel\n");
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return;
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}
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gpiod_set_value(ps8622->gpio_slp, 1);
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/*
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* T1 is the range of time that it takes for the power to rise after we
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* enable the lcd/ps8622 fet. T2 is the range of time in which the
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* data sheet specifies we should deassert the reset pin.
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*
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* If it takes T1.max for the power to rise, we need to wait atleast
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* T2.min before deasserting the reset pin. If it takes T1.min for the
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* power to rise, we need to wait at most T2.max before deasserting the
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* reset pin.
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*/
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usleep_range(PS8622_RST_HIGH_T2_MIN_US + PS8622_POWER_RISE_T1_MAX_US,
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PS8622_RST_HIGH_T2_MAX_US + PS8622_POWER_RISE_T1_MIN_US);
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gpiod_set_value(ps8622->gpio_rst, 1);
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/* wait 20ms after RST high */
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usleep_range(20000, 30000);
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ret = ps8622_send_config(ps8622);
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if (ret) {
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DRM_ERROR("Failed to send config to bridge (%d)\n", ret);
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return;
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}
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ps8622->enabled = true;
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}
|
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static void ps8622_enable(struct drm_bridge *bridge)
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{
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struct ps8622_bridge *ps8622 = bridge_to_ps8622(bridge);
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|
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if (drm_panel_enable(ps8622->panel)) {
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DRM_ERROR("failed to enable panel\n");
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return;
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}
|
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}
|
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static void ps8622_disable(struct drm_bridge *bridge)
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{
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struct ps8622_bridge *ps8622 = bridge_to_ps8622(bridge);
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|
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if (drm_panel_disable(ps8622->panel)) {
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DRM_ERROR("failed to disable panel\n");
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return;
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}
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msleep(PS8622_PWMO_END_T12_MS);
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}
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||||
static void ps8622_post_disable(struct drm_bridge *bridge)
|
||||
{
|
||||
struct ps8622_bridge *ps8622 = bridge_to_ps8622(bridge);
|
||||
|
||||
if (!ps8622->enabled)
|
||||
return;
|
||||
|
||||
ps8622->enabled = false;
|
||||
|
||||
/*
|
||||
* This doesn't matter if the regulators are turned off, but something
|
||||
* else might keep them on. In that case, we want to assert the slp gpio
|
||||
* to lower power.
|
||||
*/
|
||||
gpiod_set_value(ps8622->gpio_slp, 0);
|
||||
|
||||
if (drm_panel_unprepare(ps8622->panel)) {
|
||||
DRM_ERROR("failed to unprepare panel\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (ps8622->v12)
|
||||
regulator_disable(ps8622->v12);
|
||||
|
||||
/*
|
||||
* Sleep for at least the amount of time that it takes the power rail to
|
||||
* fall to prevent asserting the rst gpio from doing anything.
