diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets/lenovo.c | 29 | ||||
| -rw-r--r-- | drivers/platform/x86/x86-android-tablets/x86-android-tablets.h | 3 |
2 files changed, 7 insertions, 25 deletions
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c index 0baad9970820..d9d6dccc53c8 100644 --- a/drivers/platform/x86/x86-android-tablets/lenovo.c +++ b/drivers/platform/x86/x86-android-tablets/lenovo.c @@ -162,9 +162,9 @@ static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = { static int __init lenovo_yoga_tab2_830_1050_init(void); static void lenovo_yoga_tab2_830_1050_exit(void); -struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = { +const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = { .i2c_client_info = lenovo_yoga_tab2_830_1050_i2c_clients, - /* i2c_client_count gets set by lenovo_yoga_tab2_830_1050_init() */ + .i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients), .pdev_info = int3496_pdevs, .pdev_count = 1, .gpio_button = &lenovo_yoga_tab2_830_1050_lid, @@ -177,23 +177,10 @@ struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initdata = { /* * The Lenovo Yoga Tablet 2 830 and 1050 (8" vs 10") versions use the same - * mainboard, but they need some different treatment related to the display: - * 1. The 830 uses a portrait LCD panel with a landscape touchscreen, requiring - * the touchscreen driver to adjust the touch-coords to match the LCD. - * 2. Both use an TI LP8557 LED backlight controller. On the 1050 the LP8557's - * PWM input is connected to the PMIC's PWM output and everything works fine - * with the defaults programmed into the LP8557 by the BIOS. - * But on the 830 the LP8557's PWM input is connected to a PWM output coming - * from the LCD panel's controller. The Android code has a hack in the i915 - * driver to write the non-standard DSI reg 0x9f with the desired backlight - * level to set the duty-cycle of the LCD's PWM output. - * - * To avoid having to have a similar hack in the mainline kernel the LP8557 - * entry in lenovo_yoga_tab2_830_1050_i2c_clients instead just programs the - * LP8557 to directly set the level, ignoring the PWM input. This means that - * the LP8557 i2c_client should only be instantiated on the 830. + * mainboard, but the 830 uses a portrait LCD panel with a landscape touchscreen, + * requiring the touchscreen driver to adjust the touch-coords to match the LCD. */ -static int __init lenovo_yoga_tab2_830_1050_init_display(void) +static int __init lenovo_yoga_tab2_830_1050_init_touchscreen(void) { struct gpio_desc *gpiod; int ret; @@ -206,14 +193,10 @@ static int __init lenovo_yoga_tab2_830_1050_init_display(void) ret = gpiod_get_value_cansleep(gpiod); if (ret) { pr_info("detected Lenovo Yoga Tablet 2 1050F/L\n"); - lenovo_yoga_tab2_830_1050_info.i2c_client_count = - ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients) - 1; } else { pr_info("detected Lenovo Yoga Tablet 2 830F/L\n"); lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.swap_axes = true; lenovo_yoga_tab2_830_1050_rmi_pdata.sensor_pdata.axis_align.flip_y = true; - lenovo_yoga_tab2_830_1050_info.i2c_client_count = - ARRAY_SIZE(lenovo_yoga_tab2_830_1050_i2c_clients); } return 0; @@ -281,7 +264,7 @@ static int __init lenovo_yoga_tab2_830_1050_init(void) { int ret; - ret = lenovo_yoga_tab2_830_1050_init_display(); + ret = lenovo_yoga_tab2_830_1050_init_touchscreen(); if (ret) return ret; diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h index cf8566b3fd9c..c2b490519324 100644 --- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h +++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h @@ -95,8 +95,7 @@ extern const struct x86_dev_info asus_tf103c_info; extern const struct x86_dev_info chuwi_hi8_info; extern const struct x86_dev_info czc_p10t; extern const struct x86_dev_info lenovo_yogabook_x91_info; -/* Not const as this gets modified by its init callback */ -extern struct x86_dev_info lenovo_yoga_tab2_830_1050_info; +extern const struct x86_dev_info lenovo_yoga_tab2_830_1050_info; extern const struct x86_dev_info lenovo_yt3_info; extern const struct x86_dev_info medion_lifetab_s10346_info; extern const struct x86_dev_info nextbook_ares8_info; |