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Wed, 13 Mar 2019 16:26:17 +0800 From: Yongqiang Niu To: CK Hu , Philipp Zabel , Rob Herring , Matthias Brugger Subject: [RESEND PATCH v1, 13/18] drm/mediatek: add ddp write register common api Date: Wed, 13 Mar 2019 16:25:58 +0800 Message-ID: <1552465563-6940-14-git-send-email-yongqiang.niu@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1552465563-6940-1-git-send-email-yongqiang.niu@mediatek.com> References: <1552465563-6940-1-git-send-email-yongqiang.niu@mediatek.com> MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 13 Mar 2019 08:52:35 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Yongqiang Niu , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patch add ddp write register common api Signed-off-by: Yongqiang Niu --- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 24 ++++++++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 +++++++++ 2 files changed, 33 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index a97e27b..1c0f9cc 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -84,6 +84,30 @@ #define DITHER_ADD_LSHIFT_G(x) (((x) & 0x7) << 4) #define DITHER_ADD_RSHIFT_G(x) (((x) & 0x7) << 0) +void mtk_ddp_write(unsigned int value, struct mtk_ddp_comp *comp, + unsigned int offset) +{ + writel(value, comp->regs + offset); +} + +void mtk_ddp_write_relaxed(unsigned int value, + struct mtk_ddp_comp *comp, + unsigned int offset) +{ + writel_relaxed(value, comp->regs + offset); +} + +void mtk_ddp_write_mask(unsigned int value, + struct mtk_ddp_comp *comp, + unsigned int offset, + unsigned int mask) +{ + unsigned int tmp = readl(comp->regs + offset); + + tmp = (tmp & ~mask) | (value & mask); + writel(tmp, comp->regs + offset); +} + void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc, unsigned int CFG) { diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index f2ab0b3..b908172 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -189,5 +189,14 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node, void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp); void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc, unsigned int CFG); +void mtk_ddp_write(unsigned int value, struct mtk_ddp_comp *comp, + unsigned int offset); +void mtk_ddp_write_relaxed(unsigned int value, + struct mtk_ddp_comp *comp, + unsigned int offset); +void mtk_ddp_write_mask(unsigned int value, + struct mtk_ddp_comp *comp, + unsigned int offset, + unsigned int mask); #endif /* MTK_DRM_DDP_COMP_H */