Message ID | 20230601121022.2401844-11-angelogioacchino.delregno@collabora.com |
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State | New |
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Lin" <jason-jh.lin@mediatek.com> Subject: [PATCH v5 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Thu, 1 Jun 2023 14:10:21 +0200 Message-Id: <20230601121022.2401844-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230601121022.2401844-1-angelogioacchino.delregno@collabora.com> References: <20230601121022.2401844-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767503138841604112?= X-GMAIL-MSGID: =?utf-8?q?1767503138841604112?= |
Series |
MediaTek DDP GAMMA - 12-bit LUT support
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Commit Message
AngeloGioacchino Del Regno
June 1, 2023, 12:10 p.m. UTC
Disable relay mode at the end of LUT programming to make sure that the processed image goes through. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> --- drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c index e0e2d2bdbf59..e9655b661364 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -20,6 +20,7 @@ #define DISP_GAMMA_EN 0x0000 #define GAMMA_EN BIT(0) #define DISP_GAMMA_CFG 0x0020 +#define GAMMA_RELAY_MODE BIT(0) #define GAMMA_LUT_EN BIT(1) #define GAMMA_DITHERING BIT(2) #define DISP_GAMMA_SIZE 0x0030 @@ -180,6 +181,9 @@ void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crt /* Enable the gamma table */ cfg_val |= FIELD_PREP(GAMMA_LUT_EN, 1); + /* Disable RELAY mode to pass the processed image */ + cfg_val &= ~GAMMA_RELAY_MODE; + writel(cfg_val, regs + DISP_GAMMA_CFG); }