From: Lubomir Rintel <lkundrak@v3.sk> To: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Andy Shevchenko <andy@infradead.org>, Darren Hart <dvhart@infradead.org>, Platform Driver <platform-driver-x86@vger.kernel.org>, Russell King <linux@armlinux.org.uk>, James Cameron <quozl@laptop.org>, Mark Rutland <mark.rutland@arm.com>, Pavel Machek <pavel@ucw.cz>, Rob Herring <robh+dt@kernel.org>, Sebastian Reichel <sre@kernel.org>, "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@kernel.org>, linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>, devicetree <devicetree@vger.kernel.org>, Linux PM <linux-pm@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Subject: Re: [PATCH v4 06/15] Platform: OLPC: Move EC-specific functionality out from x86 Date: Thu, 10 Jan 2019 18:12:56 +0100 [thread overview] Message-ID: <fb3a50bde8975ea6843508a3c4220ee8013069e1.camel@v3.sk> (raw) In-Reply-To: <CAHp75Vf7ctTmncjOfMKL7MDAi=4rr2huBmZ7RsAnPKyJv7HTQQ@mail.gmail.com> On Wed, 2019-01-09 at 13:23 +0200, Andy Shevchenko wrote: > On Tue, Jan 8, 2019 at 7:59 PM Lubomir Rintel <lkundrak@v3.sk> wrote: > > Move the olpc-ec driver away from the X86 OLPC platform so that it could be > > used by the ARM based laptops too. Notably, the driver for the OLPC battery, > > which is also used on the ARM models, builds on this driver's interface. > > > > It is actually plaform independent: the OLPC EC commands with their argument > > and responses are mostly the same despite the delivery mechanism is > > different. > > > > Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> > > Acked-by: Pavel Machek <pavel@ucw.cz> > > #define OLPC_F_PRESENT 0x01 > > #define OLPC_F_DCON 0x02 > > -#define OLPC_F_EC_WIDE_SCI 0x04 > > Still same concern, i.e. if the initially added definitions are > coupled together by some reason, why we split them? > As I told either move all, or none or put in commit message how > decoupling would benefit. I'm not moving this one -- I'm deleting it, because it's no longer used or useful. I don't mind keeping it there if you think it should stay though. > > + /* EC version 0x5f adds support for wide SCI mask */ > > + if (ec->version >= 0x5f) { > > + __be16 ec_word = cpu_to_be16(bits); > > + > > + return olpc_ec_cmd(EC_WRITE_EXT_SCI_MASK, (void *) &ec_word, 2, NULL, 0); > > No space is needed in "(void *)&ec_word". > > > + } else { > > + unsigned char ec_byte = bits & 0xff; > > Shouldn't be u8? > > > + return olpc_ec_cmd(EC_WRITE_SCI_MASK, &ec_byte, 1, NULL, 0); > > + } > > +} > > +EXPORT_SYMBOL_GPL(olpc_ec_mask_write); > > +int olpc_ec_sci_query(u16 *sci_value) > > +{ > > + struct olpc_ec_priv *ec = ec_priv; > > + int ret; > > + > > + if (WARN_ON(!ec)) > > + return -ENODEV; > > + > > + /* EC version 0x5f adds support for wide SCI mask */ > > + if (ec->version >= 0x5f) { > > + __be16 ec_word; > > + > > + ret = olpc_ec_cmd(EC_EXT_SCI_QUERY, NULL, 0, (void *)&ec_word, 2); > > + if (ret == 0) > > + *sci_value = be16_to_cpu(ec_word); > > + } else { > > + unsigned char ec_byte; > > u8? > > > + > > + ret = olpc_ec_cmd(EC_SCI_QUERY, NULL, 0, &ec_byte, 1); > > + if (ret == 0) > > + *sci_value = ec_byte; > > + } > > + > > + return ret; > > +} > > +EXPORT_SYMBOL_GPL(olpc_ec_sci_query); I'll follow up with fixes for the above. Thanks. Lubo
WARNING: multiple messages have this Message-ID (diff)
From: Lubomir Rintel <lkundrak@v3.sk> To: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Mark Rutland <mark.rutland@arm.com>, devicetree <devicetree@vger.kernel.org>, James Cameron <quozl@laptop.org>, Linux PM <linux-pm@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, "maintainer:X86 ARCHITECTURE \(32-BIT AND 64-BIT\)" <x86@kernel.org>, Russell King <linux@armlinux.org.uk>, Platform Driver <platform-driver-x86@vger.kernel.org>, Rob Herring <robh+dt@kernel.org>, linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>, Pavel Machek <pavel@ucw.cz>, Sebastian Reichel <sre@kernel.org>, Darren Hart <dvhart@infradead.org>, Andy Shevchenko <andy@infradead.org> Subject: Re: [PATCH v4 06/15] Platform: OLPC: Move EC-specific functionality out from x86 Date: Thu, 10 Jan 2019 18:12:56 +0100 [thread overview] Message-ID: <fb3a50bde8975ea6843508a3c4220ee8013069e1.camel@v3.sk> (raw) In-Reply-To: <CAHp75Vf7ctTmncjOfMKL7MDAi=4rr2huBmZ7RsAnPKyJv7HTQQ@mail.gmail.com> On Wed, 2019-01-09 at 13:23 +0200, Andy Shevchenko wrote: > On Tue, Jan 8, 2019 at 7:59 PM Lubomir Rintel <lkundrak@v3.sk> wrote: > > Move the olpc-ec driver away from the X86 OLPC platform so that it could be > > used by the ARM based laptops too. Notably, the driver for the OLPC battery, > > which is also used on the ARM models, builds on this driver's interface. > > > > It is actually plaform independent: the OLPC EC commands