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Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.1 Subject: Re: [1/2] soc: mediatek: mmsys: add sw0_rst_offset in mmsys driver data Content-Language: en-US To: Rex-BC Chen , matthias.bgg@gmail.com Cc: chunkuang.hu@kernel.org, jitao.shi@mediatek.com, xinlei.lee@mediatek.com, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20220215131952.27861-1-rex-bc.chen@mediatek.com> <20220215131952.27861-2-rex-bc.chen@mediatek.com> From: AngeloGioacchino Del Regno In-Reply-To: <20220215131952.27861-2-rex-bc.chen@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220215_055458_204865_5D7C5704 X-CRM114-Status: GOOD ( 18.03 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Il 15/02/22 14:19, Rex-BC Chen ha scritto: > There are different software reset registers for difference MTK SoCs. > Therefore, we add a new variable "sw0_rst_offset" to control it. > > Signed-off-by: Rex-BC Chen > --- > drivers/soc/mediatek/mt8183-mmsys.h | 2 ++ > drivers/soc/mediatek/mtk-mmsys.c | 6 ++++-- > drivers/soc/mediatek/mtk-mmsys.h | 3 +-- > 3 files changed, 7 insertions(+), 4 deletions(-) > > diff --git a/drivers/soc/mediatek/mt8183-mmsys.h b/drivers/soc/mediatek/mt8183-mmsys.h > index 9dee485807c9..0c021f4b76d2 100644 > --- a/drivers/soc/mediatek/mt8183-mmsys.h > +++ b/drivers/soc/mediatek/mt8183-mmsys.h > @@ -25,6 +25,8 @@ > #define MT8183_RDMA0_SOUT_COLOR0 0x1 > #define MT8183_RDMA1_SOUT_DSI0 0x1 > > +#define MT8183_MMSYS_SW0_RST_B 0x140 > + > static const struct mtk_mmsys_routes mmsys_mt8183_routing_table[] = { > { > DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0, > diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c > index 0da25069ffb3..cab62c3eac05 100644 > --- a/drivers/soc/mediatek/mtk-mmsys.c > +++ b/drivers/soc/mediatek/mtk-mmsys.c > @@ -49,12 +49,14 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { > .clk_driver = "clk-mt8173-mm", > .routes = mmsys_default_routing_table, > .num_routes = ARRAY_SIZE(mmsys_default_routing_table), > + .sw0_rst_offset = MT8183_MMSYS_SW0_RST_B, > }; > > static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = { > .clk_driver = "clk-mt8183-mm", > .routes = mmsys_mt8183_routing_table, > .num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table), > + .sw0_rst_offset = MT8183_MMSYS_SW0_RST_B, > }; > > static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = { > @@ -128,14 +130,14 @@ static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned l > > spin_lock_irqsave(&mmsys->lock, flags); > > - reg = readl_relaxed(mmsys->regs + MMSYS_SW0_RST_B); > + reg = readl_relaxed(mmsys->regs + mmsys->data->sw0_rst_offset); > > if (assert) > reg &= ~BIT(id); > else > reg |= BIT(id); > > - writel_relaxed(reg, mmsys->regs + MMSYS_SW0_RST_B); > + writel_relaxed(reg, mmsys->regs + mmsys->data->sw0_rst_offset); > > spin_unlock_irqrestore(&mmsys->lock, flags); > > diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h > index 8b0ed05117ea..83320019b4cf 100644 > --- a/drivers/soc/mediatek/mtk-mmsys.h > +++ b/drivers/soc/mediatek/mtk-mmsys.h > @@ -78,8 +78,6 @@ > #define DSI_SEL_IN_RDMA 0x1 > #define DSI_SEL_IN_MASK 0x1 > > -#define MMSYS_SW0_RST_B 0x140 > - > struct mtk_mmsys_routes { > u32 from_comp; > u32 to_comp; > @@ -92,6 +90,7 @@ struct mtk_mmsys_driver_data { > const char *clk_driver; > const struct mtk_mmsys_routes *routes; > const unsigned int num_routes; > + const unsigned int sw0_rst_offset; I don't think that this offset will ever be larger than 0xffff. Can we use u16 here instead? > }; > > /* _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek