From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932154AbbEaELc (ORCPT ); Sun, 31 May 2015 00:11:32 -0400 Received: from out3-smtp.messagingengine.com ([66.111.4.27]:49086 "EHLO out3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751613AbbEaELX (ORCPT ); Sun, 31 May 2015 00:11:23 -0400 X-Sasl-enc: Zd7EunT1aCOI2qfp0tM2IWgBxw/XRWkGcYjPuwOs29Qj 1433045481 Date: Sun, 31 May 2015 01:11:15 -0300 From: Henrique de Moraes Holschuh To: Finn Thain Cc: linux-kernel@vger.kernel.org, linux-m68k@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Darren Hart , ibm-acpi-devel@lists.sourceforge.net, platform-driver-x86@vger.kernel.org Subject: Re: [RFC 07/24] x86/thinkpad_acpi: Use arch_nvram_ops methods instead of nvram_read_byte() and nvram_write_byte() Message-ID: <20150531041114.GA30431@khazad-dum.debian.net> References: <20150531010132.289674310@telegraphics.com.au> <20150531010134.129479218@telegraphics.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150531010134.129479218@telegraphics.com.au> X-GPG-Fingerprint1: 4096R/39CB4807 C467 A717 507B BAFE D3C1 6092 0BD9 E811 39CB 4807 X-GPG-Fingerprint2: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 31 May 2015, Finn Thain wrote: > Make use of arch_nvram_ops in the thinkpad_acpi driver so that the > nvram_* function exports can be removed. > > This patch series was tested on a ThinkPad T43. Can you describe how you did the testing? A specific procedure is required to test the hotkey NVRAM polling codepaths (which will read several NVRAM bytes @10Hz by default) in a T43... > Signed-off-by: Finn Thain The patch looks correct, so I don't expect any problems. Provided that your test procedure did enable hotkey NVRAM polling in the T43 and your hotkeys all still worked fine, you have my Acked-by. > --- > drivers/platform/x86/thinkpad_acpi.c | 20 ++++++++++---------- > 1 file changed, 10 insertions(+), 10 deletions(-) > > Index: linux/drivers/platform/x86/thinkpad_acpi.c > =================================================================== > --- linux.orig/drivers/platform/x86/thinkpad_acpi.c 2015-05-31 11:00:59.000000000 +1000 > +++ linux/drivers/platform/x86/thinkpad_acpi.c 2015-05-31 11:01:07.000000000 +1000 > @@ -2311,30 +2311,30 @@ static void hotkey_read_nvram(struct tp_ > u8 d; > > if (m & TP_NVRAM_HKEY_GROUP_HK2) { > - d = nvram_read_byte(TP_NVRAM_ADDR_HK2); > + d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_HK2); > n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); > n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); > n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); > n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); > } > if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { > - d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); > + d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_THINKLIGHT); > n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); > } > if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { > - d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); > + d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_VIDEO); > n->displayexp_toggle = > !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); > } > if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { > - d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); > + d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_BRIGHTNESS); > n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) > >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; > n->brightness_toggle = > !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); > } > if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { > - d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); > + d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_MIXER); > n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) > >> TP_NVRAM_POS_LEVEL_VOLUME; > n->mute = !!(d & TP_NVRAM_MASK_MUTE); > @@ -6153,7 +6153,7 @@ static unsigned int tpacpi_brightness_nv > { > u8 lnvram; > > - lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) > + lnvram = (arch_nvram_ops.read_byte(TP_NVRAM_ADDR_BRIGHTNESS) > & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) > >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; > lnvram &= bright_maxlvl; > @@ -6178,7 +6178,7 @@ static void tpacpi_brightness_checkpoint > if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) > goto unlock; > lec &= TP_EC_BACKLIGHT_LVLMSK; > - b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); > + b_nvram = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_BRIGHTNESS); > > if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) > >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { > @@ -6186,7 +6186,7 @@ static void tpacpi_brightness_checkpoint > b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << > TP_NVRAM_POS_LEVEL_BRIGHTNESS); > b_nvram |= lec; > - nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); > + arch_nvram_ops.write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); > dbg_printk(TPACPI_DBG_BRGHT, > "updated NVRAM backlight level to %u (0x%02x)\n", > (unsigned int) lec, (unsigned int) b_nvram); > @@ -6794,13 +6794,13 @@ static void tpacpi_volume_checkpoint_nvr > if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) > goto unlock; > lec &= ec_mask; > - b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); > + b_nvram = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_MIXER); > > if (lec != (b_nvram & ec_mask)) { > /* NVRAM needs update */ > b_nvram &= ~ec_mask; > b_nvram |= lec; > - nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); > + arch_nvram_ops.write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); > dbg_printk(TPACPI_DBG_MIXER, > "updated NVRAM mixer status to 0x%02x (0x%02x)\n", > (unsigned int) lec, (unsigned int) b_nvram); > > -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh