From mboxrd@z Thu Jan 1 00:00:00 1970 From: Javier Martinez Canillas Subject: Re: [PATCH v6 6/8] mfd: cros_ec: Support multiple EC in a system Date: Fri, 05 Jun 2015 12:20:00 +0200 Message-ID: <557177D0.7000908@collabora.co.uk> References: <1433405154-16273-1-git-send-email-javier.martinez@collabora.co.uk> <1433405154-16273-7-git-send-email-javier.martinez@collabora.co.uk> <20150605101730.GE7058@x1> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150605101730.GE7058@x1> Sender: linux-kernel-owner@vger.kernel.org To: Lee Jones Cc: Samuel Ortiz , Olof Johansson , Doug Anderson , Bill Richardson , Simon Glass , Gwendal Grignou , Stephen Barber , Filipe Brandenburger , Todd Broch , Alexandru M Stan , Heiko Stuebner , linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Gwendal Grignou List-Id: devicetree@vger.kernel.org Hello Lee, On 06/05/2015 12:17 PM, Lee Jones wrote: > On Thu, 04 Jun 2015, Javier Martinez Canillas wrote: > >> From: Gwendal Grignou >> >> Chromebooks can have more than one Embedded Controller so the >> cros_ec device id has to be incremented for each EC registered. >> >> Add a new structure to represent multiple EC as different char >> devices (e.g: /dev/cros_ec, /dev/cros_pd). It connects to >> cros_ec_device and allows sysfs inferface for cros_pd. >> >> Also reduce number of allocated objects, make chromeos sysfs >> class object a static and add refcounting to prevent object >> deletion while command is in progress. >> >> Signed-off-by: Gwendal Grignou >> Reviewed-by: Dmitry Torokhov >> Signed-off-by: Javier Martinez Canillas >> Tested-by: Heiko Stuebner >> --- >> >> Changes since v5: >> - Don't allow to change the device name from DT. Suggested by Lee Jones. >> - Expand error messages in case of mfd_add_devices() failure. >> Suggested by Lee Jones. >> >> Changes since v4: >> - Use cros-ec-name DT property instead of devname. Suggested by Lee Jones. >> - Pass PLATFORM_DEVID_AUTO directly to mfd_add_devices(). >> Suggested by Lee Jones. >> - Add Heiko Stuebner tested-by tag. >> - Fix get_version by passing the cmd_offset to EC_CMD_GET_VERSION. >> >> Changes since v3: >> - Add defines for the EC and PD index constants. >> - Remove cros_ec_dev_register() and declare the mfd_cells as static structs. >> Suggested by Lee Jones. >> - Add a new line before the return statement in cros_ec_dev_register(). >> Suggested by Lee Jones. >> >> Changes since v2: None >> >> Changes since v1: >> - Squash patch that adds support to represent EC's as different >> char devices (e.g: /dev/cros_ec, /dev/cros_pd): >> https://chromium-review.googlesource.com/#/c/217297/ >> Suggested by Gwendal Grignou >> - Use cros_ec instead of cros-ec in the subject line to be consistent. >> Suggested by Gwendal Grignou >> --- >> drivers/input/keyboard/cros_ec_keyb.c | 2 +- >> drivers/mfd/cros_ec.c | 52 ++++++++++-- >> drivers/mfd/cros_ec_i2c.c | 1 - >> drivers/mfd/cros_ec_spi.c | 1 - >> drivers/platform/chrome/cros_ec_dev.c | 130 ++++++++++++++++++++--------- >> drivers/platform/chrome/cros_ec_dev.h | 7 -- >> drivers/platform/chrome/cros_ec_lightbar.c | 75 +++++++++-------- >> drivers/platform/chrome/cros_ec_lpc.c | 1 - >> drivers/platform/chrome/cros_ec_sysfs.c | 48 +++++------ >> include/linux/mfd/cros_ec.h | 44 ++++++++-- >> 10 files changed, 234 insertions(+), 127 deletions(-) > > For my own reference: > Acked-by: Lee Jones > > Let me know when you have all the appropriate Acks and I'll apply the > set. > I will, thanks a lot for your help and all the feedback. Best regards, Javier