fbcon: Add fbcon_rotate_hint to struct fb_info
On some hardware the LCD panel is not mounted upright in the casing, but upside-down or rotated 90 degrees. In this case we want the console to automatically be rotated to compensate. The fbdev-driver may know about the need to rotate. Add a new fbcon_rotate_hint field to struct fb_info, which gets initialized to -1. If the fbdev-driver knows that some sort of rotation is necessary then it can set this field to a FB_ROTATE_* value to tell the fbcon console driver to rotate the console. Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171125193553.23986-2-hdegoede@redhat.com
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@ -964,10 +964,13 @@ static const char *fbcon_startup(void)
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ops->cur_blink_jiffies = HZ / 5;
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ops->cur_blink_jiffies = HZ / 5;
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ops->info = info;
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ops->info = info;
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info->fbcon_par = ops;
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info->fbcon_par = ops;
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if (initial_rotation != -1)
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p->con_rotate = initial_rotation;
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p->con_rotate = initial_rotation;
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else
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if (p->con_rotate == -1)
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p->con_rotate = info->fbcon_rotate_hint;
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if (p->con_rotate == -1)
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p->con_rotate = fbcon_platform_get_rotate(info);
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p->con_rotate = fbcon_platform_get_rotate(info);
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set_blitting_type(vc, info);
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set_blitting_type(vc, info);
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if (info->fix.type != FB_TYPE_TEXT) {
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if (info->fix.type != FB_TYPE_TEXT) {
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@ -1104,10 +1107,13 @@ static void fbcon_init(struct vc_data *vc, int init)
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ops = info->fbcon_par;
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ops = info->fbcon_par;
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ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);
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ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);
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if (initial_rotation != -1)
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p->con_rotate = initial_rotation;
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p->con_rotate = initial_rotation;
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else
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if (p->con_rotate == -1)
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p->con_rotate = info->fbcon_rotate_hint;
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if (p->con_rotate == -1)
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p->con_rotate = fbcon_platform_get_rotate(info);
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p->con_rotate = fbcon_platform_get_rotate(info);
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set_blitting_type(vc, info);
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set_blitting_type(vc, info);
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cols = vc->vc_cols;
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cols = vc->vc_cols;
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@ -58,6 +58,7 @@ struct fb_info *framebuffer_alloc(size_t size, struct device *dev)
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info->par = p + fb_info_size;
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info->par = p + fb_info_size;
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info->device = dev;
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info->device = dev;
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info->fbcon_rotate_hint = -1;
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#ifdef CONFIG_FB_BACKLIGHT
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#ifdef CONFIG_FB_BACKLIGHT
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mutex_init(&info->bl_curve_mutex);
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mutex_init(&info->bl_curve_mutex);
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@ -465,6 +465,11 @@ struct fb_info {
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atomic_t count;
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atomic_t count;
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int node;
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int node;
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int flags;
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int flags;
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/*
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* -1 by default, set to a FB_ROTATE_* value by the driver, if it knows
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* a lcd is not mounted upright and fbcon should rotate to compensate.
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*/
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int fbcon_rotate_hint;
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struct mutex lock; /* Lock for open/release/ioctl funcs */
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struct mutex lock; /* Lock for open/release/ioctl funcs */
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struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
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struct mutex mm_lock; /* Lock for fb_mmap and smem_* fields */
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struct fb_var_screeninfo var; /* Current var */
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struct fb_var_screeninfo var; /* Current var */
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