|
||||
*/
|
||||
usleep_range(PS8622_POWER_FALL_T16_MAX_US,
|
||||
2 * PS8622_POWER_FALL_T16_MAX_US);
|
||||
gpiod_set_value(ps8622->gpio_rst, 0);
|
||||
|
||||
msleep(PS8622_POWER_OFF_T17_MS);
|
||||
}
|
||||
|
||||
static int ps8622_get_modes(struct drm_connector *connector)
|
||||
{
|
||||
struct ps8622_bridge *ps8622;
|
||||
|
||||
ps8622 = connector_to_ps8622(connector);
|
||||
|
||||
return drm_panel_get_modes(ps8622->panel);
|
||||
}
|
||||
|
||||
static struct drm_encoder *ps8622_best_encoder(struct drm_connector *connector)
|
||||
{
|
||||
struct ps8622_bridge *ps8622;
|
||||
|
||||
ps8622 = connector_to_ps8622(connector);
|
||||
|
||||
return ps8622->bridge.encoder;
|
||||
}
|
||||
|
||||
static const struct drm_connector_helper_funcs ps8622_connector_helper_funcs = {
|
||||
.get_modes = ps8622_get_modes,
|
||||
.best_encoder = ps8622_best_encoder,
|
||||
};
|
||||
|
||||
static enum drm_connector_status ps8622_detect(struct drm_connector *connector,
|
||||
bool force)
|
||||
{
|
||||
return connector_status_connected;
|
||||
}
|
||||
|
||||
static void ps8622_connector_destroy(struct drm_connector *connector)
|
||||
{
|
||||
drm_connector_cleanup(connector);
|
||||
}
|
||||
|
||||
static const struct drm_connector_funcs ps8622_connector_funcs = {
|
||||
.dpms = drm_helper_connector_dpms,
|
||||
.fill_modes = drm_helper_probe_single_connector_modes,
|
||||
.detect = ps8622_detect,
|
||||
.destroy = ps8622_connector_destroy,
|
||||
};
|
||||
|
||||
int ps8622_attach(struct drm_bridge *bridge)
|
||||
{
|
||||
struct ps8622_bridge *ps8622 = bridge_to_ps8622(bridge);
|
||||
int ret;
|
||||
|
||||
if (!bridge->encoder) {
|
||||
DRM_ERROR("Parent encoder object not found");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ps8622->connector.polled = DRM_CONNECTOR_POLL_HPD;
|
||||
ret = drm_connector_init(bridge->dev, &ps8622->connector,
|
||||
&ps8622_connector_funcs, DRM_MODE_CONNECTOR_LVDS);
|
||||
if (ret) {
|
||||
DRM_ERROR("Failed to initialize connector with drm\n");
|
||||
return ret;
|
||||
}
|
||||
drm_connector_helper_add(&ps8622->connector,
|
||||
&ps8622_connector_helper_funcs);
|
||||
drm_connector_register(&ps8622->connector);
|
||||
drm_mode_connector_attach_encoder(&ps8622->connector,
|
||||
bridge->encoder);
|
||||
|
||||
if (ps8622->panel)
|
||||
drm_panel_attach(ps8622->panel, &ps8622->connector);
|
||||
|
||||
drm_helper_hpd_irq_event(ps8622->connector.dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct drm_bridge_funcs ps8622_bridge_funcs = {
|
||||
.pre_enable = ps8622_pre_enable,
|
||||
.enable = ps8622_enable,
|
||||
.disable = ps8622_disable,
|
||||
.post_disable = ps8622_post_disable,
|
||||
.attach = ps8622_attach,
|
||||
};
|
||||
|
||||
static const struct of_device_id ps8622_devices[] = {
|
||||
{.compatible = "parade,ps8622",},
|
||||
{.compatible = "parade,ps8625",},
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, ps8622_devices);
|
||||
|
||||
static int ps8622_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct device *dev = &client->dev;
|
||||
struct device_node *endpoint, *panel_node;
|
||||
struct ps8622_bridge *ps8622;
|
||||
int ret;
|
||||
|
||||
ps8622 = devm_kzalloc(dev, sizeof(*ps8622), GFP_KERNEL);
|
||||
if (!ps8622)
|
||||
return -ENOMEM;
|
||||
|
||||
endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
|
||||
if (endpoint) {
|
||||
panel_node = of_graph_get_remote_port_parent(endpoint);
|
||||
if (panel_node) {
|
||||
ps8622->panel = of_drm_find_panel(panel_node);
|
||||