with their argument > > and responses are mostly the same despite the delivery mechanism is > > different. > > > > Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> > > Acked-by: Pavel Machek <pavel@ucw.cz> > > #define OLPC_F_PRESENT 0x01 > > #define OLPC_F_DCON 0x02 > > -#define OLPC_F_EC_WIDE_SCI 0x04 > > Still same concern, i.e. if the initially added definitions are > coupled together by some reason, why we split them? > As I told either move all, or none or put in commit message how > decoupling would benefit. I'm not moving this one -- I'm deleting it, because it's no longer used or useful. I don't mind keeping it there if you think it should stay though. > > + /* EC version 0x5f adds support for wide SCI mask */ > > + if (ec->version >= 0x5f) { > > + __be16 ec_word = cpu_to_be16(bits); > > + > > + return olpc_ec_cmd(EC_WRITE_EXT_SCI_MASK, (void *) &ec_word, 2, NULL, 0); > > No space is needed in "(void *)&ec_word". > > > + } else { > > + unsigned char ec_byte = bits & 0xff; > > Shouldn't be u8? > > > + return olpc_ec_cmd(EC_WRITE_SCI_MASK, &ec_byte, 1, NULL, 0); > > + } > > +} > > +EXPORT_SYMBOL_GPL(olpc_ec_mask_write); > > +int olpc_ec_sci_query(u16 *sci_value) > > +{ > > + struct olpc_ec_priv *ec = ec_priv; > > + int ret; > > + > > + if (WARN_ON(!ec)) > > + return -ENODEV; > > + > > + /* EC version 0x5f adds support for wide SCI mask */ > > + if (ec->version >= 0x5f) { > > + __be16 ec_word; > > + > > + ret = olpc_ec_cmd(EC_EXT_SCI_QUERY, NULL, 0, (void *)&ec_word, 2); > > + if (ret == 0) > > + *sci_value = be16_to_cpu(ec_word); > > + } else { > > + unsigned char ec_byte; > > u8? > > > + > > + ret = olpc_ec_cmd(EC_SCI_QUERY, NULL, 0, &ec_byte, 1); > > + if (ret == 0) > > + *sci_value = ec_byte; > > + } > > + > > + return ret; > > +} > > +EXPORT_SYMBOL_GPL(olpc_ec_sci_query); I'll follow up with fixes for the above. Thanks. Lubo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-01-10 17:13 UTC|newest] Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-01-08 17:58 [PATCH v4 00/15] Add support for OLPC XO 1.75 Embedded Controller Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 01/15] ARM: export arm_pm_restart() Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 23:31 ` Russell King - ARM Linux 2019-01-08 23:31 ` Russell King - ARM Linux 2019-01-09 7:24 ` Lubomir Rintel 2019-01-09 7:24 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 02/15] dt-bindings: olpc,xo1.75-ec: Add OLPC XO-1.75 EC bindings Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 02/15] dt-bindings: olpc, xo1.75-ec: " Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 03/15] Platform: OLPC: Remove an unused include Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 04/15] Platform: OLPC: Add XO-1.75 EC driver Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 05/15] Platform: OLPC: Avoid a warning if the EC didn't register yet Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 06/15] Platform: OLPC: Move EC-specific functionality out from x86 Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-09 11:23 ` Andy Shevchenko 2019-01-09 11:23 ` Andy Shevchenko 2019-01-10 17:12 ` Lubomir Rintel [this message] 2019-01-10 17:12 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 07/15] Platform: OLPC: Use BIT() and GENMASK() for event masks Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-09 11:14 ` Andy Shevchenko 2019-01-09 11:14 ` Andy Shevchenko 2019-01-09 11:14 ` Andy Shevchenko 2019-01-08 17:58 ` [PATCH v4 08/15] Platform: OLPC: add a regulator for the DCON Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 09/15] dt-bindings: olpc_battery: Add XO-1.5 battery Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 10/15] x86, olpc: Use a correct version when making up a battery node Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 11/15] power: supply: olpc_battery: Use DT to get battery version Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 12/15] power: supply: olpc_battery: Move priv data to a struct Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 13/15] power: supply: olpc_battery: Use devm_power_supply_register() Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 14/15] power: supply: olpc_battery: Avoid using platform_info Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-08 17:58 ` [PATCH v4 15/15] power: supply: olpc_battery: Add OLPC XO 1.75 support Lubomir Rintel 2019-01-08 17:58 ` Lubomir Rintel 2019-01-09 11:15 ` [PATCH v4 00/15] Add support for OLPC XO 1.75 Embedded Controller Andy Shevchenko 2019-01-09 11:15 ` Andy Shevchenko 2019-01-09 16:37 ` Lubomir Rintel 2019-01-09 16:37 ` Lubomir Rintel 2019-01-10 10:08 ` Andy Shevchenko 2019-01-10 10:08 ` Andy Shevchenko
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