From d9829a328943c06b034f52885ea650e334b062a7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 7 Sep 2015 15:44:44 +0300 Subject: [PATCH] drm: rcar-du: lvds: Avoid duplication of clock clamp code Replace the duplicate code by a single central function. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 6 +----- drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c | 7 ++----- drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c | 9 +++++++++ drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h | 6 ++++++ 4 files changed, 18 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index c08700757feb..4e939e41f030 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -89,12 +89,8 @@ static int rcar_du_encoder_atomic_check(struct drm_encoder *encoder, /* The flat panel mode is fixed, just copy it to the adjusted mode. */ drm_mode_copy(adjusted_mode, panel_mode); - /* The internal LVDS encoder has a clock frequency operating range of - * 30MHz to 150MHz. Clamp the clock accordingly. - */ if (renc->lvds) - adjusted_mode->clock = clamp(adjusted_mode->clock, - 30000, 150000); + rcar_du_lvdsenc_atomic_check(renc->lvds, adjusted_mode); return 0; } diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c index 2567efcbee36..065b3a1d6134 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c @@ -71,12 +71,9 @@ static int rcar_du_hdmienc_atomic_check(struct drm_encoder *encoder, struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode; const struct drm_display_mode *mode = &crtc_state->mode; - /* The internal LVDS encoder has a clock frequency operating range of - * 30MHz to 150MHz. Clamp the clock accordingly. - */ if (hdmienc->renc->lvds) - adjusted_mode->clock = clamp(adjusted_mode->clock, - 30000, 150000); + rcar_du_lvdsenc_atomic_check(hdmienc->renc->lvds, + adjusted_mode); if (sfuncs->mode_fixup == NULL) return 0; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c index 85043c5bad03..937b2da98814 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c @@ -140,6 +140,15 @@ int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds, struct drm_crtc *crtc, return -EINVAL; } +void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds, + struct drm_display_mode *mode) +{ + /* The internal LVDS encoder has a clock frequency operating range of + * 30MHz to 150MHz. Clamp the clock accordingly. + */ + mode->clock = clamp(mode->clock, 30000, 150000); +} + static int rcar_du_lvdsenc_get_resources(struct rcar_du_lvdsenc *lvds, struct platform_device *pdev) { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h index 9a6001c07303..dfdba746edf4 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h @@ -30,6 +30,8 @@ enum rcar_lvds_input { int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu); int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds, struct drm_crtc *crtc, bool enable); +void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds, + struct drm_display_mode *mode); #else static inline int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu) { @@ -40,6 +42,10 @@ static inline int rcar_du_lvdsenc_enable(struct rcar_du_lvdsenc *lvds, { return 0; } +static inline void rcar_du_lvdsenc_atomic_check(struct rcar_du_lvdsenc *lvds, + struct drm_display_mode *mode) +{ +} #endif #endif /* __RCAR_DU_LVDSENC_H__ */ -- 2.30.2