[PATCH v5 01/11] drm/mediatek: gamma: Adjust mtk_drm_gamma_set_common parameters

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From: "Jason-JH.Lin" <jason-jh.lin@xxxxxxxxxxxx>

Adjust the parameters in mtk_drm_gamma_set_common()
  - add (struct device *dev) to get lut_diff from gamma's driver data
  - remove (bool lut_diff) and use false as default value in the function

Signed-off-by: Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/mediatek/mtk_disp_aal.c   |  2 +-
 drivers/gpu/drm/mediatek/mtk_disp_drv.h   |  2 +-
 drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 15 +++++++++------
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
index 434e8a9ce8ab..8ddf7a97e583 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_aal.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
@@ -67,7 +67,7 @@ void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state)
 	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
 
 	if (aal->data && aal->data->has_gamma)
-		mtk_gamma_set_common(aal->regs, state, false);
+		mtk_gamma_set_common(NULL, aal->regs, state);
 }
 
 void mtk_aal_start(struct device *dev)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 2254038519e1..75045932353e 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -54,7 +54,7 @@ void mtk_gamma_config(struct device *dev, unsigned int w,
 		      unsigned int h, unsigned int vrefresh,
 		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
 void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state);
-void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff);
+void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state);
 void mtk_gamma_start(struct device *dev);
 void mtk_gamma_stop(struct device *dev);
 
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
index c844942603f7..99be515a941b 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
@@ -55,14 +55,21 @@ void mtk_gamma_clk_disable(struct device *dev)
 	clk_disable_unprepare(gamma->clk);
 }
 
-void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff)
+void mtk_gamma_set_common(struct device *dev, void __iomem *regs, struct drm_crtc_state *state)
 {
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
 	unsigned int i, reg;
 	struct drm_color_lut *lut;
 	void __iomem *lut_base;
+	bool lut_diff;
 	u32 word;
 	u32 diff[3] = {0};
 
+	if (gamma && gamma->data)
+		lut_diff = gamma->data->lut_diff;
+	else
+		lut_diff = false;
+
 	if (state->gamma_lut) {
 		reg = readl(regs + DISP_GAMMA_CFG);
 		reg = reg | GAMMA_LUT_EN;
@@ -92,12 +99,8 @@ void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool
 void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state)
 {
 	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
-	bool lut_diff = false;
-
-	if (gamma->data)
-		lut_diff = gamma->data->lut_diff;
 
-	mtk_gamma_set_common(gamma->regs, state, lut_diff);
+	mtk_gamma_set_common(dev, gamma->regs, state);
 }
 
 void mtk_gamma_config(struct device *dev, unsigned int w,
-- 
2.40.1




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