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drm/ssd130x: Set the page height value in the device info data

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The driver only supports OLED controllers that have a page height of 8 but
there are devices that have different page heights. So it is better to not
hardcode this value and instead have it as a per controller data value.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230609170941.1150941-4-javierm@redhat.com
This commit is contained in:
Javier Martinez Canillas 2023-06-09 19:09:38 +02:00
parent 591825fba8
commit 179a790aaf
No known key found for this signature in database
GPG Key ID: C751E590D63F3D69
2 changed files with 12 additions and 4 deletions
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15
drivers/gpu/drm/solomon/ssd130x.c
View File

@ -102,6 +102,7 @@ const struct ssd130x_deviceinfo ssd130x_variants[] = {
.default_width = 132,
.default_height = 64,
.page_mode_only = 1,
.page_height = 8,
},
[SSD1305_ID] = {
.default_vcomh = 0x34,
@ -109,6 +110,7 @@ const struct ssd130x_deviceinfo ssd130x_variants[] = {
.default_dclk_frq = 7,
.default_width = 132,
.default_height = 64,
.page_height = 8,
},
[SSD1306_ID] = {
.default_vcomh = 0x20,
@ -117,6 +119,7 @@ const struct ssd130x_deviceinfo ssd130x_variants[] = {
.need_chargepump = 1,
.default_width = 128,
.default_height = 64,
.page_height = 8,
},
[SSD1307_ID] = {
.default_vcomh = 0x20,
@ -125,6 +128,7 @@ const struct ssd130x_deviceinfo ssd130x_variants[] = {
.need_pwm = 1,
.default_width = 128,
.default_height = 39,
.page_height = 8,
},
[SSD1309_ID] = {
.default_vcomh = 0x34,
@ -132,6 +136,7 @@ const struct ssd130x_deviceinfo ssd130x_variants[] = {
.default_dclk_frq = 10,
.default_width = 128,
.default_height = 64,
.page_height = 8,
}
};
EXPORT_SYMBOL_NS_GPL(ssd130x_variants, DRM_SSD130X);
@ -437,7 +442,8 @@ static int ssd130x_update_rect(struct ssd130x_device *ssd130x, u8 *buf,
unsigned int width = drm_rect_width(rect);
unsigned int height = drm_rect_height(rect);
unsigned int line_length = DIV_ROUND_UP(width, 8);
unsigned int pages = DIV_ROUND_UP(height, 8);
unsigned int page_height = ssd130x->device_info->page_height;
unsigned int pages = DIV_ROUND_UP(height, page_height);
struct drm_device *drm = &ssd130x->drm;
u32 array_idx = 0;
int ret, i, j, k;
@ -559,16 +565,17 @@ static int ssd130x_fb_blit_rect(struct drm_framebuffer *fb, const struct iosys_m
struct drm_rect *rect)
{
struct ssd130x_device *ssd130x = drm_to_ssd130x(fb->dev);
unsigned int page_height = ssd130x->device_info->page_height;
struct iosys_map dst;
unsigned int dst_pitch;
int ret = 0;
u8 *buf = NULL;
/* Align y to display page boundaries */
rect->y1 = round_down(rect->y1, 8);
rect->y2 = min_t(unsigned int, round_up(rect->y2, 8), ssd130x->height);
rect->y1 = round_down(rect->y1, page_height);
rect->y2 = min_t(unsigned int, round_up(rect->y2, page_height), ssd130x->height);
dst_pitch = DIV_ROUND_UP(drm_rect_width(rect), 8);
dst_pitch = DIV_ROUND_UP(drm_rect_width(rect), page_height);
buf = kcalloc(dst_pitch, drm_rect_height(rect), GFP_KERNEL);
if (!buf)
return -ENOMEM;

1
drivers/gpu/drm/solomon/ssd130x.h
View File

@ -39,6 +39,7 @@ struct ssd130x_deviceinfo {
u32 default_dclk_frq;
u32 default_width;
u32 default_height;
u32 page_height;
int need_pwm;
int need_chargepump;
bool page_mode_only;