From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8648C433EF for ; Fri, 10 Jun 2022 22:35:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6983111A96B; Fri, 10 Jun 2022 22:35:25 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2A1E011A962 for ; Fri, 10 Jun 2022 22:35:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654900524; x=1686436524; h=date:message-id:from:to:cc:subject:in-reply-to: references:mime-version; bh=Yox9r+6DHtn/l4WE+E5bs6tECZSCMnnmQq9aWefNZRA=; b=hU3xHp+6A6lswZNcppeEJzXC6yowwaUtta2ubCPnsFt8Qhz5vki7GffB R05xZkouFKyoQ2yc8ShwH5S2a1wy+0kV2/PeNyyX5TJ6bccwDmjm1DXtr 0cKrx5dZ01exE/ft8lpEXt8djbsXHAZ2YKFwgtC4FTzPaGV1rgh4aW5Jg hUV0z7Gcbnw3EW46e7nnDrQASN7kuQlpyrnn+XA9Qq8oNEECAgbq7JObt DEyZ/dvLZ/jYOoQHD4V2szGvsSxRi4jl0esrI0QM9kBUbyM6Xakg9C+7M FWN6tKYdp+qJs2WVzBw0aLQ4V5jh6PPFD9kN2Wu5svqnhedOk7ob10jk8 g==; X-IronPort-AV: E=McAfee;i="6400,9594,10374"; a="275298649" X-IronPort-AV: E=Sophos;i="5.91,291,1647327600"; d="scan'208";a="275298649" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jun 2022 15:35:23 -0700 X-IronPort-AV: E=Sophos;i="5.91,291,1647327600"; d="scan'208";a="638355787" Received: from adixit-mobl1.amr.corp.intel.com (HELO adixit-arch.intel.com) ([10.209.9.44]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jun 2022 15:35:23 -0700 Date: Fri, 10 Jun 2022 15:35:23 -0700 Message-ID: <87bkv0jges.wl-ashutosh.dixit@intel.com> From: "Dixit, Ashutosh" To: Badal Nilawar In-Reply-To: <20220523110841.1151431-4-badal.nilawar@intel.com> References: <20220523110841.1151431-1-badal.nilawar@intel.com> <20220523110841.1151431-4-badal.nilawar@intel.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/28.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Subject: Re: [Intel-gfx] [PATCH 3/3] drm/i915/hwmon: Add HWMON current voltage support X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Mon, 23 May 2022 04:08:41 -0700, Badal Nilawar wrote: > > @@ -370,6 +386,41 @@ i915_power_write(struct i915_hwmon_drvdata *ddat, u32 attr, int chan, long val) > return ret; > } > > +static umode_t > +i915_in_is_visible(const struct i915_hwmon_drvdata *ddat, u32 attr) > +{ > + struct drm_i915_private *i915 = ddat->dd_uncore->i915; > + > + switch (attr) { > + case hwmon_in_input: > + return (IS_DG1(i915) || IS_DG2(i915)) ? 0444 : 0; > + default: > + return 0; > + } > + > + return 0444; Don't return 0444 by default, let's just delete this line (return 0 by default from the switch statement). > +} > + > +static int > +i915_in_read(struct i915_hwmon_drvdata *ddat, u32 attr, long *val) > +{ > + struct i915_hwmon *hwmon = ddat->dd_hwmon; > + intel_wakeref_t wakeref; > + u32 reg_value; > + > + switch (attr) { > + case hwmon_in_input: > + with_intel_runtime_pm(ddat->dd_uncore->rpm, wakeref) > + reg_value = intel_uncore_read(ddat->dd_uncore, hwmon->rg.gt_perf_status); > + *val = DIV_ROUND_CLOSEST(REG_FIELD_GET(GEN12_VOLTAGE_MASK, reg_value) * 25, 10); > + break; > + default: > + return -EOPNOTSUPP; > + } > + > + return 0; Don't return 0 by default, let's just delete this line (return -EOPNOTSUPP by default from the switch statement).