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Fri, 30 Aug 2019 13:40:32 +0800 Message-ID: <1567143627.5942.10.camel@mtksdaap41> Subject: Re: [PATCH v5, 12/32] drm/mediatek: add mmsys private data for ddp path config From: CK Hu To: Date: Fri, 30 Aug 2019 13:40:27 +0800 In-Reply-To: <1567142858.5942.6.camel@mtksdaap41> References: <1567090254-15566-1-git-send-email-yongqiang.niu@mediatek.com> <1567090254-15566-13-git-send-email-yongqiang.niu@mediatek.com> <1567142858.5942.6.camel@mtksdaap41> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: 63705600795A02F27505757BDD9CBCADFD9382BB26651453F850F28E9B4B8EDE2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190829_224034_770095_6EB0C9B3 X-CRM114-Status: GOOD ( 15.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Philipp Zabel , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Rob Herring , linux-mediatek@lists.infradead.org, Daniel Vetter , Matthias Brugger , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Yongqiang: On Fri, 2019-08-30 at 13:27 +0800, CK Hu wrote: > Hi, Yongqiang: > > On Thu, 2019-08-29 at 22:50 +0800, yongqiang.niu@mediatek.com wrote: > > From: Yongqiang Niu > > > > This patch add mmsys private data for ddp path config > > all these register offset and value will be different in future SOC > > add these define into mmsys private data > > u32 ovl0_mout_en; > > u32 rdma1_sout_sel_in; > > u32 rdma1_sout_dsi0; > > u32 dpi0_sel_in; > > u32 dpi0_sel_in_rdma1; > > u32 dsi0_sel_in; > > u32 dsi0_sel_in_rdma1; > > > > Signed-off-by: Yongqiang Niu > > --- > > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 4 ++ > > drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 86 +++++++++++++++++++++++---------- > > drivers/gpu/drm/mediatek/mtk_drm_ddp.h | 5 ++ > > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 3 ++ > > drivers/gpu/drm/mediatek/mtk_drm_drv.h | 3 ++ > > 5 files changed, 76 insertions(+), 25 deletions(-) > > > > [snip] > > > > > void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > > + const struct mtk_mmsys_reg_data *reg_data, > > enum mtk_ddp_comp_id cur, > > enum mtk_ddp_comp_id next) > > { > > unsigned int addr, value, reg; > > > > - value = mtk_ddp_mout_en(cur, next, &addr); > > + value = mtk_ddp_mout_en(reg_data, cur, next, &addr); > > if (value) { > > reg = readl_relaxed(config_regs + addr) | value; > > writel_relaxed(reg, config_regs + addr); > > } > > > > - mtk_ddp_sout_sel(config_regs, cur, next); > > + value = mtk_ddp_sout_sel(reg_data, cur, next, &addr); > > + if (value) > > + writel_relaxed(value, config_regs + addr); > > I think the register could be written inside mtk_ddp_sout_sel(), why do > you move out of that function? OK, after review other patch, I understand what you do here. You want to align the method of mtk_ddp_mout_en(), mtk_ddp_sout_sel(), and mtk_ddp_sel_in(). so modification in these three function would be the same style. So I think this alignment should be an independent patch before this patch. Regards, CK > > Regards, > CK > > > > > - value = mtk_ddp_sel_in(cur, next, &addr); > > + value = mtk_ddp_sel_in(reg_data, cur, next, &addr); > > if (value) { > > reg = readl_relaxed(config_regs + addr) | value; > > writel_relaxed(reg, config_regs + addr); > > @@ -420,18 +455,19 @@ void mtk_ddp_add_comp_to_path(void __iomem *config_regs, > > } > > > > > > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel