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[93.34.90.105]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-4214a4abdd5sm44772195e9.0.2024.06.05.12.03.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Jun 2024 12:03:45 -0700 (PDT) From: Christian Marangi To: Tom Rini , Lukasz Majewski , Sean Anderson , Ryder Lee , Weijie Gao , Chunfeng Yun , GSS_MTK_Uboot_upstream , Heiko Schocher , Peng Fan , Jaehoon Chung , Joe Hershberger , Ramon Fried , Jagan Teki , Christian Marangi , Sam Shih , Francois Berder , Simon Glass , Julien Masson , Peter Robinson , Marek Vasut , Bo-Cun Chen , This contributor prefers not to receive mails , Michal Simek , John Crispin , Heinrich Schuchardt , Mason Huo , Stefan Roese , Sumit Garg , Mark Kettenis , Sergei Antonov , Mayuresh Chitale , "SkyLake.Huang" , =?utf-8?q?Nicol=C3=B2_Verones?= =?utf-8?q?e?= , u-boot@lists.denx.de Subject: [PATCH 05/11] i2c: mediatek: add support for optional arb and pmic clock Date: Wed, 5 Jun 2024 21:02:12 +0200 Message-ID: <20240605190220.17616-6-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240605190220.17616-1-ansuelsmth@gmail.com> References: <20240605190220.17616-1-ansuelsmth@gmail.com> MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 05 Jun 2024 21:37:35 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add support for optional arb and pmic clock for i2c provided in upstream linux DTSI. Signed-off-by: Christian Marangi Reviewed-by: Heiko Schocher --- drivers/i2c/mtk_i2c.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/drivers/i2c/mtk_i2c.c b/drivers/i2c/mtk_i2c.c index 5592fe91817..3450177741a 100644 --- a/drivers/i2c/mtk_i2c.c +++ b/drivers/i2c/mtk_i2c.c @@ -221,6 +221,8 @@ struct mtk_i2c_priv { void __iomem *pdmabase; /* dma base address*/ struct clk clk_main; /* main clock for i2c bus */ struct clk clk_dma; /* DMA clock for i2c via DMA */ + struct clk clk_arb; /* DMA clock for i2c ARB */ + struct clk clk_pmic; /* DMA clock for i2c PMIC */ const struct mtk_i2c_soc_data *soc_data; /* Compatible data for different IC */ int op; /* operation mode */ bool zero_len; /* Only transfer slave address, no data */ @@ -255,6 +257,18 @@ static int mtk_i2c_clk_enable(struct mtk_i2c_priv *priv) if (ret) return log_msg_ret("enable clk_dma", ret); + if (priv->clk_arb.dev) { + ret = clk_enable(&priv->clk_arb); + if (ret) + return log_msg_ret("enable clk_arb", ret); + } + + if (priv->clk_pmic.dev) { + ret = clk_enable(&priv->clk_pmic); + if (ret) + return log_msg_ret("enable clk_pmic", ret); + } + return 0; } @@ -262,6 +276,18 @@ static int mtk_i2c_clk_disable(struct mtk_i2c_priv *priv) { int ret; + if (priv->clk_pmic.dev) { + ret = clk_disable(&priv->clk_pmic); + if (ret) + return log_msg_ret("disable clk_pmic", ret); + } + + if (priv->clk_arb.dev) { + ret = clk_disable(&priv->clk_arb); + if (ret) + return log_msg_ret("disable clk_arb", ret); + } + ret = clk_disable(&priv->clk_dma); if (ret) return log_msg_ret("disable clk_dma", ret); @@ -748,6 +774,10 @@ static int mtk_i2c_of_to_plat(struct udevice *dev) ret = clk_get_by_index(dev, 1, &priv->clk_dma); + /* optional i2c clock */ + clk_get_by_name(dev, "arb", &priv->clk_arb); + clk_get_by_name(dev, "pmic", &priv->clk_pmic); + return ret; }