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[104.188.17.28]) by smtp.gmail.com with ESMTPSA id y29sm755820pga.59.2019.01.16.22.28.23 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 16 Jan 2019 22:28:24 -0800 (PST) Date: Wed, 16 Jan 2019 22:27:44 -0800 From: Bjorn Andersson To: Jorge Ramirez-Ortiz Subject: Re: [PATCH 06/13] clk: qcom: hfpll: get parent clock names from DT Message-ID: <20190117062744.GC25498@builder> References: <1545039990-19984-1-git-send-email-jorge.ramirez-ortiz@linaro.org> <1545039990-19984-7-git-send-email-jorge.ramirez-ortiz@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1545039990-19984-7-git-send-email-jorge.ramirez-ortiz@linaro.org> User-Agent: Mutt/1.10.0 (2018-05-17) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190116_222825_997750_B7D602CD X-CRM114-Status: GOOD ( 17.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, heiko@sntech.de, mturquette@baylibre.com, will.deacon@arm.com, david.brown@linaro.org, linux-clk@vger.kernel.org, jassisinghbrar@gmail.com, jagan@amarulasolutions.com, andy.gross@linaro.org, sibis@codeaurora.org, devicetree@vger.kernel.org, arnd@arndb.de, niklas.cassel@linaro.org, robh+dt@kernel.org, horms+renesas@verge.net.au, linux-arm-kernel@lists.infradead.org, olof@lixom.net, sboyd@kernel.org, linux-kernel@vger.kernel.org, amit.kucheria@linaro.org, vkoul@kernel.org, enric.balletbo@collabora.com, georgi.djakov@linaro.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 On Mon 17 Dec 01:46 PST 2018, Jorge Ramirez-Ortiz wrote: > Allow accessing the parent clock name required for the driver > operation using the device tree node. > > This permits extending the driver to other platforms without having to > modify its source code. > > For backwards compatibility leave the previous value as default. > Reviewed-by: Bjorn Andersson > Co-developed-by: Niklas Cassel > Signed-off-by: Niklas Cassel > Signed-off-by: Jorge Ramirez-Ortiz > --- > drivers/clk/qcom/hfpll.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/clk/qcom/hfpll.c b/drivers/clk/qcom/hfpll.c > index a6de7101..87b7f46 100644 > --- a/drivers/clk/qcom/hfpll.c > +++ b/drivers/clk/qcom/hfpll.c > @@ -52,6 +52,7 @@ static int qcom_hfpll_probe(struct platform_device *pdev) > void __iomem *base; > struct regmap *regmap; > struct clk_hfpll *h; > + struct clk *pclk; > struct clk_init_data init = { > .parent_names = (const char *[]){ "xo" }, > .num_parents = 1, > @@ -75,6 +76,13 @@ static int qcom_hfpll_probe(struct platform_device *pdev) > 0, &init.name)) > return -ENODEV; > > + /* get parent clock from device tree (optional) */ > + pclk = devm_clk_get(dev, "xo"); > + if (!IS_ERR(pclk)) > + init.parent_names = (const char *[]){ __clk_get_name(pclk) }; > + else if (PTR_ERR(pclk) == -EPROBE_DEFER) > + return -EPROBE_DEFER; > + > h->d = &hdata; > h->clkr.hw.init = &init; > spin_lock_init(&h->lock); > -- > 2.7.4 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel