Revert "s6e3fc3_6a: add update lhbm gamma function"

This reverts commit d18e5309e408571df00110316cb128478614349a.

Reason for revert: Sensor team request due to DTE OPR testing

Bug: 232857978
Change-Id: I898762d6c96285e4115fce0eb670998550acdac9

1 files changed, 0 insertions, 42 deletions

diff --git a/display/panel-samsung-s6e3fc3_6a.c b/display/panel-samsung-s6e3fc3_6a.c
index 3476cbc..cb2e184 100644
--- a/display/panel-samsung-s6e3fc3_6a.c
+++ b/display/panel-samsung-s6e3fc3_6a.c
@@ -242,47 +242,6 @@ static void s6e3fc3_6a_set_nolp_mode(struct exynos_panel *ctx,
 }
 
 #define S6E3FC3_LOCAL_HBM_GAMMA_CMD_SIZE 6
-static void s6e3fc3_6a_update_lhbm_gamma(struct exynos_panel *ctx)
-{
-	/* ratio provided by HW for update the LHBM gamma.
-	 * ratio must be a integer due to kernel didn't support floating.
-	 * ratio original value R: 1.076923077, G: 1.061566485, B: 1.065269461.
-	 * ratio cannot exceed u32 max 4294967296.
-	 * R gamma hex from last 16bit from gamma_cmd[1] combine with gamma_cmd[3]
-	 * G gamma hex from first 16bit from gamma_cmd[2] combine with gamma_cmd[4]
-	 * B gamma hex from last 16bit from gamma_cmd[2] combine with gamma_cmd[5]
-	 */
-	u8 *gamma_cmd = ctx->hbm.local_hbm.gamma_cmd;
-	const u32 rgb_ratio[3] = {1076923077, 1061566485, 1065269461};
-	const u8 rgb_index[3][2] = {{1, 3}, {2, 4}, {2, 5}};
-	u8 new_gamma_cmd[S6E3FC3_LOCAL_HBM_GAMMA_CMD_SIZE] = {0};
-	u64 tmp;
-	int i;
-	u16 mask, shift;
-	dev_info(ctx->dev, "%s: gamma_cmd(%02x %02x %02x %02x %02x)\n", __func__,
-		gamma_cmd[1], gamma_cmd[2], gamma_cmd[3], gamma_cmd[4], gamma_cmd[5]);
-	for (i = 0; i < ARRAY_SIZE(rgb_ratio); i++) {
-		if (i % 2) {
-			mask = 0xf0;
-			shift = 4;
-		} else {
-			mask = 0x0f;
-			shift = 0;
-		}
-		tmp = ((gamma_cmd[rgb_index[i][0]] & mask) >> shift) << 8 | gamma_cmd[rgb_index[i][1]];
-		dev_dbg(ctx->dev, "%s: lhbm_gamma[%d] = %llu\n", __func__, i, tmp);
-
-		/* Round off and revert to original gamma value */
-		tmp = (tmp * rgb_ratio[i] + 500000000)/1000000000;
-		dev_dbg(ctx->dev, "%s: new lhbm_gamma[%d] = %llu\n", __func__, i, tmp);
-		new_gamma_cmd[rgb_index[i][0]] |= ((tmp & 0xff00) >> 8) << shift;
-		new_gamma_cmd[rgb_index[i][1]] |= tmp & 0xff;
-	}
-	memcpy(&gamma_cmd[1], &new_gamma_cmd[1], S6E3FC3_LOCAL_HBM_GAMMA_CMD_SIZE - 1);
-	dev_info(ctx->dev, "%s: new_gamma_cmd(%02x %02x %02x %02x %02x)\n", __func__,
-		gamma_cmd[1], gamma_cmd[2], gamma_cmd[3], gamma_cmd[4], gamma_cmd[5]);
-}
-
 static int s6e3fc3_6a_lhbm_gamma_read(struct exynos_panel *ctx)
 {
 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
@@ -305,7 +264,6 @@ static int s6e3fc3_6a_lhbm_gamma_read(struct exynos_panel *ctx)
 	EXYNOS_DCS_WRITE_SEQ(ctx, 0xB0, 0x00, 0x28, 0xF2); /* global para*/
 	EXYNOS_DCS_WRITE_SEQ(ctx, 0xF2, 0xC4); /* 8 bit */
 	EXYNOS_DCS_WRITE_TABLE(ctx, test_key_off_f0);
-	s6e3fc3_6a_update_lhbm_gamma(ctx);
 	return ret;
 }