of_node_put(panel_node);
|
||||
if (!ps8622->panel)
|
||||
return -EPROBE_DEFER;
|
||||
}
|
||||
}
|
||||
|
||||
ps8622->client = client;
|
||||
|
||||
ps8622->v12 = devm_regulator_get(dev, "vdd12");
|
||||
if (IS_ERR(ps8622->v12)) {
|
||||
dev_info(dev, "no 1.2v regulator found for PS8622\n");
|
||||
ps8622->v12 = NULL;
|
||||
}
|
||||
|
||||
ps8622->gpio_slp = devm_gpiod_get(dev, "sleep");
|
||||
if (IS_ERR(ps8622->gpio_slp)) {
|
||||
ret = PTR_ERR(ps8622->gpio_slp);
|
||||
dev_err(dev, "cannot get gpio_slp %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
ret = gpiod_direction_output(ps8622->gpio_slp, 1);
|
||||
if (ret) {
|
||||
dev_err(dev, "cannot configure gpio_slp\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ps8622->gpio_rst = devm_gpiod_get(dev, "reset");
|
||||
if (IS_ERR(ps8622->gpio_rst)) {
|
||||
ret = PTR_ERR(ps8622->gpio_rst);
|
||||
dev_err(dev, "cannot get gpio_rst %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
/*
|
||||
* Assert the reset pin high to avoid the bridge being
|
||||
* initialized prematurely
|
||||
*/
|
||||
ret = gpiod_direction_output(ps8622->gpio_rst, 1);
|
||||
if (ret) {
|
||||
dev_err(dev, "cannot configure gpio_rst\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ps8622->max_lane_count = id->driver_data;
|
||||
|
||||
if (of_property_read_u32(dev->of_node, "lane-count",
|
||||
&ps8622->lane_count)) {
|
||||
ps8622->lane_count = ps8622->max_lane_count;
|
||||
} else if (ps8622->lane_count > ps8622->max_lane_count) {
|
||||
dev_info(dev, "lane-count property is too high,"
|
||||
"using max_lane_count\n");
|
||||
ps8622->lane_count = ps8622->max_lane_count;
|
||||
}
|
||||
|
||||
if (!of_find_property(dev->of_node, "use-external-pwm", NULL)) {
|
||||
ps8622->bl = backlight_device_register("ps8622-backlight",
|
||||
dev, ps8622, &ps8622_backlight_ops,
|
||||
NULL);
|
||||
if (IS_ERR(ps8622->bl)) {
|
||||
DRM_ERROR("failed to register backlight\n");
|
||||
ret = PTR_ERR(ps8622->bl);
|
||||
ps8622->bl = NULL;
|
||||
return ret;
|
||||
}
|
||||
ps8622->bl->props.max_brightness = PS8622_MAX_BRIGHTNESS;
|
||||
ps8622->bl->props.brightness = PS8622_MAX_BRIGHTNESS;
|
||||
}
|
||||
|
||||
ps8622->bridge.funcs = &ps8622_bridge_funcs;
|
||||
ps8622->bridge.of_node = dev->of_node;
|
||||
ret = drm_bridge_add(&ps8622->bridge);
|
||||
if (ret) {
|
||||
DRM_ERROR("Failed to add bridge\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
i2c_set_clientdata(client, ps8622);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ps8622_remove(struct i2c_client *client)
|
||||
{
|
||||
struct ps8622_bridge *ps8622 = i2c_get_clientdata(client);
|
||||
|
||||
if (ps8622->bl)
|
||||
backlight_device_unregister(ps8622->bl);
|
||||
|
||||
drm_bridge_remove(&ps8622->bridge);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id ps8622_i2c_table[] = {
|
||||
/* Device type, max_lane_count */
|
||||
{"ps8622", 1},
|
||||
{"ps8625", 2},
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, ps8622_i2c_table);
|
||||
|
||||
struct i2c_driver ps8622_driver = {
|
||||
.id_table = ps8622_i2c_table,
|
||||
.probe = ps8622_probe,
|
||||
.remove = ps8622_remove,
|
||||
.driver = {
|
||||
.name = "ps8622",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = ps8622_devices,
|
||||
},
|
||||
};
|
||||
module_i2c_driver(ps8622_driver);
|
||||
|
||||
MODULE_AUTHOR("Vincent Palatin <vpalatin@chromium.org>");
|
||||
MODULE_DESCRIPTION("Parade ps8622/ps8625 eDP-LVDS converter driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue