From: Stephen Boyd <sboyd@codeaurora.org> To: Andy Gross <andy.gross@linaro.org> Cc: linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Bjorn Andersson <bjorn.andersson@linaro.org>, devicetree@vger.kernel.org, jilai wang <jilaiw@codeaurora.org> Subject: Re: [Patch v5 2/8] firmware: qcom: scm: Convert SCM to platform driver Date: Thu, 2 Jun 2016 15:14:24 -0700 [thread overview] Message-ID: <20160602221424.GM28218@codeaurora.org> (raw) In-Reply-To: <1463111221-6963-3-git-send-email-andy.gross@linaro.org> On 05/12, Andy Gross wrote: > This patch converts the Qualcomm SCM firmware driver into a platform > driver. And introduces clk enable/disable + rate setting logic because the firmware uses crypto clks during some scm calls. > > + > +static struct platform_driver qcom_scm_driver = { > + .driver = { > + .name = "qcom_scm", > + .of_match_table = qcom_scm_dt_match, > + }, > + .probe = qcom_scm_probe, > +}; > + > +static int __init qcom_scm_init(void) > +{ > + struct device_node *np, *parent; > + int ret; > + > + np = of_find_matching_node_and_match(NULL, qcom_scm_dt_match, NULL); Why can't we find a node called "firmware" in the root of the tree? That would be clearer what's going on here, and avoid the need to do the of_get_next_parent() dance, which just feels awkward. > + > + if (!np) > + return -ENODEV; > + > + parent = of_get_next_parent(np); > + ret = of_platform_populate(parent, qcom_scm_dt_match, NULL, NULL); > + > + of_node_put(parent); > + > + if (ret) > + return ret; > + > + return platform_driver_register(&qcom_scm_driver); > +} -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
WARNING: multiple messages have this Message-ID (diff)
From: sboyd@codeaurora.org (Stephen Boyd) To: linux-arm-kernel@lists.infradead.org Subject: [Patch v5 2/8] firmware: qcom: scm: Convert SCM to platform driver Date: Thu, 2 Jun 2016 15:14:24 -0700 [thread overview] Message-ID: <20160602221424.GM28218@codeaurora.org> (raw) In-Reply-To: <1463111221-6963-3-git-send-email-andy.gross@linaro.org> On 05/12, Andy Gross wrote: > This patch converts the Qualcomm SCM firmware driver into a platform > driver. And introduces clk enable/disable + rate setting logic because the firmware uses crypto clks during some scm calls. > > + > +static struct platform_driver qcom_scm_driver = { > + .driver = { > + .name = "qcom_scm", > + .of_match_table = qcom_scm_dt_match, > + }, > + .probe = qcom_scm_probe, > +}; > + > +static int __init qcom_scm_init(void) > +{ > + struct device_node *np, *parent; > + int ret; > + > + np = of_find_matching_node_and_match(NULL, qcom_scm_dt_match, NULL); Why can't we find a node called "firmware" in the root of the tree? That would be clearer what's going on here, and avoid the need to do the of_get_next_parent() dance, which just feels awkward. > + > + if (!np) > + return -ENODEV; > + > + parent = of_get_next_parent(np); > + ret = of_platform_populate(parent, qcom_scm_dt_match, NULL, NULL); > + > + of_node_put(parent); > + > + if (ret) > + return ret; > + > + return platform_driver_register(&qcom_scm_driver); > +} -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-06-02 22:14 UTC|newest] Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-05-13 3:46 [Patch v5 0/8] Qualcomm SCM Rework Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 3:46 ` [Patch v5 1/8] dt/bindings: firmware: Add Qualcomm SCM binding Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 23:32 ` Bjorn Andersson 2016-05-13 23:32 ` Bjorn Andersson 2016-05-16 16:09 ` Rob Herring 2016-05-16 16:09 ` Rob Herring 2016-06-02 22:14 ` Stephen Boyd 2016-06-02 22:14 ` Stephen Boyd 2016-05-13 3:46 ` [Patch v5 2/8] firmware: qcom: scm: Convert SCM to platform driver Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 23:33 ` Bjorn Andersson 2016-05-13 23:33 ` Bjorn Andersson 2016-06-02 22:14 ` Stephen Boyd [this message] 2016-06-02 22:14 ` Stephen Boyd 2016-06-03 3:45 ` Andy Gross 2016-06-03 3:45 ` Andy Gross 2016-05-13 3:46 ` [Patch v5 3/8] firmware: qcom: scm: Use atomic SCM for cold boot Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 23:37 ` Bjorn Andersson 2016-05-13 23:37 ` Bjorn Andersson [not found] ` <1463111221-6963-4-git-send-email-andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-06-02 22:15 ` Stephen Boyd 2016-06-02 22:15 ` Stephen Boyd 2016-06-02 22:15 ` Stephen Boyd 2016-05-13 3:46 ` [Patch v5 4/8] firmware: qcom: scm: Generalize shared error map Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 3:46 ` [Patch v5 5/8] firmware: qcom: scm: Convert to streaming DMA APIS Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 23:48 ` Bjorn Andersson 2016-05-13 23:48 ` Bjorn Andersson 2016-05-16 5:08 ` Andy Gross 2016-05-16 5:08 ` Andy Gross 2016-05-23 19:26 ` Kevin Hilman 2016-05-23 19:26 ` Kevin Hilman 2016-05-23 21:02 ` Andy Gross 2016-05-23 21:02 ` Andy Gross 2016-05-25 3:37 ` Andy Gross 2016-05-25 3:37 ` Andy Gross 2016-05-25 20:50 ` Kevin Hilman 2016-05-25 20:50 ` Kevin Hilman [not found] ` <7hbn3tg8ul.fsf-rdvid1DuHRBWk0Htik3J/w@public.gmane.org> 2016-05-25 21:15 ` Andy Gross 2016-05-25 21:15 ` Andy Gross 2016-05-25 21:15 ` Andy Gross 2016-06-02 23:26 ` Stephen Boyd 2016-06-02 23:26 ` Stephen Boyd 2016-06-03 3:57 ` Andy Gross 2016-06-03 3:57 ` Andy Gross 2016-05-13 3:46 ` [Patch v5 6/8] firmware: qcom: scm: Add support for ARM64 SoCs Andy Gross 2016-05-13 3:46 ` Andy Gross 2016-05-13 23:50 ` Bjorn Andersson 2016-05-13 23:50 ` Bjorn Andersson 2016-06-02 22:28 ` Stephen Boyd 2016-06-02 22:28 ` Stephen Boyd 2016-06-03 3:48 ` Andy Gross 2016-06-03 3:48 ` Andy Gross 2016-05-13 3:47 ` [Patch v5 7/8] dts: qcom: apq8084: Add SCM firmware node Andy Gross 2016-05-13 3:47 ` Andy Gross 2016-06-02 22:28 ` Stephen Boyd 2016-06-02 22:28 ` Stephen Boyd 2016-05-13 3:47 ` [Patch v5 8/8] arm64: dts: msm8916: " Andy Gross 2016-05-13 3:47 ` Andy Gross 2016-06-02 22:29 ` Stephen Boyd 2016-06-02 22:29 ` Stephen Boyd
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