diff options
| author | Andrzej Hajda <a.hajda@samsung.com> | 2016-09-12 10:10:07 +0200 |
|---|---|---|
| committer | Seung-Woo Kim <sw0312.kim@samsung.com> | 2016-12-14 13:52:56 +0900 |
| commit | 4b1ebcb05472ff557c355bdda3f801bf35328bed (patch) | |
| tree | 202f1e85b33b5697e18e9d57cc5f8fa398f0d99d /drivers/gpu/drm | |
| parent | 389458ab76b6501360d52adeb0bb39799007f94e (diff) | |
drm/panel/s6e3ha2: implement dynamic ELVSS setting
ELVSS settings should depend on actual brightness.
Change-Id: Id18fbdfdd8a3e2ddd577add4322aba617af1348b
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-s6e3ha2.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/gpu/drm/panel/panel-s6e3ha2.c b/drivers/gpu/drm/panel/panel-s6e3ha2.c index bfc87f820c10..c3b466acee43 100644 --- a/drivers/gpu/drm/panel/panel-s6e3ha2.c +++ b/drivers/gpu/drm/panel/panel-s6e3ha2.c @@ -771,9 +771,22 @@ static void s6e3ha2_aid_control(struct s6e3ha2 *ctx) s6e3ha2_dcs_write(ctx, cmd, 4); } -static void s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) +static void s6e3ha2_set_elvss(struct s6e3ha2 *ctx) { - s6e3ha2_dcs_write_seq_static(ctx, LDI_ELVSSOST, 0x9c, 0x0a); + int nit = ctx->hmt_mode ? hmt_nits[ctx->nit_index] + : s6e3ha2_nits[ctx->model][ctx->nit_index], i; + u8 mps_con = nit < 20 ? 0x8c : 0x9c; + + static const int nits[] = { + 0, 87, 110, 134, 162, 183, 207, 249, 282, 316, 360 + }; + static const u8 elvss[] = { + 0x16, 0x15, 0x14, 0x13, 0x12, 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a + }; + + for (i = 1; i < ARRAY_SIZE(nits) && nits[i] <= nit; ++i); + + s6e3ha2_dcs_write_seq(ctx, LDI_ELVSSOST, mps_con, elvss[i - 1]); } static void s6e3ha2_acl_off(struct s6e3ha2 *ctx) @@ -965,12 +978,6 @@ static void s6e3ha2_update_gamma(struct s6e3ha2 *ctx) s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); } -static void s6e3ha2_set_hmt_elvss(struct s6e3ha2 *ctx) -{ - /* TODO */ - s6e3ha2_dcs_write_seq_static(ctx, LDI_ELVSSOST, 0x9c, 0xa); -} - static void s6e3ha2_set_hmt_vint(struct s6e3ha2 *ctx) { s6e3ha2_dcs_write_seq_static(ctx, LDI_PWRCTL, 0x8b, 0x21); @@ -983,7 +990,7 @@ static void s6e3ha2_set_hmt_brightness(struct s6e3ha2 *ctx) s6e3ha2_update_gamma(ctx); s6e3ha2_aid_control(ctx); - s6e3ha2_set_hmt_elvss(ctx); + s6e3ha2_set_elvss(ctx); if (ctx->model == MODEL_1440) s6e3ha2_set_hmt_vint(ctx); s6e3ha2_gamma_update(ctx); @@ -1205,7 +1212,7 @@ static int s6e3ha2_enable(struct drm_panel *panel) /* brightness setting */ s6e3ha2_set_brightness(ctx); s6e3ha2_aid_control(ctx); - s6e3ha2_caps_elvss_set(ctx); + s6e3ha2_set_elvss(ctx); s6e3ha2_gamma_update(ctx); s6e3ha2_acl_off(ctx); s6e3ha2_acl_off_opr(ctx); |